Summary of significant floods in the United States, Puerto Rico, and the Virgin Islands, 1970 through 1989
U;S.'Department of the Interior U:S, Summary of United States, Puerto RI&®, Virgin Islands, 1970 throu in urxrJIf Paper 25D2 science foractmnging world Availability of Publications of the U.S. Geological Survey Order U.S. Geological Survey (USGS) publications by calling the toll-free telephone number 1-888-ASK-USGS or contact- ing the offices listed below. Detailed ordering instructions, along with prices of the last offerings, are given in the cur- rent-year issues of the catalog "New Publications of the U.S. Geological Survey." Books, Maps, and Other Publications By Mail Books, maps, and other publications are available by mail from USGS Information Services Box 25286, Federal Center Denver, CO 80225 Publications include Professional Papers, Bulletins, Water- Supply Papers, Techniques of Water-Resources Investigations, Circulars, Fact Sheets, publications of general interest, single copies of permanent USGS catalogs, and topographic and thematic maps. Over the Counter Books, maps, and other publications of the U.S. …
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U;S.'Department of the Interior U:S, Summary of United States, Puerto RI&®, Virgin Islands, 1970 throu in urxrJIf Paper 25D2 science foractmnging world Availability of Publications of the U.S. Geological Survey Order U.S. Geological Survey (USGS) publications by calling the toll-free telephone number 1-888-ASK-USGS or contact- ing the offices listed below. Detailed ordering instructions, along with prices of the last offerings, are given in the cur- rent-year issues of the catalog "New Publications of the U.S. Geological Survey." Books, Maps, and Other Publications By Mail Books, maps, and other publications are available by mail from USGS Information Services Box 25286, Federal Center Denver, CO 80225 Publications include Professional Papers, Bulletins, Water- Supply Papers, Techniques of Water-Resources Investigations, Circulars, Fact Sheets, publications of general interest, single copies of permanent USGS catalogs, and topographic and thematic maps. 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World Wide Web Minerals information is available electronically at http://minerals.er.usgs.gov/minerals/ Subscription to the catalog "New Publications of the U.S. Geological Survey" Those wishing to be placed on a free subscription list for the catalog "New Publications of the U.S. Geological Survey" should write to U.S. Geological Survey 903 National Center Reston, VA 20192 U.S. Department of the Interior U.S. Geological Survey Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 By C.A. PERRY, B.N. ALDRIDGE, and H.C. ROSS Water-Supply Paper 2502 U.S. Department of the Interior Bruce Babbitt, Secretary U.S. Geological Survey Charles G. Groat, Director United States Government Printing Office: 2001 For sale by the USGS Map Distribution Box 25286, Building 810 Denver Federal Center Denver, CO 80225 Library of Congress Cataloging-in-Publication Data Perry, Charles A. Summary of significant floods in the United States, Puerto Rico, and the Virgin Islands, 1970 through 1989 / by C.A. Perry, B.N. Aldridge, and H.C. Ross. 597 p. cm. (U.S. Geological Survey water-supply paper; 2502) Includes bibliographical references and index. 1. Floods United States. 2. Floods Puerto Rico. 3. Floods Virgin Islands of the United States. I. Aldridge, B. N. (Byron Neil) II. Ross, H. C. III. Title. IV Series. GB1399.2 .P46 2000 551.48'9'097309045 dc21 00-050398 Cover: Hannibal, Missouri, April 1973 (photograph courtsey of National Oceanic and Atmospheric Administration). CONTENTS Glossary ..................................................................................................................................................^ XIII Abstract.................................................................................................................................................................................. 1 Introduction .................................................................................................................................................................^ 1 Previous Flood Summary Reports............................................................................................................................... 2 Determination of Maximum Stages and Discharges................................................................................................... 3 Explanation of Flood Information............................................................................................................................... 3 Selected References.......................................................................................................................................................^ 6 Summary of Significant Floods, 1970Through 1989, by Year............................................................................................. 8 1970 .....................................................................................................^^ 8 Selected References for 1970 ..................................................................................................................................... 8 1971 ............................................................................................................................................................................ 11 Selected References for 1971 ..................................................................................................................................... 11 1972 ............................................................................................................................................. 14 Selected References for 1972 ..................................................................................................................................... 16 1973 ...........................................................................^^^^ 18 Selected References for 1973 ..................................................................................................................................... 20 1974 ..............................................................................................................................................^ 21 Selected References for 1974 ..................................................................................................................................... 23 1975 ................................................................................................................................................ 24 Selected References for 1975 ..................................................................................................................................... 26 1976 ........................................................... 27 Selected References for 1976 ..................................................................................................................................... 29 1977 ........................................................................................................^ 30 Selected References for 1977 ..................................................................................................................................... 32 1978 .............................................................................^^^ 34 Selected References for 1978 ..................................................................................................................................... 36 1979 ............................................................................................................................................... 39 Selected References for 1979 ..................................................................................................................................... 39 1980 ........................................................................................................_^ 42 Selected References for 1980 ..................................................................................................................................... 44 1981 ............................................................................................................................................... 45 Selected References for 1981 ..................................................................................................................................... 47 1982 .............................................................................................................................................. 48 Selected References for 1982 ..................................................................................................................................... 50 1983 .................................................................._ 51 Selected References for 1983 ..................................................................................................................................... 53 1984 .............................................................................^ 54 Selected References for 1984 ..................................................................................................................................... 54 1985 .........................................................._ 57 Selected References for 1985 ..................................................................................................................................... 59 1986 ............................................................................................................................................................................ 60 Selected References for 1986 ..................................................................................................................................... 62 1987 .........................................................^ 63 Selected References for 1987 ..................................................................................................................................... 65 1988 .........................................................................^^^^ 66 Selected References for 1988 ..................................................................................................................................... 66 1989 ............................................................................................................................................. 68 Selected References for 1989 .......................................................................................................................... 68 Contents III CONTENTS Continued Significant Floods, 1970 Through 1989, by State or Territory............................................................................................. 71 Alabama ..................................................................................................................................................................... 71 Hydroclimatology............................................................................................................................................. 71 Significant Roods ............................................................................................................................................. 71 References....................................................^ 71 Alaska.......................................................................................................................................................................... 79 Hydroclimatology............................................................................................................................................. 79 Significant Floods ............................................................................................................................................. 79 References.........................................................................................................^ 80 Arizona.....................................................................................................................................................^ 91 Hydroclimatology............................................................................................................................................. 91 Significant Floods ............................................................................................................................................. 91 References.....................................................................^ 91 Arkansas........................................................................................................................................................ 104 Hydroclimatology............................................................................................................................................. 104 Significant Floods............................................................................................................................................. 104 References..................................................................... 104 California ........................................................................................................................................................ 113 Hydroclimatology ..................................................................................................................................... 113 Significant Floods .............................................................................. ............. ...................................... 113 References.................................................................................................................................................... 113 Colorado..............................................^ 139 Hydroclimatology............................................................................................................................................. 139 Significant Floods ............................................................................................................................................. 139 References......................................................................................................................................... 140 Connecticut ......................................................................................................................................... 159 Hydroclimatology............................................................................................................................................. 159 Significant Floods ............................................................................................................................................. 159 References....................................................................................................................................... 159 Delaware ................................................................................................................................................. 166 Hydroclimatology............................................................................................................................................. 166 Significant Floods ............................................................................................................................................. 166 References................................................................................................................................. 166 Florida ................................................................................................................................................... 169 Hydroclimatology............................................................................................................................................. 169 Significant Floods ............................................................................................................................................. 169 References.................................................................................................................................... 169 Georgia... ............................................................................................................................................... 180 Hydroclimatology............................................................................................................................................. 180 Significant Floods ............................................................................................................................................. 180 Reference.......................................................................................................................................................... 180 Hawaii .....-....------.-....---.-.......................--.......-.............-......-.......-. .-.....-.....-- .--...............-.--..-....... 193 Hydroclimatology............................................................................................................................................. 193 Significant Floods ............................................................................................................................................. 193 References......................................................................................................................................................... 193 Idaho..........................................^ 201 Hydroclimatology............................................................................................................................................. 201 Significant Floods ............................................................................................................................................. 201 References................................................................................................................................................ 201 IV Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 CONTENTS Continued Significant Floods, 1970 Through 1989, by State or Territory Continued Illinois ................................................. 209 Hydroclimatology ............................................................................................................................................. 209 Significant Floods ............................................................................................................................................. 209 References...................................................^ 209 Indiana...................................................................................................................................................^ 222 Hydroclimatology............................................................................................................................................. 222 Significant Floods ............................................................................................................................................. 222 References.......................................................................................................................................................^ 222 Iowa.........................................................» 231 Hydroclimatology ............................................................................................................................................. 231 Significant Floods ............................................................................................................................................. 231 References.....................................................................................................................................................^ 231 Kansas ....................................................................................................................................................... 239 Hydroclimatology............................................................................................................................................. 239 Significant Floods ............................................................................................................................................. 239 References......................................................................................................^ 239 Kentucky ............................. 249 Hydroclimatology ............................................................................................................................................. 249 Significant Floods ............................................................................................................................................. 249 References..............................................................^ 249 Louisiana..................................................................^ 259 Hydroclimatology............................................................................................................................................. 259 Significant Floods ............................................................................................................................................. 259 References..................................................................^ 259 Maine .................................................................... 269 Hydroclimatology............................................................................................................................................. 269 Significant Floods ............................................................................................................................................. 269 References......................................................................................................................................................^ 269 Maryland and the District of Columbia...................................................................................................................... 274 Hydroclimatology............................................................................................................................................. 274 Significant Floods ............................................................................................................................................. 274 References....................................................................^ 274 Massachusetts......................................................................................................................................................^ 282 Hydroclimatology............................................................................................................................................. 282 Significant Floods ............................................................................................................................................. 282 References.............................................................................................................................................^ 282 Michigan ................................................................... 288 Hydroclimatology ............................................................................................................................................. 288 Significant Floods ............................................................................................................................................. 288 References........................................................................................................................ 289 Minnesota.......................................................................................................................................................^ 300 Hydroclimatology ..................................................................... ;....................................................................... 300 Significant Floods ............................................................................................................................................. 300 References..................,..........................,.......................^ 300 Mississippi.................................................................................................................................................................. 310 Hydroclimatology ............................................................................................................................................. 310 Significant Floods............................................................................................................................................. 310 References......................................................................................................................................................... 310 Contents V CONTENTS Continued Significant Floods, 1970 Through 1989, by State Continued Missouri...................................................................................................................................................................... 321 Hydroclimatology ............................................................................................................................................. 321 Significant Floods ............................................................................................................................................. 321 References......................................................................................................................................................... 321 Montana ............................................................................................................................................... 329 Hydroclimatology ............................................................................................................................................. 329 Significant Floods ............................................................................................................................................. 329 Reference .......................................................................................................................................................... 329 Nebraska...................................................................................................................................................................... 348 Hydroclimatology............................................................................................................................................. 348 Significant Floods ............................................................................................................................................. 348 References......................................................... 348 Nevada......................................................................................................................................................................... 354 Hydroclimatology............................................................................................................................................. 354 Significant Floods ............................................................................................................................................. 354 References......................................................................................................................................................... 354 New Hampshire........................................................................................................................................................... 362 Hydroclimatology ............................................................................................................................................. 362 Significant Floods ............................................................................................................................................. 362 References......................................................................................................................................................... 362 New Jersey.................................................................................................................................................................. 365 Hydroclimatology ............................................................................................................................................. 365 Significant Floods ............................................................................................................................................. 365 References......................................................................................................................................................... 365 New Mexico.............................................................................................^ 374 Hydroclimatology............................................................................................................................................. 374 Significant Floods ..............................................................................................................................................374 References.....................................................................^ 374 New York.................................................................................................................................................... 384 Hydroclimatology ............................................................................................................................................. 384 Significant Floods ............................................................................................................................................. 384 References.......................................................................................................^ 384 North Carolina............................................................................................................................................................. 400 Hydroclimatology ............................................................................................................................................. 400 Significant Floods ............................................................................................................................................. 400 References.......................................................................................................................................................^ 400 North Dakota.................................................................... 409 Hydroclimatology ............................................................................................................................................. 409 Significant Floods ............................................................................................................................................. 409 References........................................................................................................................................................ 409 Ohio............................................................................................................................................................................. 416 Hydroclimatology............................................................................................................................................. 416 Significant Floods............................................................................................................................................. 416 References......................................................................^ 416 Oklahoma............................................................................................................................................................. 423 Hydroclimatology............................................................................................................................................. 423 Significant Floods ............................................................................................................................................. 423 References......................................................................................................................................................... 424 VI Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 CONTENTS Continued Significant Floods, 1970 Through 1989, by State Continued Oregon...........................................................................,................................................................................^ 431 Hydroclimatology............................................................................................................................................. 431 Significant Floods ............................................................................................................................................. 431 References......................................................................................................................................................^ 431 Pennsylvania............................................................................................................................................................... 446 Hydroclimatology............................................................................................................................................. 446 Significant Floods ............................................................................................................................................. 446 References............................................................................................................^ 446 Puerto Rico.................................................................................................................................................................. 462 Hydroclimatology............................................................................................................................................. 462 Significant Floods ............................................................................................................................................. 462 References..........................................................................................................^ 462 Rhode Island .......................................................................................................................................... 466 Hydroclimatology ............................................................................................................................................. 466 Significant Floods ............................................................................................................................................. 466 References..........................................................................................................._ 466 South Carolina......................................................................................................................................^ 469 Hydroclimatology............................................................................................................................................. 469 Significant Floods ............................................................................................................................................. 469 References....................................................................^ 469 South Dakota......................................................^ 474 Hydroclimatology............................................................................................................................................. 474 Significant Floods ............................................................................................................................................. 474 References......................................................................................................................................................^ 474 Tennessee ............................................................................. 481 Hydroclimatology............................................................................................................................................. 481 Significant Floods ............................................................................................................................................. 481 References......................................................................................................................................................... 481 Texas .............................................................._ 493 Hydroclimatology............................................................................................................................................. 493 Significant Floods ............................................................................................................................................. 493 References...................................................................................................................................................^ 493 Utah...................................._ 511 Hydroclimatology ............................................................................................................................................. 511 Significant Floods ............................................................................................................................................. 511 References.................................................................................................................................................^ 511 Vermont...........................................................................^ 521 Hydroclimatology............................................................................................................................................. 521 Significant Floods ............................................................................................................................................. 521 References......................................................................................................................................................... 521 Virginia...............................................................^ 526 Hydroclimatology............................................................................................................................................. 526 Significant Floods ............................................................................................................................................. 526 References......................................................................................................................................................... 526 Washington................................................................................................................................................ 540 Hydroclimatology............................................................................................................................................. 540 Significant Floods ............................................................................................................................................. 540 References......................................................................................................................................................... 540 Contents VII CONTENTS Continued Significant Floods, 1970 Through 1989, by State Continued West Virgmia...........................................................................................^^ 554 Hydroclimatology ............................................................................................................................................. 554 Significant Floods ............................................................................................................................................. 554 References......................................................................................................................................................... 554 Wisconsin.................................................................................................................................................................... 561 Hydroclimatology............................................................................................................................................. 561 Significant Floods ............................................................................................................................................. 561 References.........................................................................................................._^ 561 Wyoming. ..................................................................................................................................................................^ 570 Hydroclimatology............................................................................................................................................. 570 Significant Floods ............................................................................................................................................. 570 References......................................................................................................................................................... 570 Index...................................................................................................._^ 581 FIGURES 1. Graph showing example of a stage-discharge relation and upward extension....................................................... 3 2. Graph showing maximum discharge versus drainage area and envelope curve for a region................................. 6 3-22. Maps showing percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during: 3. 1970.................................................................^ 9 4. 1971...........................................................................................................................................................^ 12 5. 1972................................................................. 15 6. 1973................................................................................................................................................. 19 7. 1974....................................................................................................^ 22 8. 1975................................................................................................^ 25 9. 1976..........................................................................................................................................................^ 28 10. 1977...........................................................................................................................................^ 31 11. 1978................................................................................................................................................................... 35 12. 1979.......................................................................................................................................... 40 13. 1980.............................................^ 43 14. 1981.................................................................... 46 15. 1982...................................................................................................................................... 49 16. 1983.................................................................... 52 17. 1984.................................................................^ 55 18. 1985.................................................................. 58 19. 1986................................................................................................................................................. 61 20. 1987................................................................................................................................................. 64 21. 1988....................................................................................................................................... 67 22. 1989....................................................................................................................................... 69 23-73. Map showing location of streamflow-gaging stations with significant floods during 1970-89 for: 23. Alabama........................................................................................................................................ 72 24. Alaska............................................................................................................................................ 81 25. Arizona.......................................................................................................................................................... 92 26. Arkansas....................................................................................................................................................... 105 27. California...................................................... 114 28. Colorado............................................................................................................................. 141 29. Connecticut.................................................................................................................................................... 160 30. Delaware............................................................................................................................ 167 VIM Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 CONTENTS Continued FIGURES Continued 31. Florida............................................................................................................................................................... 169 32. Georgia.............................................................................................................................................................. 181 33. Hawaii............................................................................................................................................................... 194 34. Idaho.................................................................................................................................................................. 202 35. Illinois ............................................................................................................................................................... 210 36. Indiana............................................................................................................................................................... 223 37. lowa................................................................................................................................................^ 232 38. Kansas............................................................................................................................................................... 240 39. Kentucky ................................................................................................................................... 250 40. Louisiana..............................................................................................................^ 260 41. Maine.........................................................^ 270 42. Maryland and the District of Columbia ............................................................................................................ 275 43. Massachusetts................................................................................................................................,.................^ 283 44. Michigan ............................................................... 290 45. Minnesota.......................................................................................................................................................... 301 46. Mississippi....................................................................................................................................................^ 311 47. Missouri..............................................................^ 322 48. Montana.........................................................................................................^ 330 49. Nebraska.........................................................................................................................................^ 349 50. Nevada..........................................................................................................^ 355 51. New Hampshire................................................................................................................................................. 363 52. New Jersey ........................................................................................................................................................ 366 53. New Mexico...................................................................................................................................................... 375 54. NewYork..............................................^ 385 55. North Carolina...................................................................................................................................^ 401 56. NorthDakota.............................................................._ 410 57. Ohio............................................................^ 417 58. Oklahoma.................................._ 425 59. Oregon..............................................................................................................^ 432 60. Pennsylvania................................................^ 447 61. Puerto Rico........................................................................................................................................................ 463 62. Rhode Island...............................................^ 467 63. South Carolina..............................................................................................^ 470 64. South Dakota....................................................................^ 475 65. Tennessee.......................................................................................................................................................... 482 66. Texas.................................................................._ 494 67. Utah.............................................................._ 512 68. Vermont............................................................................................................................................................. 522 69. Virginia.............................................................................................................................................................. 527 70. Washington............................................................... 541 71. West Wginia..........................................................._ 555 72. Wisconsin.......................................................................................................................................................... 562 73. Wyoming........................................................................................................................................................... 571 TABLES 1. Example of summary table presented in State or territory compilations................................................................ 4 Contents IX CONTENTS Continued TABLES Continued 2-52. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in: 2. Alabama ......................................................................................................................................... 73 3. Alaska ....................................................................................................... 84 4. Arizona..................................................................................................... 94 5. Arkansas......................................................................................................................................................... 106 6. California...................................................................................................................................................^ 117 7. Colorado......................................................................................................................................................... 143 8. Connecticut..................................................................................................................................................... 161 9. Delaware..........................................................................................................................^ 168 10. Florida...................................................................................................................................... 172 11. Georgia.............................................................................................................................................. 183 12. Hawaii............................................................................................................................................................ 196 13. Idaho...................................................................................................^ 203 14. Illinois..............................................^ 212 15. Indiana.............................................................................................................................................. 224 16. Iowa........................................................................................................................................... 233 17. Kansas............................................................................................................................... 241 18. Kentucky................................................................................................................................ 251 19. Louisiana................................................................................................................................................... 262 20. Maine........................................................................................................................... 271 21. Maryland and the District of Columbia........................................................................................................ 276 22. Massachusetts.......................................................................................................................................... 284 23. Michigan..................................................................................................... 292 24. Minnesota...................................................................................................................................... 302 25. Mississippi.............................................................................................................................................. 312 26. Missouri................................................................................................................... 323 27. Montana......................................................................................................................... 331 28. Nebraska................................................................................................................................... 350 29. Nevada........................................................................................................................... 356 30. New Hampshire........................................................................................................................................... 364 31. New Jersey..................................................................................................................................................... 367 32. New Mexico.................................................................................................. 376 33. NewYbrk.............................................................................................................. 387 34. North Carolina......................................................................................................... 402 35. North Dakota............................................................................................................................... 411 36. Ohio........................................................................................................ 418 37. Oklahoma............................................................................................................................ 426 38. Oregon.................................................................................................................................................... 434 39. Pennsylvania.................................................................................................................................................. 449 40. Puerto Rico................................................................................................... 464 41. Rhode Island............................................................................................................................... 468 42. South Carolina............................................................................................................................ 471 43. South Dakota...................................................................................................................... 476 44. Tennessee....................................................................................................................................................... 484 45. Texas.............................................................................................................. 498 46. Utah ...................... ....... ..... ........... ..... .. .. . .. .. .................... 513 47. Vermont........................................................................................................................................ 523 48. Wginia...................................................................................................... 528 X Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 CONTENTS Continued TABLES Continued 49. Washington.... 50. West Virginia. 51. Wisconsin...... 52. Wyoming....... 543 556 563 572 CONVERSION FACTORS, ABBREVIATIONS, AND VERTICAL DATUM Multiply By To obtain acre acre-foot (acre-ft) cubic foot per second (ft3/s) o 0 cubic foot per second per square mile [( ft /s)/ mi ] foot (ft) foot per hour (ft/hr) foot per second (ft/s) gallon (gal) inch (in.) inch per day (in/d) inch per hour (in/hr) inch per year (in/yr) mile (mi) mile per hour (mi/hr) square foot (ft2) square mile (mi2) yard (yd) 4,047 1,233 0.02832 0.01093 0.3048 0.3048 0.3048 3.785 25.4 25.4 25.4 25.4 1.609 1.609 0.9290 2.590 0.9144 square meter cubic meter cubic meter per second cubic meter per second per square kilometer meter meter per hour meter per second liter millimeter millimeter per day millimeter per hour millimeter per year kilometer kilometer per hour square meter square kilometer meter Temperature can be converted to degrees Celsius (°C) or degrees Fahrenheit (°F) by the equations: °C = 5/9 (°F - 32) °F = 9/5 (°C) + 32. Sea level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929 a geodetic datum derived from a general adjustment of the first-order level nets of the United States and Canada, for- merly called Sea Level Datum of 1929. Contents XI XII Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 GLOSSARY Although much of the terminology used in this report is widely understood, some terms have specialized meanings in hydrology or are unfamiliar outside of hydrologic usage. Most of the definitions given here are from Langbein and Iseri (1960), some with slight modifications, and explain the terms as they are generally used by hydrologists in the U.S. Geological Survey. Absorption. The entrance of water into the soil or rocks by all natural processes. It includes the infiltration of precipitation or snowmelt. Area-weighted rainfall. Method of converting point rainfall data into an average value for a certain area or basin. Bank. The margins of a channel. Banks are called right or left as viewed facing the direction of flow. Cubic feet per second. A unit expressing rates of dis- charge. One cubic foot per second is equal to the dis- charge of a stream of rectangular cross section, 1 foot wide and 1 foot deep, flowing water an average velocity of 1 foot per second. Current meter. An instrument for measuring the velocity of flowing water. The U.S. Geological Survey uses a rotating cup meter. Discharge. In its simplest concept, discharge means out- flow; therefore, the use of this term is not restricted as to course or location, and it can be applied to describe the flow of water from a pipe or from a drainage basin. If the discharge occurs in some course or channel, it is correct to speak of the discharge of a canal or of a river. Drainage area. The drainage area of a stream at a speci- fied location is that area, measured in a horizontal plane, that is enclosed by a drainage divide. Drainage basin. A part of the surface of the Earth that is occupied by a drainage system, which consists of a sur- face stream or a body of impounded surface water together with all tributary surface streams and bodies of impounded surface water. Flash flood. A sudden, violent flood, as after an intense rain. Flood. An overflow or inundation that comes from a river or other body of water (Barrows, 1948, p. 4) and causes or threatens damage. Any relatively high streamflow overtopping the natural or artificial banks in any reach of a stream (Leopold and Maddock, 1954, p. 249-251). Flood plain. The lowland that borders a river, usually dry but subject to flooding (Hoyt and Langbein, 1955, p. 12). Flood stage. The stage at which overflow of the natural banks of a stream begins to cause damage in the reach in which the elevation is measured. Hydraulic head. Difference in height between a point and the free water surface above or below. Isohyetal map. A map or chart showing lines that join points that receive the same amount of precipitation. Overland flow. The flow of rainwater or snowmelt over the land surface toward stream channels. Regulation. The artificial manipulation of the flow of a stream by the use of dams, gates, or canals to impede, release, or redirect the natural flow of water. Reservoir. A pond, lake, or basin, either natural or artifi- cial, for the storage, regulation, and control of water. Stage. The height of a water surface above an established datum plane (also gage height). Stage-discharge curve. A graph showing the relation between the gage height, usually plotted as ordinate, and the amount of water flowing (discharge) in a chan- nel, expressed as volume per unit of time, usually plot- ted as abscissa. Stage-discharge relation. The relation expressed by the stage-discharge curve. Streamflow. The discharge that occurs in a natural chan- nel. Although the term discharge can be applied to the flow of a canal, the word "streamflow" uniquely describes the discharge in a surface stream course. The term "streamflow" is more general than runoff, as streamflow may be applied to discharge whether or not it is affected by diversion or regulation. Streamflow-gaging station. A gaging station where a record of discharge of a stream is obtained. Surface runoff. That part of the runoff that travels over the soil surface to the nearest stream channel. It also is defined as that part of the runoff of a drainage basin that has not passed beneath the surface following pre- cipitation. Surface water. Water on the surface of the Earth. Water equivalent of snow. The amount of water that would be obtained if the snow should be completely melted. Water content may be merely the amount of liq- uid water in the snow at the time of observation (Wil- son, 1942, p. 153-154). Water year. In U.S. Geological Survey reports, water year is the 12-month period, October 1 through Sep- tember 30. The water year is designated by the year in which it ends. Thus, the year ending September 30, 1989, is called the "1989 water year." Glossary XIII XIV Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 ByC.A. Perry, B.N. Aldridge, and H.C. Ross Abstract This volume is a compilation of significant floods that occurred throughout the United States, Puerto Rico, and the Virgin Islands during the period from January 1, 1970, through Decem- ber 31,1989. A significant flood in this report refers to a maximum discharge (instantaneous or time averaged) that is in the top 5 percent of all the annual maximum discharges recorded or mea- sured at streamflow-gaging stations during their total period of record. Most of these floods are approximately equal or greater than the 20-year recurrence-interval flood (0.05 probability of occurrence in any 1 year) for that station. A summary of the most devastating floods according to amount of damage and lives lost is provided for each year for the period 1970 through 1989. Significant interstate floods are described also. For each year, a map is provided showing the States with the percentage of total streamflow-gaging stations having significant floods. A compilation of specific data for the signifi- cant floods is arranged State by State for each of the 50 United States and Puerto Rico. Each State compilation includes: (1) a description of the gen- eral hydroclimatology and conditions that pro- duce significant floods, (2) descriptions of climatic and basin characteristics that signifi- cantly affect maximum flows within the State, (3) tables of data that allow the reader to compare each significant flood during the period 1970 through 1989 with the maximum flood for the entire period of record at selected streamflow- gaging stations, and (4) State maps show the loca- tion of the streamflow-gaging stations. INTRODUCTION Maximum stream discharges for selected locations are compiled annually by the U.S. Geological Sur- vey's State and Puerto Rico offices. Each office pub- lishes this data along with other data, including daily flow, water-quality, and ground-water information, in the U.S. Geological Survey annual Water-Data Report series. The maximum discharges for each streamflow- gaging station are also placed in the Peak Flow File, which is maintained at each office's World Wide Web (www) computer site. However, publications were needed that compiled significant floods nationwide and provided a relative measure of the severity in a single publication. These publications became the National Flood Summary series of which this volume is a part. This Water-Supply Paper, in addition to pro- viding a list of floods for the period 1970 through 1989, provides a description of major or significant floods and provides some information on their cause and resulting costs, damage estimates, and reported loss of life. For this report, a significant flood refers to a maxi- mum discharge (instantaneous or time averaged) that is in the top 5 percent of all the annual maximum dis- charges recorded or measured at a streamflow-gaging station during its total period of record. If the period of record contains an unregulated period and a regulated period, the record is broken into two parts. The top 5-percent maximum discharges for each period were Introduction 1 determined and combined for that station. If the significant flood occurred during the period 1970 through 1989, that flood was included in this sum- mary. Most of these significant floods were approxi- mately equal to or greater than the 20-year recurrence interval (0.05 probability of occurrence in any 1 year) for that station. The listing includes the designation of whether a specific flood was unregulated or regulated. Innumerable combinations of variable meteoro- logic and physiographic factors produce floods of all degrees and severity. Some meteorologic factors that affect floods are the form, amount, duration, and inten- sity of precipitation; the amount of previous precipita- tion, which would affect the moisture absorption of the soil; the air temperature, which may cause frozen soil or may determine the rate of snowmelt; and the direc- tion of storm movement. The principal physiographic features of a drainage basin that determine floodflows are drainage area, elevation, character of soil, shape, slope, direction of slope, and vegetative or other land cover. With the exception of vegetative cover and soil preconditions, the physiographic features are fixed for any given natural drainage basin. The combination of the magnitude and intensity of meteorologic phenom- ena, the antecedent moisture conditions, and the effect of inherent physiographic features on runoff deter- mines the magnitude of a flood. Flood damages frequently are difficult to assess. Dollar amounts given in this report should be used as a general indication of flood losses rather than as defi- nite values. Even if detailed surveys and estimates have been made, there is little consistency among methods used and types of losses included. Some esti- mates may exclude certain locations (such as moun- tainous areas) or types of loss (either insured or uninsured) or type of property (either private or pub- lic). Some estimates include traffic interruptions and flood-mitigation costs; others include strictly physical damage. Estimates may be based on replacement costs or on depreciated values. For floods not described in detailed published reports, the only damage estimates available usually are the preliminary figures contained in newspapers, National Oceanic and Atmospheric Administration (NOAA) climatological data, or other sources published shortly after the flood. A statement that a disaster declaration was issued indicates that the damage was severe and that financial aid to victims was authorized by the governmental entity making the declaration. Some of the flood descriptions in this volume give the amount of rainfall and duration of the storm associated with the flooding. Recurrence intervals for these storms may be determined from a rainfall- frequency atlas of the United States (Hershfield, 1961) or from a simplified set of equal-rainfall maps and charts contained in a report by Rostvedt (1965). Continuing investigation of surface-water resources within the United States is performed by the U.S. Geological Survey in cooperation with State agencies, the U.S. Army Corps of Engineers, the Bureau of Reclamation (U.S. Department of the Inte- rior), and other Federal or local agencies. The National Weather Service, in addition to collecting and compil- ing data on meteorological phenomena, also collect data on stream stages in some areas. Previous Flood Summary Reports During the 1950's and 1960's, the U.S. Geological Survey summarized floods of each year in an annual series of Water-Supply Papers entitled, "Summary of Floods In the United States." A summary was pub- lished for each calendar year from 1950 through 1969. Water-Supply Paper 1137-1, the first in the series (U.S. Geological Survey, 1954), states the purpose of the series as being: "To assemble in a single volume informa- tion relating to all known severe floods in the United States, whether local or of wide areal extent. For floods that are described in... other publications of the Geological Survey, or in reports by other Federal and State agencies, only very brief mention including references to the reports containing detailed descriptions, will be given here. Local floods for which no individual reports have been prepared are briefly described." In the first volume of that Water-Supply Paper series, each flood was described in a maximum of three or four paragraphs. Later volumes contained longer articles including maps. The series was discon- tinued after the 1969 volume; however, in 1987 a pro- gram was begun to prepare and publish summaries for 1970 and succeeding years. Two flood summary publi- cations (one for the calendar years 1990 and for 1991 and one for January 1992 through September 1993) were published with the longer article format. Water- Supply Papers 2474 and 2499 cover the periods 1990 and 1991 and January 1992 through September 1993, respectively. Much of the following introductory 2 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 material is paraphrased from these reports (Jordan and Combs, 1997; Perry and Combs, 1998) and from the published report describing floods for 1968 (Rostvedt, 1972). This volume contains flood summaries and flood statistics for the time period from January 1, 1970, through December 31, 1989, for the 50 United States, Puerto Rico, and the Virgin Islands. Determination of Maximum Stages and Discharges The usual method of determining stream dis- charges at a streamflow-gaging station is the applica- tion of a stage-discharge relation to a known stage. This relation usually is defined by current-meter mea- surements made through as wide a range of stage as possible (fig. 1). If the maximum discharge exceeds the range of the current-meter measurements, short extensions may be made to a graph of the stage- discharge relation by logarithmic extrapolation, by velocity-area studies, or by the use of other measur- able hydraulic factors (Kennedy, 1983). Maximum discharges that are greatly above the range of the defined stage-discharge relation at gaging stations and maximum discharges at miscellaneous sites that have no developed stage-discharge relation generally are determined by various types of indirect measurements. In addition, adverse conditions often make it impossible to obtain current-meter measurements at some gaging stations during signifi- cant flooding. Maximum discharges at these stations are determined after the floods have subsided, by indi- rect methods, which involve determination of water- surface elevations from high-water marks, surveying cross sections, and computing discharge from hydrau- lic equations rather than from direct measurement of stream velocity by use of a current meter. Indirect methods are described by Dalrymple and Benson (1967), Hulsing (1967), Matthai (1967), Bodhaine (1968), and Benson and Dalrymple (1987). The accuracy of indirect measurements depends upon onsite conditions and the experience of person- nel who select the indirect measurement sites and make the surveys, and generally is poorer than for cur- rent-meter measurements. The indirect measurements used in determining maximum discharges for floods are not identified as such in this volume. Information as to the source and quality of discharge data in this volume can be obtained from the U.S. Geological Sur- 40 30 20 10 56 I I I J_____I I 4 6 8 10 20 40 60 80 100 Discharge, in thousands of cubic feet per second EXPLANATION 57. Current-meter measurement and number Relation established by measurements Extension of relation to observed maximum stage Figure 1 . Example of a stage-discharge relation and upward extension. vey office in the State or territory in which the particu- lar streamflow-gaging station is located. Explanation of Flood Information In this volume, first a summary of the most devas- tating floods according to the number of lives lost and the amount of damage is provided for each year for the period 1970-89. Significant interstate floods are described also. A map is provided for each year show- ing the percentage of total streamflow-gaging stations having significant floods in each State or territory. In addition, a list of selected references is provided for floods occurring that year. Next, floods in individual States or territories are examined. A brief narrative of State or territory hydro- climatology is followed by selected significant flood descriptions. A map showing tocatioh of all stream- flow-gaging stations where there was a significant flood of an approximately 20-year recurrence interval or greater during 1970 through 1989 is provided. Some of these maps have physiographic designations that are described by Fenneman (1946). Finally, spe- cific flood data for each significant flood, including maximum stages and discharges for the period of Introduction 0)i B> 0) (5* Table 1. Example of summary table presented in State or territory compilations - 7 a g [mi , square miles; ft, feet above an arbitrary datum; fr/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. g- Geological Survey data. Other data from U.S. Geological Survey reports or data bases] 5 Maximum stage and discharge for J. period of record through 1 992, 1 993, 2. 1994, or 1995 Significant floods during 1970-89 <D ,. .. , .... . - a ST Total Period jo Station drainage of Water T? number Station name area (mi2) record year <o ° 05551212 Hypothetical Creek near Town, ST 21.0 1961-90 1961 8» 05555000 Hypothetical River at City, ST 1,212 1939, 1986 a 1955-94 f 06930030 Hypo River near Metropolis, ST 3,333 1919-94 1943 s?° = Regulated during flood: N, no; Y, yes. £. a JO <o o I 10 i <o Regu- Recur- Dis- Date lated rence Stage charge (month/ Stage Discharge during interval (ft) (ft3/s) day/year) (ft) (ft3/s) floodT (years) 13.1 -- 02/02/72 12.22 4,200 N 25 11/30/88 12.67 5,500 25-50 21.21 82,800 09/12/86 21.21 82,800 N >100 33.33 -- 12/23/76 25.55 33,000 Y 10-25 99,900 record for those streams, are summarized in tables. The flood data for each State or territory are compiled in downstream order. In an example of the summary table (table 1), the first two columns identify the streamflow-gaging sta- tion, which may be a continuous-record streamflow- gaging station, a partial-record station, or another site at which data have been obtained. The first column gives the U.S. Geological Survey permanent station number (downstream-order number). The second col- umn gives the name of the streamflow-gaging station. Total drainage area in the summary table is the total area, as measured on a flat projection map, that constitutes the stream drainage basin (enclosed by the divide). The actual drainage area contributing to runoff may be smaller than the total drainage area if the total area includes areas of extremely rapid infiltration rates that do not produce surface runoff or includes closed subbasins within the larger basin that do not have sur- face outlets (noncontributing areas). The column headed "Period of record" shows the calendar years for which the stage or discharge shown in the sixth and seventh columns are known to be a maximum. For most streamflow-gaging stations, this period corresponds to the period of systematic collec- tion of streamflow data. For other stations, written or oral history may indicate that a flood stage was the highest since people have observed the stream or was the highest since some known date. For some stations, two or more periods are given. The use of two periods separated by a comma indicates a break in the period of record. Maximum stages or discharges during the intervening period are unknown. The fifth column shows the water year in which the maximum stage and discharge for the indicated period occurred. The sixth and seventh columns show the stage and discharge of that maximum. Separate listings are made when maximum stage and maximum discharge did not occur concurrently. The last five columns present data for the maxi- mum stages and discharges from January 1,1970, through December 31,1989. The data include the date on which the maximum occurred, maximum stage, and maximum discharge, whether the stream was reg- ulated at the time of the flood, and, where available, the recurrence interval (RI) of the discharge. Regula- tion can have a substantial effect on discharge mea- surements, as in the case of a flood-control reservoir a short distance upstream or a flood bypass around the gaging station, or a less substantial effect, as in the case of a reservoir controlling a small part of the total drainage area. The probability of a given discharge being equaled or exceeded in any given year frequently is used as an indication of a flood's relative magnitude and for com- parison with floods at other gaging stations. The rela- tive flood magnitude also can be expressed in terms of the percentage chance of occurrence, which is 100 times the flood probability. A third way of expressing the relative magnitude is in terms of recur- rence interval, which is the reciprocal of the flood probability. A discharge that has a probability of 0.10 will be equaled or exceeded on average (over a long period of time) of once in 10 years, has a 10-per- cent chance of occurring in any given year, has a recurrence interval of 10 years, and is termed a "10- year flood." A 100-year flood has a probability of 0.01, will be equaled or exceeded on average (over a long period of time) of once in 100 years, has a 1- percent chance of occurring in any given year, and has a recurrence interval of 100 years. Because recurrence interval is used most commonly by Federal agencies (for example, in the context of flood insurance), it is used in this volume even though percentage chance avoids the unintended connotations of regularity of occurrence that accompany the term "recurrence interval." Equivalence of flood probability and percentage- chance values to selected recurrence-interval values is as follows: Probability 0.50 .20 .10 .04 .02 .01 Percentage chance 50 20 10 4 2 1 Recurrence interval (years) 2 5 10 25 50 100 In addition to probability or percentage chance of a given magnitude of discharge occurring in any 1 year, Introduction the probability or percentage chance of occurrence during a given period of consecutive years also can be calculated. Results of such calculations for selected combinations of recurrence interval and length of period are as follows: [*, greater than a 99.9- but less than a 100-percent chance] Recur- rence inter- - val (years) 2 10 50 100 Percentage chance for indicated time period, in years 5 97 41 10 5 10 99.9 65 18 10 50 * 99.5 64 39 100 * * 87 63 500 * * * 99.3 Recurrence intervals computed for any given flood may differ from gaging station to gaging station because of nonuniform distribution of runoff and uncertainty in the computed recurrence values. Opera- tional patterns for reservoirs generally are not defined adequately to permit recurrence intervals to be com- puted for maximum discharges on regulated streams. Another method of indicating a flood's relative magnitude is by comparison of its maximum discharge and the stream's drainage area with values on a regional "envelope curve." A flood-envelope curve is one drawn on a graph in which maximum known dis- charges are plotted against the drainage area of each streamflow-gaging station (fig. 2). The envelope curve is a smooth curve drawn to equal or exceed all the plotted discharges in relation to the drainage areas. Envelope curves are given for 17 regions of the conter- minous United States in Crippen and Bue (1977). This method is better than the formerly used calculation of "unit discharge" (division of the discharge by the drainage area) because unit discharges for greatly dif- ferent sizes of drainage area are not comparable. Large unit discharges are common for small drainage areas but are usually rare for large drainage areas. SELECTED REFERENCES Barrows, H.K., 1948, Floods, their hydrology and control: New York, McGraw-Hill Book Co., 432 p. Benson, M.A., and Dalrymple, Tate, 1987, General field and office procedures for indirect measurements: U.S. Geo- ,000,000 500,000 200,000 100,000 50,000 20,000 10,000 5,000 2,000 1,000 500 200 100J: i i i i i i i \ r i \ i i Envelope curve CA18 CA4 CA9 Data point and site number Number corresponds to site number given in table 1 of Crippen and Bue (1977) I__I o d in «- o o o o in o o f CM O O O O O o o o o o in o o o o r-v CM in o Drainage area, in square miles Figure 2. Maximum discharge versus drainage area and envelope curve for a region (modified from Crippen and Bue, 1977, p. 15). logical Survey Techniques of Water-Resources Investi- gations, book 3, chap. Al, 29 p. Bodhaine, G.L., 1968, Measurement of peak discharge at culverts by indirect methods: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. A3, 60 p. Crippen, J.R., and Bue, C.D., 1977, Maximum floodflows in the conterminous United States: U.S. Geological Sur- vey Water-Supply Paper 1887, 52 p. Dalrymple, Tate, and Benson, M.A., 1967, Measurement of peak discharge by slope-area method: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. A2, 12 p. Fenneman, N.M., 1946, Physical divisions of the United States: Washington, D.C., U.S. Geological Survey, map, scale 1:7,000,000. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Hoyt, W.G., and Langbein, W.B., 1955, Floods: Princeton, N.J., Princeton University Press, 469 p. Hulsing, Harry, 1967, Measurement of peak discharge at dams by indirect methods: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. A5, 29 p. Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites, 1993: U.S. Geological Survey Water-Resources Investigations Report 94^002, 196 p. 6 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Jordan, P.R., and Combs, L.J., eds., 1997, Summary of floods in the United States during 1990 and 1991: U.S. Geological Survey Water-Supply Paper 2474, 257 p. Kennedy, E.J., 1983, Computation of continuous records of streamflow: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. A13, 53 p. Langbein, W.B., and Iseri, K.T., 1960, General introduction and hydrologic definitions, in Manual of hydrology, part 1, General surface-water techniques: U.S. Geolog- ical Survey Water-Supply Paper 1541-A, 29 p. Leopold, L.B., and Maddock, Thomas, Jr., 1954, The flood control controversy: New York, Ronald Press Co., 278 p. Matthai, H.F., 1967, Measurement of peak discharge at width contractions by indirect methods: U.S. Geologi- cal Survey Techniques of Water-Resources Investiga- tions, book 3, chap. A4, 44 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Perry, C.A., and Combs, L.J., eds., 1998, Summary of floods in the United States, January 1992 through Sep- tember 1993: U.S. Geological Survey Water-Supply Paper 2499, 286 p. Rostvedt, J.O., 1965, Summary of floods in the United States during 1960: U.S. Geological Survey Water- Supply Paper 1790-B, 147 p. 1972, Summary of floods in the United States during 1968: U.S. Geological Survey Water-Supply Paper 1970-B, 73 p. U.S. Geological Survey, 1954, Summary of floods in the United States during 1950: U.S. Geological Survey Water-Supply Paper 1137-1, p. 957-991. Wilson, W.T., 1942, Melting characteristics of snow and its contribution to runoff, in June 30-July 2, 1941, Hydrology Conference, Proceedings: University Park, Pennsylvania State College, School of Engineering Technical Bulletin 27, p. 153-165. Selected References SUMMARY OF SIGNIFICANT FLOODS, 1970 THROUGH 1989, BY YEAR This section includes brief descriptions of selected significant interstate and intra- state floods in yearly accounts. Floods described in this section were those with exces- sive loss of life, excessive damage, extreme discharge or gage height, or those regional in extent. References are provided for these as well as other selected significant floods that occurred during the year. Figures 3-23 in this section depict widespread regional flooding by giving the percentage of streamflow-gaging stations in each State or terri- tory recording greater than the approximate 20-year recurrence-interval flooding during the calendar year. 1970 Excessive rain falling on snow during January and February was responsible for flows in the Sacramento River in California that were the highest since construction of Shasta Dam (fig. 3). The death toll was 18, and there was $38 million in damages (Paul- son and others, 1991). There were also record maximum discharges in the lake basins of northeastern California. Additional flooding extended from northeastern California to northeastern Oregon. Extensive flooding occurred in early March from northeastern Louisiana across north-central Mississippi and again later in the month from Mississippi across Alabama and into southern Georgia. Highest recurrence-interval floods (50 year) occurred on streams in southwestern Georgia. The Red River of the North in North Dakota and Minnesota was above flood stage from April 10 to May 10 as a result of melting of a deep winter snowpack and recurring precipitation. Record stages also occurred on the Des Lacs River at Foxholm (station 05116500, table 35), in northwestern North Dakota. Excessive rain and flood- ing from May 8 to 14 resulted in 21 counties in North Dakota and 11 counties in Min- nesota being designated as disaster areas. A greater than 50-year recurrence-interval flood on the Deep River at Deep River, Iowa (station 05455230, table 16), occurred on May 14. Flash floods in extreme northwest Iowa on May 28 caused extensive damage. During September 4-6, the "Four Corners" area of Arizona, Colorado, New Mex- ico, and Utah was subjected to monsoon-type thunderstorms that created flash floods over a large area. There were 23 deaths and $10 million in damages (Roeske and others, 1978). During October 5-10, the eastern two-thirds of Puerto Rico was subjected to exces- sive rainfall from a stalled tropical storm. As much as 38.4 in. of rain fell in Puerto Rico over a 6-day span (Environmental Sciences Services Administration, 1970). Eighteen persons lost their lives as a result of flooding, and damages were estimated at $68 mil- lion (Paulson and others, 1991). Selected References for 1970 Aldridge, B.N., 1972, Investigation of floods from small drainage basins in Arizona, in Proceed- ings of the 21st annual conference on roads and streets: Tucson University of Arizona, Ari- zona Transportation and Traffic Institute, p. 107-126. Alien, H.E., and Noehre, A.W., 1973a, Floods in Harvard Quadrangle, northeastern Illinois: U.S. Geological Survey Hydrologic Investigations Atlas HA-496, 1 sheet, scale 1:24,000. 8 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 760° 150° 500 MILES _i 500 KILOMETERS Shasta Dam 40°. Sacramento River- Pacific Ocean Atlantic Ocean 500 KILOMETERS Gulf of Mexico EXPLANATION -Virgin Islands 0 20 MILES 020 KILOMETERS Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 3. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1970. Summary of Significant Floods, 1970 9 ___1973b, Floods in Marengo North Quadrangle, north- eastern Illinois: U.S. Geological Survey Hydrologic Investigations Atlas HA-495, 1 sheet, scale 1:24,000. Causseaux, K.W., 1971, Flood of March 19-20, 1970, met- ropolitan Birmingham and Jefferson County, Alabama: Geological Survey of Alabama, Atlas Series 2, 10 pis. Environmental Sciences Services Administration (ESSA), 1970, Climatological data (by State): Ashville, N.C., National Climatic Data Center, (various months). Grant, R.S., and Duerk, M.D., 1973, Floods in Capron Quadrangle, northeastern Illinois: U.S. Geological Sur- vey Hydrologic Investigations Atlas HA-498, 1 sheet, scale 1:24,000. Haire, W.J., 197 la, Floods in Patillas-Maunabo area, Puerto Rico: U.S. Geological Survey Hydrolologic Investiga- tions Atlas HA-445, 1 sheet, scale 1:20,000. 197Ib, Floods in Guayama area, Puerto Rico: U.S. Geological Survey Hydrolologic Investigations Atlas HA-446, 1 sheet, scale 1:20,000. 197 Ic, Floods in Salinas area, Puerto Rico: U.S. Geological Survey Hydrolologic Investigations Atlas HA-447, 1 sheet, scale 1:20,000. 197Id, Floods in Santa Isabel area, Puerto Rico: U.S. Geological Survey Hydrologic Investigations Atlas HA-448, 1 sheet, scale 1:20,000. 1972, Flood of October 5-10, 1970, in Puerto Rico: U.S. Geological Survey Water-Resources Bulletin 12, 38 p. 197 5 a, Floods in the Fajardo-Luquillo area, north- eastern Puerto Rico: U.S. Geological Survey Hydro- logic Investigations Atlas HA-545, 1 sheet, scale 1:20,000. 1975b, Floods in the Carolina-Rio Grande area, northeastern Puerto Rico: U.S. Geological Survey Hydrologic Investigations Atlas HA-533, 1 sheet, scale 1:20,000. 1978, Floods in the Naguabo area, eastern Puerto Rico: U.S. Geological Survey Hydrologic Investiga- tions Atlas HA-584, 1 sheet, scale 1:20,000. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Johnson, K.G., and Carrasquillo, Ramon, 1982, Floods of October 9, 1970, and September 16, 1975, at Jayuya, Puerto Rico: U.S. Geological Survey Open-File Report 81-346, 15 p. Kuehnast, E.L., Baker, D.G., and Zandlo, J.A., 1988, Six- teen year study of Minnesota flash floods: Minnesota Department of Natural Resources, Division of Waters, State Climatology Office and University of Minnesota Soil Science Department, 72 p. Mycyk, R.T., and Grant, R.S., 1972, Floods in the Riley Quadrangle, northeastern Illinois: U.S. Geological Sur- vey Hydrologic Investigations Atlas HA-464, 1 sheet, scale: 1:24,000. 1973, Floods in Garden Prairie Quadrangle, north- eastern Illinois: U.S. Geological Survey Hydrologic Investigations Atlas HA-497, 1 sheet, scale 1:24,000. National Oceanic and Atmospheric Administration (NOAA), 1971, Arizona floods of September 5 and 6, 1970: Natural Disaster Survey Report 70-2, 39 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Robinson, F.L., 1973, Floods in New York 1970: New York State Department of Environmental Conservation Report of Investigation R-14, 20 p. Roeske, R.H., Cooley, M.E., and Aldridge, B.N., 1978, Floods of September 1970 in Arizona, Utah, Colorado, and New Mexico: U.S. Geological Survey Water- Supply Paper 2052, 135 p. Tate, C.H., 1973, Floods of the 1970 and 1971 water years in Mississippi: Mississippi Board of Water Commis- sioners Bulletin 73-2, 20 p. Thorud, D.B., and Folliott, P.E., 1973, A comprehensive analysis of a major storm and associated flooding in Arizona: Tuscon, University of Arizona Agricultural Experimental Station Technical Bulletin 202, 30 p. U.S. Army Corps of Engineers, 1970a, After action report, Souris River Basin, floods of April 1970: St. Paul Dis- trict, Minnesota, 28 p. 1970b, Floods of 1970 in the Kansas City District: Kansas City District, Missouri, 23 p., 1 pi. 197la, Office report on the September 1970 floods, upper Colorado River Basin, Four Corners Area, Ari- zona, Colorado, New Mexico, and Utah: Sacramento District, California, 25 p. 197 Ib, Report of flood of 9-12 August, 1970, Yad- kin River, North Carolina: Charleston District, South Carolina, 22 p. 197 Ic, Report on Hurricane Celia, 30 July-5 August, 1970: Galveston District, Texas, 13 p. 197Id, Report on the January 1970 flood, Sacra- mento River Basin, California: Sacramento District, California, 58 p., 6 pis. Weiss, L.A., 1991, Connecticut floods and droughts, in Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, National water summary, 1988-89 Hydrologic events and floods and droughts, U.S. Geological Survey Water-Supply Paper 2375, p. 215-219. 10 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1971 The first significant flood of 1971 occurred in February across Nebraska, Iowa, Illi- nois, and Wisconsin (fig. 4). Significant flooding occurred on streams in eastern Nebraska, and some discharges were considered maximum-of-record floods. Ice jams caused flooding on the Rock River in northwestern Illinois on February 24. Spring rains caused extended flooding in the Southeastern States during March. Record floods occurred in Georgia on the Ocmulgee River. Many streams were above flood stage throughout March. Snowmelt caused flooding in Utah, Idaho, and Wyoming during May and June. Significant flooding occurred in the Green River Basin in Wyoming. The discharge on the Bear River near Smithfield, Utah (station 10102250, table 46), was considered a 75-year recurrence-interval flood. Discharges having recurrence intervals of 25 to 100 years were recorded on the North Platte River in Nebraska. The floods occurred in early June as a result of moun- tain snowmelt upstream in Wyoming. Excessive rainfall in the basin added to the inten- sity of the floods. Significant flooding occurred in southern Pennsylvania, eastern Ohio, and northern West Virginia during June and July. One of the most damaging thunderstorms in the last 50 years struck the Baltimore, Maryland, area on August 1. Streamflow-gaging stations in the area recorded discharges with recurrence intervals of 100 years. Fourteen deaths and $6.5 million in damages resulted from the floods (Paulson and others, 1991). Tropical Storm Doria moved along the eastern seaboard from North Carolina to Maine late in August. The resultant storm system caused rain over North Carolina for the next 2 weeks. The rains eventually spread over the entire East Coast reaching into Maine. Record floods occurred on several small streams in New Jersey and southeast- ern Pennsylvania. Extended flooding occurred from September until October in Texas, Louisiana, and Oklahoma. Several storms caused flooding in Oklahoma in early September. Hurri- canes Edith and Fern caused floods in Louisiana in September and October. Rivers stayed above flood stage into November. Significant flooding occurred in western Arkansas and extreme southeastern Okla- homa on December 9-10. Damages totalled as much as $16 million (Paulson and oth- ers, 1991). The discharge on the Trinity River near Crandall, Texas, was the second highest since 1949. Selected References for 1971 Aldridge, B.N., 1972, Investigations of floods from small drainage basins in Arizona, in 21st Annual Arizona Conference on Roads and Streets: Tuscon, University of Arizona, Arizona Transportation and Traffic Institute, Proceedings, p. 107-126. 1978, Unusual hydraulic phenomena of flash floods in Arizona: American Meteorologi- cal Society, Hydrometeorological Aspects, p. 117-120. Carmody, Thomas, 1980, A critical examination of the largest floods in Arizona a study to advance the methodology of assessing the vulnerability of bridges to floods for the Arizona Department of Transportation: The Engineering Experiment Station, College of Engineer- ing, 52 p. Carpenter, D.H., 1974, Floods of August and September 1971 in Maryland and Delaware: U.S. Geological Survey Open-File Report 74-1015, 35 p. Summary of Significant Floods, 1971 11 '60° 150° 0 500 MILES _j 0 500 KILOMETERS Pacific Ocean If -K «' \ .t > MT i;K, CANADA ' NV / '.^Btoerf" \ / ur -; CA \ / I CO \ r::M:;: ' ::/ xx Atlantic Ocean MEXICO -Virgin Islands EXPLANATION stations in each State Percentage of streamflow-gaging stations in each or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 4. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1971. 12 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Eychaner, J.H., 1984, Estimation of magnitude and fre- quency of floods in Pima County, Arizona, with com- parisons of alternative methods: U.S. Geological Survey Water-Resources Investigations Report 84-4142, 69 p. Gilstrap, R.C., 1973, Floods of December 1971 in western Arkansas: Arkansas Geological Commission Report Number 8, 26 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. House, P.K., and Pearthree, PR., 1994, A geomorphic and hydraulic evaluation of an extraordinary flood dis- charge estimate Bronco Creek, Arizona: Arizona Geological Survey Open-File Report 94-19, 21 p. Kuehnest, E.L., Baker, D.G., and Zandlo, J.A., 1988, Six- teen-year study of Minnesota flash floods: Minnesota Department of Natural Resources, Division of Waters, State Climatology Office and University of Minnesota Soil Science Department, 72 p. Lamke, R.D., 1972, Floods of the summer of 1971 in south- central Alaska: U.S. Geological Survey Open-File Report 72-215, 88 p. National Oceanic and Atmospheric Administration (NOAA), 1971, Climatological data (by State); Ash- ville, N.C., National Climatic Data Center, (various months). 1972, North Atlantic tropical cyclones: National Weather Service, Climatological Data, p. 746-748. Page, L.V., and Shaw, L.C., 1973, Flood of September 1971 in southeastern Pennsylvania: U.S. Geological Survey Open-File Report 73-217, 33 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Stankowski, S.J., 1972, Floods of August and Septem- ber 1971 in New Jersey: New Jersey Department of Environmental Protection, Division of Water Resources Special Report 37, 350 p. Tate, C.H., 1973, Floods of the 1970 and 1971 water years in Mississippi: Mississippi State Board of Water Com- missioners Bulletin 73-2, 20 p. Thomas, W.D., Jr., and Corley, R.K., 1973, Floods of 1971 and 1972 in Glover Creek and Little River in south- eastern Oklahoma: U.S. Geological Survey Water- Resources Investigations 5-73, 2 sheets. U.S. Army Corps of Engineers, 197 la, Post flood report, floods of January 27-28, 1971, Islands of Oahu, Maui, and Hawaii: Pacific Ocean Division, State of Hawaii, Department of Land and Natural Resources C31, 28 p. 1971b, Report of the flood of March 1971, Lumber River, North Carolina: Charleston District, South Caro- lina, 9 p. 197 Ic, After action report, spring floods, upper Mis- sissippi River: Rock Island District, Illinois, 29 p. 197Id, Hurricane Fern, September 13, 1971, post flood report: Galveston District, Texas, 21 p. 1972a, After action report, operation foresight, 1971 spring floods: St. Paul District, Minnesota, 26 p. 1972b, Office report, May-June 1971 snowmelt floods, Bear River Basin, Idaho, Utah, Wyoming, and Green River Basin, Wyoming: Sacramento District, California, 23 p. 1975, The flood of August and September 1971 (Hurricane Doria): New York District, 225 p. 1977, Flood plain information study for Rock River, Illinois: Rock Island District, Illinois, 52 p. Summary of Significant Floods, 1971 13 1972 The first significant floods of 1972 occurred in the Pacific Northwest. Flooding was persistent in the region as many streams were above flood stage from January until March. Flooding extended from central Washington to northern California but was most severe in western Oregon (fig. 5). The Nehalem and Wilson Rivers in Oregon had discharges that were maximums of record. Three counties in west-central Washington were declared Federal disaster areas as a result of the February floods. The Buffalo Creek flash flood, one of the worst human-induced disasters in history, occurred February 26 in West Virginia. A makeshift dam on Buffalo Creek failed dur- ing excessive rains. The rushing waters from the dam failure swept away houses and cars. The flood caused 125 fatalities and $100 million in damages (Paulson and others, 1991). One of the earliest ice breakups in history in North and South Dakota contributed to flooding along the Little Missouri River from snowmelt and ice jams. The U.S. Geolog- ical Survey streamflow-gaging station on the Little Missouri River at Medora, North Dakota (station 06336000, table 35), recorded a discharge with a 25-year recurrence interval. The most devastating local flood in South Dakota's history occurred in Rapid City, South Dakota, on June 10, 1972. An almost stationary group of thunderstorms formed over the eastern Black Hills and produced rainfall amounts of 15 in. in 6 hours north- west of Rapid City (National Oceanic and Atmospheric Administration, 1972). Rapid Creek at Rapid City (station 06414000, table 43) had a maximum discharge of 50,000 ft3/s, which was more than seven times greater than the discharge having a 100-year recurrence interval. The flood resulted in 237 deaths and caused $160 million in damages (Paulson and others, 1991). During June 20 through 25, 1972, Hurricane Agnes traveled over the eastern United States with an unusually extended trajectory, and its combination with an extratropical system produced some of the worst flooding in the area's history. The storms produced torrential rains and significant flooding, particularly in Pennsylvania, New York, Mary- land, and Virginia. Hurricane Agnes was one of the most destructive hurricanes in his- tory, claiming 117 lives and causing $3.1 billion in damages (Bailey and others, 1975). On July 21, 1972, the largest 24-hour rainfall recorded in Minnesota resulted in major flash flooding in central Minnesota (Paulson and others, 1991). Thirteen counties were declared disaster areas. On August 27, locally intense thunderstorms produced excessive rainfall over cen- tral Utah. The discharge of Vernon Creek at Vernon, Utah (station 10172700, table 46), was greater than the 100-year recurrence interval for the area (Paulson and others, 1991). Three flash floods in 1972 occurred in Duluth, Minnesota. The largest flash flood hit the area on September 20 and caused two deaths and $1 million in damages (Paulson and others, 1991). Widespread flooding occurred from October 5 to 10 in Virginia and North Carolina. The Meherrin and Nottoway Rivers in southeastern Virginia and northeastern North Carolina had discharges that were near record stages. 14 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 '60° 150° 0 | t t | 500 MILES 0 500 KILOMETERS Pacific Ocean Atlantic Ocean 500 KILOMETERS Gu/f of Mexico Puerto Rico EXPLANATION 0 20 MILES hV 020 KILOMETERS Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 5. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1972. Summary of Significant Floods, 1972 15 Selected References for 1972 Bailey, J.F., Patterson, J.L., and Paulhus, J.L.H., 1975, Hur- ricane Agnes rainfall and floods, June-July 1972: U.S. Geological Survey Professional Paper 924,403 p. Boone, C.F., 1972, The Richmond flood: Lubbock, Texas, C.F. Boone Publ. Co., 63 p. Burford, J.B., Delashmutt, J.L., and Roberts, R.T., 1981, Hydrologic data for experimental agricultural water- sheds in the United States, 1972: U.S. Department of Agriculture Miscellaneous Publication 1412, 433 p. Bryant, W.C., 1972, Report on Bakersfield storm, June 7, 1972: Bakersfield, California, Kern County Water Agency, 39 p. Carter, C.H., 1973, The November 1972 storm on Lake Erie: State of Ohio, Department of Natural Resources, Division of Geological Survey Information Circular 39, 12 p. Colwick, A.B., McGill, H.N., and Erichsen, F.P., 1973, Severe floods at New Braunfels, Texas, May 1972: U.S. Soil Conservation Service Paper 73-206, 29 p. Erikson, K.T., 1976, Everything in its path, destruction of community in the Buffalo Creek Flood: New York, Simon and Schuster, 284 p. Darmer, K.I., 1973, Flood of June 1972 at Corning, New York: U.S. Geological Survey Hydrologic Investiga- tions Atlas HA-519, 1 sheet, scale 1:18,000. Darmer, K.I., and Wagner, L.A., 1973, Flood of June 1972 at Elmira, New York: U.S. Geological Survey Hydro- logic Investigations Atlas HA-518, 1 sheet, scale 1:18,000. Davies, W.E., Bailey, J.F., and Kelly, D.B., 1972, West Vir- ginia's Buffalo Creek flood a study of the hydrology and engineering geology: U.S. Geological Survey Cir- cular 667, 32 p. DeAngelis, R.M., 1972a, Hurricane Agnes June 14-23, 1972: National Oceanic and Atmosphic Admini- stration, Climatological Data, National Summary, June 1972, p. 312-317. 1972b, North Atlantic tropical cyclones, 1972: National Oceanic and Atmospheric Administration, Climatological Data, National Summary, p. 62-69. DeAngelis, R.M., and Hodge, W.T., 1972, Preliminary cli- matic data report, Hurricane Agnes, June 14-23,1972: National Oceanic and Atmospheric Administration Technical Memorandum EDS NCC-1, 62 p. Dennis, S.A., Schlensener, R.A., Hirsch, J.H., and Kosciel- ski, A., 1973, Meteorology of the Black Hills flood of 1972: South Dakota School of Mines and Technology, Institute of Atmospheric Science Report 73-4, 41 p. Elmira Star Gazette, 1972, The great flood of 1972: Elmira, New York, Twin Tiers Star Gazetta, 63 p. Flippo, H.N., Jr., 1975, Flood of June 22-23, 1972, at Lock Haven, Pennsylvania: U.S. Geological Survey Hydrologic Investigations Atlas HA-541, 1 sheet, scale 1:12,000. Flippo, H.N., Jr., and Lenfest, L.W., Jr., 1973, Flood of June 1972 in Wilkes-Barre area, Pennsylvania: U.S. Geological Survey Hydrologic Investigations Atlas HA-523, 1 sheet, scale 1:24,000. Greenhow, W.H., 1972, Flood, The Southern Tiers [New York], June 1972, disaster, a pictorial review: Hornell, New York, W.H. Greehow, 81 p. Heinitz, A.J., 1973, Flood of August 2, 1972, in Little Maquokata River Basin, Dubuque County, Iowa: U.S. Geological Survey Open-File Report 73-107, 31 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Hjalmarson, H.W, 1990, Flood of October 1983 and history of flooding along the San Francisco River, Clifton, Ari- zona: U.S. Geological Survey Water-Resources Inves- tigations Report 85-4225-B, 42 p. Kuehnast, E.L., Baker, D.G., and Zandlo, J.A., 1988, Six- teen year study of Minnesota flash floods: Minnesota Department of Natural Resources, Division of Waters, State Climatology Office and University of Minnesota Soil Science Department, 72 p. Larimer, O.J., 1973, Flood of June 9-10, 1972, at Rapid City, South Dakota: U.S. Geological Survey Hydro- logic Investigations Atlas HA-511, 1 sheet, scale 1:18,000. Maddox, R.A., Hoxict, L.R., Chappell, C.F., and Caracena, F., 1977, Identifying meteorological potential for flash floods along the East Slopes of the Rocky Mountains, in 10th Conference on Severe Local Storms, Octo- ber 18-21, 1977, Omaha, Nebraska: American Meteo- rological Society, p. 364-372. Miller, E.M., and Walker, P.N., 1973, Flood of Octo- ber 1972 at Petersburg and Colonial Heights, Virginia: U.S. Geological Survey Hydrologic Investigations Atlas HA-505, 1 sheet, scale 1:24,000. Mussari, A.J. 1974, Appointment with disaster, volume 1, The swelling of the flood, Wilkes Barre, Pennsyl- vania, before and after the Agnes flood of June 1972: Wilkes Barre, Pennsylvania, Northeast Publ., 158 p. Namias, Jerome, 1973a, Birth of Hurricane Agnes trig- gered by the transequatorial movement of a mesoscale system with a favorable large-scale environment: Monthly Weather Review, v. 101, p. 177-179. 1973b, Hurricane Agnes an event shaped by large- scale air-sea systems generated during antecedent months: Royal Meterological Society Quarterly Jour- nal, v. 99, p. 506-519. National Oceanic and Atmospheric Administration, 1972, Climatological data (by State): Ashville, North Caro- lina, National Climatic Data Center, (various months). 16 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1973a, Hurricane Agnes, June 14-23, 1972: National Weather Service, Preliminary Reports on Hurricanes and Tropical Storms, p. 13-193. 1973b, Final report of disaster survey team on the events of Agnes: National Weather Service, Natural Disaster Survey Report 73-1,45 p. National Weather Service, 1972, Black Hills flood of June 9, 1972: Natural Disaster Survey Report 72-1, 20 p. Nugent, Tom, 1973, Death at Buffalo Creek, the 1972 West Virginia flood disaster: New York, W.W. Norton and Co., Inc., 191 p. Park, W.R., Blankenship, J.C., Jr., Cook, J.O., Herndon, J.R., and Shumate, J.L., 1972, Interim report of retain- ing dam failure, No. 5 Preparation Plant, Buffalo Min- ing Company, Division of the Pittston Company, Saunders, Logan County, West Virginia, February 26, 1972: Mount Hope, West Virginia, U.S. Bureau of Mines, 12 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Robison, F.L., 1976, Floods in New York, 1972, with spe- cial reference to Tropical Storm Agnes: U.S. Geologi- cal Survey Water-Resources Investigations 34-75, 91 p. Runner, G.S., 1974, Flood on Buffalo Creek from Saunders to Man, West Virginia: U.S. Geological Survey Hydrologic Investigations Atlas HA-547, 2 sheets, scale 1:12,000. Schwarz, F.K., Hughes, L.A., Hansen, E.M., Petersen, M.S., and Kelly, D.B., 1975, The Black Hills-Rapid City flood of June 9-10, 1972 a description of the storm and flood: U.S. Geological Survey Professional Paper 877, 47 p. Simpson, R.H., and Herbert, P.J., 1973, Atlantic hurricane season of 1972: Monthly Weather Review, v. 101, p. 325-331. St. Amand, P., Davis, R.J., and Elliot, R.D., 1972, Report of Rapid City flood of 9 June 1972: Pierre, South Dakota, Report to South Dakota Weather Control Commission, 37 p. Thomas, W.O., Jr., and Corley, R.K., 1973, Floods of 1971 and 1972 on Glover Creek and Little River in south- eastern Oklahoma: U.S. Geological Survey Water- Resources Investigations 5-73, 2 sheets. U.S. Army Corps of Engineers, 1972a, Flood-damage report on flood of July 1972, Puerco River at Gallup, New Mexico: Los Angeles District, California, 3 p. 1972b, Flood of 3 September, 1972, Hillsboro, New Mexico: Albuquerque District, New Mexico, 15 p. 1972c, Flood report, Cheyenne River Basin, South Dakota Black Hills area, flood of June 9-10, 1972: Omaha District, Nebraska, various pages. 1972d, Interim flood report, 4th incident 28 May through 7 July, 1972, Washington and Montana: Seat- tle District, Washington, 33 p. 1972e, Public meeting, 11 August,1972, for citizens of South Boston, Virginia, on Tropical Storm Agnes, 20-27 June, 1972: Wilmington District, Maryland, 16 p. 1972f, Report on flood of 1-7 March 1972, western New York, in Buffalo District: Buffalo District, New York, 33 p. 1972g, Report on flood of 12 June, 1972, Phoenix metropolitan area, Arizona: Los Angeles District, Cali- fornia, 57 p., 19 pi. 1972h, Tropical Storm Agnes Operation Noah 2, after action report: Harrisburg, Susquehanna District, Pennsylvania. 1973a, Flood damage report, storm and flood of 17-21 October, 1972, Gila River Basin above San Car- los Reservoir, Arizona and New Mexico: Los Angeles District, California, 32 p. 1973b, Floods of January 1972, Johnson Creek, Ore- gon: Portland District, Oregon, Post Flood Report, 11 pi. 1973c, Flood report of June 1972, Tropical Storm Agnes summary report: New York District, 132 p. 1973d, Hurricane Agnes rainfall and floods, June-July 1972: Philadelphia District, Pennsylvania, 403 p. 1973e, Reconnaissance study, Hurricane Agnes: Philadelphia District, Pennsylvania, 46 p. 1973f, Report on floods of October 1972 and Janu- ary 1973 in Colma Creek Basin, California: San Fran- cisco District, California, 10 p., 5 pi. 1973g, Tropical Storm Agnes: North Atlantic Divi- sion, Hydrologic Study, Reports 1, 2, 3, various pagi- nation. 1974a Final report Schuylkill River Basin post Hur- ricane Agnes: Philadelphia District, Pennsylvania, 12 leaves. 1974b, Nishnabotna River Basin, Iowa, report on flood of September 1972: Omaha District, Nebraska, 32 p., 12 pis. U.S. Department of the Interior, Task Force to Study Coal Waste Hazards, 1972, Preliminary analysis of the coal refuse dam failure at Saunders, West Virginia, Febru- ary 26, 1972: Washington, D.C., 42 p. Waite, L.A., 1973, Flood of July 17, 1972, in Gallup, New Mexico: U.S. Geological Survey Water-Resources Investigations 43-73, 8 p. Summary of Significant Floods, 1972 17 1973 Moderate to severe flooding occurred along the central coast of California in Janu- ary 1973 (fig. 6). Numerous small drainages scattered along about 300 mi of coastline had the largest discharges of record. Large flows were confined to drainages of less than ry r\ 60 mi and occurred mostly in drainage areas of less than 10 mi . Much of the eastern half of the United States had above-average rainfall in March. Severe floods occurred March 7-9 and 15-16, with streamflow remaining high between the two flood periods in several streams in central Wisconsin. Rainfall on March 17-19 caused severe flooding from western Virginia to southwestern Mississippi. Maximum discharges at more than 100 streamflow-gaging stations in Tennessee and northern parts of Mississippi, Alabama, and Georgia were greater than the previous maximum of record. The discharge at one gaging station on the Tennessee River in Alabama was the largest since at least 1867. The storms that caused this flooding were widespread over much of the area east of the Mississippi River. Strong winds associated with the storms caused severe flooding along the shores of the Great Lakes with damage in Michigan, Ohio, and New York. In addition to the floods discussed above, the Northeast had floods from April 24 to May 3, June 30 to July 5, and August 2. The April-May floods led to Federal disaster declarations for four counties in extreme northeastern Maine. During the May-June floods, 40 counties spread over New Hampshire, Vermont, New York, and Pennsylva- nia were declared eligible for Federal disaster aid. Flooding was especially severe in the Delaware River and Lake Ontario Basins. The August 2 flood was described at the time as the most deadly one in the history of central New Jersey, with six deaths recorded. Spring floods along the Mississippi River resulted in disaster declarations for every county bordering the Mississippi River from the Wisconsin-Illinois State line to the mouth of the river in Louisiana. Floods that began on the Mississippi River and its trib- utaries in early March lasted through June and caused the evacuation of 50,000 people and damages of more than $400 million. New records for consecutive days above flood stage were set, and maximum stages and discharges exceeded the estimated 100-year recurrence intervals (Chin and others, 1975). A significant regional flood in the Western States during 1973 resulted from the melting of excessive snowpack in the Rocky Mountains. The highwater period began in April in Arizona and extended through June in Wyoming. Extreme flooding occurred along the South Platte River in Colorado and Nebraska, both from rain on snow and from a general warm-weather snowmelt. The general snowmelt produced significant flooding in the headwaters of the Rio Grande in central Colorado and New Mexico and in the Green River and Colorado River Basins of Wyoming, Colorado, and Utah. Several floods occurred in April, May, June, September, and November in Southern States from the Carolinas to Mississippi. Primary areas and dates of flooding were March 30-April 8 near the Georgia-Florida State line, May 27-29 in the southern Appalachian area, and June 5-6 near Atlanta, Georgia. Floods occurred near the boundary between North and South Carolina during September 13-14, and in Kentucky and Tennessee during November 25-28. Multiple floods occurred in an arc through parts of Texas, Oklahoma, Arkansas, Kansas, and Missouri during 1973. Some streams flooded several times during the year. Widespread flooding occurred in the lower parts of the Missouri, White, Arkansas, Yazoo, and Red River Basins. Flooding occurred in basins throughout much of Texas at the time of the March-April floods along the Mississippi River. Discharges in tributar- ies to the Mississippi River were not historic maximums, but their combined flows caused flooding on the main stem of the Mississippi River. Widespread flooding also 18 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Aleutian Islands , 150° 500 MILES _i 500 KILOMETERS Pacific Ocean Appalachian Mountains Atlantic Ocean 500 KILOMETERS Gulf of Mexico EXPLANATION Puerto Rico 0 20 MILES hV 020 KILOMETERS -Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 6. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1973. Summary of Significant Floods, 1973 19 occurred in Texas in June and July. The July floods affected the San Antonio, Guadalupe, and Frio River Basins and a small part of the Rio Grande Basin. Some streams reached the highest stages since the mid-1800's. Other periods of significant flooding occurred in the Texas-Missouri arc from late Septem- ber through mid-October and in late November. Flood crests occurred mainly during September 26-29, Octo- ber 11-13, and November 24-26, but small areas had flooding on other dates, especially September 5-7 and September 12-14. At numerous streamflow-gaging stations, discharges during late September and mid- October floods ranked highest or second highest in many years of record; at others, the November dis- charge was larger. Selected References for 1973 Bingham, R.H., Bergman, D.L., and Thomas, W.O., Jr., 1974, Flood of October 1973 in Enid and vicinity, north-central Oklahoma: U.S. Geological Survey Water-Resources Investigations 27-74,2 sheets. Chin, E.H., Skelton, John, and Guy, H.R, 1975, The Missis- sippi River basin flood compilation and analysis of meteorologic, streamflow and sediment data: U.S. Geological Survey Professional Paper 937, 137 p. Ducret, G.L., Jr., and Hansen, W.R., 1973, Storm of May 5-6, 1973, in Denver Metro area, frequency and effect: Denver, Colorado, Urban Drainage and Flood Control District, 40 p. Edelen, G.W., Jr., and Miller, J.F, 1976 Floods of March-April 1973 in southeastern United States: U.S. Geological Survey Professional Paper 998,283 p. Hansen, W.R., 1973, Effects of the May 5-6, 1973, storm in the Greater Denver Area, Colorado: U.S. Geological Survey Circular 689, 20 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Merritt, L.P, Wilk, K.E., and Weible, M.L., 1974, Severe rainstorm at Enid, Oklahoma, October 10, 1973: National Oceanic and Atmospheric Administration TM ERL NSSL-73, 50 p. National Oceanic and Atmospheric Administration (NOAA), 1973, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Stankowski, S.J., and Velnich, A.J., 1974, A summary of peak stages and discharges for the flood of August 1973 in New Jersey: U.S. Geological Survey Open- File Report 74-1097, 12 p. Tennessee Valley Authority, 1974, Floods of March 1973 in the Tennessee River Basin: Divisions of Water Control, Planning Report No. 0-7129, 49 p. U.S. Army Corps of Engineers, 1973a, Flood report, flood of 14-17 July, 1973, Tornillo, Texas: Albuquerque Dis- trict, New Mexico, lip. 1973b, Flood report of 27 September, 1973, Kinsley, Kansas: Albuquerque District, New Mexico, lip. 1973c, Post flood report, Mississippi River and trib- utary systems, White River Basin, spring 1973: Little Rock District, Arkansas, 44 p. 1973d, Flood of September 14, 1973, Little River, Laurens County, South Carolina: Charleston District, South Carolina, 15 p. 1974a, Office report on May-July 1973 snowmelt floods, upper Colorado River Basin, Colorado, New Mexico, and Great Basin, Utah: Sacramento District, California, 19 p. 1974b, Report on floods and flood damage in the Kansas City District during 1973: Kansas City District, Missouri, 37 p. 1974c (revised 1983), Special flood hazard informa- tion-Suwannee River floods, Florida and Georgia: Jacksonville District, Florida, 12 p., 41 pi. 1974d, Post flood report, Platte River and tributaries, Nebraska, Wyoming, and Colorado, floods of May-June 1973: Omaho District, Nebraska, v. 1, 85 p. 1975a, The flood of August 1973: New York Dis- trict, New York, 95 p. 1975b, Report of flood on Black and Pocotaligo Riv- ers, South Carolina, 8-17 June, 1973: Charleston Dis- trict, South Carolina, 14 p. 20 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1974 The most significant floods during 1974 occurred in January in Montana, Idaho, Washington, Oregon, and northern California (fig. 7) and caused as much as $250 mil- lion in damage. Significant floods occurred on the west slopes of the Cascade and Sierra Nevada Ranges, and in western Montana, western Idaho, and small parts of eastern Washington. New maximums of record were established at many gaging stations in the Spokane River Basin of Idaho. Flooding was severe on small streams in the Kootenai River Basin in Montana and on streams in the Kootenai and Pend Oreille River Basins in Idaho. Ice jams caused most flooding in the Snake River Basin. The Salmon River, a tributary to the Snake River, had record high floods enhanced by ice jams. Record and near-record flooding also occurred in southwestern Oregon and northwestern California. The Verdigris and Neosho Rivers, tributaries to the Arkansas River in Kansas and Oklahoma, had record flooding in March, and other streams in eastern Kansas and Oklahoma had near-record flooding in March and April. Flooding from basins in west- ern Mississippi kept the Mississippi River high through much of April. Rains of May 13-20 in the upper Mississippi, Illinois, and lower Missouri River Basins caused another flood on the Mississippi River. The May flood in the Missouri River Basin pro- duced few extreme discharges but still caused considerable damage. Snowmelt during April, May, and June produced significantly high discharges in the Souris and Pembina River Basins of North Dakota, the Yellowstone, Gallatin, Bit- terroot, Swan Rivers, and other basins of northwestern Wyoming and southwestern Montana, and the Salmon River Basin of Idaho. Northern Maine also had record high floods from snowmelt and ice jams. Nationwide, thunderstorm floods during the summer of 1974 generally did less damage than usual. The absence of severe thunderstorm floods was particularly obvious in the Midwest where floods of this type generally occur frequently. Only two Federal disaster declarations resulted from floods in the conterminous States from July through October. One disaster declaration resulted from flash floods in central New York. The second was for Hurricane Carmen in Louisiana. Hurricane Carmen, which came ashore on September 7, was the only hurricane to make landfall in the United States in 1974. Hurricane Carmen did about $150 million in damage (U.S. Army Corps of Engineers, 1975a) but produced excessive rain in only a few areas and caused little riverine flood- ing. Much of the damage resulted from flooding in the Mississippi Delta area. Southeastern Alaska had nearly continuous rainfall in September and October. A few streams near Ketchikan had the second or third highest discharges of record on October 8-9. Elsewhere in Alaska, a glacial lake outburst caused record high discharges on the Kenai River on September 14-15. The southern Great Plains from Kansas to northeast Texas received excessive rain- fall from late August to late November. Hooding occurred in Texas on August 28, Sep- tember 13-14, September 17-18, September 20-21, October 30-November 10, and November 23. Most of the rains produced widespread, low-magnitude floods, but there were a few isolated areas of high runoff. Other than moderately high discharges at a few gaging stations, most of the floods were not unusual. Summary of Significant Floods, 1974 21 '60° 150° Aleutian Islands . 0 | i | | 500 MILES 0 500 KILOMETERS Spofcane River fend Oreille River Kootenai River Siuan River Cascade Pacific Ocean Atlantic Ocean 500 KILOMETERS Gulf of Mexico Puerto Rico EXPLANATION 0 20 MILES 020 KILOMETERS -Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 7. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1974. 22 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Selected References for 1974 Chin, E.H., 1975, The flood of April 1974 in southern Mis- sissippi and southeastern Louisiana: National Oceanic and Atmospheric Administration Technical Memoran- dum NWS Hydro-24,45 p. Glancy, P.A., and Harmsen, Lynn, 1975, A hydrologic assessment of the September 14, 1974, flood in Eldo- rado Canyon, Nevada: U.S. Geological Survey Profes- sional Paper 930, 28 p. Haire, W.J., and Johnson, K.G., 1978a, Floods of Novem- ber 11-13,1974, in St. Croix, U.S. Virgin Islands: U.S. Geological Survey Water-Resources Investigations Report 77-136, 11 sheets. ___1978b, Floods of November 12, 1974 in the Charlotte Amalie area, St. Thomas, U.S. Virgin Islands: U.S. Geological Survey Water-Resources Investigations Report 76-191, 2 sheets. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Johnson, M.V, and Omang, R.J., 1974, Floods of Jan- uary 15-17, 1974, in northwestern Montana: U.S. Geological Survey Open-File Report 74-38, 10 p. National Oceanic and Atmospheric Administration (NOAA), 1974, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Schroeder, T.A., 1976, Meteorological aspects of the Oahu flood of April 19, 1974: Honolulu, Water Resources Research Center, University of Hawaii, Technical Report 97 (UHMET 76-03), 62 p. 1977, Meteorological analysis of an Oahu flood: Monthly Weather Review, v. 105, p. 458^68. U.S. Army Corps of Engineers, 1974a, Office report on the January, March-April 1974 rain floods in the Sacra- mento River Basin, California: Sacramento District, California, 37 p. 1974b, 1974 Post flood report, part I January floods: Walla Walla District, Washington, 69 p. 1974c, Post flood report, storm of April 19, 1974, Islands of Kauai, Oahu, and Maui: Pacific Ocean Divi- sion, 33 p. 1975a, Post flood report, flood of 1974: New Orleans District, Louisiana, 96 p. 1975b, Hurricane Carmen, 7-8 September, 1974: New Orleans District, Louisiana, 78 p. 1975c, Post flood report, 1974 spring floods, Souris and Red River Basins: St. Paul District, Minnesota, 82 p. 1975d, Report on floods and flood damages in the Kansas City District during 1974: Kansas City District, Missouri, 28 p. 1975e, Post flood report, Mississippi and Illinois River Basins, 1974 floods: St. Louis District, Missouri, 52 p. 1975f, Post flood report, January 1974 flood in the Portland District, Oregon and Washington: Portland District, Oregon, 189 p. 1975g, Post disaster report on April 1974 floods in Mississippi in the Mobile District: Mobile District, Alabama, 47 p. -1977, Report on floods of January and March 1974 in the Russian River basin, California: San Francisco District, California, 39 p., 22 pi. U.S. Geological Survey, 1975, 1974 Water resources data for Idaho, part I surface water records: Boise, Idaho, p. 9-17. Summary of Significant Floods, 1974 23 1975 Nearly constant flood conditions plagued the eastern half of the United States from January to April 1975. Cycles of snow, rain, and snowmelt contributed to many floods. The floods continued to compound through time; by April, many streams in the Missis- sippi and Ohio River Basins exceeded flood stages. The 1975 floods caused damages of $44 million along the lower Mississippi (U.S. Army Corps of Engineers, 1975a). In addition to the Mississippi and Ohio River floods, several other floods occurred in Ala- bama, Michigan, Minnesota, Wisconsin, and North Dakota during the month of April (fig. 8). Ten inches of rainfall, most of which fell within a 24-hour period, caused signifi- cant flooding in central Tennessee from March 12 to 14 (National Oceanic and Atmo- spheric Administration, 1975). The Cumberland River Basin, including the Nashville metropolitan area, was most affected by the flooding. The Cumberland River at Nash- ville crested at 47.6 ft, the highest regulated stage on record. On March 22, warm temperatures and about 1 in. of rainfall caused 10 to 20 in. of snow in northern Illinois to melt quickly and caused severe flooding in the Rock, Peca- tonica, and Illinois Rivers. Record flooding was also reported in southern Wisconsin. High water in the Pecatonica River caused record flooding on the Rock River at Rock- ton and Rockford, Illinois. The crest at Rockton exceeded the previous record crest recorded in 1937. Significant flooding occurred in parts of lower Michigan as a result of intense rain- fall on April 18 and 19. Flooding was intensified by the already swollen streams and saturated ground that resulted from the snowpack melting 2 weeks earlier. The area around and including the city of Lansing was the worst hit by the floods, with many streams having 100-year or greater recurrence-interval floods. U.S. Geological Survey streamflow-gaging stations recorded maximum stages on the Thornapple River, the highest since the record-setting flood in 1947. Ice jams created extensive flooding in Alaska in May. An ice jam near Holy cross on the Yukon River caused the worst flooding known at the village of Anvik. The ice jam created a lake with an area of about 1,000 mi2. The Yukon River remained in overbank flow until June 26 while the huge lake drained. Snowmelt and ample rainfall caused significant flooding in the upper Missouri River Basin from May to July. The Sun River crested 6 ft above flood stage at Great Falls, Montana. A record stage was recorded on the Musselshell River at Harlowton, Montana (station 06120500, table 27). Record-setting floods plagued the Red River of the North Basin in North Dakota and Minnesota during the month of July. Eleven streamflow-gaging stations recorded maximum-of-record flows. The flood was one of the most damaging to occur in the region and unusual because it was caused entirely by rainfall; snowmelt usually plays a role in flooding in the region. An estimated $245 million in damage was attributed to the flood (Paulson and others, 1991). Thirteen counties were declared eligible for Federal disaster aid, and one death and $12 million in damages were caused by the July 13-15 flood in New Jersey (Paulson and others, 1991). The second highest stage of record was recorded on the Millstone River at Blackwells Mills, New Jersey (station 01402000, table 31). The flood was caused by a storm that had rainfall totals of more than 10 in. at several locations. On July 20-21, a second storm caused greater than 100-year recurrence-interval flooding along Assunpink Creek in the Trenton, New Jersey, area. Hurricane Eloise caused flooding in Puerto Rico and the Eastern States during September. The hurricane passed near the north coast of Puerto Rico causing torrential 24 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 760° 150= 0 < | ^00 MILES 0 500 KILOMETERS Great Falls CANADA Musselshell Red River of ,River 100° the North Pacific Ocean NH MA Rl Blackwells Mills Millstone River -Trenton ^Assunpink Creek DE MD ,~ ~ " - « yj Pecatonica ,,_ ^ River \ NE . Rockford Atlantic Ocean -Virgin Islands EXPLANATION Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 8. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1975. Summary of Significant Floods, 1975 25 rains across the island. As much as 23 in. fell in Mari- cao during a 24-hour period (National Oceanic and Atmospheric Administration, 1975). Several rivers had maximum discharges that were the highest of record and had recurrence intervals of 50 to 100 years. Hurricane Eloise made landfall in southeastern Louisi- ana on September 22. The hurricane then followed a northeasterly path across Mississippi and Alabama and along the East Coast. Floods occurred from Lou- isana to Maryland. Damages were estimated at $415 million. Counties in New York, Pennsylvania, Maryland, Florida, and Alabama were declared disaster areas. Selected References for 1975 Aldridge, B.N., 1978, Unusual hydraulic phenomena of flash floods in Arizona, in Proceedings of Conference on Flash Floods: Hydrometeorological Aspects of the American Meteorological Society, Los Angeles, Cali- fornia, May 2-13, 1978, p. 117-119. Hershfield, D.M. 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Johnson, K.G., 1981a, Flood of September 16, 1975, in the Guayanilla Valley, Puerto Rico: U.S. Geological Sur- vey Open-File Report 80-1282, 1 sheet. 1981b, Flood of September 16, 1975, in the Guana- jibo Valley, Puerto Rico: U.S. Geological Survey Open-File Report 81-805, 13 p. 1981c, Flood of September 16, 1975, at Utuado, Puerto Rico: U.S. Geological Survey Open-File Report 81-413, 18 p. 1981d, Flood of September 16, 1975, in the Youco Valley, Puerto Rico: U.S. Geological Survey Open-File Report 81-331, 13 p. 1981e, Flood of September 16, 1975, in the Tallaboa Valley, Puerto Rico: U.S. Geological Survey Open-File Report 80-1283, 5 p. Johnson, K.G., and Gonzales, Ralph, 1981, Flood of Sep- tember 16, 1975, in the Guania area, Puerto Rico: U.S. Geological Survey Open-File Report 81^80, 14 p. Johnson, K.G., and Quinones-Aponte, Vicente, 1981, Flood of September 16, 1975, in the Anasco area, Puerto Rico: U.S. Geological Survey Open-File Report 81-345, 17 p. Katzer, T.L., Glancy, PA., and Harmsen, L., 1976, A brief hydrologic appraisal of the July 3-4, 1975, flash flood in Las Vegas Valley, Nevada: U.S. Geological Survey Open-File Report 76-100, 40 p. Knutilla, R.L., and Swallow, L.A., 1975a, Flood of April 1975 at Meridian Township, Michigan: U.S. Geological Survey Open-File Report 75-301, 2 sheets. 1975b, Flood of April 1975 at Williamston, Michigan: U.S. Geological Survey Open-File Report 75-289, 1 sheet. Lara, O.G., and Heinitz, A.J., 1976, Flood of June 1975 in city of Ames, Iowa: U.S. Geological Survey Open-File Report 76-728, 56 p. Lindskov, K.L., 1975, Data summary of June-July 1975 floods in eastern North Dakota and northwestern Minnesota: U.S. Geological Survey Open-File Report 75-565, 15 p. Miller, J.B., and Swallow, L.A., 1975, Flood of April 1975, Lansing, Michigan: U.S. Geological Survey Open-File Report 75-300, 2 sheets. National Oceanic and Atmospheric Administration (NOAA), 1975, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Randerson, D., 1976, Meteorological analysis for the Las Vegas, Nevada, flood July 3, 1975: Monthly Weather Review, v. 104, 19 p. Stankowski, S.J., Schopp, R.D., and Velnich, A.J., 1975, Flood of July 21, 1975, in Mercer County, New Jersey: U.S. Geological Survey Water-Resources Investiga- tions 51-75, 52 p. U.S. Army Corps of Engineers, 1975a, Post flood report, 1975 Mississippi River flood: Vicksburg District, Mis- sissippi, various pages. 1975b, Post disaster report, July-August floods in the Mobile District: Mobile District, Alabama, 66 p. 1975c, Report of flood, 24 August, 1975, Cleveland, Ohio: Buffalo District, New York, 17 p. 1977, Post damage report on Hurricane Eloise [Sep- tember 16, 1975] in Puerto Rico: Jacksonville District, Mississippi, 38 leaves. 26 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1976 An unusually intense winter storm hit the island of Oahu, Hawaii, on February 7, 1976 (fig. 9). As much as 4 in. of rain fell in some areas during a period of 1.5 hours. Between 17 and 20 in. total fell throughout the course of the storm (National Oceanic and Atmospheric Administration, 1976). Streams draining the western slopes of Oahu's mountains reached record high discharges. Snowmelt during March and April caused prolonged flooding in North Dakota and Minnesota. Warm temperatures during the last week of March began melting an 18-in. snowpack. Flooding was the worst in the Souris River Basin of North Dakota. As record stages were being recorded at streamflow-gaging stations, a 6-week advance forecast of the severity of the floods gave time to improve levee systems in North Dakota preventing much additional damage. On May 30, a weak cold front stalled over Tulsa, Oklahoma, for several hours. Total rainfall of 7 to 10 in. was unofficially reported. Previous maximum gage heights were exceeded by 1 to 3 ft at two streamflow-gaging stations on Mingo Creek. Flooding covered a larger area and caused more damage than any previously known flood along Mingo Creek. The greatest flood disaster of 1976 occurred on June 5 when the Teton Dam in Idaho failed. The Teton Dam is located on the Teton River in the headwaters of the Snake River Basin. The dam was breached as the reservoir was filling for the first time. About 173,000 acre-ft of water drained through the dam in 2 hours and 23 minutes. The maximum discharge downstream from the dam was estimated at 2.3 million ft3/s. The flood caused 11 deaths, and damages were estimated at $400 million (Paulson and oth- ers, 1991). Severe floods hit the Houston, Texas, metropolitan area on June 15. The floods were caused by intense rainfall totalling as much as 13 in. (National Oceanic and Atmo- spheric Administration, 1976), most of which fell within a 3-hour period. The discharge of the Brays Bayou was 29,000 ft3/s, which is considered the 40-year recurrence inter- val. Eight deaths and an estimated $25 million in damages resulted from the flood (Paulson and others, 1991). A storm producing 4 to 6 in. of rain on June 19-20 hit south-central New York and north-central Pennsylvania (National Oceanic and Atmospheric Administration, 1976). The rain produced unusually large maximum discharges in small tributaries to the Chemung River near Coming and in the headwaters of Catharine Creek. On July 3 and 4, large floods occurred in southeastern Kansas. Otter Creek and Elk River were the most affected by the 4 to 8 in. of rain that fell during 2 days (National Oceanic and Atmospheric Administration, 1976). The maximum stages on Otter Creek and Elk River were the largest known for their periods of record. The Walnut River at El Dorado was reported to have crested almost 1 ft above the previous maximum stage. The second largest flood disaster of 1976 was the Big Thompson River flood in Colorado. The area most affected by the flood was the Big Thompson Canyon, espe- cially the area downstream from Estes Park, Colorado. The flood was caused by a storm on July 31 through August 1, with rainfall amounts totalling as much as 12 in. in some areas (National Oceanic and Atmospheric Administration, 1976); an estimated 7.5 in. of rain fell in some areas in 1 hour. Maximum discharges on the North Fork Big Thompson and Big Thompson Rivers exceeded previously recorded maximums at sev- eral locations. Reports of an estimated 19-ft high wall of water rushed through Big Thompson Canyon destroying everything in its path. In the narrows of the canyon, stream levels rose to 14 ft above pre-flood levels and washed away 1.9 mi of highway. The flood resulted in 139 deaths and 5 missing persons, destroyed 323 homes and Summary of Significant Floods, 1976 27 '60° 150° 0 500 MILES 0 500 KILOMETERS Pacific Ocean EXPLANATION L_ Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding I BBBHBBHHBBi Figure 9. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1976. 28 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 96 mobile homes, and damaged many other homes. Two counties were declared Federal disaster areas, and the flood caused $39 million in damages (Paulson and others, 1991). Selected References for 1976 Harenberg, W.A., and Bigelow, B.B., 1976a, Teton Dam flood of June 1976, Moody Quadrangle, Idaho: U.S. Geological Survey Hydrologic Investigations Atlas HA-568, 1 sheet, scale 1:24,000. 1976b, Teton Dam flood of June 1976, Rexburg Quadrangle, Idaho: U.S. Geological Survey Hydro- logic Investigations Atlas HA-569, 1 sheet, scale 1:24,000. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Hubbard, L.L., and Bartells, J.H., 1976, Teton Dam flood of June 1976, Pingree Quadrangle, Idaho: U.S. Geologi- cal Survey Hydrologic Investigations Atlas HA-581, 1 sheet, scale 1:24,000. Johnson, M.V., 1978, Floods of June 4 and 12, 1976, at Cul- bertson, Montana: U.S. Geological Survey Open-File Report 78^29, 6 p. Morrill, R.A, Chin, E.H., and Richardson, W.S., 1979, Maine coastal storm and flood of February 2, 1976: U.S. Geological Survey Professional Paper 1087, 20 p. National Oceanic and Atmospheric Administration (NOAA), 1976, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Ray, H.A., Kjelstrom, L.C., Crosthwaite, E.G., and Low, W.H., 1977, The flood in southeastern Idaho from the Teton Dam failure of June 5, 1976: U.S. Geological Survey Open-File Report 77-765, 82 p. Ray, H.A., Matthai, H.F, and Thomas, C.A., 1976, Teton Dam flood of June 1976, Newdale Quadrangle, Idaho: U.S. Geological Survey Hydrologic Investigations Atlas HA-565, 1 sheet, scale 1:24,000. Schroeder, T.A., 1978, Meteorology of Hawaiian flash floods, in American Meteorological Society Proceed- ings for Conference on Flash Floods: Hydrometeoro- logical Aspects, May 2-3, 1978, Los Angeles, California, p. 17-20. Thomas, C.A., and Ray, H.A., 1976, Teton Dam flood of June 1976, Parker Quadrangle, Idaho: U.S. Geological Survey Hydrologic Investigations Atlas HA-567, 1 sheet, scale 1:24,000. Thomas, C.A., Ray, H.A., and Matthai, H.F, 1976, Teton Dam flood of June 1976, St. Anthony Quadrangle, Idaho: U.S. Geological Survey Hydrologic Investiga- tions Atlas HA-566, 1 sheet, scale 1:24,000. Thomas, Janet, ed., 1977, That day in June reflection on . the Teton Dam disaster: Rexburg, Idaho, Ricks College Press, 309 p. U.S. Army Corps of Engineers, 1976, Report of flood 16-18 February, 1976, Cattaraugus Creek, towns of Brant and Hanover, New York: Buffalo District, New York, 31 p. 1977a, After action report, June 1976 Teton Dam disaster, Teton River, Idaho: Walla Walla District, Washington, various pages. 1977b, Flood damage report, San Bernadino, River- side 1976: Los Angeles District, California, 34 p. U.S. Congress, Committee on Government Operations, 1976a, Teton Dam disaster: Washington, D.C., Thirteenth report, 94th Congress 2d session, House Report 94-1667. 1976b, Teton Dam disaster Hearings before Conservation, Energy and National Resources Sub- committee, August 5, 6 and 31, 1976: 94th Congress, 2d session. Summary of Signf leant Floods, 1976 29 1977 Significant flooding did not occur in 1977 until early April when eastern parts of the Ohio River Basin were inundated by a storm producing excessive amounts of rain. The headwaters of the Kanawha, Guyandotte, Big Sandy, Kentucky, Cumberland, and Tennessee Rivers located in southern West Virginia, southeastern Kentucky, extreme western Virginia, and northeastern Tennessee were most affected by the storm (fig. 10). Rainfall amounts of between 4 and 15.5 in. fell over the western slopes of the Appala- chian Mountains (National Oceanic and Atmospheric Administration, 1977). The maximum rainfall occurred in southwestern West Virginia, over a period of about 30 hours. The 15.5 in. of rainfall was consid- erably more than the 5.5 in. expected for the 24-hour, 100-year recurrence-interval storm. Record flooding was recorded on the Guyandotte River at Baileysville, West Virginia (station 03202400, table 50) and all along the Tug Fork River. Flood discharges at some locations were greater than the 100-year recurrence interval. Many small streams in the headwaters of the Tennessee River recorded new maximum discharges of record. No large cities were affected by the flood- ing, but a number of small towns and populated rural areas were severely damaged; 15 counties in Ken- tucky, 6 in Tennessee, 17 in Virginia, and 11 in West Virginia were declared Federal disaster areas. There were 22 deaths, and total damages were estimated at $430 million. About 40,000 families were affected in the four-State area (Runner and Chin, 1980). A storm moved into the Mississippi Delta area of Louisiana during the evening of April 19 and produced rain in the area until the morning of April 22. Rainfall amounts from 6 to 13 in. were reported in the Delta area, and 15 in. of rain was reported west of the Delta (National Oceanic and Atmospheric Administration, 1977). Record maximum discharges were recorded on the Tangipahoa, Tickfaw, Amite, and Comite Rivers. The Johnstown, Pennsylvania, area experienced flash flooding as a result of almost continuous rains from about 7:00 p.m., July 19 to 4:00 a.m., July 20. Rainfall intensities during much of this time averaged 2 in/hr, with maximum rainfall totals of 12 in. recorded northeast of Johnstown (National Oceanic and Atmospheric Administration, 1977). Flooding was severe along the east side of the Allegheny River Basin. Johnstown, located where the Stonycreek and Little Conemaugh Rivers join to form the Conemaugh River, was adversely affected by the flood. Water 4 to 8 ft deep flowed through the downtown streets. Seven earth-fill, gravity-type dams failed in the area. The worst dam failure, located on Laurel Run, caused 44 deaths. Maximum discharges of record were recorded at 11 streamflow-gaging stations in the area. Of these 11 stations, 6 recorded discharges with recur- rence intervals of 100 years or greater. Overall, the cat- astrophic floods were responsible for 78 deaths (Paulson and others, 1991), destroying 413 dwellings and causing major damage to 1,363 homes. Eight counties were declared Federal disaster areas, and an estimated $300 million in damages occurred (Paulson and others, 1991). The flood of August 27-28 in West Cache and Blue Beaver Creeks in southwestern Oklahoma was the result of a severe summer thunderstorm. Rainfall data indicated 24-hour totals of 12 in. immediately south of Cache, with an area-weighted average rainfall of 7.7 in. during a 6-hour storm period within a 200-mi2 area. Damages were $1 million (Paulson and others, 1991). On September 12 and 13, two intense storms hit the Kansas City, Kansas and Missouri area within 12 hours of each other and caused severe flooding, especially on Brush Creek which runs through the metropolitan area. The storms both had recurrence intervals of 100 years and produced 6 to 7 in. of rain each (National Oceanic and Atmospheric Administra- tion, 1977). Total rainfall was as much as 16 in. in some areas of Kansas City. Twenty-five deaths were caused by the floods, and damages were more than $80 million (Hauth and others, 1981). The Eastern and Southeastern States were plagued by flood-producing rains during the months of October and November. Most of the flooding occurred on the west side of the Appalachian Mountains. Floods were especially severe in the headwaters of the Kanawha and Tennessee Rivers in eastern Tennessee, western Virginia, and North Carolina. The Holston River Basin in western Virginia and eastern Tennessee received excessive rainfall on October 2-3 and again on November 6-7, and several maximum discharges of record occurred on streams in the basin. The Novem- ber 6-7 floods were especially severe along the New River in Tennessee. As much as 14 in. of total rainfall occurred in parts of North Carolina (National Oceanic and Atmospheric Administration, 1977), creating floods that were said to be the among the worst in his- tory in North Carolina. Recurrence intervals greater than 100 years were reported for four streamflow- 30 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 760° 150° -r Columbia River Cowlitz River Willamette River- igh River Pacific Ocean Atlantic Ocean 500 KILOMETERS Gulf of Mexico EXPLANATION Puerto Rico -Virgin Islands 0 20 MILES [i i 020 KILOMETERS Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 10. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1977. Summary of Significant Floods, 1977 31 gaging stations in North Carolina. The floods were responsible for 13 deaths, 3,600 homeless, and 9,000 unemployed. The floods destroyed 384 homes and 91 bridges, and caused 12 dams to fail. Fifty mil- lion dollars in damages were reported for North Caro- lina alone (Paulson and others, 1981). Sixteen counties in North Carolina, eight in Virginia, and six in Tennes- see were declared Federal disaster areas. Rainfall of 5 to 7 in. caused severe flooding on small streams in northern Georgia on November 2-6 and eventually caused the failure of the Kelly Barnes Dam in Toccoa, Georgia. The dam failed at 1:30 a.m. on November 6, resulting in a 25-ft wave of water rushing down the narrow canyon toward the Toccoa Falls Bible College. The campus was inundated within minutes. One dormitory had 8 ft of water on the ground floor. A trailer park associated with the college was destroyed as 10 ft of water rushed through it. Thirty-nine deaths and $2.8 million in damages occurred during this flash flood (Paulson and others, 1991). A drought that had plagued the Pacific Northwest throughout the year was broken with November and December storms. The storms caused large amounts of rain and flooding in three separate events during the 2 months. Twelve Washington counties were declared Federal disaster areas (Washington State Department of Community, Trade and Economy, 1995) (U.S. Army Corps of Engineers, 1978c). North- ern Washington was affected by the December 2-3 flood, which resulted in five deaths and $14.8 million in damages. Southern Washington and northern Oregon experienced flooding on three different occa- sions. Flooding occurred in the Cowlitz River Basin in southwest Washingon and along the Columbia River in Oregon on November 25, December 2-3, and December 13-15. Flooding in the Willamette River Basin of Oregon occurred on November 25 and December 13-15. These floods caused $16.2 million in damages in the lower Columbia River Basin and along coastal drainages in Oregon (U.S. Army Corps of Engineers, 1978c). Selected References for 1977 Aldridge, B.N., and Eychaner, J.H., 1984, Floods of Octo- ber 1977 in southern Arizona and March 1978 in cen- tral Arizona: U.S. Geological Survey Water-Supply Paper 2223, 143 p. Arizona State University, 1977, Heather hits hard: Arizona's Weather Word, Laboratory of Climatology, v. 4, no. 3, p. 10-14. Brua, S.A., 1977, Floods of July 19-20, 1977, in Johnstown area, western Pennsylvania: U.S. Geological Survey Open-File Report 78-963, 82 p. Coleman, Ron, 1977, The great flood of April 4, 1977, at Grundy, [Virginia], a pictorial account: Grundy, Vir- ginia, Virginia Mountaineer, 84 p. Corley, R.K., and Huntzinger, T.L., 1979, Flood of August 27-28, 1977, West Cache Creek and Blue Bea- ver Creek, southwestern Oklahoma: U.S. Geological Survey Open-File Report 79-276, 1 sheet. Cruse, J.V, and Taggart, Elizabeth, 1977, The Johnstown flood, 1977 pictorial works: Altoona, Pennsylvania, Jujulah Corp., 30 p. Denning, George, Gay, Robert, and Lombard, Louis, 1977, Record floods in southwest Virginia, April 1977: Vir- ginia State Water Control Board Information Bulletin 527, 46 p. Federal Investigative Board, 1977, Report of failure of Kelly Barnes Dam, Toccoa, Georgia: U.S. Army Corps of Engineers, National Weather Service, Soil Conserva- tion Service, and U.S. Geological Survey, 37 p. Hauth, L.D., and Carswell, W.J., Jr., 1978, Floods in Kansas City, Missouri and Kansas, September 12-13, 1977: U.S. Geological Survey Water-Resources Investiga- tions 78-63, 36 p. Hauth, L.D., Carswell, W.J., Jr., and Chin, E.H., 1981, Floods in Kansas City, Missouri and Kansas, Septem- ber 12-13, 1977: U.S. Geological Survey Professional Paper 1169, 47 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Johnson, K.G., Carrasquillo, R.A., and Gonzalez R., 1982, Flood of October 8, 1977, in St. Croix, U.S. Virgin Islands: U.S. Geological Survey Open-File Report 82-262, 21 p. Kentucky Department of Natural Resources and Environ- mental Protection, 1977, The floods of April, a report on the April 1977 flood in southeastern Kentucky: 160 p. Kuehnast, E.L., Baker, D.G., and Landlo, J.A., 1988, Six- teen-year study of Minnesota flash floods: Minnesota Department of Natural Resources, Division of Water, State Climatology Office and University of Minnesota, Soil Science Department, p. 27-29. National Oceanic and Atmospheric Administration, 1977 a, Climatological data (by State): Ashville, North Caro- lina, National Climatic Data Center, (various months). ___1977b, Kansas City flash flood of September 12-13, 1977: Natural Disaster Survey Report 77-2, 49 p. 32 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 National Weather Service, 1977, Johnstown, Pennsylvania, flash flood of July 19-20, 1977: Natural Disaster Sur- vey Report 77-1, 60 p. North Carolina Department of Transportation, 1978, Flood damage report, the western North Carolina flood damage to the highway system as a result of flooding in November 1977: 19 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Runner, G.S., 1979, Flood of April 1977 on the Tug Fork, Matewan to Williamson, West Virginia and Kentucky: U.S. Geological Survey Hydrologic Investigations Atlas HA-588, 1 sheet, scale 1:12,000. Runner, G.S., and Chin, E.H., 1980, Flood of April 1977 in the Appalachian region of Kentucky, Tennessee, Vir- ginia, and West Virginia: U.S. Geological Survey Pro- fessional Paper 1098,43 p. Sanders, C.L., and Sauer, V.B., 1979, Kelly Barnes Dam flood of November 6,1977, near Toccoa, Georgia: U.S. Geological Survey Hydrologic Investigations Atlas HA-613, 2 sheets, scale 1:12,000. Schopp, R.D., and Velnick, A.J., 1979, Flood of Novem- ber 8-10, 1977, northeastern and central New Jersey: U.S. Geological Survey Open-File 79-559, 33 p. Scofield, R.A., 1978, Using satellite imagery to estimate rainfall during the Johnstown rainstorm, [July 19-20, 1977], in American Meteorological Society 1978 Conference on Flash Floods: American Meteorological Society, 9 p. Stewart, J.M., Heath, R.C., and Morris, J.N., (publication date unknown), Floods in western North Carolina, November 1977, a lesson for the future: Raleigh, Uni- versity of North Carolina, Water Resources Research Institute, 23 p. U.S. Army Corps of Engineers, 1977a, After action report, flood of April 2-5, 1977, in southeastern Kentucky: Louisville District, Kentucky, 32 p. 1977b, Flood report of April 1977, upper Cumber- land River Basin: Nashville District, Tennessee, 66 p. 1978a, Floods of July 19-20,1977, in the Johnstown area, western Pennsylvania: Pittsburgh District, Penn- sylvania, 62 p. 1978b, Flood damage report storm and floods of 6-10 October, 1977 on Santa Cruz, Gila, and San Pedro Rivers, Arizona: Los Angeles District, Califor- nia, 19 p. 1978c, Post flood report, November-December 1977 floods in Portland District, Oregon and Washing- ton: Portland District, Oregon, 106 p. Summary of Significant Floods, 1977 33 1978 The first significant flood of 1978 resulted from the February 6 and 7 "Blizzard of 1978." This storm formed in the Carolinas and moved northward along the Atlantic seaboard. The storm produced record amounts of snow and hurricane-force winds. Record tidal flooding occurred from Boston, Massachusetts, northward to Portland, Maine (fig. 11). Total economic losses from the storm, including damages directly caused by the storm and costs of snow removal, approached $1 billion (Platt and McMullen, 1978). Spring floods accompanied melting of a large snowpack in the Red River of the North Basin and the Missouri River Basin in the North-Central States. Flooding in different areas continued through the spring months. Above-average precipitation had pro- duced a large, wet snowpack over much of Minnesota, North Dakota, South Dakota, eastern Montana, and parts of northern Nebraska and western Iowa. Much of the ground in the Missouri River Basin froze earlier than normal during the winter season when the ground had a high-moisture content, and the frozen ground would not absorb the snowmelt. Consistently warm temperatures and rains on March 11-12 caused rapid snowmelt throughout the basin and flooding condi- tions within a few days. A maximum discharge of record was recorded on the Wild Rice River at Hen- drum, Minnesota (station 05064000, table 24). Flooding occurred in Wyoming and southern Montana as the result of intense rains that began the evening of May 16 and continued through the morning of May 19. Before the rain, the streams in the area were already flowing at or near bankfull because of snowmelt and above-average precipitation earlier in the spring. Fourteen streamflow-gaging stations in Montana recorded discharges at or above the 100-year recurrence interval, and about one-fifth of the 164 sta- tions in Montana recorded maximums of record due to this flood. June and July were very wet months for Minne- sota and Wisconsin. Storms caused flash flooding on many different occasions throughout the 2 months in both States. Flooding on July 1-3 was particularly severe in the Kickapoo River Basin of southwestern Wisconsin. The flood caused discharges that are the maximums of record at 11 gaging stations with recur- rence intervals of 100 years or greater. On July 5 and 6, Rochester, Minnesota, received intense rains. The National Weather Service rain gage at the airport recorded 4.99 in. of rain over a 3-hour period (National Oceanic and Atmospheric Administration, 1978). The total rainfall far exceeded the amount of a 100-year recurrence interval for that time period. The floods caused by the storm were the largest of record since 1888 on Bear and Silver Creeks and the largest of record on the South Fork Zumbro River since 1855. At the headwaters of the Cedar River, a record-setting flash flood occurred on July 16 and 17, which was the second flash flood in 11 days. On June 18, the U.S. Geological Survey made a measurement of an extremely high discharge of ^ O 3,250 ft /s for a 1.71-mi drainage area in the headwa- ters of a small tributary for Honey Creek in central Ohio. The 100-year recurrence-interval discharge for this site is slightly more than 1,000 ft3/s. Rainfall of 7 to 8 in. in 2 hours caused this significantly large flood. This amount of rain is well above the 3 in. cal- culated for the 2-hour, 100-year rainfall in the area (Webber and MayO', 1980). Tropical Storm Amelia brought extremely intense rains to central Texas on August 1-4. Rainfall of more than 48 in. in 72 hours occurred northwest of the town of Medina. More than 30 of the 48 in. occurred on August 2 (National Oceanic and Atmospheric Admin- istration, 1978), setting a point rainfall record for the United States. In response to the large rainfall, signifi- cant flooding occurred in the Medina River Basin. The upstream reaches of the Guadalupe and Medina Rivers had the highest floods recorded since records began for each station in 1848 and 1880, respectively. Thirty- three deaths occurred, and the damage totals for the area were estimated at $110 million (Paulson and oth- ers, 1991). Significant floods occurred from Michigan to Texas between September 11 and 14. Many areas had flash flooding as a result of storms moving through the area. Some areas received as much as 10 in. of rainfall (National Oceanic and Atmospheric Administration, 1978). The hardest hit areas were central Arkansas and northern Louisiana, and Federal disaster declarations were made for two counties in each area. Little Rock, Arkansas, received 10 to 13 in. of rain the morning of September 13 (National Oceanic and Atmospheric Administration, 1978). At several stations the 6-hour rainfall total was well above the 100-year recurrence interval. Two storms, the first from December 3 to 5 and the second from December 7 to 10, caused record flooding in Kentucky and West Virginia. Flooding was most severe in the Licking, Kentucky, Salt, and Green 34 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 '60° 150° 0 [ | ^00 MILES 0 500 KILOMETERS Pacific Ocean CANADA Red River of 1000 the North Atlantic Ocean 500 KILOMETERS Gulf of Mexico EXPLANATION 0 20 MILES 020 KILOMETERS -Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 11. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1978. Summary of Significant Floods, 1978 35 River Basins, and along the Ohio River. Maximum discharges of record were recorded at many stations in the Tygarts Creek, Kentucky River, and Salt River Basins. In West Virginia, discharges with recurrence intervals greater than 100 years were recorded in the Twelvepole Creek Basin. Total damages for the flood were estimated to be greater than $100 million in Ken- tucky and $12 million in West Virginia (Sullivan and others, 1979). The Southwest experienced recurrent flooding from November through the end of the year as a result of a persistent series of upper-level low-pressure sys- tems that developed off the southwest coast of Califor- nia. These low-pressure systems caused frequent periods of widespread and above-average precipitation in Arizona and New Mexico. Floods with recurrence intervals greater than 50 years occurred in the Gila River Basin. Selected References for 1978 Aldridge, B.N., 1982, Hydrology of the floods of March 1978 through February 1980 in the Phoenix area, Ari- zona, in Storms, floods, and debris flows in southern California and Arizona 1978 and 1980, Proceedings of Symposium, September 17-18, 1980, California Insti- tute of Technology: Washington, D.C., National Acad- emy Press, p. 87-100. Aldridge, B.N., and Eychaner, J.H., 1984, Floods of Octo- ber 1977 in southern Arizona and March 1978 in cen- tral Arizona: U.S. Geological Survey Water-Supply Paper 2223, 143 p. Aldridge, B.N., and Hales, T.A., 1984, Floods of Novem- ber 1978 to March 1979 in Arizona and west-central New Mexico: U.S. Geological Survey Water-Supply Paper 2241, 149 p. Armstrong, G.A, 1982, Coastal winter storm damage, Mal- ibu, Los Angeles County, winter 1977-78, in Storms, floods, and debris flows in southern California and Ari- zona 1978 and 1980, Proceedings of Symposium, Sep- tember 17-18, 1980, California Institute of Technology: Washington, D.C., National Academy Press, p. 423^26. Bartfield, Ira, and Taylor, D.B., 1982, A case study of a real- time flood warning system on Sespe Creek, Ventura County, California, in Storms, floods, and debris flows in southern California and Arizona 1978 and 1980, Proceedings of Symposium, September 17-18, 1980, California Institute of Technology: Washington, D.C., National Academy Press, p. 165-176. Boston Herald American, February 9, 1978, Storm souvenir edition pictorial account of the worst storm ever to hit Massachusetts: Boston, Massachusetts, Boston Herald American, 16 p. Boston State College, 1978, The blizzard of 1978, it's effects on the coastal environments of southeastern New England: Boston, Massachusetts, Proceedings of conference of May 12, 1978, 115 p. Brooks, N.H, 1982, Overview and summary, in Storms, floods, and debris flows in southern California and Ari- zona 1978 and 1980, Proceedings of Symposium, Sep- tember 17-18, 1980, California Institute of Technology: Washington, D.C., National Academy Press, p. 1-24. Chin, E.G., Aldridge B.N., and Longfield, R.J, 1991, Floods of February 1980 in southern California and central Arizona: U.S. Geological Survey Professional Paper 1494, 126 p. Davis, J.D., 1982, Rare and unusual flood events experi- enced in Los Angeles County during 1978 and 1980, in Storms, floods, and debris flows in southern California and Arizona 1978 and 1980, Proceedings of Sympo- sium, September 17-18, 1980, California Institute of Technology: Washington, D.C., National Academy Press, p. 243-256. Gadoury, R.A., 1979, Coastal flood of February 7, 1978, in Maine, Massachusetts and New Hampshire: U.S. Geo- logical Survey Water-Resources Investigations 79-61, 57 p., 2 pi. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Hoggatt, R.E., 1981, Floods of March 1978 in the Maumee River basin in northeastern Indiana: U.S. Geological Survey Open-File Report 81-695, 18 p. Hughes, P.E., Hannuksela, J.S., and Danchuk, W.J., 1981, Flood of July 1-5, 1978, on the Kickapoo River, south- western Wisconsin: U.S. Geological Survey Hydro- logic Investigations Atlas HA-653, 7 sheets, scale 1:500,000. Kuehnast, E.L., Zandlo, J.A., and Baker, D.G., 1988, Six- teen-year study of Minnesota flash floods: Minnesota Department of Natural Resources, Division of Waters and University of Minnesota, Soil Science Department, 72 p. Latkovich, V.J., 1979a, Hydrologic data for floods of July 1978 in southeast Minnesota and southwest Wisconsin: U.S. Geological Survey Open-File Report 79-1166, 29 p. 1979b, Flood of July 5-7, 1978, on the South Fork Zumbro River at Rochester, Minnesota: U.S. Geologi- cal Survey Water-Resources Investigations 79-1583, 1 sheet. 36 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Mann, L.J., and Rohne, P.B., Jr., 1983, Streamflow losses and changes in ground-water levels along the Salt and Gila Rivers near Phoenix, Arizona, February 1978 to June 1980: U.S. Geological Survey Water-Resources Investigations Report 83-4043, lip. National Oceanic and Atmospheric Administration (NOAA), 1978, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). 1979, The disasterous Texas flash floods of August 1-4, 1978: National Disaster Survey Report 79-1, 119 p. , Nelson, G.H., and Bowman, L.R., 1979, Flood of May 9, 1978, in Montgomery, Alabama: U.S. Geological Sur- vey Open-File Report 79-218,9 sheets. New England River Basins Commission, 1978, Summary of workshop on the 1978 coastal flood disaster in New England, March 30, 1978: Boston, Massachusetts, 13 p. Parrett, Charles, 1978, Floods of May 1978 in southeastern Montana and northeastern Wyoming: U.S. Geological Survey Open-File Report 78-985, 16 p. Parrett, Charles, Carlson, D.D., Craig, G.S., Jr., and Chin, E.H., 1984, Floods of May 1978 in southwestern Mon- tana and northwestern Wyoming: U.S. Geological Sur- vey Professional Paper 1244, 74 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Platt, R.H., and McMullen, George, 1978, Coastal flooding in Massachusetts, February 6-7, 1978 some prelimi- nary data: Amherst, University of Massachusetts, 9 p. Pyke, Charles, 1982, Return periods of 1977-80 precipita- tion in southern California and Arizona, in Storms, floods, and debris flows in southern California and Ari- zona 1978 and 1980, Proceedings of Symposium, Sep- tember 17-18, 1980, California Institute of Technology: Washington, D.C., National Academy Press, p. 77-86. Schroeder, E.E., Massey, B.C., and Chin, E.H, 1987, Floods in central Texas, August 1-4, 1978: U.S. Geological Survey Professional Paper 1332, 39 p. Schroeder, E.E., Massey, B.C., and Waddell, K.M., 1979, Floods in central Texas, August 1978: U.S. Geological Survey Open-File Report 79-682, 128 p. Slosson, J.E., and Krohn, J.P., 1982, Southern California landslide of 1978 and 1980, in Storms, floods, and debris flows in southern California and Arizona 1978 and 1980, Proceedings of Symposium, Septem- ber 17-18, 1980, California Institute of Technology: Washington, D.C., National Academy Press, p. 291-320. Sullivan, I.N., Quinones, F, and Flint, R.F., 1979, Floods of December 1978 in Kentucky: U.S. Geological Survey Open-File Report 79-977, 33 p. The Boston Globe, 1978, Special section on blizzard '78: Boston, Massachusetts, The Boston Sunday Globe, February 19, 1978, 24 p. U.S. Army Corps of Engineers, 1978a, Flood report of March 14-16, 1978, Chagrin and Grand Rivers, Ohio: Buffalo District, New York, 36 p. 1978b, Flood report, flood of 19 August, 1978, White Sands, New Mexico: Albuquerque District, New Mexico, 18 p. 1978c, Red River of the North, post flood report: St. Paul District, Minnesota, 60 p. 1978d, Report on floods of February and March 1978 in southern California: Los Angeles Dis- trict, California, 105 p. 1979a, Blizzard of '78, coastal storm damage study: Waltham, Massachusetts, New England Division, Mas- sachusetts, 161 p. 1979b, Flood damage report on storm and floods in Maricopa County, 28 February-6 March, 1978: Los Angeles District, California, 38 p. 1979c, Flood damage report, Phoenix metropolitan area, December 1978 flood: Los Angeles District, Cali- fornia, 41 p. 1979d, Flood of December 17-19, 1978, southwest New Mexico: Albuquerque District, New Mexico, 18 p. 1979e, Flood report of 24 September, 1978, Pre- sidio, Texas: Albuquerque District, New Mexico, 10 p. 1979f, Flood report of November 1978, Sanderson, Texas: Albuquerque District, New Mexico, lip. 1979g, Fourche Creek Basin, post disaster report, September 1978: Little Rock District, Arkansas, 14 p. 1979h, Report on the 1978 rain and snowmelt floods, San Joaquin Valley, California: Sacramento District, California, 55 p., 11 pi. 1980, Flood damage report, south-central Arizona and southwestern New Mexico, December 1978 flood: Los Angeles District, California, 39 p. -1981, Flood damage report for Frankfort, Kentucky: Louisville District, Kentucky, 83 p. Vanoni, V.A., Born, R.H., and Nouri, H.M., 1982, Erosion and deposition at a sand and gravel mining operation in San Juan Creek, Orange County, California, in Storms, floods, and debris flows in southern California and Ari- zona 1978 and 1980, Proceedings of Symposium, Sep- tember 17-18, 1980, California Institute of Technology: Washington, D.C., National Academy Press, p. 271-290. Vickers, A. A., 1980, Flood of August 31-September 1, 1978, in Cross wicks Creek basin and vicinity, central New Jersey: U.S. Geological Survey Water-Resources Investigations 80-115,43 p. Summary of Significant Floods, 1978 37 Webber, E.E., and Mayo, R.I., 1980, Flood of June 18, Wells, W.G., II, 1982, The storms of 1978 and 1980 and 1978, on Honey Creek tributary at Thornville, Ohio: their effect on sediment movement in the eastern San U.S. Geological Survey Open-File Report 80-16, 7 p. Gabriel Front, in Storms, floods, and debris flows in Weber, F.H., Jr., Treiman, J.A., Tan, S.S., and Miller, R.V., southern California and Arizona 1978 and 1980, Pro- 1979, Landslides in the Los Angeles region, Califor- ceedings of Symposium, September 17-18, 1980, Cali- nia effects of February-March 1978 rains: Sacra- fornia Institute of Technology: Washington, B.C., mento, California Division of Mines and Geology National Academy Press, p. 229-242. Open-File Report 79-4 LA, 265 p. 38 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1979 On February 20,1979, a record-breaking storm hit the Island of Hawaii and inundated the island with tor- rential rains for the following 72 hours (fig. 12). Twenty-three inches of rains fell at the Hilo Airport in 24 hours (National Oceanic and Atmospheric Admin- istration, 1979). This surpasses the previous record rainfall in 24 hours by more than 5 in. Record 48- and 72-hour rainfalls also were recorded. The resulting floods ranged in magnitude from discharges having recurrence intervals of 10 to 100 years. Runoff from the rains caused roads to be closed for several hours, caused flooded basements, and eventually ponded in low-lying areas. Streams in and around Hilo had near- record flows. Spring flooding was severe in parts of Illinois and Missouri. Nearly every stream in Illinois was above flood stage during March. Flooding was especially severe along the Rock and Kankakee Rivers. The high tributary inflow caused the Mississippi River to be 7 to 12 ft above flood stage, but the river was easily con- tained within the levees except in areas where major rivers, such as the Illinois and Missouri, flow into the Mississippi. The worst flooding since 1969 struck Minnesota late in March. Rapid snowmelt caused flooding in the Red River of the North Basin. Several floods occurred in the southeastern United States from March to May. The worst of these floods was caused by the rainfall on March 3-4 and April 11-14. On March 3-4, 10 to 14 in. of rain fell near Pensacola, Florida, as much as 12 in. fell in east- ern Mississippi, and 8 in. fell in western Alabama (National Oceanic and Atmospheric Administration, 1979). Maximum discharges of record and discharges with recurrence intervals of 100 years occurred in parts of the Tallapoosa River Basin of Georgia and Alabama. Rains on April 11-13 caused severe flood- ing in Mississippi, Alabama, and the northwest corner of Georgia. Floods reaching 50- to 100-year recur- rence intervals were recorded in the downstream reaches of the Coosa and Tallapoosa Rivers in Ala- bama. Several tributaries in the middle of the Tombig- bee River Basin and the lower half of the Black Warrior River Basin, both in Alabama, had the highest discharges in 80 to 100 years. On most streams in the northern and eastern part of the Pearl River Basin in Mississippi discharges were greater than the 100-year recurrence interval. Damages from these floods in Mississippi, Alabama, and Georgia totalled $386 million. Floods also hit the Austin-San Antonio and Houston-Galveston areas of Texas in April. These were the worst floods, in terms of water levels, number of people affected, and dollar damages, to occur in the Houston area. Tropical Storm Claudette caused severe flooding from Texas to Indiana after it made landfall in Louisi- ana on July 24. The storm caused torrential rains in 12 counties in the extreme southern corner of eastern Texas that includes the Houston and Galveston areas. Rainfall was 20 to 40 in. over the area (National Oce- anic and Atmospheric Administration, 1979). Floods occurred on many small creeks and bayous between and within the San Bernard and Trinity River Basins. Southern Indiana was also hit by remnants of Tropical Storm Claudette, which produced as much as 10 in. of rain in some areas (National Oceanic and Atmospheric Administration, 1979). Severe floods resulted, espe- cially in south-central Indiana. Three hurricanes affected the United States during late August and early September. Hurricanes David, Elena, and Frederic hit the Southeastern States, and David and Frederic also hit Puerto Rico. None of the hurricanes caused significant flooding in the continen- tal United States. However, intense thunderstorms associated with the hurricanes caused flash flooding and coastal storm surges. Puerto Rico had significant floods on some of its rivers due to Hurricane David. Floods on some of the eastern and southeastern streams in Puerto Rico were classified as 25-year floods. Floods hit Texas and Louisiana again on Septem- ber 17-25. The streams and rivers in the area were already swollen from the July floods and the rain from the hurricanes when 48 to 60 hours of continuous rain fell on coastal counties of eastern Texas and south- western Louisiana. Selected References for 1979 Edelen, G.W., Wilson, K.V., Harkins, J.R., Miller, J.F., and Chin, E.H., 1986, Floods of April 1979, Mississippi, Alabama, and Georgia: U.S. Geological Survey Profes- sional Paper 1319, 212 p. Harkins, J.R., 1980, Flood of April 12-13, 1979, in Tusca- loosa and Northport, Alabama: Geological Survey of Alabama, Map 188, 1 sheet. 1981, Flood of April 12-13, 1979, in Tuscaloosa and Northport, Alabama: U.S. Geological Survey Water-Resources Investigations/Open-File Report 81-1057, 12 p. Summary of Significant Floods, 1979 39 Aleutian Islands , Pacific Ocean CANADA Red River of 100° the North Atlantic Ocean 500 KILOMETERS Gulf of Mexico EXPLANATION Puerto Rico 0 20 MILES 020 KILOMETERS -Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 12. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1979. 40 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Hershfield, D.W., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Lee, F.N., and Arcement, G.J., Jr., 1981, Hydrologic analy- sis of Pearl River floods, April 1979 and April 1980 in Louisiana and Mississippi: Louisiana Department of Transportation and Development, Office of Highways Research Study No. 81-1-SS, 37 p. National Oceanic and Atmospheric Administration (NOAA), 1979, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). 1980, The April '79 floods of the Pearl and Tombig- bee River: National Weather Service, Natural Disaster Survey Report 80-2, 107 p. Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Platt, H., 1982, The Jackson flood of [April] 1979: Journal of the American Planning Association, v. 48, no. 2, 12 p. U.S. Army Corps of Engineers, 1979, Post disaster report on spring floods of 1979 in the Mobile District: Mobile District, Alabama, various pages. 1980, Post flood report, flood of 1979: Vicksburg District, Mississippi, various pages. Summary of Significant Floods, 1979 41 1980 The first significant floods of 1980 occurred February 13 to 21 in southern Califor- nia and Arizona (fig. 13). The floods were a result of six Pacific storms hitting the Southwest and creating an extended period of rainfall. This extended period of rainfall, not an excessive amount in one storm, caused the severe flooding. The resulting vol- umes of runoff in many streams south of Los Angeles, California, during February were the highest ever recorded. The 7-day volumes on the Salt and Verde Rivers in Arizona were the second and third highest, respectively, recorded since 1906 (Chin and others, 1991). These excessive volumes caused all the reservoirs in southern California, except Lake Henshaw in San Diego County, to have spillway releases. Seven reservoirs in Ari- zona on the Salt, Verde, and Agua Fria Rivers had spillway releases. The floods caused 18 deaths and $350 million in damages (Paulson and others, 1991). Intense rains hit Louisiana, Mississippi, and Alabama in two consecutive storms in March and April. The first storm occurred from March 26 to April 2 and struck south- eastern Louisiana and scattered areas in Mississippi. The second storm lasted from April 11 to April 13 and affected most of Mississippi and was especially intense in the area from Baton Rouge and New Orleans, Louisiana, to Mobile, Alabama. The 2-hour rainfall in Mobile on April 13 had a recurrence interval of 100 years. As a result of this rainfall, Mobile experienced the worst flash floods in the city's history. The most devastating hydrologic event during the year occurred on May 18 with the eruption of Mount St. Helens in Washington. The eruption caused very rapid melting of the mountain's snow and ice, creating severe mudflows along the North Fork Toutle, South Fork Toutle, and lower Cowlitz Rivers and throughout the Lewis River Basin in Washington. The mudflows had substantial effects on the streams and flood plains as large quantities of sediment were deposited. The mudflows deposited about 11,000 acre-ft of water, mud, and debris in Swift Reservoir on the Lewis River. The sediment that was deposited from these mudflows caused changes in the characteristics of flow in many of the streams in the area and required flood profiles to be reworked in the affected areas. The month of August brought almost continuous rain to West Virginia, southwest- ern Pennsylvania, and eastern Ohio. Many precipitation stations reported rain during almost every day from August 2 to 22, and daily totals of 2 in. or more were very com- mon. On August 9, thunderstorms produced 3.0 to 3.5 in. of rain in 1 hour over Clarks- burg, West Virginia (National Oceanic and Atmospheric Administration, 1980). Flooding was particularly severe in the town of Lost Creek, West Virginia. Hurricanes and tropical storms ravaged the coastal areas of Texas in August and September. Hurricane Alien, the first of the season, was the most intense ever recorded in both the eastern and western parts of the Caribbean Sea. The storm made landfall on August 9 in Texas, and tidal surges 10 to 20 ft above sea level were recorded along the southern coast. The tidal flooding was the worst since 1919. Tropical Storm Danielle, which made landfall in eastern Texas on September 5, did not produce the high winds and tidal flooding that Hurricane Alien did, but the storm did produce torrential rains. Urban flooding caused by the excessive rainfall was the most destructive element of this storm. Tropical Storm Jeanne in mid-November also caused coastal flooding along the entire coast of Texas with the worst flooding near Galveston. 42 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 /60° 150° Aleutian Islands , 0 | 500 MILES 0 500 KILOMETERS Cowlitz Rive South Fork-, , .^^-~.i Toutle River/ / Swift Reservoi * Lewis River ' 40' Pacific Ocean North Fork Toutle River Mount St. Helens Atlantic Ocean Atlantic Ocean -Virgin Islands EXPLANATION Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 13. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1980. Summary of Significant Floods, 1980 43 Selected References for 1980 Aldridge, B.N., 1982, Hydrology of the floods of March 1978 through February 1980 in the Phoenix area, Arizona, in Storms, floods, and debris flows in southern California and Arizona 1978 and 1980, Pro- ceedings of Symposium, September 17-18, 1980, Cali- fornia Institute of Technology: Washington, B.C., National Academy Press, 16 p. California Institute of Technology, 1982, Storms, floods, and debris flows in southern California and Arizona 1978 and 1980, Proceedings of Symposium, Septem- ber 17-18, 1980, California Institute of Technology: Washington, B.C., National Academy Press, 487 p. Chin, E.H., Aldridge, B.N., and Longfield, R.J., 1991, Floods of February 1980 in southern California and central Arizona: U.S. Geological Survey Professional Paper 1494, 126 p. Cummans John, 1981, Mudflows resulting from May 18, 1980, eruption of Mount St. Helens, Washington: U.S. Geological Survey Circular 850-B, 16 p. Gallino, G.L., andPierson, T.C., 1984, The 1980 Polallie Creek debris flow and subsequent dam-break flood, East Fork Hood River Basin, Oregon: U.S. Geological Survey Open-File Report 84-578, 37 p. Gilbert, J.J., and Froehlich, B.C., 1987, Simulation of the effect of U.S. Highway 90 on Pearl River floods of April 1980 and April 1983 near Slidell, Louisiana: U.S. Geological Survey Water-Resources Investiga- tions Report 85-4286, 47 p. Haeni, P.P., 1983, Sediment deposition in Columbia and lower Cowlitz Rivers, Washington-Oregon, caused by May 18, 1980, eruption of Mount St. Helens: U.S. Geological Survey Circular 850-K, 21 p. Hannum, C.H., and Nelson, G.H., 1980, Flood of April 13, 1980, Mobile, Alabama: U.S. Geological Survey Open-File Report 80-1183, 6 sheets. Hershfield, B.W, 1961, Rainfall frequency atlas of the United States: U.S. Bepartment of Commerce, Weather Bureau Technical Paper 40, 115 p. Jennings, M.E., Schneider, V.R., and Smith, P.E., 1981, Emergency assessment of Mount St. Helens post-erup- tion flood hazards, Toutle and Cowlitz Rivers, Wash- ington: U.S. Geological Survey Circular 850-1, 17 p. Kolva, J.R., and Koltrun, G.F, 1987, Flooding and sedimen- tation in Wheeling Creek Basin, Belmont County, Ohio: U.S. Geological Survey Water-Resources Inves- tigations Report 87-4053, 33 p. Kuehnast, E.L., Baker, B.G., and Zondlo, J.A., 1988, Six- teen-year study of Minnesota flash floods: Minnesota Bepartment of Natural Resources, Bivision of Waters, State Climatology Office and University of Minnesota, Soil Science Bepartment, 72 p. Lee, F.N., and Arcement, G.J., Jr., 1981, Hydrologic analy- sis of Pearl River floods, April 1979 and April 1980 in Louisiana and Mississippi: Louisiana Bepartment of Transportation and Bevelopment, Office of Highways Research Study No. 81-1-SS, 37 p. Lee, J.K., Froehlich, B.C., Gilbert, J.J., and Wiche, G.J., 1983, A two-dimensional finite-element model study of backwater and flow distribution at the I-10 crossing of the Pearl River near Slidell, Louisiana: U.S. Geo- logical Survey Open-File Report 82-4119, 60 p. Lipman, P.W, and Mullineaux, B.R., eds., 1981, The 1980 eruptions of Mount St. Helens, Washington: U.S. Geo- logical Survey Professional Paper 1250, 844 p. Lombard, R.E., 1986, Channel geometry, flood elevations, and flood maps, lower Toutle and Cowlitz Rivers, Washington, June 1980 to May 1981: U.S. Geological Survey, Water-Resources Investigations Report 85-4080, 34 p. Lombard, R.E., Miles, M.B., Nelson, L.M., Kresch, B.L., and Carpenter, P.J., 1981, Channel conditions in the lower Toutle and Cowlitz Rivers resulting from mud- flows of May 18, 1980: U.S. Geological Survey Circu- lar 850-C, 16 p. Mann, L.J., and Rohne, P.B., Jr., 1983, Streamflow losses and changes in ground-water levels along the Salt and Gila Rivers near Phoenix, Arizona February 1978 to June 1980: U.S. Geological Survey Water-Resources Investigations Report 83-4043, lip. National Oceanic and Atmospheric Administration (NOAA), 1980, Climatological data (by State): Ash- ville, North Carolina, National Climatic Bata Center, (various months). 1981, The disastrous southern California and central Arizona floods, flash floods, and mudslides of Febru- ary 1980: National Weather Service, Natural Bisaster Survey Report NWS-81-1, 134 p. Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, B.W, compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. U.S. Army Corps of Engineers, 1981a, Pearl River basin reconnaissance report stage 1 report: Mobile Bistrict, Alabama, 200 p. 198 Ib, Report on Hurricane Alien, 3-10 August, 1980: Galveston Bistrict, Texas, 62 p. Wahl, K.L., Crippen, J.R., and Knott, J.M., 1980, Floods of January and February 1980 in California: U.S. Geolog- ical Survey Open-File Report 80-1005, 52 p. Wesson, R.L., 1981, The eruption of Mount St. Helens entering the era of real-time geology: U.S. Geological Survey Yearbook, 1980, p. 7-15. 44 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1981 The first significant flood of 1981 was a result of rain falling on deep snow in the area from New Hampshire to eastern Pennsylvania (fig. 14). Rainfall of 1 to 4 in. occurred over the area and, along with temperatures in the 50- to 60-°F range, caused 6 to 12 in. of snow to melt. Ice jams were the major factor causing the flooding. The highest recorded stage (26.6 ft) on the Delaware River at Matamoras, Pennsylvania, was a result of a massive ice jam. Considerable spring flooding occurred in Montana during May when four extensive storms created conditions that resulted in flooding in the Helena and Continental Divide areas. Flooding occurred when excessive precipitation combined with snowmelt. At 13 streamflow-gaging stations, recurrence intervals of greater than 100 years were recorded. Near Boulder, Montana, the maximum discharge of the Boulder River was twice the previous maximum of record. These floods were some of the costliest in Mon- tana's history, with total damages exceeding $30 million (Paulson and others, 1991). A deadly flash flood struck Austin, Texas, during the night of May 24. A short, intense rainfall produced as much as 10 in. of rain in 4 hours (National Oceanic and Atmospheric Administration, 1981). Streams rose rapidly, beginning about 10:00 p.m. and peaking about midnight. The floods receded just as quickly, so most streams were at preflood levels by 3:00 a.m. The flood resulted in 13 deaths and $40 million in dam- ages (Paulson and others, 1991). The speed at which the streams rose to flood levels contributed to the number of deaths as the floods probably caught many people unaware of the danger. The summer months were plagued with floods in the North-Central States. Illinois and Indiana were the hardest hit, as rains began in May and continued through July. Flooding was widespread from Wisconsin to Kentucky, with the most severe floods in scattered areas. Thirteen counties dispersed over Illinois, Ohio, and western Pennsylva- nia were declared Federal disaster areas because of flooding in mid-June. Agriculture in Illinois and Indiana suffered substantially from the storms and resulting floods. On August 29, a tropical depression moved inland at Brownsville, Texas, and con- tinued to move up the Rio Grande Valley. By August 30, the depression reached San Antonio and, during the evening, created a line of thunderstorms that produced 8 to 12 in. of rain in the area (National Oceanic and Atmospheric Administration, 1981). Water levels on many rivers in the region were near record highs. October brought excessive rains and flooding to Texas and Oklahoma. On October 5, rainfall amounts totalling 8 in. caused severe urban flooding in Houston (National Oceanic and Atmospheric Administration, 1981). A storm produced 11 in. of rain in southern Texas on October 6 through 7. Record floods were produced in Okla- homa and Texas from a storm that lasted from October 11 to 16. In a 3-day period from October 11 to 14, 17 to 20 in. of rain fell in south-central Oklahoma and north-central Texas (National Oceanic and Atmospheric Adminstration, 1981). As a result, floods that exceeded the 100-year recurrence interval occurred in central Texas. The damage totals exceeded $115 million in Texas and Oklahoma combined (Buckner and Kurklin, 1984). Summary of Significant Floods, 1981 45 160° 150° Pacific Ocean Atlantic Ocean 160° . . 22°-»'o- Hawaii ' ^ «, °S> 1CCO 20°t? 0 100 MILES ^ 6il5o KILOMETERS MEXICO Rio Gra Gulf of Mexico 18°30' Puerto Rico __L 67° 30' EXPLANATION Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding ^-T--' r -r^ PK ° 20 MILES ^ 0 20 KILOMETERS 6-15 iy yreciLer uictii d|. interval flooding 26-35 More than 35 16-25 Figure 14. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1981. 46 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Selected References for 1981 Buckner, H.D., and Kurklin, J.K., 1984, Floods in south- central Oklahoma and north-central Texas, October 1981: U.S. Geological Survey Open-File Report 84-65, 112 p. Clement, R.W., and Johnson, D.G., 1983, Flood of June 15, 1981, in Great Bend and vicinity, central Kansas: U.S. Geological Survey Water-Resources Investigations Report 82^123, 9 p. Federal Emergency Management Agency, 198la, Post-flood recovery progress report, Barton County, cities of Great Bend, Hoisington, Pawnee Rock, Ellinwood, Albert, and other areas: FEMA-644-DR-Kansas. 198Ib, Interagency flood hazard mitigation report floods of August 10, 1981, in Clark County of Nevada: FEMA-645-DR-NV. 198 Ic, Interagency flood hazard mitigation report floods of August 30 to September 1, 1981, in Lavacu County, Texas: FEMA-646-DR-TX. -198Id, Interagency flood hazard mitigation report floods of October 10-20, 1981, in 6 counties of Oklahoma: FEMA-684-DR-OK. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Massey, B.C., Reeves, W.E., and Lear, W.A., 1982, Flood of May 24-25, 1981, in the Austin, Texas, metropolitan area: U.S. Geological Survey Hydrologic Investiga- tions Atlas HA-656, 2 sheets. Ming, C.O., and Nelson, G.H., Jr., 1981, Flood of May 5 and 6, 1981, Mobile, Alabama: U.S. Geological Sur- vey Open-File Report 81-1054, 4 p. Moore, W.L., Cook, E., Gooch, R.S., and Nordin, C.F., 1982, Austin, Texas, flood of May 24-25, 1981: Wash- ington, D.C., National Research Council, National Academy Press, 54 p. National Oceanic and Atmospheric Administration, 1981, Climatological data (by State): Ashville, North Caro- lina, National Climatic Data Center, (various months). Parrett, Charles, Omang, R.J., Hull, J.A., and Fassler, J.W, 1982, Floods of May 1981 in west-central Montana: U.S. Geological Survey Water-Resources Investiga- tions Report 82-33, 25 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Schaefer, FT., and Fish, R.E., 1983, Report of the river mas- ter of the Delaware River for the period of December 1, 1980, to November 30, 1981: U.S. Geological Survey Open-File Report 82-341, 110 p. Schultz, L.W., 1982, Central Kansas flash floods of June 1981: Bulletin of the American Meteorological Society, v. 65, no. 3, p. 228-234. Slade, R.M., Jr., Dorsey, M.E., Gordan, J.D., Mitchell, R.N., and Gay lord, J.L., 1981, Hydrologic data for urban studies in the Austin, Texas, metropolitan area, 1979: U.S. Geological Survey Open-File Report 81-628, 281 p. U.S. Army Corps of Engineers, 198la, The flood of Febru- ary 1981 village of Whitesbaro, Oneida County, New York: New York District, New York, 44 p. 1981b, The flood of February 1981 Clinton and Essax Counties, New York: New York District, New York, 90 p. .1982, Report of floods in south-central Oklahoma, October 11-16,1981, storm: Tulsa District, Oklahoma, 32 p. Webber, E.E., 1983, Flood of June 13-15, 1981, in the Blan- chard River basin, northwestern Ohio: U.S. Geologi- cal Survey Water-Resources Investigations Report 82^044, 32 p. Wells, F.C., Schertz, T.L., and Flugrath, M.W., 1985, Effects of October 1981 flood on the quantity and quality of water in selected streams and reservoirs in the Brazos River Basin, Texas: U.S. Geological Survey Water- Resources Investigations Report 84-4055, 119 p. Summary of Significant Floods, 1981 47 1982 The San Francisco Bay area of California experi- enced the first significant flooding of 1982 when an intense storm system came onshore during January 3 through 5 (fig. 15). The storm caused continuous, moderate rainfall for about 34 hours over the San Francisco Bay area. Landslides began around 9:00 a.m. on January 4 and quickly transformed to debris flows. In addition to the landslides and debris flows, flooding was considerable throughout the area. Many small streams had maximums of record, but the record lengths for streams in the area are relatively short. There were 31 deaths, and total damage from the storm was $75 million (Paulson and others, 1991). A rapid increase in temperatures caused spring snowmelt floods in Indiana, Michigan, and Ohio in March. In addition to the melting of a deep snowpack, moderate rains fell across the area, which intensified the melting. Continued periods of rain throughout the month resulted in streams sustaining high flow and causing additional maximum discharges. Recurrence intervals for maximum discharges recorded at several streamflow-gaging stations in the St. Joseph, Yellow, Maumee, and Kankakee River Basins were 50 to 100 years. On March 31, a cold front collided with warm Pacific air over central California causing 2 in. of rain to fall in San Jose during a very short period of time (National Oceanic and Atmospheric Administration, 1982). Six streams in and near San Jose overflowed and forced the evacuation of 50 homes. Some of the floodwaters were stored in the Coyote and Anderson Reservoirs upstream from San Jose, which helped reduce the severity of the flooding. Excessive rainfall fell mostly during the last 3 weeks of May and first week of June over much of western South Dakota. Spearfish received 11.22 in. of rain from May 14 to 21 and had a total of 14.31 in. for the month of May. Other rainfall amounts for May were 11.30 in. at Elm Springs, 10.70 in. at Lead and at Belle Fourche, 9.90 in. at Eagle Butte, 9.87 in. at Milesville, 9.85 in. at Wasta, and 9.53 in. at Timber Lake. Near-record stages were recorded on the Little Missouri, Moreau, Belle Fourche, Cheyenne, and White Rivers. A storm that local newspapers dubbed "the worst spring storm during the 20th century" ravaged through Connecticut, eastern New York, and central and east- ern Massachusetts on June 5 through 7. The storm pro- duced rainfall totals as high as 16 in. in Connecticut (National Oceanic and Atmospheric Administration, 1982). At several places, the rainfall recorded with the storm was the highest recorded for a non-hurricane storm. This storm resembled a "northeaster" without the cold temperatures. Almost every stream in Con- necticut flooded, with central Connecticut being the hardest hit. Eleven deaths and damages of $250 mil- lion were caused by the floods (Paulson and others, 1991). Persistent moderate to intense rains throughout May resulted in record flooding in Iowa in June and July. The floods occurred mostly in southwestern and east-central Iowa. Many streams had record dis- charges. The maximum discharges for Old Mans Creek at Highway 149 near Williamsburg were twice the 100-year recurrence-interval flood. One of the largest floods ever recorded in Iowa occurred July 3 on Cedar Creek near Bussey. The recorded discharge was more than twice that of a 100-year recurrence-interval flood. Early in the morning of July 15, an earthen dam in the Front Range of the Colorado Rocky Mountains failed, releasing 674 acre-ft of water and an estimated maximum discharge of 18,000 ft3/s down Roaring River Valley. The onslaught of water caused another dam downstream to fail also. Geomorphic and sedi- mentologic evidence suggest that this was probably the largest flood in the Roaring and Fall River Basins since the retreat of the glaciers about 10,000 years ago. Along the course of the flood, channels were widened tens of feet and either scoured or filled. An alluvial fan of 42.3 acres, containing about 226 acre-ft of material, was deposited at the month of the Roaring River. The alluvial fan dammed the Fall River, forming a lake of 17 acres upstream from the fan. Three people were killed, and total damages from the flood were esti- mated at $31 million (Paulson and others, 1991). Intense thunderstorms produced by a nearly sta- tionary weather front over Kansas City, Missouri, caused significant flooding August 12 through 13. Flash flooding was prevalent during the night and early morning hours on August 12. These floods affected much of the same area as the 1977 floods in Kansas City. Maximum discharges at several stations exceeded the discharges recorded for the 1977 flood. Four deaths occurred from the flooding, and damages were estimated at about $30 million (Paulson and oth- ers, 1991). Flood-producing thunderstorms moved through Tennessee on four separate occasions from July to 48 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 760° 150° 500 MILES _i 500 KILOMETERS San Francisco Bay San Jose Anderson Reservoi: Coyote Reservoir Pacific Ocean urcne River Spearfish ~-"7~ - > » WY Lead / ' Elm Springs ._ ^Cheyenne Atlantic Ocean -Virgin Islands EXPLANATION Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 0-5 6-15 16-25 26-35 More than 35 Figure 15. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1982. Summary of Significant Floods, 1982 49 September. On July 31, 2.5 to 6 in. of rain caused flash floods in eastern Tennessee (National Oceanic and Atmospheric Administration, 1982). Record-breaking floods in central and eastern Tennessee on August 17 resulted from rainfall that exceeded the 100-year expected rainfall. Flooding continued on August 30 through September 4 in north-central Tennessee. Water covered major highways, washed out bridges, and prompted evacuations of approximately 300 people. Remnants of Tropical Storm Chris caused torren- tial rains and flooding throughout Louisiana, Missis- sippi, Tennessee, and Kentucky on September 12. Significant flooding occurred along the Rutherford and South Forks of the Obion River and the North and Middle Forks of the Deer River in western Tennessee. On November 23, Hurricane Iwa passed 30 mi west of Kauai and became the most costly storm to hit the State of Hawaii. The Federal Emergency Manage- ment Agency (FEMA) estimated losses at $308 mil- lion. Most of the damage was a result of high tidal surges as the winds were very high, but little rain fell. Surge levels exceeded the 100-year flood, and the debris line left by the tidal surge on Kauai was as much as 900 feet inland from the boundary of the 100-year flood level shown on FEMA flood-insurance maps. Widespread flooding occurred in December 1982 and January 1983 in the Mississippi River Basin. Streams in Illinois, Missouri, Arkansas, Louisiana, Mississippi, and Tennessee were hardest hit by the floods. Flooding resulted from two main periods of intense rains; the first storm occurred from December 2 through 7 and the second from December 24 through 29. Missouri, Illinois, and Arkansas were affected by the earlier storm, and Loui- siana and Mississippi were affected by the later storm. Significant floods, many of which exceeded the 100-year recurrence intervals, occurred in Missouri in the Gasconade, Osage, Meramec, St. Francis, and Cur- rent River Basins. In Arkansas, the Buffalo River experienced record flooding. Louisiana experienced extensive flooding as well, with most of the damage occurring along the Calcasieu, Little, Black, Red, and Ouachita Rivers. Selected References for 1982 Committee on Natural Disasters, 1984, Debris flows, land- slides, and floods in San Francisco Bay Region during 1982 overview and summary of conference held at Stanford University, August 23-26,1982: Washington, D.C., National Academy Press, 83 p. Ellen, S.D., and Wieczovek, G.F., 1988, Landslides, floods, and marine effects of the storms of January 3-5, 1982, in San Francisco Bay Region, California: U.S. Geolog- ical Survey Professional Paper 1434, 310 p. Goodridge, J.D., 1982, Precipitation data supplement for the storm of San Francisco Bay Region, January 1982 overview and summary of conference held at Stanford University, August 23-26, 1982: Washington, D.C., National Academy Press, 83 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. National Oceanic and Atmospheric Administration, 1982a, Climatological data (by State): Ashville, North Caro- lina, National Climatic Data Center (various months). 1982b, Report on the San Francisco Bay area storm, January 3-5, 1982: Salt Lake City, Utah, National Weather Service, Western Region Headquarters, 39 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Saur, V.B., and Fulford, J.M., 1983, Floods of Decem- ber 1982 and January 1983 in central and southern Mississippi River Basin: U.S. Geological Survey Open-File Report 83-213, 41 p. 50 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1983 The first significant floods of 1983 occurred in California (fig. 16). Severe storms originating in the Pacific Ocean frequently hit California from January through March. Landslides were the most damaging aspect of the storms, but floods played an impor- tant part as well. On January 22 through January 29, a series of intense storms moved rapidly through the northeastern Pacific Ocean and struck the California coast with intense rains, gale-force winds, high surf, and high tides. Riverine flooding from these storms in the San Francisco Bay area produced record flooding. Severe thunderstorms originating along the central coast of the Gulf of Mexico pro- duced flood conditions for Louisiana and Mississippi on April 5. Rainfall was espe- cially excessive over the Pearl River Basin in Louisiana. The Pearl River crested above flood stage through most of its length on April 7 and stayed above flood stage through the end of April. In southern Mississippi, 8 to 14 in. of rain fell on April 5 (National Oceanic and Atmospheric Adminstration, 1983), and many creeks and rivers in this region experienced maximums of record. Additional rains on April 6 caused severe flooding on Gordon Creek and the Bouie River. Intense rainfall on April 28 through April 30 produced widespread flooding throughout Kentucky, but the most severe flooding was concentrated in the western part of the State. The rains and flooding lasted through May 4. Rainfall averaged 6 to 10 in. across most of the State (National Oceanic and Atmospheric Administration, 1983). Small streams began flooding April 30, and by May 4, larger streams also had reached flood stage. The winter of 1982-83 was among the most severe in Wyoming, Colorado, Utah, Nevada, and parts of other Western States since records began. Wet, cold weather with large accumulations of snow continued through April. A record snowpack resulted from the extended winter weather and lingered until May or early June. Temperatures stayed cold longer than normal and when they began to rise, it was a sharp and rapid increase. Several events resulted from these conditions (1) High-magnitude stream- flow, both in terms of volume and maximum discharges, occurred in most of these Western States; (2) the first required use of spillways at Hoover and Glen Canyon Dams on the Colorado River; (3) long-duration flooding along the lower Colorado River; (4) devastating landslides and debris flows in Utah and Nevada; and (5) the highest water level since 1924 in the Great Salt Lake. Significant floods occurred in southeastern Arizona from September 27 to October 3. The floods were caused by the remnant moisture from dissipating Tropical Storm Octave. The most intense rainfall was concentrated in a narrow band from south of Tucson to Clifton. Large, flat areas northwest of Tucson were inundated with flood- waters when the Santa Cruz .and Gila Rivers overtopped their banks and spread across the flood plain. Significant floods on October 17-23 occurred in southwestern and central Okla- homa. The floods were caused by remnant moisture from Hurricane Tico. The most intense rainfall was concentrated in a narrow band from Rush Springs to Shawnee. Record maximum discharges were recorded on Deep Red Run, the lower Washita River, and Elk and Walnut Creeks. Damages were estimated at $12 million (Paulson and others, 1991). Summary of Significant Floods, 1983 51 J60° 150o Pacific Ocean Atlantic Ocean 500 KILOMETERS Gulf of Mexico Puerto Rico EXPLANATION 0 20 MILES 020 KILOMETERS -Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 16. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1983. 52 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Selected References for 1983 Carlson, D.D., and Firda, G.D., 1983, Floods of April 1983 in southern Mississippi and southeastern Louisiana: U.S. Geological Survey Open-File Report 83-685, 37 p. Hauth, L.D., 1985, Floods in central, southwest Oklahoma, October 17-23, 1983: U.S. Geological Survey Open- File Report 85-494, 21 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Hjalmarson, H.W., 1984, Flood of October 1983 and history of flooding along the San Francisco River, Clifton, Ari- zona: U.S. Geological Survey Water-Resources Inves- tigations Report 85-4225-B, 42 p. National Oceanic and Atmospheric Administration (NOAA), 1983, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W, compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Roeske, R.H., Garrett, J.M., and Eychaner, J.H., 1989, Floods of October 1983 in southeastern Arizona: U.S. Geological Survey Water-Resources Investigations Report 85-4225-C, 77 p. Saur, V.B., and Fulford, J.M., 1983, Floods of Decem- ber 1982 and January 1983 in central and southern Mississippi River Basin: U.S. Geological Survey Open-File Report 83-213,41 p. Shafer, B.A., Jensen, D.T., and Jones, K.C., 1984, Analysis of 1983 snowmelt runoff production in the upper Colo- rado River basin: Sun Valley, Idaho, Western Snow Conference, 1984, Proceedings, lip. Stephens, Meredith, 1984, Final report, 1983 rain and snow- melt floods, Utah: Sacramento, California, U.S. Army Corps of Engineers, 45 p. Summary of Significant Floods, 1983 53 1984 Two major storms created flood conditions throughout March 1984 in Georgia (fig. 17). On March 5 through March 6, a storm produced flooding in southern Georgia as well as northern Florida. Floods with recurrence intervals of 50 years or more occurred on creeks in southern Georgia. A severe storm producing high winds, tornadoes, and intense rains hit Georgia on March 27 and 28. This storm pro- duced 50-year floods in southern Georgia, as well as severe coastal flooding along the Atlantic seaboard. Tides in Chesapeake Bay were 1.6 ft above the normal high tide. One of the worst floods in northern New Jersey occurred April 5 through April 7 as a result of 2 to 8 in. of rain (National Oceanic and Atmospheric Administration, 1984) combined with snowmelt and saturated soil conditions. The storm that hit the Atlan- tic seaboard at the end of March created ideal condi- tions for flooding in New Jersey. The March storm had left as much as 8 in. of snow across much of the State, and its immediate melting caused high discharges on rivers, high lake levels, and saturated soil before the April rains. Thirteen streamflow-gaging stations in the Passaic River Basin recorded new maximum dis- charges. Streamflow-gaging stations throughout north- ern New Jersey recorded discharges with recurrence intervals from 20 to 100 years. During the first week of May, a series of thunder- storms produced widespread and flash flooding throughout the Tennessee Valley and surrounding area. Eastern Kentucky was the hardest hit by the floods, but parts of Tennessee, West Virginia, and Virginia also flooded. The worst flooding in Tulsa, Oklahoma, history occurred May 26 and May 27. A series of large thun- derstorm cells developed over Tulsa and did not move for more than 7 hours. Official rainfall reports from the storms were as much as 12 in. of rain in an 8-hour period (National Oceanic and Atmospheric Adminis- tration, 1984). There were several unofficial reports of as much as 15 in. of rain (Bergman and Tortorelli, 1988). The wet winter of 1984 in the Western and West- Central States caused a large accumulation of snow in the Colorado River Basin and the Great Basin of Utah and Nevada. The spring thaw conditions were very similar to 1983, and many of the same areas flooded as a result of snowmelt. Extensive flooding occurred in the upper Missouri River Basin of southwestern Montana, the Snake River Basin of Idaho, the upper North Platte River Basin in Colorado and Wyoming, and the Colorado River Basin and the Great Basin dur- ing April, May, and June. A series of severe storms plagued the central and upper Midwest for 3 weeks starting in late May and ending in early June. Repeated and intense thunder- storms produced excessive amounts of rainfall over parts of the seven-State area of Kansas, Missouri, Iowa, Minnesota, South Dakota, Nebraska, and Wis- consin. Record and near-record streamflows occurred at several streamflow-gaging stations. Turkey Creek in Nebraska had a maximum discharge 1.3 times the esti- mated discharge of the 100-year recurrence interval. In southeastern South Dakota, the maximum discharge of the James River near Scotland also exceeded the 100-year recurrence interval. Hurricane Diana made landfall September 14 on the North Carolina coast. Coastal flooding, winds, and, in some areas, riverine flooding were severe. Riverine flooding was not uniformly severe due to the dry con- ditions prior to the hurricane and the sandy nature of the coastal plain soils, which minimized the surface runoff. Discharges recorded in south-central North Carolina did, however, reach the estimated 100-year recurrence interval. A series of thunderstorms produced record rains and severe flooding from October 18 through October 27 in parts of Texas, Louisiana, Arkansas, and Oklahoma. The most severe floods were in southern Texas and Louisiana. A strong active front became sta- tionary in southern Texas and produced record rainfall in the Corpus Christi area. Unofficial reports state that as much as 25 in. of rain fell in 3.5 hours in areas north of Corpus Christi. Long-time residents described the flooding as the worst in the area's history. Selected References for 1984 Bergman, D.L., and Tortorelli, R.L., 1988, Flood of May 26-27, 1984, in Tulsa, Oklahoma: U.S. Geologi- cal Survey Hydrologic Investigations Atlas HA-707, 1 sheet, scales 1:48,000 and 1:96,000. Engel, G.B., and Benson, R.D., 1987, Floods in eastern Nebraska and southeastern South Dakota, June 1984: U.S. Geological Survey Open-File Report 87-215, 31 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. 54 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 780- 1 50° Pacific Ocean Atlantic Ocean -Virgin Islands EXPLANATION i_ Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 6-15 16-25 Figure 17. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1984. Summary of Significant Floods, 1984 55 Lumia, Richard, Burk, P.M., and Johnston, W.H., 1987, Flooding of December 29, 1984, through January 2, 1985, in northern New York State, with flood profiles of the Black and Salmon Rivers: U.S. Geological Sur- vey Water-Resources Investigations Report 86 4191, 53 p. National Oceanic and Atmospheric Administration (NOAA), 1984, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). New Jersey Department of Environmental Protection, 1985, Flood and coastal high hazard area management, hazard mitigation plan (section 406 plan): Trenton, New Jersey Departmentof Environmental Protection, Divisions of Coastal and Water Resources, 245 p. Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, D.W, compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Philips, M.O., and Schopp, R.D., 1986, Flood of April 5-7, 1984, in northeastern New Jersey: U.S. Geological Survey Water-Resources Investigations Report 86-4423-W, 112 p. 56 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1985 Floods occurred in the Northeastern and Central States due to a series of winter storms starting in December 1984 and continuing through April 1985 (fig. 18). Alternate periods of freezing and thawing from December to April kept rivers high from Illinois to New York. Discharges on the Elkhart River at Gos- hen, Indiana (station 04100500, table 15), and on the La Moine River at Colmar, Illinois (station 05584500, table 14), were near the 100-year recurrence interval. As much as 6.9 in. of rainfall, combined with unseasonably warm temperatures and rapidly melting snow, caused extensive flooding throughout northern New York from December 29 through January 2. Maximum discharges at six streamflow-gaging sta- tions in the Black and Salmon River Basins had recur- rence intervals greater than or equal to 100 years. Cheyenne, Wyoming, had its worst flood in more than 120 years on August 1. During the afternoon, a moderate thunderstorm developed southeast of Chey- enne, but the storm increased in intensity as it moved into the city during the early evening. Torrential rain, golf-ball-sized hail, and 70-mi/hr winds were pro- duced by the storm. Seven inches of rain fell in less than 24 hours (National Oceanic and Atmospheric Administration, 1985). The discharge for Dry Creek in Cheyenne greatly exceeded the estimated 100-year recurrence interval. The flood caused 12 deaths and $61.1 million in damages (Paulson and others, 1991). The city was declared a Federal disaster area. On October 6, a tropical depression stalled and caused intense precipitation over southern Puerto Rico. As much as 24.6 in. of rain fell in a 24-hour period (National Oceanic and Atmospheric Adminis- tration, 1985). The most severe flooding occurred along the southern coast. The highest maximums of record occurred at streamflow-gaging stations on the Rio Coamo, Rio Inabon, Rio Descalabrado, Rio Camuy, Rio Cerrillos, and Rio Portugues. Most of these maximum discharges had recurrence intervals of 50 years or greater. There were many devastating land- slides that resulted from the intense rains as well. The worst landslide ravaged a populated area northwest of the city of Ponce. Deaths totalled 170, and damages of $125 million occurred (Paulson and others, 1991). The 1985 hurricane season was longer than nor- mal with six hurricanes hitting the United States. They were Hurricanes Bob, Danny, Elena, Gloria, Juan, and Kate. The first hurricane to make landfall was Hurri- cane Bob in Florida on July 23, and the last was Hurricane Kate, striking Florida, Georgia, and South Carolina on November 16. Hurricane Elena made landfall in Mississippi on September 2. Elena followed an erratic path, first entering the Gulf of Mexico heading for the Louisiana coast when it turned and threatened the Florida coast for 2 days before turning again and hitting land in Mis- sissippi. The storm quickly moved through Mississippi and Louisiana and finally dissipated over Missouri. Coastal flooding was severe in Florida. Residents of low areas were ordered to evacuate along most of the west coast of Florida. Hurricane Gloria developed off the west coast of Africa and eventually became the first hurricane to strike New England since 1960. Hundreds of thou- sands of people were evacuated from coastal areas between North Carolina and Massachusetts because of expected high winds and tidal flooding. Although tidal flooding from Gloria was severe, the riverine flooding was minor because the hurricane did not produce large amounts of rain. Similar to Hurricane Elena, Hurricane Juan fol- lowed an erratic path in the Gulf of Mexico. The storm formed in the central Gulf of Mexico on October 25, then moved northeast toward Louisiana. The storm veered toward Texas before turning back toward Loui- siana where it finally made landfall on October 29. On October 30, the storm again moved offshore and made landfall in Florida on October 31. As a result of Juan's slow meandering path, the storm produced excessive rainfall. Despite the large amount of rain, there was minimal riverine flooding in the Coastal States. Storm surges, however, caused severe coastal flooding in Louisiana and Mississippi. In November, remnants of Hurricane Juan com- bined with a low-pressure system moving in from the west and then combined with a stalled system over the Appalachian Mountains. The resultant moisture-laden weather system caused severe flooding in large areas of West Virginia and Virginia, and significant flooding in smaller parts of Maryland and Pennsylvania. New maximum discharges were recorded at 63 streamflow- gaging stations, all exceeding 100-year recurrence intervals. The flooding in West Virginia was called the worst in that State's history, with 38 lives lost and $578 million in damages. The Cheat River and South Branch Potomac River Basins were the hardest hit. Overall, the storm was the fourth most costly hurri- cane-type storm in United States history (to 1985), with 62 lives lost and $1,400 million in damages (Carpenter, 1990). Summary of Significant Floods, 1985 57 760° 150° 0 | | | | 500 MILES 0 500 KILOMETERS -IT MT ___'fOn Pacific Ocean CANADA Dry Creek I "^ IA La M -- -__^*-f Cheyenne < Kiuer <: ,' - u -i NE ;_ \L ««- ' ':¥ : . : :!;:;:;. : .1 YIIIIII|I ml ~ "" X**|y^ I________ _________\ 'I'/ . I "P- .1 S ' " ! V' «' Appalachian Mountains Atlantic Ocean 500 KILOMETERS Gulf of Mexico Ponce - EXPLANATION Puerto Rico RioCamuy/ /RioDescalabrado -Virgin Islands 0^20 MILES 020 KILOMETERsX ttfo Inabon Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Rio Cerrillos Figure 18. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1985. 58 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Selected References for 1985 Carpenter, D.H., 1990, Floods in West Virginia, Virginia, Pennsylvania, and Maryland, November 1985: U.S. Geological Survey Water-Resources Investigations Report 88-4213, 86 p. Druse, S.A., Cooley, M.E., Green, S.L., and Lowham, H.W., 1986, Flood of August 1, 1985, in Cheyenne, Wyo- ming: U.S. Geological Survey Hydrologic Investiga- tions Atlas HA-699, 2 sheets, scale 1:48,000. Federal Emergency Management Agency, 1986, Inter- agency flood hazard mitigation report: Philadelphia, Pennsylvania, February 26, 1986, p. 2, October 8, 1986, p. 1-3. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Lescinsky, J.B., 1987, Flood of November 1985 in West Virginia, Pennsylvania, Maryland, and Virginia: U.S. Geological Survey Open-File Report 86-486, 33 p. Lowham, H.W, and Druse, S.A., 1986, Storm and flood of August 1, 1985, in Cheyenne, Wyoming: U.S. Geolog- ical Survey Water-Supply Paper 2300, p. 41^2. National Oceanic and Atmospheric Administration (NOAA), 1985a, Climatological data (by State and Puerto Rico): Ashville, North Carolina, National Cli- matic Data Center, (various months). 1985b, Isohyetal map of the flood of November 1-6, 1985: Harrisburg, Pennsylvania, National Weather Service River Forecast Center, 1 sheet. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Quinones, F., and Johnson, K.G., 1987, The floods of May 17-18, 1985, and October 6-7, 1985, in Puerto Rico: U.S. Geological Survey Open-File Report 87-123, 20 p. Summary of Significant Floods, 1985 59 1986 The first significant flooding of 1986 occurred in northern and central California and western Nevada as a result of rainstorms beginning February 11 and con- tinuing through February 24 (fig. 19). The storms pro- duced widespread flooding and landslides. Record flooding occurred in three streams that drain to the southern part of the San Francisco Bay area. Large maximum discharges also occurred in the Feather and American River Basins in central California. Lake Tahoe rose 6 in/d as a result of high inflow. In Califor- nia and Nevada the floods caused 14 deaths and $379 million in damages (Paulson and others, 1991). Flooding in South Dakota that began early in March was due to near-normal winter snowfall cou- pled with carryover moisture from the previous year, as fall precipitation was 150 to 200 percent of normal over most of the State. The third week in March, a wet spring storm produced precipitation that augmented the flooding. This was followed by the wettest April on record for South Dakota (the 5.13-in. precipitation total for April 1986 far surpassed the next largest 3.87-in. total received in 1941). Thunderstorm activity continued through May, June, and July, keeping rivers and streams at high stages. An unusually wet Septem- ber (four times the usual rain for the area) again pro- duced flooding in southeastern South Dakota and caused the highest stages of the year on the lower Ver- million and Big Sioux Rivers. Intense rains, producing 8 in. in 2 hours, fell over the Pittsburgh, Pennsylvania, area on May 30 (National Oceanic and Atmospheric Administration, 1986). The rains caused severe flash floods in some Pittsburgh suburbs. The severity of the floods was increased by the area's high relief and many paved sur- faces. The maximum discharge of Little Pine Creek near Etna (station 03049800, table 39) had a recur- rence interval greater than 100 years. Several intense thunderstorm systems moved through Texas, Louisiana, and Arkansas during the last week of May and the first week of June. On May 24, severe storms caused localized flood damage in the extreme northeastern corner of Arkansas. The San Antonio, Texas, area experienced recurring flash floods from thunderstorms from May 25 through June 4. Hurricane Bonnie made landfall at the Louisi- ana-Texas border on June 26, causing high storm surges and riverine flooding due to excessive rainfall. Record snowmelt caused flooding along the east- ern slopes of the Rocky Mountains from southwestern Montana to southern Wyoming during June. The max- imum discharge of the Madison River near West Yel- lowstone, Montana (station 06037500, table 27), was the highest since records began in 1913 and had a recurrence interval greater than 100 years. Northern Utah also had flooding due to the snowmelt. Early in June, the Great Salt Lake reached its highest level in nearly 140 years of record. Several severe thunderstorms occurred in Iowa, Nebraska, and Kansas from June 29 to July 8. The rains caused flash flooding in west-central Iowa. The Blue River and its tributaries, located in southern Nebraska and northern Kansas, had considerable flooding and exceeded flood stages by as much as 12 ft. Severe thunderstorms occurred in northeastern Kansas on July 6 and 7, produced about 10 in. of rain in 24 hours (National Oceanic and Atmospheric Administration, 1986), and resulted in significant flash flooding. A severe thunderstorm hit the Milwaukee, Wis- consin, area on August 6 causing major flash floods along the Menomonee and Kinnickinnic Rivers. Rain- fall amounts for the 24-hour period totalled almost 7 in. (National Oceanic and Atmospheric Administra- tion, 1986). During the most intense period of rainfall, 1.10 in. fell in 5 minutes. On the Menomonee River, the recurrence interval for the discharge was 40 to 50 years. Property damage totalled $30 million (Wis- consin Department of National Resources, 1986; U.S. Army Corps of Engineers, 1987). Recurring thunderstorms caused record-breaking rainfalls and floods during September in Minnesota, Wisconsin, Michigan, and Illinois. Severe floods occurred September 10-15 in eastern Wisconsin and across the central part of the Lower Peninsula of Michigan. Southeastern Minnesota and western Wis- consin were affected by floods from September 20 through September 22. Flash floods occurred Septem- ber 25-28 in the Des Plaines River Basin in southeast- ern Wisconsin and northeastern Illinois. The Mississippi River was above flood stage from Wiscon- sin to southern Missouri as a result of excessive rain- fall in the upper basin. The South-Central States were affected by exces- sive rains and flooding between September 26 and October 5. The rains were the result of a nearly sta- tionary front that extended from the Texas Panhandle, through Oklahoma and southeastern Kansas, and into central Missouri. The precipitation from the front was augmented as the remnants of Hurricane Paine from 60 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 \ 40°, Feather River American River San Francisco Bay Pacific Ocean Atlantic Ocean 500 KILOMETERS Gulf of Mexico EXPLANATION Puerto Rico 6,7° 30'/66' 0 20 MILES 020 KILOMETERS -Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding O-5 6-15 16-25 26-35 More than 35 Figure 19. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1986. Summary of Significant Floods, 1986 61 the Pacific Ocean moved northeastward along the frontal boundary on October 2 and 3. Hardest hit by the flooding were areas of north-central Oklahoma and southeastern Kansas, which received more than 20 in. of rain during the 8-day period (National Oceanic and Atmospheric Administration, 1986). Severe floods also occurred in the Osage and Arkansas River Basins of Oklahoma, Missouri, and Kansas. Many streams in Oklahoma had maximum discharges with recurrence intervals of 50 to greater than 100 years, and many res- ervoirs were filled almost to capacity. The Marais des Cygnes and the Marmaton Rivers in Kansas had extremely high stages. Extensive flooding also occurred across much of Missouri as several streams in the Osage River Basin reached maximum flows that were greater than the 100-year recurrence interval. The high flow of the Missouri River, combined with the already high flow in the Mississippi River, pro- duced the fifth highest stage of record for the Missis- sippi River at St. Louis. Selected References for 1986 Balding, G.O., and Ishii, A.L., 1993, Floods of Septem- ber 26-October 4, 1986, and August 14-17, 1987, in Illinois: U.S. Geological Survey Water-Resources Investigations Report 92-^149, 105 p. Blodgett, J.C., and Lucas, J.B., 1988, Profile of Sacramento River, Freeport to Verona, California, flood of Febru- ary 1986: U.S. Geological Survey Open-File Report 88-82, 16 p. California Department of Water Resources, 1988, California highwater 1985-86: California Department of Water Resources Bulletin 69-86, 107 p. Federal Emergency Management Agency, 1986a, Inter- agency hazard mitigation report for Michigan: Chi- cago, Illinois, October 14, 1986, 28 p. 1986b, Regional disaster summary, Michigan major disaster request, September 18, 1986: 8 p. -1986c, Interagency hazard mitigation report: FEMA-782-DR-AK, Alaska, 40 p. Hauth, L.D., Walters, D.M., Cofrey, T.E., and White, O.K., 1989, Water resources data, Oklahoma, water year 1987: U.S. Geological Survey Water-Data Report OK-87-1, 324 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Jones, S.H., and Zenone, Chester, 1988, Flood of October 1986 at Seward, Alaska: U.S. Geological Survey Water-Resources Investigations Report 87^278, 43 p. Lamke, R.D., and Bigelow, B.B., 1988, Floods of October 1986 in south-central Alaska: U.S. Geological Survey Open-File Report 87-391 (revised 1988), 31 p. Mayo, L.R., 1988, Hubbard Glacier near Yukutat, Alaska the ice damming breakout of Russell Fiord/Lake, 1986, in National water summary, 1986, hydrologic events and ground-water quality: U.S. Geo- logical Survey Water-Supply Paper 2325, p. 42-49. Miller, J.B., and Blumer, Stephen, 1988, Flood of Septem- ber 10 to 15, 1986, across the central Lower Peninsula of Michigan: U.S. Geological Survey Water-Supply Paper 2325, p. 64-65. National Oceanic and Atmospheric Administration (NOAA), 1986a, Climatological data (by State): Ash- ville, North Carolina, National Climatic Data Center, (various months). 1986b, Natural disaster survey report, central region floods of September/October, 1986: Kansas City, Mis- souri, National Weather Service, 140 p. Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Seitz, H.R., Thomas, D.S., and Tomlinson, Bud, 1986, The storage and release of water from a large glacier- dammed lake Russell Lake near Yakutat, Alaska, 1986: U.S. Geological Survey Open-File Report 86-545, 10 p. Southeastern Wisconsin Regional Planning Commission, 1986, Major storm event causes flooding and local storm water drainage problems in southeastern Wis- consin: Madison, Southeastern Wisconsin Regional Planning Commission Newsletter, v. 26, no. 6, 19 p. Teets, Bob, and Young, Shelby, 1986, River of fears the Great California Flood of 1986: Terra Alta, West Vir- ginia, C.R. Publ., Inc., 128 p. U.S. Army Corps of Engineers, 1987a, Annual flood dam- age report, fiscal year 1986: U.S. Army Corps of Engi- neers Report DAEN-CWH-W, 14 p. 1987b, Report on the February 1986 floods, northern California and northwestern Nevada: Sacramento Dis- trict, U.S. Army Post Flood Report, 86 p., 7 pi. Wisconsin Department of Natural Resources, 1986, Inter- agency hazard mitigation report: Federal Emergency Management Agency 770-DR-WI, 20 p. 62 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 1987 The first significant flood of 1987 occurred in the Northeastern States and began late in March. Warm temperatures and rainfall accelerated snowmelt runoff. Three separate storms moved through the region dur- ing the first week of April. These storms caused severe flooding through Maine, New Hampshire, and Massa- chusetts (fig. 20). Sixteen streamflow-gaging stations in the three States recorded maximum discharges greater than the 100-year recurrence interval. The hardest hit areas in Maine were the Androscoggin, Kennebec, and Piscataquis River Basins. Record lake levels were reached in at least six flood-control reser- voirs in New Hampshire and Vermont. New York was affected by severe flooding along Schoharie Creek, eventually causing failure of a New York State Thru- way bridge. The bridge collapse caused 10 deaths and, during preliminary investigations, was attributed to scour around the piers (Zembrzuski, 1990). Total dam- ages were estimated at $100 million in Maine and $65 million in New York (Paulson and others, 1991). Storms brought excessive amounts of rain to Iowa, Nebraska, Kansas, and Missouri late in May. Exten- sive flash flooding and record river flooding occurred in southwestern Iowa and southeastern Nebraska on the Nishnabotna and West Nishnabotna Rivers. The same type of weather system moved into Oklahoma and Texas in late May and early June and caused severe flooding. Discharges in the Arkansas and Red River Basins in Oklahoma exceeded the 50- to 100-year recurrence intervals. Flooding continued in parts of Texas throughout June and into July with significant flooding occurring in southern Texas in mid-June. All major reservoirs in the area reached record levels. On July 16, thunder- storms moved over the San Antonio area producing excessive rainfall. Flooding was concentrated along the Guadalupe River and its tributaries. . Intense rains fell over the divide between the Ohio River and Lake Erie Basins on July 1-2. Rainfall totals were as much as 5 in. in 24 hours in some areas (National Oceanic and Atmospheric Administration, 1987). Other areas had 4 in. of rain in less than 6 hours. Flooding was most severe on the upstream reaches of the Sandusky and Scioto Rivers in Ohio. A few discharges in the area exceeded the estimated 100-year recurrence interval. Four counties in Ohio were declared Federal disaster areas, and the storm caused an estimated $20 million in damages (Mayo and Mangus, 1989). Central Minnesota was inundated by excessive rains from a succession of thunderstorms during July 20 to 24. At several locations the 100-year, 24-hour record rainfall was exceeded. Many of the suburbs of Minneapolis suffered flash floods. The worst flood in the history of Chicago, Illinois, struck on August 13 as a result of a succession of thun- derstorms that produced excessive rainfall. An official measurement of 9.35 in. in 8 hours (National Oceanic and Atmospheric Administration, 1987) was the great- est for 116 years of record collection. The northern and western metropolitan areas of Chicago bore the brunt of the storm. Significant flash flooding occurred along with general riverine flooding that persisted for many days. Maximum discharges of record occurred at several streamflow-gaging stations on the Des Plaines River and its tributaries. Ponding developed in areas that were normally drained by storm sewers. Areas of northwestern metropolitan Chicago were transformed into large shallow lakes as standing water accumulated to depths of 1 to 3 ft. Damages totalled $62.4 million (Curtis, 1990). During the first week of September, a tropical depression formed in the Atlantic Ocean and moved over South and North Carolina. Some coastal areas received more than 10 in. of rain in 3 days. Flooding occurred in many areas but was most prevalent in the vicinity of Charleston, South Carolina. The system moved into Virginia on September 5, and produced excessive rainfall that resulted in flooding. Maximum discharges at nine streamflow-gaging stations in Vir- ginia exceeded record highs. Intense rains moved into Maryland and Pennsylvania on September 8 and 9. Flooding in Pennsylvania ranged from flash floods to large-scale river flooding. A slow-moving storm system produced excessive rain in Puerto Rico in late November and early December. Severe flash floods occurred over the southeastern and eastern parts of the island. The Rio Valenciano had a discharge with a greater than 30- to 50-year recurrence interval. Damaging floods occurred in Hawaii on Decem- ber 12-13, and again on December 31 and January 1, 1988. The later period of flooding was caused by a low-pressure system that developed west of the islands and produced very intense rains as it moved eastward across the islands. Significant flooding occurred on the island of Hawaii. The U.S. Geological Survey stream- flow-gaging station on the Wailuha River at Hilo was washed away. More than 20 in. of rain in 24 hours fell Summary of Significant Floods, 1987 63 0 | | ^00 MILES 0 500 KILOMETERS Piscataquis River ennebec River Pacific Ocean West Nishnabor Des PlaJi NE RiwrvM |A Nishnabot EXPLANATION Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 0-5 6-15 16-25 26-35 More than 35 Figure 20. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1987. 64 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 over Oahu on New Year's Eve (National Oceanic and Atmospheric Administration, 1987) and produced extensive flash flooding in the valleys of that island. Total damages were estimated at $35 million. Excessive rains began on Christmas Eve in the south-central United States and continued for 4 days. The most intense rains were centered over Memphis, Tennessee. Rainfall totalled as much as 14 in. in west- ern Tennessee and 12 in. in northeastern Arkansas (National Oceanic and Atmospheric Administration, 1987). The discharges on the Bayou Meto near Lonoke and Big Creek at Goodwin, Arkansas, were between 50- and 100-year recurrence intervals. Selected References for 1987 Balding, G.O., and Ishii, A.L., 1993, Floods of Septem- ber 26-October 4,1986, and August 14-17, 1987, in Illinois: U.S. Geological Survey Water-Resources Investigations Report 92-4149, 105 p. Curtis, G.W., 1990, Flood of August 13 to 15, 1987, in Cook and Du Page Counties, Illinois, in National water summary, 1987, Hydrologic events and water use: U.S. Geological Survey Water-Supply Paper 2350, p. 49-50. Dineen, R.J., 1987, Schoharie Creek flood of April 5, 1987 a preliminary report: New York State Geologi- cal Survey Open-File Report 0604.001, 48 p. Federal Emergency Management Agency, 1987, Inter- agency hazard mitigation report: Federal Emergency Management Agency, Region 1 Hazard Mitigation Team, FEMA-788-DR-Maine, 29 p. 1988, Flood hazard mitigation plan, July 1987 flood disaster in north-central Ohio: Chicago, Illinois, Ohio Department of Natural Resources, Management Agency, Region V. Fontaine, R.A., 1987, Flood of April 1987, in Maine, Mas- sachusetts, and New Hampshire: U.S. Geological Sur- vey Open-File Report 87-460, 35 p. Fontaine, R.A., and Maloney, T.J., 1990, Flood of April 1987 in Maine, in National water summary 1987 water supply and use: U.S. Geological Survey Water-Supply Paper 2350, p. 41-44. Fontaine, R.A., and Neilson, J.P., 1994, Flood of April 1987 in Maine: U.S. Geological Survey Water-Supply Paper 2424, 50 p. Hasbrouck, Sherman, 1987, The flood of April 1987: Orono, University of Maine Land and Water Resources Center, Natural Resources Highlight Special Report, 12 p. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Mayo, R.I., and Mangus, J.P., 1989, Flood of July 1-2, 1987, in north-central Ohio: U.S. Geological Survey Open-File Report 89-376, 16 p. National Oceanic and Atmospheric Administration, 1987, Climatological data (by State): Ashville, North Caro- lina, National Climatic Data Center, (various months). National Transportation Safety Board, 1988, Collapse of the New York State Thruway (190) bridge over the Schoharie Creek, near Amsterdam, New York, April 5, 1987: Washington, D.C., National Transporta- tion Safety Board Highway Accident Report NTSB/HAR-88/02, 169 p. Neely, B.L., Jr., 1990, Flood of December 1987 in central and eastern Arkansas: U.S. Geological Survey Water- Resources Investigations Report 89-4188, 16 p. New York State Disaster Preparedness Commission, 1987, Interim report collapse of the Thruway Bridge: Albany, New York State Disaster Preparedness Com- mission, 60 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Zembrzuski, T.J., Jr., 1990, Flood-induced collapse of the New York State Thruway Bridge near Amsterdam, New York, April 5, 1987, in National water summary, 1987, Hydrologic events and water use: U.S. Geologi- cal Survey Water-Supply Paper 2350, p. 45-48. Summary of Significant Floods, 1987 65 1988 Many areas throughout the United States were affected by drought conditions in 1988. There were few significant widespread floods (fig. 21). A few flash floods occurred during the summer months due to localized, intense rains from thunderstorms. Several flash floods occurred during the summer. On April 1 and 2, southern Kansas received 3 to 7 in. of localized rain (National Oceanic and Atmospheric Administration, 1988), which caused flash floods. New Orleans, Louisiana, received 7 to 9 in. of rain on April 1 and 2 (National Oceanic and Atmospheric Administration, 1988). Severe flooding occurred, and $18 million in dam- ages resulted. Albuquerque, New Mexico, had $3 million in damages as a result of flash flooding on July 5-9. Tropical Storm Beryl hit Louisiana and Mississippi in early August. The storm brought as much as 15 in. of rain to coastal counties of Mississippi (National Oceanic and Atmospheric Administration, 1988). Significant flooding occurred on the Biloxi River in Mississippi. Hurricane Gilbert, the first category five hurricane to make landfall since 1969, struck Louisiana and Texas on September 15 through 19. The storm caused coastal floods in Louisiana and produced excessive rains across Texas and Oklahoma. Selected References for 1988 Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Com- merce, Weather Bureau Technical Paper 40, 115 p. National Oceanic and Atmospheric Administration (NOAA), 1988, Climatological data (by State): Ashville, North Carolina, National Climatic Data Center, (various months). Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. U.S. Army Corps of Engineers, 1988, Storm of May 30, 1988, Clovis, New Mexico: Albuquer- que District, New Mexico. 66 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 760° 150° 0 _ t | | 500 MILES 0 500 KILOMETERS Pacific Ocean Atlantic Ocean 500 KILOMETERS Gulf of Mexico EXPLANATION Puerto Rico 0 20 MILES hV 020 KILOMETERS Virgin Islands Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 26-35 More than 35 Figure 21. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1988. Summary of Significant Floods, 1988 67 1989 The first significant floods of 1989 struck the Ohio and middle Mississippi River Basins in February (fig. 22). Severe flooding occurred in Kentucky, Tennessee, and Ohio on February 12-16. Additional floods occurred in the same area on March 4-6. The Hatchie River in Tennessee was above flood stage for 3 months during late winter and early spring. Severe floods struck central Indiana and southwestern Ohio late in May. A maxi- mum of record occurred on Seven Mile Creek at Camden, Ohio. Numerous minor flash floods occurred at many locations in the United States throughout the months of June and July. Nearly all of them were due to intense rains that fell during short periods of time from thunderstorms, resulting in rapid rises on riv- ers and streams. Flash flooding was intensified in urban areas because large areas of impervious surfaces increase runoff. Tropical Storm Allison brought extensive rains to southeastern Texas, Louisiana, and Oklahoma in late June and early July. Significant flooding was reported throughout Texas and Louisiana. The storm made landfall northeast of Galveston and moved north- eastward through eastern Texas and western Louisiana. Remnants of the storm pro- duced flood-causing rains in New Jersey, Pennsylvania, Delaware, and Maryland. Hurricane Hugo caused severe coastal and riverine flooding during September. Before striking the southeastern United States, Hugo devastated the Virgin Islands and eastern Puerto Rico with coastal flooding due to storm surges of as much as 11 ft and riverine flooding from more than 10 in. of rain in a 2-day period. When the hurricane hit South Carolina, storm surges of as much as 20 ft flooded the coastal areas. The hurri- cane killed 26 persons and caused $9 billion in damages (National Oceanic and Atmo- spheric Administration, 1990). Selected References for 1989 Federal Emergency Management Agency, 1989a, Interagency flood hazard mitigation report floods of January 1, 1989, in the Virgin River of Utah: FEMA-820-DR-UT. 1989b, Interagency flood hazard mitigation report floods of January 13 to March 8, 1989, in 65 counties of Kentucky: FEMA-821-DR-KY, 17 p. 1989c, Interagency flood hazard mitigation report floods of March 29 to April 30, 1989, in the Red River of the North Basin in Minnesota and North Dakota: FEMA-824-DR-MN and FEMA-825-ND, 27 p. 1989d, Interagency flood hazard mitigation report floods of March 28-29, 1989, in 9 counties of extreme northeastern Texas: FEMA-823-DR-TX, 27 p. 1989e, Interagency flood hazard report floods of May 4 to June 7, 1989, in 87 counties of Texas: FEMA-828-DR-TX. 1989f, Interagency flood hazard mitigation report floods of May 1989, in 30 counties of Louisiana: FEMA-829-DR-LA. 1989g, Interagency flood hazard mitigation report floods of May 5-13, 1989, in 4 counties of Maine: FEMA-830-DR-ME. 1989h, Interagency flood hazard mitigation report floods of May to June 1989 ice break up, in central Alaska: FEMA-832-DR-AK, 41 p. 1989i, Interagency flood hazard mitigation report floods of May 23-26,1989, in 13 counties of Ohio: FEMA-831-DR-OH. 1989J, Interagency flood hazard mitigation report floods of June 15 to July 16, 1989, in 12 counties of Kentucky: FEMA-834-DR-KY. -1989k, Interagency flood hazard mitigation report floods of June 14-15, 1989, as a result of Tropical Storm Allison, in 9 counties of Texas: FEMA-836-DR-TX, 46 p. 68 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 0 t | | | 500 MILES 0 500 KILOMETERS Pacific Ocean Atlantic Ocean -Virgin Islands EXPLANATION Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding 0-5 6-15 16-25 26-35 More than 35 Figure 22. Percentage of streamflow-gaging stations in each State or territory recording greater than approximate 20-year recurrence-interval flooding during 1989. Summary of Significant Floods, 1989 69 19891, Interagency flood hazard mitigation report floods of August 4-5, 1989, in north-central Vermont: FEMA-840-DR-VT, 20 p. 1989m, Interagency flood hazard mitigation report floods of September 17-18, 1989, from Hurri- cane Hugo in the Virgin Islands: FEMA-841-DR-VI, 46 p. 1989n, Interagency flood hazard mitigation report floods of September 21-22, 1989, due to Hur- ricane Hugo, in 29 counties of North Carolina: FEMA-844-DR-NC. 1989o, Interagency flood hazard mitigation report floods of October 16-17, 1989, in 11 counties of Kentucky: FEMA-846-DR-KY, 22 p. 1990a, Interagency flood hazard mitigation report floods of October 15-20, 1989, in Buchanan County of Virginia: FEMA-847-DR-VA, 10 p. 1990b, Interagency flood hazard mitigation report floods of November 7-9, 1989, in 3 parishes of Louisiana: FEMA-849-DR-LA. 1991, Interagency flood hazard mitigation report floods of June 25 to July 21, 1989, as a result of Tropical Storm Allison, in 19 counties of Louisiana: FEMA-835-DR-LA, 33 p. Graham, Frank, Jr., 1990, In Hugo's wake: American For- ests, v. 96, no. 1-2, January-February 1990, p. 17. Hall, M.J., Young, R.S., Thieler, E.R., Priddy, R.D., and Pilkey, O.H., Jr., 1990, Shoreline response to Hurri- cane Hugo: Journal of Coastal Research, v. 6, January 1990, p. 211-221. Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Commerce, Weather Bureau Technical Paper 40, 115 p. Janiskee, R.L., 1990, Storm of the century Hurricane Hugo and its impact on South Carolina: Southeastern Geographer, v. 30, January 1990, p. 63-67. National Oceanic and Atmospheric Administration, 1989, Climatological data (by State): Ashville, North Caro- lina, National Climatic Data Center, (various months). 1990, National disaster survey report Hurricane Hugo, September 10-22, 1989: National Weather Ser- vice, 68 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., 1991, compilers, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Powell, M.D., and Black, P.G., 1990, Meteorological aspects of Hurricane Hugo's landfall in the Carolinas: Shore and Beach, v. 58, no. 4, October 1990, p. 3. Quinones, F, and Gamble, C.R., 1990, Floods of February 1989 in Tennessee: U.S. Geological Survey Water-Resources Investigations Report 89-4207, 15 p. Schuck-Kolben, R. Erik, and Kaufman, Lionel, 1991, Storm surge flooding by Hurricane Hugo on the U.S. Virgin Islands, Puerto Rico, and South Carolina, Sep- tember 1989, in Paulson, R.W, Chase, E.B., Roberts, R.S., Moody, D.W, compilers, National water sum- mary, 1988-89 Hydrologic event and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, p. 59-64. Talley, J.H., 1989, The storm of July 5, 1989, hydrologic conditions: Newark, University of Delaware, Delaware Geologic Survey Open-File Report 31, 29 p. Whistler, H., 1990, Hurricane Hugo September 1989: Weather, v. 45, February 1990, p. 59-60. 70 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Significant Floods, 1970 Through 1989, By State or Territory In addition to the specific flood data, this section provides a description of the hydroclimatology and a sum- mary of significant floods for each State or territory in the United States. The summary of significant floods includes those with loss of life or excessive damage during the period 1970 through 1989. The floods that were in the top 5 percent of each streamflow-gaging station's record during this period are tabulated, and an estimated recurrence interval is provided along with other pertinent data. A map of each State or territory is supplied to locate the streamflow-gaging stations. Alabama Hydroclimatology Alabama is located in the southeastern United States and is bordered on the south by the Gulf of Mexico. The principal sources for the State's moisture are the Gulf of Mexico and the subtropical Atlantic Ocean (Paulson and others, 1991). Winter precipita- tion results from frontal systems and cyclone develop- ment in the Gulf. Summer precipitation results from thunderstorms and, occasionally, tropical storms and hurricanes. Mean annual precipitation ranges from about 50 in. in the northern part of the State to about 65 in. in the southern part. The statewide mean annual rainfall is about 55 in. (Paulson and others, 1991). Significant floods in Alabama typically result from precipitation and high coastal waters associated with hurricanes, tropical storms, and tropical depres- sions; thunderstorms; and slow-moving or stationary frontal systems. The chance for flooding increases in the spring when the ground is already saturated with previous rain causing the runoff to be greater. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for rural Alabama streams is dependent on drainage area and storage, which is the percentage of the basin occupied by swamps, ponds, or reservoirs. For urban areas, maximum discharge depends on drainage area and percentage of the basin underlain by impervious surface (Jennings and others, 1994). Significant Floods The flood of March and April 1979 was the most extensive in Alabama during 1970-89. Twenty- eight percent of the streamflow-gaging stations in the State recorded significant discharges at this time. Cen- tral Alabama was the most severely affected. The flooding was caused by a series of early spring storms in the region that produced extremely moist soil condi- tions. The average rainfall during the flood was more than 8 in. in the Tombigbee River Basin, and the maxi- mum was 17.3 in. at Pickensville (Paulson and others, 1991). The combined flow of the Tombigbee and the Black Warrior Rivers produced the largest known flood since 1874. Maximum discharges were the larg- est of record on the Sucarnoochee River at Livingston (station 2467500, fig. 23). Torrential rains during a 48-hour period produced- the flood of 1973. Eleven percent of the streamflow- gaging stations recorded significant discharges. This flood caused severe flooding in the upper Tombigbee and Tennessee River Basins. Rainfall was greatest in northwestern Alabama, as Hamilton received 10.5 in. (Paulson and others, 1991). This flood was the largest of record for the Flint River near Chase (station 3575000, fig. 23). Maximum discharges had greater than the 100-year recurrence interval on the Buttahatchee River, a major tributary to the upper Tombigbee River. The location of streamflow-gaging stations in Ala- bama that had significant floods for 1970-89 is shown in figure 23 by station number. The specific data for each significant flood are listed in table 2. A signifi- cant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Alabama 71 0 20 40 60 KILOMETERS EXPLANATION 02376500 IE: Streamflow-gaging station and number GULF OF MEXICO Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' Figure 23. Location of streamflow-gaging stations with significant floods during 1970-89 for Alabama. 72 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 2. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alabama [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; , not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1995 Station number (fig. 23) 02342933 02343300 02358785 02362610 02363000 02363055 02364000 02364500 02365310 02367500 02371200 02371500 02374970 02376500 02378500 02399200 02400033 02400100 02401370 02401390 02401620 02403500 Station name South Fork Cowikee Creek near Batesville, AL Abbie Creek near Haleburg, AL Cowarts Creek at State Route 53 near Cottonwood, AL Pea River near Midway, AL Pea River near Ariton, AL Moores Branch near Victoria, AL Pea River at Elba, AL Pea River near Samson, AL Grants Branch tributary near Fadette, AL Lightwood Knot Creek at Babbie, AL Indian Creek near Troy, AL Conecuh River at Brantley, AL Sizemore Creek near Robinsonville, AL Perdido River at Barrineau Park, FL Fish River near Silverhill, AL Little River near Blue Pond, AL Nances Creek near White Plains, AL Terrapin Creek at Ellisville, AL Big Canoe Creek near Springville, AL Big Canoe Creek at Ashville, AL Coosa River at H. Neely Henry Dam near Ohatchee, AL Coldwater Spring near Anniston, AL Total drainage area (mi2) 112 146 103 18.7 498 2.17 959 1,182 1.44 114 8.87 500 79.4 394 55.3 199 4.62 252 45.0 141 6,596 - Period of record 1964-95 1958-94 1971-80, 1994 1973-82, 1990, 1994 1929, 1939-95 1973-82 1929, 1936-55, 1972-95 1905-13, 1923-25, 1929, 1936-70, 1975 1972-81 1944-72, 1975, 1990 1959-86, 1990, 1994 1929, 1938-95 1971-81 1929, 1942-95 1954-69, 1971, 1987-95 1948, 1958-95 1971-81 1963-95 1979-94 1966-95 1966-79 1945, 1946, 1958-95 Water year 1990 1994 1975 1975 1929 1974 1929 1929 1973 1990 1975 1990 1929 1980 1955 1929 1989 1985 1974 1979 1983 1979 1979 1976 Stage (ft) 43.40 37.00 12.59 14.75 25.00 4.40 43.50 45.30 9.80 15.73 7.75 24.44 26.00 29.81 23.94 25.70 19.28 16.98 7.53 19.82 12.79 18.75 .. - Dis- charge (tl3/s) 28,200 35,000 14,400 5,350 53,000 510 90,000 85,000 1,360 26,000 3,950 25,700 25,000 10,400 39,000 -- 14,300 53,800 1,430 20,100 4,870 13,600 93,700 66 Significant floods during 1970-89 Date (month/ day/year) 2/17/75 3/31/70 4/10/75 2/17/75 2/18/75 12/31/73 2/19/75 4A-/73 9/10/73 4/13/75 2/17/75 2/19/75 4/13/80 4/09/83 6/09/89 7/24/85 4/04/74 3/04/74 3/04/79 12/01/82 4/13/79 4/13/79 4/01/76 Stage (ft) 37.08 23.84 12.59 14.75 24.38 4.40 37.26 - 9.80 14.70 7.75 24.51 29.81 20.86 19.28 16.98 7.53 19.07 19.82 12.79 18.75 ._ - Dis- charge (ft3/s) 18,100 7,590 14,400 5,350 47,600 510 39,000 32,000 1,360 21,600 3,950 19,800 10,400 24,100 14,300 53,800 1,430 16,700 20,100 4,870 13,600 93,700 66 Regu- lated during flood1 N N N N N N Y Y N N N N N N N N N N N N N Y N Recur- rence interval (years) 50 25 10-25 50-100 >100 2-5 25 15 25-50 50-100 50-100 25 10-25 25-50 25-50 >100 10-25 10-25 25-50 10-25 100 .. - Significant Floods, 1970 Through 1989, Alabama 73 Table 2. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alabama Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 23) 02404000 02404400 02405200 02405500 02405800 02407000 02407680 02407950 02408500 02409400 02411000 02411600 02412000 02412050 02412500 02413300 02413400 02413475 02413500 02414765 02414800 02415000 02418500 Station name Choccolocco Creek near Jenifer, AL Choccolocco Creek at Jackson Shoal near Lincoln, AL Coosa River at Logan Martin Dam near Vincent, AL Kelly Creek near Vincent, AL Talladega Creek above Talladega, AL Coosa River at Childersburg, AL Waxahatchee Creek near Columbiana, AL Coosa River at Lay Dam near Clanton, AL Hatchet Creek near Rockford, AL Coosa River at Mitchell Dam near Verbena, AL Coosa River at Jordan Dam near Wetumpka, AL Coosa River at Wetumpka, AL Tallapoosa River near Heflin, AL Cane Creek at U.S. Highway 78 near Heflin, AL Tallapoosa River near Ofelia, AL Little Tallapoosa River near Newell, AL Wedowee Creek above Wedowee, AL Wedowee Creek near Wedowee, AL Little Tallapoosa River near Wedowee, AL Enitachopco Creek below Ashland, AL Harbuck Creek near Hackneyville, AL Hillabee Creek near Hackneyville, AL Tallapoosa River below Tallassee, AL Total drainage area (mi2) 277 481 7,743 193 69.6 8,392 32.9 9,053 233 9,778 10,102 10,148 448 52.8 792 406 6.87 46.6 591 26.2 7.97 190 3,328 Period of record 1904-07, 1930-70, 1979 1961-71, 1975-95 1965-79 1952-70, 1979, 1987-95 1958-70 1914-95 1972-82 1963-79 1945-79 1938-63, 1965, 1967-77, 1979 1913-14, 1927-95 1893-95 1953-95 1972-82 1920, 1939-70, 1979 1976-95 1960-72, 1979 1951-75, 1979 1919, 1938-70, 1979 1972-81 1951-70, 1979 1953-73, 1979, 1986-95 1920, 1929-95 Water year 1979 1963 1979 1979 1970 1979 1970 1977 1979 1979 1979 1979 1938 1977 1977 1920 1976 1979 1979 1919 1979 1979 1979 1920 1929 Stage (ft) 17.85 39.98 27.39 12.70 28.99 16.32 -- 31.83 47.67 57.9 31.34 12.55 21.00 18.18 8.22 14.10 23.00 15.38 11.87 28.10 51.35 Dis- charge (ft3/s) 23,000 36,900 115,000 33,400 6,550 150,000 94,600 8,320 196,700 66,000 281,000 316,000 32,500 9,650 41,000 14,100 1,900 4,870 30,000 8,820 6,260 26,400 177,000 115,000 Significant floods during 1970-89 Date (month/ day/year) 4/13/79 3/30/77 4/15/79 4/13/79 3/19/70 4/14/79 3/29/77 4/13/79 4/13/79 4/13/79 4/13/79 1/11/72 3/31/77 3/29/77 3/--T77 3/16/76 4/13/79 4/13/79 3/-/76 3/--T77 3/04/79 4/14/79 4/14/79 4/14/79 Stage 17.85 39.54 27.39 12.70 28.99 16.32 -- 31.83 47.67 44.60 31.34 12.55 18.18 8.22 14.10 15.38 11.87 28.10 8.63 Dis- charge 23,000 35,800 115,000 33,400 6,550 150,000 8,320 196,700 66,000 281,000 316,000 32,500 9,650 39,600 14,100 1,900 4,870 30,000 27,800 8,820 6,260 26,400 128,000 Regu- lated during flood1 N N Y N N Y N Y N Y Y Y N N N Y N N N N N N N Y Recur- rence interval (years) 20 25 50-100 5-10 50 10-25 -- >100 75-100 100 25-50 50 10-25 50 10-25 50 25 25-50 >100 >100 25 74 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 2. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alabama Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 23) 02419890 02419988 02421256 02421351 02422500 02423000 02423380 02423555 02423630 02424940 02425200 02425500 02426000 02427300 02427700 02428300 02429595 02429650 02437800 02438000 02439000 02443230 02444000 02444500 02445000 Station name Tallapoosa River near Montgomery- Montgomery Water Works, AL Alabama River at Montgomery, AL Swift Creek near Vida, AL Alabama River below Robert F Henry Lock and Dam near Benton, AL Mulberry Creek at Jones, AL Alabama River at Selma, AL Cahaba River near Mountain Brook, AL Cahaba River near Helena, AL Shades Creek near Greenwood, AL Oakmulgee Creek near Augustin, AL Big Swamp Creek near Orrville, AL Cedar Creek at Minter, AL Boguechitto Creek near Browns, AL Prairie Creek near Oak Hill, AL Turkey Creek at Kimbrough, AL Tallatchee Creek near Vredenburgh, AL Little River near Uriah, AL Majors Creek at State Highway 59 near Tensaw, AL. Barn Creek near Hackleburg, AL Buttahatchee River below Hamilton, AL Buttahatchee River near Sulligent, AL Mud Creek near Ferabank, AL Coal Fire Creek near Pickensville, AL Tombigbee River near Cochrane, AL Lubbub Creek near Carrollton, AL Total drainage area (mi2) 4,646 15,023 89.4 16,233 203 17,095 140 335 72.3 220 35.8 211 95.4 10.3 97.5 13.2 99.2 44.4 13.1 277 472 35.8 126 5,940 112 Period of record 1973-95 1890-95 1971-81 1972-95 1938-84, 1986-95 1886, 1891-95 1979, 1981, 1985-95 1965, 1967-73, 1975-81 1965-81 1976-87 1973-85 1953-82 1943-58, 1960-73, 1979 1960-74 1958-95 1959-74 1969-79 1971-81 1959-73 1951-73, 1975-95 1939-60, 1972-85 1972-83 1955-80 1892, 1939-79, 1982-95 1955-67, 1969, 1979 Water year 1973 1979 1979 1979 1938 1961 1979 1976 1979 1979 1979 1975 1943 1972 1962 1972 1974 1980 1973 1973 1973 1979 1979 1892 1979 Stage (ft) 31.40 51.80 63.93 133.00 33.60 57.97 20.60 34.85 13.19 19.53 14.05 26.53 20.70 15.00 25.02 13.27 16.14 16.29 14.76 35.49 17.31 34.91 11.74 50.20 16.00 Dis- charge (ft3/s) -- 20,200 48,000 284,000 19,000 22,800 10,900 12,900 3,330 99,800 19,000 1,860 39,600 9,650 12,500 5,660 5,160 49,500 60,100 4,650 16,400 255,000 19,200 Significant floods during 1970-89 Date (month/ day/year) 4/02/73 4/16/79 3/04/79 4/18/79 4/14/79 4/18/79 4/13/79 3/16/76 4/13/79 3/05/79 4/04/79 2/17/75 3A-/76 3/02/72 3/04/79 3/01/72 9/08/74 4/13/80 3/16/73 3/16/73 3/17/73 4/13/79 4/13/79 3/21/73 4/13/79 Stage (ft) 31.40 51.80 63.93 133.00 25.26 55.02 20.60 34.85 13.19 19.53 14.05 26.53 ~ 15.00 23.37 13.27 16.14 16.29 14.76 35.49 17.31 34.91 11.74 47.37 16.00 Dis- charge (ft3/s) -- 20,200 " 21,800 211,000 19,000 22,800 10,900 12,900 3,330 99,800 17,000 1,860 20,000 9,650 12,500 5,660 5,160 49,500 60,100 4,650 16,400 166,000 19,200 Regu- lated during flood1 Y Y N Y N Y N N N N N N N N N N N N N N N N N Y N Recur- rence interval (years) -- 10-25 " 25 35 -- 10-25 -- 10-25 10-25 >100 50 10-25 25-50 >50 >50 10-25 25-50 >100 >100 10-25 50-100 " >50 Significant Floods, 1970 Through 1989, Alabama 75 Table 2. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alabama Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 23) 02445245 02446500 02448500 02449000 02449245 02449500 02450000 02450250 02453000 02454200 02456000 02456330 02457000 02457700 02458450 02460500 02461500 02462000 02462500 02462600 02462951 02464146 02465000 Station name New River near Winfield, AL Sipsey River near Elrod, AL Noxubee River near Geiger, AL Tombigbee River at Gainesville, AL Brush Creek near Eutaw, AL Tombigbee River at Epes, AL Mulberry Fork near Garden City, AL Sipsey Fork near Grayson, AL Blackwater Creek near Manchester, AL Wolf Creek near Oakman, AL Turkey Creek at Morris, AL Crooked Creek near Morris, AL Fivemile Creek at Ketona, AL Fivemile Creek at Linn Crossing, AL Village Creek at Avenue W at Ensley, AL Village Creek near Adamsville, AL Valley Creek near Bessemer, AL Valley Creek near Oak Grove, AL Black Warrior River at Bankhead Lock and Dam near Bessemer, AL Blue Creek near Oakman, AL Black Warrior River at Holt Lock and Dam near Holt, AL Turkey Creek near Tuscaloosa, AL Black Warrior River at Northport, AL Total drainage area (mi2) 59.3 528 1,097 8,632 43.2 8,930 365 92.1 181 85.0 80.9 16.2 23.9 96.2 33.5 83.5 52.5 148 3,979 5.32 4,219 6.16 4,820 Period of record 1951-73 1930-32, 1940-71, 1979-95 1929-95 1892, 1939-81, 1983-91 1971-73, 1975-95 1901, 1905-13, 1939-45, 1979, 1990-95 1929-95 1967-95 1939-71, 1979-82, 1989-95 1958-70, 1979 1943-79 1976-88 1954-79 1965-75 1976-79, 1989-95 1954-58, 1965, 1973-81 1976-79, 1989-95 1916, 1936, 1954-95 1929-36, 1977-95 1960-73, 1977-84 1977-95 1981-84, 1987-95 1900, 1929-95 Water year 1973 1961 1979 1979 1892 1979 1990 1979 1990 1973 1961 1970 1970 1983 1970 1970 1977 1970 1979 1984 1979 1970 1979 1984 1984 1979 1900 Stage (ft) 24.30 18.83 48.58 56.28 58.40 22.68 23.54 55.77 25.04 44.27 13.10 26.50 23.12 23.49 14.94 21.73 13.26 23.15 17.06 33.98 82.10 7.70 190.19 11.98 66.85 67.70 Dis- charge (ft3/s) 7,970 27,800 156,000 261,000 250,000 8,560 7,950 247,000 66,500 20,300 10,600 15,000 15,600 10,600 4,970 14,500 5,730 19,700 11,300 32,000 143,000 4,250 178,000 158,000 3,500 272,000 215,000 Significant floods during 1970-89 Date (month/ day/year) 3/16/73 4/13/79 4/14/79 5/22/83 3/23/73 4/15/79 4/13/79 4/16/79 1/03/82 3/16/73 4/14/79 3/20/70 3/19/70 5/19/83 3/19/70 3/20/70 9/07/77 3/19/70 4/13/79 12/04/83 4/13/79 3/19/70 4/13/79 12/03/83 4/13/79 12/03/84 Stage (ft) 24.30 17.85 48.58 41.38 54.21 56.28 22.68 55.77 22.45 44.27 11.69 26.50 23.12 23.49 14.94 21.73 13.26 23.15 17.06 33.98 82.10 7.70 .. 11.98 66.85 -- Dis- charge (frVs) 7,970 23,100 156,000 34,400 172,000 261,000 8,560 247,000 52,100 20,300 8,550 15,000 15,600 10,600 4,970 14,500 5,730 19,700 11,300 32,000 143,000 4,250 178,000 3,500 272,000 271,000 Regu- lated during flood1 N N N N Y Y N Y N N N N N N N N N Y N N Y N Y N Y Y Recur- rence interval (years) 10-25 10-25 >100 -- - -- 25-50 _. 40 50-100 25 25-50 40 25-50 - >50 - - 50-100 25-50 10-25 10-25 >100 76 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 2. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alabama Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 23) 02465205 02466000 02466030 02467000 02467050 02467500 02468000 02468500 02469550 02469761 02469800 02470630 02471065 02479431 03574500 03574796 03575000 03575500 03575700 03575830 03575980 03576250 03576500 Station name Jay Creek near Coker, AL Black Warrior River near Eutaw, AL Black Warrior River at Selden Lock and Dam near Eutaw, AL Tombigbee River at Demopolis Lock and Dam near Coatopa, AL Tombigbee River at U.S. Highway 80 near Coatopa, AL Sucarnoochee River at Livingston, AL Alamuchee Creek near Cuba, AL Chickasaw Bogue near Linden, AL Horse Creek near Sweet water, AL Tombigbee River at Coffeeville Lock and Dam near Coffeeville, AL Satilpa Creek near Coffeeville, AL Mobile River at Barry Power Plant Bucks, AL Montlimar Creek at U.S. Highway 90 at Mobile, AL Pond Creek near Deer Park, AL Paint Rock River near Woodville, AL Walker Branch near Plevna, AL Flint River near Chase, AL Tennessee River at Whitesburg, AL Aldridge Creek near Parley, AL Indian Creek near Madison, AL Mcdonald Creek at Patton Road near Huntsville, AL Limestone Creek near Athens, AL Flint Creek near Falkville, AL Total drainage area (mi2) 3.65 5,792 5,810 15,385 15,500 607 62.3 257 60.4 18,417 164 43,000 8.57 20.4 320 0.44 342 25,610 14.10 49.0 9.02 119 86.3 Period of record 1964-71, 1973-74 1933-57, 1961, 1977-81 1977-95 1929-95 1893-16, 1918-29, 1979-80 1939-76, 1978-95 1955-70, 1979 1944-46, 1966-91 1958-79 1874, 1961-95 1956-95 1951, 1953-95 1963-67, 1975-83 1977-95 1936-95 1902-75 1929-81, 1983-94 1867, 1925-36, 1938-95 1961-64, 1985-95 1960-95 1985-94 1940-82, 1984-85, 1992-95 1953-73, 1991, 1993-95 Water year 1971 1979 1961 1979 1979 1979 1979 1979 1979 1945 1979 1979 1956 1961 1981 1983 1973 1973 1973 1991 1973 1867 1988 1973 1988 1973 1973 1991 Stage (ft) 7.20 60.30 58.87 37.03 - 33.47 18.87 30.18 30.33 18.66 65.46 18.37 18.19 13.17 21.00 24.40 8.67 29.52 31.04 26.06 31.40 10.95 12.70 9.63 17.28 15.85 19.28 Dis- charge (ft3/s) 1,470 222,000 213,000 222,000 343,000 343,000 62,200 14,700 38,700 33,000 28,100 290,000 25,600 539,000 5,530 3,780 74,200 276 104,000 87,300 323,000- 3,660 16,500 5,100 45,800 12,500- Significant floods during 1970-89 Date (month/ day/year) 2/21/71 4/16/79 4/16/79 4/18/79 4/18/79 4/14/79 4/14/79 3/04/79 3/08/79 4/22/79 3/04/79 4/25/79 5/06/81 4/07/83 3/16/73 3/16/73 3/16/73 3/19/73 1/19/88 3/16/73 1/19/88 3/16/73 3/16/73 Stage (ft) 7.20 - 58.87 37.03 - 33.47 18.87 30.18 18.66 65.46 17.33 17.72 13.17 21.00 24.40 8.67 29.52 26.06 10.95 12.70 9.63 17.28 15.85 Dis- charge (ft3/*) 1,470 222,000 222,000 343,000 343,000 62,200 14,700 38,700 28,100 290,000 23,400 498,000 5,530 3,780 74,200 276 104,000 323,000 3,660 16,500 5,100 45,800 12,500 Regu- lated during flood1 N Y Y Y Y N N N N Y N Y N N N N N Y N N N N N Recur- rence interval (years) 10-25 50-100 - 65-70 - >100 >50 50-100 25-50 50-100 40-50 30-40 - 10-25 >100 50-55 >100 - >100 >100 40-50 Significant Floods, 1970 Through 1989, Alabama 77 Table 2. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alabama Continued Maximum stage and discharge for period of record through 1995 Significant floods during 1970-89 Station number (fig. 23) 03586500 03589500 Station name Big Nance Creek at Courtland, AL Tennessee River at Florence, AL Total drainage area (mi2) 166 30,810 Period of record 1936-40, 1946-81, 1988-95 1867, 1895-95 Water year 1973 1973 1897 Stage (ft) 24.97 30.03 32.50 Dis- charge (ft3/s) 27,200 530,000 444,000 Date (month/ day/year) 3/16/73 3/17/73 Stage (ft) 24.97 30.03 Dis- charge (frVs) 27,200 530,000 Regu- lated during flood1 N Y Recur- rence interval (years) >100 - 03591570 Bear Creek at Posey Mill, 26.8 1964-75 AL 03591800 Bear Creek near 143 1957-79, Hackleburg, AL 1981 03592200 Cedar Creek near Pleasant 189 1948,1951, Site, AL 1955, 1958-77 1973 1973 1973 26.38 4,200 39.00 24,000 28.02 27,100 3/16/73 26.38 4,200 N 50-100 3/16/73 39.00 24,000 N >100 3/16/73 28.02 27,100 N >100 03592300 Little Bear Creek near Halltown, AL 78.2 1951-77 1973 18.18 20,400 3/16/73 18.18 20,400 >100 ^Regulated during flood: N, no; Y, yes. 78 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Alaska Hydroclimatology Alaska is located northwest of the conterminous United States and Canada. Alaska is bordered on three sides by different bodies of water the Bering Sea, the North Pacific Ocean, the Chukchi Sea, and the Arctic Ocean. The moisture in Alaska is mainly controlled by storms originating over the North Pacific Ocean or the southern perimeter of the Bering Sea (Paulson and others, 1991). These storms travel northeastward from their point of origin toward southeastern Alaska and the Gulf of Alaska during most of the year. During summer, these storms typically change path and move more northward over the Bering Sea and Bering Strait. These storms partly regulate the geographic distribu- tion of seasonal and annual precipitation, and the change in direction of the storms results in storms occurring in the interior of Alaska more during the summer than during the winter. Mean annual precipi- tation ranges from 320 in. in southeastern Alaska to less than 5 in. in northern Alaska near the Arctic Ocean (Paulson and others, 1991). Alaska can be divided into four climatic zones. This division was necessary because of the great cli- matic differences resulting from the size of the State, the topography, and the mechanisms by which temper- ature and precipitation are affected by the oceans on three sides. The zones are defined progressively north- ward and are characterized as follows. The areas along the southern coast have small temperature variations, large annual precipitation, relatively cool summers, and relatively warm winters that have short periods of below-freezing temperatures. The southwestern and western coasts have greater daily and seasonal temper- ature variations and less precipitation than the south- ern coastal areas. The interior of the State has a continental climate with large daily and annual tem- perature ranges and a small quantity of annual precipi- tation. The northern coast has less temperature variation, less precipitation (especially near the Arctic Ocean), and lower mean annual temperature than the interior part of the State. Precipitation is greatest dur- ing August along the northern coast and in continental areas, and during October in the southern coastal area. When the temperatures are mild, local flooding is caused by convective storms. Warm temperatures also bring the probability of the melting of the snowpack and associated flooding. Serious flooding in Alaska is difficult to determine due to the extensive area of the State that is undeveloped. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Alaska depends largely on the drainage area of the basin, mean annual precipitation, and mini- mum January temperature. The percentage of the drainage area that is forested and the lake storage areas also affect runoff (Jennings and others, 1994). Significant Floods The flood of October 1986 was the most extensive in Alaska during 1970-89. In south-central Alaska, almost 18 in. of rainfall during August 9-11 caused flooding around Seward, and a separate but concurrent storm in the Susitna River Basin caused floods having recurrence intervals greater than 100 years. Landslides and landslide-dam failures and resultant floods, debris flows, alluvial-fan aggradation, and flooding in and around Seward caused about $20 million in damages, but short-term streamflow records and unstable chan- nels precluded accurate discharge or recurrence-inter- val determinations in the most extensively damaged area (Jones and Zenone, 1988; Lamke and Bigelow, 1988). In August 1971, flooding occurred in the Mata- nuska and Susitna River Valleys and along the western Cook Inlet in south-central Alaska. Rainfall ranging from 3 to 9 in. was recorded in early August, com- pounding flood conditions created in July. Discharges having recurrence intervals greater than 100 years occurred in several streams in the sparsely populated area, and flood damages amounted to more than $10 million, mostly to highways in the Matanuska Valley (Lamke, 1972). The location of streamflow-gaging stations in Alaska that had significant floods for 1970-89 is shown in figure 24 by station number. The specific data for each significant flood are listed in table 3. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. Significant Floods, 1970 Through 1989, Alaska 79 References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94^*002, 196 p. Jones, S.H., and Zenone, C., 1988, Flood of October 1986 at Seward, Alaska: U.S. Geological Survey Water- Resources Investigations Report 87-4278,43 p. Lamke, R.D., 1972, Floods of the summer of 1971 in south- central Alaska: U.S. Geological Survey Open-File Report 72-215, 88 p. Lamke, R.D., and Bigelow, B.B., 1988, Floods of October 1986 in south-central Alaska: U.S. Geological Survey Open-File Report 87-391 (revised 1988), 31 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W, compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 80 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 o <o to 00to Inset A Gulf of Alaska Base from U.S. Geological Survey digital data, 1:2,000,000, and 1:1,000,000,1994 Albers Equal-Area Conic projection Standard parallels 55°00' and 65°00', central meridian -154°00' 300 MILES 0 100 200 300 KILOMETERS EXPLANATION 15297200 K Streamflow-gaging station and number Figure 24. Location of streamflow-gaging stations with significant floods during 1970-89 for Alaska. Inset A Base from U.S. Geological Survey digital data, 1 2,000,000, and 1:1,000,000,1994 Albers Equal-Area Conic projection Standard parallels 55°00' and 65°00', central meridian -154°00' 0 10 20 30 40 MILES 0 10 20 30 40 KILOMETERS EXPLANATION 15238820 Kl Streamflow-gaging station and number Figure 24. Location of streamflow-gaging stations with significant floods during 1970-89 for Alaska Continued. 82 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Inset B VSb" Pacific Ocean CANADA Base from U.S. Geological Survey digital data, 1:2,000,000, and 1:1,000,000,1994 Albers Equal-Area Conic projection Standard parallels 55°00' and 65°00', central meridian -154°00' 0 10 20 30 40 50 60 70 MILES i i i I i i i i 0 10 20 30 40 50 60 70 KILOMETERS EXPLANATION 15083500 Cx] Streamflow-gaging station and number Figure 24. Location of streamflow-gaging stations with significant floods during 1970-89 for Alaska Continued. Significant Floods, 1970 Through 1989, Alaska 83 Table 3. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alaska [mi , square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1992 Station number (fig. 24) 15008000 15011500 15012000 15022000 15024750 15024800 15050000 15052500 15054500 15056100 15056560 15067900 15072000 15081580 15083500 15086900 15087250 15087545 15087570 15087590 15093400 15098000 15106940 Station name Salmon River near Hyder, AK Red River near Metlakatla, AK Winstanley Creek near Ketchikan, AK Harding River near Wrangell, AK Goat Creek near Wrangell, AK Stikine River near Wrangell, AK Gold Creek at Juneau, AK Mendenhall River near Auke Bay, AK Bessie Creek near Auke Bay, AK Skagway River at Skagway, AK Klehini River near Klukwan, AK Upper Mahoney Lake outlet near Ketchikan, AK Fish Creek near Ketchikan, AK Black Bear Lake outlet near Klawock, AK Perkins Creek near Metlakatla Red Creek near Point Baker, AK Twin Creek near Petersburg, AK Municipal Watershed Creek near Petersburg, AK Hamilton Creek near Kake, AK Rocky Pass Creek near Point Baker, AK Sashin Creek near Big Port Walter, AK Baranof River at Baranof, AK Hook Creek above tributary near Tenakee, AK Total drainage area (mi2) 94.0 45.3 15.5 67.4 17.3 19,920 9.76 85.1 1.35 145 284 2.03 32.1 1.82 3.38 11.2 3.01 2.20 65.0 2.72 3.72 32.0 4.48 Period of record 1964-73 1964-78 1937-38, 1948-75 1952-92 1977-86 1977-92 1917-20, 1947^18, 1950-82 1966-92 1967-80 1964-86 1982-92 1978-89 1916-24, 1926-35, 1939-92 1981-91 1977-92 1972-81 1967-77, 1979-80 1979-88 1972-73, 1975-86, 1989-92 1977-88 1966-73, 1975-80 1915-22, 1926-27, 1959, 1961-74 1968-80 Water year 1971 1967 1977 1962 1962 1981 1981 1981 1918 1981 1979 1981 1982 1988 1984 1983 1962 1982 1985 1976 1972 1987 1976 1989 1980 1977 1973 1976 1968 Stage (ft) 28.90 28.97 10.79 6.65 16.22 7.04 28.22 6.53 6.80 10.91 14.58 19.25 84.16 8.10 8.11 5.85 7.13 5.66 19.39 11.43 7.83 14.97 17.31 6.15 5.30 13.50 3.79 3.83 Dis- charge (ft3/s) 140,000 104,000 12,400 4,120 15,000 7,020 299,600 2,700 2,600 15,500 310 16,400 9,000 8,330 965 945 5,400 413 2,900 1,530 800 1,090 15,600 15,500 1,190 2,650 9,000 1,290 662 Significant floods during 1970-89 Date (month/ day/year) 8/30/71 11/03/76 10/09/74 10/08/74 9/11/81 9/11/81 9/06/81 9/08/81 11/01/78 9/07/81 10/15/81 10/29/83 10/08/74 12/27/79 11/05/81 10/06/84 1/31/76 11/18/71 10/14/86 1/30/76 10/09/79 1 1/02/76 10/06/72 9/15/76 Stage (ft) 28.90 10.79 5.83 14.50 7.04 28.22 6.53 10.91 14.58 19.25 8.10 5.19 4.91 7.13 5.66 19.39 11.43 7.83 14.97 6.15 5.30 13.50 3.79 Dis- charge (frVs) 140,000 12,400 2,910 1 1,700 7,020 299,600 2,700 15,500 310 16,400 9,000 965 4,540 4,520 413 2,900 1,530 800 1,090 15,600 1,190 2,650 9,000 1,290 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) - 10-25 15 15 10-25 10 40 15 10-25 20-25 10-25 10-25 25-30 25-30 10-25 10-25 10-25 10-25 10-25 15-25 10-25 10-25 20-30 10-25 84 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 3. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alaska Continued Maximum stage and discharge for period of record through 1992 Station number (fig. 24) 15106960 15106980 15107000 15108000 15108250 15195000 15198500 15199000 15200000 15200270 15201000 15201100 15201900 15208200 15209000 15209100 15211700 15212000 15212500 15213400 15216000 15219000 15219100 15236200 15236900 Station name Hook Creek near Tenakee, AK Tonalite Creek near Tenakee, AK Kadashan River near Tenakee, AK Pavlof River near Tenakee, AK Game Creek near Hoonah, AK Dick Creek near Cordova, AK Station Creek near Mentasta, AK Copper River tributary near Slana, AK Gakona River at Gakona, AK Sourdough Creek at Sourdough, AK Dry Creek near Glennallen, AK Little Nelchina River tributary near Eureka Lodge, AK Moose Creek tributary at Glennallen, AK Rock Creek near Tonsina, AK Chititu Creek near May Creek, AK May Creek near May Creek, AK Strelna Creek near Chitina, AK Copper River near Chitina, AK Boulder Creek near Tiekel, AK Stuart Creek near Tiekel, AK Power Creek near Cordova, AK West Fork Olsen Bay Creek near Cordova, AK Control Creek near Cordova, AK Shakespeare Creek at Whittier, AK Wolverine Creek near Lawing, AK Total drainage area (mi2) 8.00 14.5 37.7 24.3 42.8 7.95 15.3 4.32 620 68.0 11.4 7.81 7.11 14.3 30.9 10.4 23.8 20,600 9.80 37.4 20.5 4.78 4.22 1.61 9.51 Period of record 1968-80 1969-88 1965-80 1958-81 1970-77, 1979-80 1971-81 1970-77, 1979-80, 1982, 1984-92 1963-90, 1992 1950-74, 1992 1970-81 1963-92 1965-89, 1992 1963-74 1966-92 1973-83 1973-83 1971-92 1951-52, 1956-90 1964-92 1972-81 1948-92 1965-80 1964-74 1970-80, 1984-92 1967-78, 1981 Water year 1980 1980 1980 1979 1979 1981 1985 1973 1980 1971 1979 1972 1977 1992 1972 1989 1986 1981 1981 1985 1981 1981 1964 1981 1991 1949 1972 1972 1979 1981 Stage (ft) 5.04 9.72 11.42 9.28 15.25 9.25 14.32 46.41 14.24 8.10 78.46 25.88 13.30 14.33 22.03 6.26 12.69 6.22 6.87 26.57 37.30 11.72 12.28 28.37 7.13 7.65 5.30 12.43 12.81 6.28 Dis- charge (ft3/s) 1,520 3,610 8,100 4,620 16,950 2,600 770 260 205 10,500 1,270 546 127 250 225 150 970 168 670 380,000 1,330 450 2,690 5,950 5,540 1,030 1,280 620 1,810 Significant floods during 1970-89 Date (month/ day/year) 10/05/79 10/09/79 10/09/79 10/30/78 11/01/78 8/07/81 7/30/85 6/--/80 8/10/71 S/--/79 S/--/72 5/05/79 5/29/77 S/-/72 5/29/89 8/07/81 8/07/81 8/12/85 7/15/71 8/08/81 8/07/81 8/07/81 9/04/87 9/12/72 9/12/72 9/13/79 8/21/81 Stage (ft) 5.04 9.72 11.42 9.28 15.25 9.25 14.32 14.24 8.10 78.46 25.88 19.00 13.30 22.03 6.26 6.22 6.87 26.57 29.94 37.30 11.72 28.37 7.04 5.30 12.43 12.81 6.28 Dis- charge (ft3/s) 1,520 3,610 8,100 4,620 16,950 2,600 770 205 10,500 1,270 546 350 127 250 225 970 168 670 265,000 380,000 1,330 2,690 5,760 1,030 1,280 620 1,810 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 20-30 10-25 20-30 10-25 10-25 20-30 20-30 20-30 10-25 >50 20-30 10-15 10-25 50-100 10-25 10-25 50-100 20-25 >100 >100 10-25 15-20 10-25 10-25 15-20 10-25 Significant Floods, 1970 Through 1989, Alaska 85 Table 3. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alaska Continued Maximum stage and discharge for period of record through 1992 Station number (fig. 24) 15237400 15238000 15238600 15238820 15238990 15239000 15239050 15239500 15239800 15239900 15240000 15240500 15241600 15242000 15243950 15248000 15251800 15258000 15266300 15266500 15267900 15269500 15271000 15273900 Station name Chalmers River near Cordova, AK Lost Creek near Seward, AK Spruce Creek near Seward, AK Barabara Creek near Seldovia, AK Upper Bradley River near Nuka Glacier near Homer, AK Bradley River near Homer, AK Middle Fork Bradley River near Homer, AK Fritz Creek near Homer, AK Diamond Creek near Homer, AK Anchor River near Anchor Point, AK Anchor River at Anchor Point, AK Cook Inlet tributary near Ninilchik, AK Ninilchik River at Ninilchik, AK Kasilof River near Kasilof, AK Porcupine Creek near Primrose, AK Trail River near Lawing, AK Quartz Creek at Gilpatricks, AK Kenai River at Cooper Landing, AK Kenai River at Soldotna, AK Beaver Creek near Kenai, AK Resurrection Creek near Hope, AK Granite Creek near Portage, AK Sixmile Creek near Hope, AK South Fork Campbell Creek at canyon mouth near Anchorage, AK Total drainage area (mi2) 6.32 8.42 9.26 20.7 - 56.1 9.25 10.4 5.35 137 224 5.19 131 738 16.8 181 9.41 634 2,010 51.0 149 28.2 234 25.2 Period of record 1967-73, 1975-80 1949, 1963-72, 1976, 1987 1966-92 1973-92 1980-92 1958-90 1980-92 1963-92 1963-81 1966-74, 1979-87, 1992 1954-66, 1984-92 1966-81 1963-85 1950-74, 1977 1963-89 1948-50, 1952-77, 1987 1963-70, 1976, 1987 1948-92 1965-92 1968-78, 1980-83, 1985-92 1968-85 1967-80 1970, 1980-90 1967-79, 1981, 1989 Water year 1979 1987 1976 1987 1984 1987 1991 1987 1982 1987 1981 1981 1984 1981 1984 1976 1974 1976 1977 1987 1989 1967 1987 1974 1977 1987 1972 1980 1977 1970 1980 1970 1989 Stage (ft) 12.65 12.30 13.96 6.08 9.86 13.54 10.90 16.16 8.53 18.53 13.96 7.42 8.45 8.51 13.86 6.04 8.64 8.06 13.03 20.23 11.93 17.29 17.18 13.45 9.43 10.55 8.71 8.96 12.46 13.22 20.80 4.35 Dis- charge (ft3/s) 3,380 14,000 920 13,600 2,050 2,530 774 8,800 5,830 1,120 852 255 6,050 4,680 11,000 140 1,240 1,000 13,000 4,000 1,070 7,480 897 23,100 33,700 700 598 3,380 1,980 2,040 8,070 7,300 550 Significant floods during 1970-89 Date (month/ day/year) 8/15/79 10/11/86 10/11/86 11/29/83 10/10/86 8/10/79 10/10/86 10/10/86 10/22/80 11/29/83 10/22/80 11/29/83 11/30/83 5/13/76 4/24/74 8/24/77 10/11/86 9/22/76 10/11/86 9/21/74 9/09/77 10/11/86 7/12/80 9/13/78 7/12/80 8/28/89 Stage (ft) 12.65 - 13.96 6.08 9.86 9.46 10.90 8.53 18.53 17.48 13.96 7.42 8.51 13.86 6.04 8.06 13.03 10.73 17.29 17.18 13.45 9.43 8.71 11.65 13.22 4.35 Dis- charge (ft3/s) 3,380 14,000 13,600 2,050 2,530 6,020 8,800 1,120 852 380 255 6,050 11,000 140 1,240 13,000 4,000 6,660 897 23,100 33,700 700 3,380 1,570 8,070 550 Regu- lated during flood1 N N N N Y Y Y N N N N N N N N N N N N Y N N N N N N Recur- rence interval (years) 10-25 - >50 15-25 5-10 15 50-100 10-25 >50 15-20 10-25 10-25 10-25 10-25 15-25 20-30 50-100 10-25 25-50 40-50 20-25 20-25 25-50 - 25-50 10-25 86 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 3. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alaska Continued Maximum stage and discharge for period of record through 1992 Station number (fig. 24) 15274300 15274600 15274800 15275100 15276000 15276570 15277200 15277410 15282000 15282400 15283500 15284000 15285000 15290000 15290200 15291000 15291100 15291200 15291500 15292000 15292700 15292800 15293000 15294005 Station name North Fork Campbell Creek near Anchorage, AK Campbell Creek near Spenard, AK South Branch South Fork Chester Creek near Anchorage, AK Chester Creek at Arctic Boulevard at Anchorage, AK Ship Creek near Anchorage, AK Ship Creek below power plant at Elmendorf Air Force Base, AK Meadow Creek at Eagle River, AK Peters Creek near Birchwood, AK Caribou Creek near Sutton, AK Purinton Creek near Sutton, AK Eska Creek near Sutton, AK Matanuska River at Palmer, AK Wasilla Creek near Palmer, AK Little Susitna River near Palmer, AK Nancy Lake tributary near Willow, AK Susitna River near Denali, AK Raft Creek near Denali, AK MacLaren River near Paxson, AK Susitna River near Cantwell, AK Susitna River at Gold Creek, AK Talkeetna River near Talkeetna, AK Montana Creek near Montana, AK Caswell Creek near Caswel, AK Willow Creek near Willow, AK Total drainage area (mi2) 13.4 69.7 10.8 27.2 90.5 115 7.43 87.8 289 8.51 13.4 2,070 16.8 61.9 8.00 950 4.33 280 4,140 6,160 2,006 164 19.6 166 Period of record 1967-84 1966-92 1967-73, 1975-78 1967-85, 1988-92 1947-92 1971-80 1965-74 1974-83 1955-78 1963-66, 1968-81, 1988-91 1966, 1971-92 1949-74, 1985-86, 1992 1971, 1976-92 1949-92 1980, 1983-87, 1989-92 1957-65, 1967, 1969-85 1963-92 1958-85 1961-72, 1980-85 1950-92 1964-92 1963-72, 1987 1963-87 1979-92 Water year 1971 1989 1971 1989 1989 1980 1971 1976 1971 1980 1979 1973 1989 1972 1971 1971 1971 1971 1980 1987 1971 1964 1971 1971 1984 1964 1962 1987 1987 1987 1987 Stage (ft) 12.18 23.04 11.29 5.56 6.38 8.04 .. 4.32 12.66 5.73 6.29 7.18 6.80 11.82 26.82 13.60 17.74 7.84 8.92 13.21 13.32 11.72 8.24 .. 8.98 16.58 18.30 17.38 20.00 19.00 9.01 Dis- charge (ft3/s) 107 1,510 44 421 2,100 1,080 1,600 789 184 1,200 595 8,720 11,785 .. 1,680 82,100 700 7,840 3,440 465 38,200 133 9,260 55,000 33,400 90,700 80,600 75,700 15,300 960 12,000 Significant floods during 1970-89 Date (month/ day/year) 8/09/71 8/26/89 8/09/71 8/26/89 8/27/89 8/09/71 8/09/71 9/16/80 6/15/73 5/16/89 8/10/71 8/10/71 8/10/71 8/10/71 10/11/86 8/10/71 8/--/71 8/11/71 8/10/71 8/10/71 10/11/86 10/11/86 10/11/86 10/11/86 Stage (ft) 12.18 23.04 11.29 5.56 6.38 .. 12.66 5.73 7.18 6.80 26.82 13.60 17.74 7.84 13.21 13.32 11.69 8.24 16.36 17.38 20.00 19.00 9.01 Dis- charge (ft3/s) 107 1,510 44 421 2,100 1,600 184 1,200 8,720 117 1,680 82,100 700 7,840 465 38,200 132 9,260 55,000 87,400 75,700 15,300 960 12,000 Regu- lated during flood1 N N N N Y Y N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 >50 10-25 >50 50-75 10-25 10-25 5-10 25-50 10-15 >50 - >50 >100 >25 >100 10 40 10-25 35 50-100 >50 >100 50-100 Significant Floods, 1970 Through 1989, Alaska 87 Table 3. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alaska Continued Maximum stage and discharge for period of record through 1992 Station number (fig. 24) 15294025 15294300 15294350 15294450 15294500 15295600 15295700 15297200 15300000 15300200 15300500 15302000 15302900 15303000 15303150 15305920 15305950 15344000 15365000 15367500 15389000 15438500 15439800 15442500 15453610 Station name Moose Creek near Talkeetna, AK Skwentna River near Skwentna, AK Susitna River at Susitna Station, AK Chuitna River near Tyonek, AK Chakachatna River near Tyonek, AK Terror River near Kodiak, AK Terror River at mouth near Kodiak, AK Myrtle Creek near Kodiak, AK Newhalen River near Iliamna, AK Roadhouse Creek near Iliamna, AK Kvichak River at Igiugig, AK Nuyakuk River near Dillingham, AK Moody Creek at Aleknagik, AK Wood River near Aleknagik, AK Snake River near Dillingham, AK West Fork tributary near Tetlin Junction, AK Taylor Creek near Chicken, AK King Creek near Dome Creek, AK Discovery Fork American Creek near Eagle, AK Bluff Creek near Eagle, AK Porcupine River near Fort Yukon, AK Bedrock Creek near Central, AK Boulder Creek near Central, AK Quartz Creek near Central, AK Ray River tributary near Total drainage area (mi2) 52.3 2,250 19,400 131 1,120 15.0 30.7 4.74 3,478 20.8 6,500 1,490 1.28 1,110 113 1.02 38.40 5.87 5.53 3.38 29,500 9.94 31.3 17.2 8.00 Period of record 1972-92 1960-82, 1987 1975-92 1976-87 1959-72 1963-68, 1979-86 1964-68, 1982-92 1963-92 1951-67, 1969-77, 1982-86 1973-76, 1978-83 1967-87 1954-92 1969-73, 1975-85, 1988-92 1958-70, 1972 1974-83 1967-84, 1990-92 1967-91 1975-92 1963-73 1963-72 1965-79 1964-74, 1989 1964-92 1967, 1969-79, 1989-92 1977-92 Water year 1987 1987 1987 1987 1971 1967 1981 1966 1977 1971 1980 1979 1980 1977 1988 1971 1972 1977 1973 1992 1988 1982 1992 1972 1964 1970 1973 1989 1967 1989 1984 1976 1979 Stage («) 31.80 17.30 22.58 16.46 29.30 7.87 6.48 6.93 10.68 12.38 13.02 23.64 10.49 11.35 19.60 13.83 6.81 14.02 19.17 15.88 13.44 16.26 11.29 19.70 11.68 33.68 15.73 10.01. 10.18 22.06 20.36 Dis- charge (ft3/s) 5,790 69,000 312,000 10,000 470,000 23,400 3,400 3,820 1,350 44,200 280 50 48,700 32,200 24,900 55 25,000 2,470 102 62 750 163 118 52 41 299,000 800 405 1,460 1,310 500 220 Significant floods during 1970-89 Date (month/ day/year) 10/11/86 10/11/86 10/12/86 10/10/86 8/11/71 10/21/80 11/29/83 1/03/77 8/16/71 8/--/80 9/12/80 7/02/77 6/07/71 6A-/72 6/17/77 7/13/73 6/-/8S 6/--/S2 8/07/72 6/--/70 5/24/73 6/25/89 6/25/89 S/--/76 S/--/79 Stage (ft) 31.80 17.30 22.58 16.46 " 7.87 4.80 6.93 10.68 12.38 23.64 10.49 19.60 13.83 6.81 14.02 15.88 13.44 11.29 11.68 33.68 -- 10.01 22.06 20.36 Dis- charge (tf/s) 5,790 69,000 312,000 10,000 470,000 3,400 3,060 1,350 44,200 280 48,700 32,200 55 25,000 2,470 102 750 163 52 41 299,000 800 1,460 500 220 Regu- lated during flood1 N N N N N Y Y N N N N N N N N N N N N N N N N N N Recur- rence interval (years) >100 75-100 >50 >50 " 10-25 -- 35-40 75-100 10-25 15-20 75-100 75-100 20-25 10-25 35-40 25-30 15-20 10-25 10-25 10-25 >25 50-75 15-20 15-20 Stevens Village, AK 88 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 3. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alaska Continued Maximum stage and discharge for period of record through 1992 Station number (fig. 24) 15457700 15457800 15470300 15470330 15470340 15471500 15473600 15473950 15476000 15476049 15478010 15478500 15480000 15484000 15514500 15518200 15519200 15535000 15564875 15564879 15564887 15565447 15619000 15625000 15633000 Station name Erickson Creek near Livengood, AK Hess Creek near Livengood, AK Little Jack Creek near Nabesna, AK Chalk Creek near Nabesna, AK Jack Creek near Nabesna, AK Tanana River tributary near Tetlin Junction, AK Log Cabin Creek at Log Cabin Inn, AK Clearwater Creek near Tok, AK Tanana River near Tanacross, AK Tanana River tributary near Cathedral Rapids, AK Rock Creek near Paxson, AK Ruby Creek near Donnelly, AK Banner Creek at Richardson, AK Salcha River near Salchaket, AK Wood River near Fairbanks, AK Rock Creek near Ferry, AK Brooks Creek tributary near Livengood, AK Caribou Creek near Chatanika, AK Middle Fork Koyukuk River near Wiseman, AK Slate Creek at Coldfoot, AK Bonanza Creek tributary near Prospect Camp, AK Yukon River at Pilot Station, AK Dexter Creek near Nome, AK Arctic Creek near Nome, AK Washington Creek near Nome, AK Total drainage area (mi2) 26.3 662 6.73 14.8 115 2.43 10.7 36.4 8,550 3.09 50.3 5.32 20.2 2,170 855 8.17 7.81 9.19 1,200 73.4 11.7 321,000 2.99 1.76 6.34 Period of record 1973-92 1971-78, 1983-86 1975-92 1975-92 1975-83, 1992 1965-90 1966-91 1964-80, 1985 1953-90 1970, 1973-92 1963-87 1963-79, 1987 1964-92 1949-51, 1953-59, 1961-92 1969-78 1965, 1967, 1970-75, 1977-80 1964-88, 1990 1970-86 1968, 1971-80, 1984-87 1981-92 1975-92 1976-92 1978, 1981-89 1969-78 1964-92 Water year 1977 1985 1975 1985 1992 1978 1975 1988 1975 1981 1985 1970 1988 1970 1977 1987 1977 1989 1967 1976 1980 1975 1990 1984 1975 1977 1973 1989 1987 1985 1991 1989 1978 1975 1978 1975 1989 Stage (ft) 21.10 21.62 66.78 18.53 18.55 18.00 21.60 13.52 11.70 12.10 49.58 12.91 15.38 12.68 13.26 16.38 21.78 8.98 13.90 13.27 16.72 3.64 5.47 10.66 13.50 20.17 19.55 27.47 14.12 16.18 13.04 19.35 21.78 Dis- charge (ft3/s) 860 370 10,000 239 360 2,440 58 350 350 1,680 750 49,100 332 1,800 1,660 400 950 97,000 5,510 938 168 36 184 117 19,100 17,100 3,900 253 1,100,000 1,070,000 135 64 199 80 620 150 Significant floods during 1970-89 Date (month/ day/year) 5/31/77 5/13/75 7/31/85 8/10/78 9/11/75 5/--/8S 8/--/81 7/30/85 7/25/88 7/07/70 6/--/77 6/18/77 6/26/89 8/23/86 8/13/76 6/18/80 5/--/7S 6/16/84 5/31/77 6/01/89 6/26/87 6/05/85 6/14/89 7/10/75 7/10/75 Stage (ft) 21.10 66.78 18.53 18.00 21.60 13.52 12.10 -- 12.91 15.38 12.68 -- 16.38 18.67 8.98 13.90 13.27 3.64 10.66 20.17 19.55 -- 14.12 19.35 Dis- charge (ft3/s) 860 10,000 239 360 2,440 58 350 1,680 49,100 332 1,800 400 950 37,100 5,510 938 168 184 19,100 3,900 253 1,100,000 135 199 620 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 50-100 >25 40-50 20-30 10-25 30-40 10 25-30 >100 40 25-35 5-10 20-25 10-15 10-25 5-10 30 10-15 5-10 10-15 5-10 25-50 10-25 10-25 >100 Significant Floods, 1970 Through 1989, Alaska 89 Table 3. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Alaska Continued Maximum stage and discharge for period of record through 1992 Station number (fig. 24) 15668100 15668200 15712000 15744000 15798700 15896000 15896700 15904900 15910200 Station name Star Creek near Nome, AK Crater Creek near Nome, AK Kuzitrin River near Nome, AK Kobuk River at Ambler, AK Nunavak Creek near Barrow, AK Kuparuk River near Deadhorse, AK Putuligayuk River near Deadhorse, AK Atigun River tributary near Pump Station 4, AK Happy Creek at Happy Valley Camp near Sagwon, AK Total drainage area (mi2) 3.78 21.9 1,720 6,570 2.79 3,130 176 32.6 34.5 Period of record 1964-89 1964-89 1910, 1963, 1966-73 1966-78 1972-92 1971-92 1970-80, 1982-92 1976-92 1972-92 Water year 1986 1977 1975 1971 1966 1971 1973 1980 1984 1978 1980 1971 1976 1976 Stage (ft) 12.25 15.18 19.71 - 11.94 - 38.96 4.86 33.75 37.60 22.60 24.50 14.50 18.51 Dis- charge (ft3/s) 179 33 2,540 40,000 31,800 95,000 93,600 131 66 118,000 5,800 4,980 1,000 1,390 Significant floods during 1970-89 Date (month/ day/year) 9/04/86 7/10/75 6/03/71 5/29/71 6/10/80 6/07/78 6/12/80 7/29/76 6/06/76 Stage (ft) 12.25 19.71 - 4.86 37.60 22.60 14.50 18.51 Dis- charge (ftVs) 179 2,540 40,000 95,000 131 118,000 5,800 1,000 1,390 Regu- lated during flood1 N N N N N N N N N Recur- rence interval (years) 30 30 10-25 5-10 15 30-40 15 20 10 1 Regulated during flood: N, no; Y, yes. 90 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Arizona Hydroclimatology Located in the southwestern part of the United States, Arizona's climate ranges from periods of excessive regional flooding to very dry periods. The moisture in Arizona is provided mainly by the Pacific Ocean and the Gulf of Mexico (Paulson and others, 1991). Due to Arizona's position in a transitional region of general atmospheric circulation, the sources of moisture shift during the year. The principal sources of moisture are the Gulf of Mexico in the summer and the Pacific Ocean in the winter. The moisture supply generally is small because Arizona is close to a semi- permanent, subtropical high-pressure zone. Typically, half of Arizona receives less than 10 in. of mean annual precipitation in about equal quantities during the summer and winter. Annual precipitation in Arizona increases with elevation. Most of the Central Highlands and some mountain tops in the Basin and Range Lowlands receive more than 25 in. of mean annual precipitation (Paulson and others, 1991). Regional flooding is most severe in Arizona when strong Pacific storms are diverted south in the fall and winter and the subtropical jetstream supplies moisture from the Pacific Ocean. Localized but intense flash flooding can occur during the summer monsoon period from strong thunderstorms. Occasionally, remnants of strong hurricanes moving from the Pacific Ocean pro- duce flooding in Arizona. On the basis of regionaliza- tion procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Arizona is dependent on drainage area of the basin, mean basin elevation, and mean annual precipitation (Jennings and others, 1994). Significant Floods The most extensive flood during 1970-89 was the flood of October 1983. Twenty-five percent of the streamflow-gaging stations in the State recorded significant discharges during this time. The areas affected were in southeastern Arizona, particularly the Santa Cruz and San Francisco River Basins. The flood was caused by the remnant moisture from dissipated Tropical Storm Octave. The most intense rainfall was concentrated in a narrow band from south of Tucson to Clifton. Maximum discharges on the Santa Cruz River at Tucson (station 09482500, fig. 25) and on Aravaipa Creek (station 09473000, fig. 25) were more than twice those recorded in the previous 65 years. Large, flat areas northwest of Tucson were inundated with floodwaters when the Santa Cruz and Gila Rivers overflowed their banks and spread across the flat land. During 1979, 13 percent of the streamflow-gaging stations recorded significant discharges. This flood affected the upper Salt and Verde Rivers, and it filled reservoirs upstream from Phoenix. The third-most extensive flood in Arizona occurred during the fall of 1970. Twelve percent of the gaged streams recorded signifcant discharges. The flooding occurred on Tonto Creek and the Has- sayampa River in central Arizona. The location of streamflow-gaging stations in Ari- zona that had significant floods for 1970-89 is shown in figure 25 by station number. The specific data for each significant flood are listed in table 4. A signifi- cant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-^002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Arizona 91 San Francisco River Base from U.S. Geological Survey digital data, 1.2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 0 20 40 60 KILOMETERS EXPLANATION Central Highlands Basin and Range Lowlands 09535300 is Streamflow-gagmg station and number Figure 25. Location of streamflow-gaging stations with significant floods during 1970-89 for Arizona. 92 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Inset A 55' 50' 45' 110°40' 32°20' 15' 32°10' Base from U.S. Geological Survey digital data, 1:100,000,1994 Q 2 Universal Transverse Mercator projection I___ i Zone 12 0 2 4 Converted to Alters Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' EXPLANATION 09482950 K Streamflow-gaging station and number Figure 25. Location of streamflow-gaging stations with significant floods during 1970-89 for Arizona Continued. 6 MILES 6 KILOMETERS Significant Floods, 1970 Through 1989, Arizona 93 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 25) 09371100 09379030 09379200 09379560 09380000 09383400 09383500 09383550 09385500 09386500 09390500 09392000 09392800 09395900 09396100 09397300 09397500 09398000 09398500 09399000 09400290 Station name Teec Nos Pos Wash near Teec Nos Pos, AZ Black Mountain Wash near Chinle, AZ Chinle Creek near Mexican Water, AZ El Capitan Wash near Kayenta, AZ Colorado River at Lees Ferry, AZ Little Colorado River at Greer, AZ Nutrioso Creek above Nelson Reservoir near Springerville, AZ Nutrioso Creek below Nelson Reservoir near Springerville, AZ Little Colorado River below Lyman Reservoir near St. Johns, AZ Little Colorado River above Zuni River near Hunt, AZ Show Low Creek near Lakeside, AZ Show Low Creek below Jaques Dam near Show Low, AZ Long Lake tributary near Show Low, AZ Black Creek near Lupton, AZ Puerco River near Chambers, AZ Little Colorado River near Joseph City, AZ Chevelon Fork below Wildcat Canyon near Winslow, AZ Chevelon Creek near Winslow, AZ Clear Creek below Willow Creek near Winslow, AZ Clear Creek near Winslow, AZ Teshbito Wash tributary near Holbrook, AZ Total drainage area (mi2) 16.0 80.7 3,650 5.88 111,800 29.1 83.3 86.8 790 3,741 68.6 73.0 5.22 494 2,156 12,384 271 785 317 621 20.0 Period of record 1967-76 1963-77 1963-94 1963-76 1884, 1921-94 1961-82, 1984 1967-82, 1984 1967-82 1941-53, 1956-80 1940-72 1954-94 1943, 1954-94 1965-76 1964-82 1971-88, 1990-94 1972, 1974-94 1948-70, 1979, 1982-94 1916-20, 1929-34, 1936-72, 1979 1948-91, 1993 1929-34, 1936-80, 1982 1960, 1963-76 Water year 1970 1977 1982 1971 1884 1973 1984 1973 1941 1971 1979 1972 1985 1943 1972 1982 1971 1990 1979 1993 1993 1979 1993 1929 1970 1960 Stage (ft) 9.44 11.27 13.87 11.40 31.50 5.65 12.28 7.03 .. 4.22 9.16 9.53 .. 4.00 5.59 9.58 9.65 11.80 7.64 8.32 20.78 24.46 26.73 18.10 15.10 16.50 Dis- charge (ft3/s) 1,350 3,100 12,000 2,340 300,000 615 700 465 603 1,310 5,550 5,450 3,080 304 530 7,680 17,800 14,700 25,400 12,400 24,700 33,600 29,100 50,000 890 -- Significant floods during 1970-89 Date (month/ day/year) 9/12/70 8/17/77 9/07/70 8/24/82 8/26/71 6/29/83 10/20/72 10/02/83 4/29/73 4/27/79 9/03/71 12/26/71 12/18/78 12/26/71 12/28/84 12/26/71 8/25/82 9/30/71 12/19/78 12/18/78 12/18/78 12/18/78 12/19/78 9/05/70 Stage (ft) 9.44 11.27 7.55 13.87 11.40 18.14 5.65 12.28 7.03 4.22 9.53 9.16 -- 5.59 9.58 9.65 7.64 18.25 24.46 22.32 16.67 15.10 Dis- charge (ft3/s) 1,350 3,100 9,880 12,000 2,340 97,300 615 700 465 540 1,310 5,450 5,550 2,500 3,080 530 7,680 17,800 25,400 19,900 33,600 19,700 36,300 890 Regu- lated during flood1 N N N N N Y N N Y Y Y Y Y Y Y N N N N N N Y Y N Recur- rence interval (years) 10-25 10-25 20 30-50 25-50 75-100 30-10 20-30 20-50 10-30 20-30 20-30 20-30 10-30 10-30 10-25 20-30 5-15 5-15 20-30 75-100 30-40 30-50 <10 94 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 25) 09400565 09400580 09400590 09400595 09400600 09400650 09400655 09400660 09400680 09401210 09401245 09401260 09401300 09401370 09401400 09402000 09402500 09403000 09403780 09403800 09415000 09415050 09419590 09421800 Station name Polacca Wash tributary near Chinle, AZ Castle Butte Wash near Winslow, AZ Rio de Flag at Hidden Hollow Road at Flagstaff, AZ Schultz Canyon at Flagstaff, AZ Rio de Flag at Flagstaff, AZ Sinclair Wash at Flagstaff, AZ Rio de Flag at Interstate Highway 40 at Flagstaff, AZ Bow and Arrow Wash at Flagstaff, AZ Switzer Canyon at Flagstaff, AZ Slate Mountain Wash near Flagstaff, AZ Klethla Valley tributary near Kayenta, AZ Moenkopi Wash at Moenkopi, AZ Hamblin Wash tributary near Cedar Ridge, AZ Hamblin Wash tributary number 2 near Tuba City, AZ Moenkopi Wash near Tuba City, AZ Little Colorado River near Cameron, AZ Colorado River near Grand Canyon, AZ Bright Angel Creek near Grand Canyon, AZ Kanab Creek near Fredonia, AZ Bitter Seeps Wash tributary near Fredonia, AZ Virgin River at Littlefield, AZ Big Bend Wash tributary near Littlefield, AZ Detrital Wash tributary near Chloride, AZ Ringbolt Wash near Hoover Dam, AZ Total drainage area (mi2) 6.45 5.57 31.5 6.09 51.0 8.11 82.4 2.06 1.87 5.43 0.79 1,629 0.10 2.16 2,492 26,459 141,600 101 1,085 2.85 5,090 7.27 1.23 1.21 Period of record 1964-76 1964-76 1970-82 1970-80 1956-60, 1970-82 1970-80 1970-82 1969-80 1969-80 1962-75 1962-76 1974-94 1963-76 1963-75 1941-53, 1965-78 1923, 1929, 1947-94 1884, 1921-94 1924-73 1965-80 1963-76 1930-94 1963-75 1963-76, 1980 1964-76, 1980 Water year 1975 1975 1973 1978 1973 1979 1982 1970 1979 1971 1979 1973 1971 1983 1976 1973 1973 1923 1952 1884 1921 1936 1970 1971 1964 1989 1970 1963 1971 1976 Stage (ft) 11.60 10.01 - 2.79 3.25 3.29 8.27 9.21 9.30 6.19 7.60 6.53 9.57 15.10 11.84 3.47 16.98 20.70 - 37.50 15.00 9.11 10.82 12.30 22.37 3.88 3.89 4.75 6.47 Dis- charge (ft3/s) 1,130 860 153 144 48 41 240 401 421 73 135 88 290 10,100 110 350 12,100 120,000 24,900 300,000 220,000 4,400 4,630 1,950 736 61,000 250 248 470 310 Significant floods during 1970-89 Date (month/ day/year) 9/07/75 7/15/75 4/28/73 4/28/73 3/12/82 9/05/70 12/19/78 8/15/71 12/18/78 4A-/73 8/--/71 9/30/83 -/--/76 10/19/72 10/19/72 10/19/72 6/29/83 7/19/71 8/18/70 8/23/71 3/02/78 1/01/89 -/-no 8/12/71 9/08/76 Stage (ft) 11.60 10.01 .. 3.25 8.27 9.21 9.30 6.19 7.60 6.53 9.57 15.10 11.84 3.47 16.98 19.67 26.26 8.84 9.11 10.82 13.60 22.37 3.88 4.75 6.47 Dis- charge (tf/s) 1,130 860 153 48 240 401 421 73 135 88 290 10,100 110 350 12,100 22,400 96,200 2,300 4,630 1,950 22,000 61,000 250 470 310 Regu- lated during flood1 N N N N N N N N N N N N N N N Y Y N N N N N N N N Recur- rence interval (years) 10-25 10-25 <10 <10 10-25 25-50 <10 25-50 10-25 <10 10-25 10-25 <10 5-20 40-70 30-35 75-100 20 25-50 10-25 20 >100 10-25 20-40 5-20 Significant Floods, 1970 Through 1989, Arizona 95 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 25) 09423760 09423780 09423820 09423900 09424407 09424470 09424700 09424900 09428550 09428800 09429150 09429300 09429400 09429510 09442000 09444100 09444200 09444500 09446500 09447000 09448500 09451800 09456400 Station name Little Meadow Creek near Oatman, AZ Walnut Creek near Kingman, AZ Sacramento Wash near Yucca, AZ Sacramento Wash tributary near Topock, AZ Me Carry's Wash near Kingman, AZ Kirkland Creek near Kirkland, AZ Iron Spring Wash tributary near Bagdad, AZ Santa Maria River near Bagdad, AZ Bouse Wash tributary near Bouse, AZ Tyson Wash tributary near Quartzsite, AZ Creosote' Wash near Ehrenberg, AZ Colorado River below Cibola Valley, AZ Indian Wash tributary near Yuma, AZ Mittry Lake tributary near Yuma, AZ Gila River near Clifton, AZ Campbell Blue Creek near Alpine, AZ Blue River near Clifton, AZ San Francisco River at Clifton, AZ Eagle Creek near Double Circle Ranch near Morenci, AZ Eagle Creek above pumping plant near Morenci, AZ Gila River at head of Safford Valley near Solomon, AZ Tollgate Wash tributary near Clifton, AZ Gold Gulch near Bowie, AZ Total drainage area (mi2) 8.47 31.3 787 14.7 13.50 109 0.64 1,128 14.6 13.7 1.98 187,800 2.56 0.30 4,010 -- 506 2,766 377 622 7,896 0.12 15.0 Period of record 1965-76 1965-76 1965-76 1963-76 1968-79 1974-83 1964-76, 1978-79 1967-85, 1989-94 1963-76 1963-76 1965-76 1957-88 1963-76, 1980 1965-76 1911-17, 1928-46, 1948-94 1959-89 1966, 1968-94 1891, 1905-07, 1911-86, 1988-94 1944-67, 1973 1916, 1932, 1944-94 1914-94 1963-76 1963-76 Water year 1970 1971 1971 1976 1972 1979 1980 1978 1978 1991 1971 1976 1974 1971 1983 1980 1973 1979 1984 1985 1973 1984 1993 1973 1993 1984 1984 1973 1963 1971 Stage (ft) 6.89 5.89 7.63 10.48 5.75 11.85 29.40 7.12 7.82 8.56 4.44 4.11 6.83 16.57 5.36 4.51 23.80 4.52 22.56 19.72 25.27 12.02 13.04 20.80 7.54 7.55 10.16 Dis- charge (tt3/s) 869 715 13,000 1,030 1,000 10,300 8,440 180 23,100 18,900 2,920 1,950 980 580 40,700 98 165 57,000 619 204 30,000 90,900 42,900 30,000 36,800 36,400 132,000 63 62 2,550 Significant floods during 1970-89 Date (month/ day/year) 8/--/70 8/12/71 8/12/71 9/10/76 9/19/72 11/11/78 3/01/78 3/01/78 8/10/71 9/25/76 8/10/71 8/18/83 10/07/83 -/-/80 8/16/73 10/21/72 12/19/78 12/29/84 10/20/72 10/02/83 10/20/72 10/02/83 10/20/72 10/02/83 12/19/78 10/02/83 10/19/72 8/18/71 Stage (ft) 6.89 5.89 7.63 10.48 5.75 11.85 7.12 7.82 4.44 6.83 16.57 15.72 5.36 4.51 18.70 3.80 20.80 -- 22.56 19.72 12.02 13.04 14.40 20.80 7.54 10.16 Dis- charge (frVs) 869 715 13,000 1,030 1,000 10,300 180 23,100 2,920 1,950 580 40,700 36,400 98 165 33,000 57,000 48,800 342 619 30,000 90,900 30,000 36,400 100,000 132,000 63 2,550 Regu- lated during flood1 N N N N N N N N N N N Y Y N N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 25-50 25-50 10-25 15-40 20-50 10-25 15-25 \5-40 10-25 10-25 25-75 25-75 15-40 10-25 40-50 >100 75-100 20-30 50-100 20-40 75-100 >100 >100 40-50 75-100 5-20 10-25 96 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1 994 Station number (fig. 25) 09458200 09460150 09466500 09467120 09468300 09469499 09469500 09470500 09471087 09471090 09471110 09471185 09471195 09471550 09471800 09472100 09473000 09473200 09473500 09473600 09473998 Station name Deadman Creek near Safford, AZ Frye Creek near Thatcher, AZ Gila River at Calva, AZ Salt Creek near Peridot, AZ Sevenmile Wash tributary near Globe, AZ San Carlos Reservoir inflow at Coolidge Dam, AZ Gila River below Coolidge Dam, AZ San Pedro River at Palominas, AZ Walnut Gulch 63. 1 1 1 near Tombstone, AZ Walnut Gulch 63.009 near Tombstone, AZ Walnut Gulch 63.015 near Tombstone, AZ Walnut Gulch 63.103 near Tombstone, AZ Walnut Gulch 63.007 near Tombstone, AZ San Pedro River near Tombstone, AZ San Pedro River near Benson, AZ Peck Canyon tributary near Redington, AZ Aravaipa Creek near Mammoth, AZ Green Lantern Wash near Winkelman, AZ San Pedro River at Winkelman, AZ Tarn O'Shanter Wash near Hayden, AZ Gila River inflow Coolidge Dam to Kelvin, Total drainage area (mi2) 4.78 4.02 11,470 35.2 0.83 12,900 12,886 737 0.22 9.11 9.24 0.28 5.22 1,730 2,490 8.02 537 3.63 4,453 4.37 5,125 Period of record 1967-76, 1979, 1987, 1989-93 1967-76, 1979, 1991-94 1916, 1930-94 1964-75, 1979 1933, 1962-76, 1979 1906, 1914-28, 1930-86 1906, 1914-86, 1989-94 1926, 1930-33, 1935-41, 1950-94 1962-81 1967-81 1955-81 1963-81 1966-81 1967-86 1966-76 1968-81 1919-21, 1931-41, 1965-94 1964-76, 1981 1919, 1926, 1930, 1935, 1940, 1963-84 1963-76, 1981 1913-86 Water year 1979 1991 1979 1993 1984 1973 1979 1906 1916 1906 1916 1940 1926 1976 1972 1955 1975 1972 1978 1972 1974 1972 1984 1981 1967 1984 1979 1974 1916 1968 Stage (ft) - 4.30 2.80 23.00 19.56 9.47 25.50 - 25.50 16.45 23.90 .. .. .. 11.40 10.60 10.85 9.25 16.76 9.00 9.18 - 14.41 14.28 .. 18.70 Dis- charge (tf/s) 2,760 393 2,300 509 150,000 3,200 640 150,000 130,000 150,000 130,000 22,000 541 2,640 5,290 31 2,590 24,200 9,800 9,520 4,340 70,800 3,700 2,650 135,000 18,000 1,570 100,000 27,600 Significant floods during 1970-89 Date (month/ day/year) 12/18/78 12/19/78 10/03/83 10/19/72 12/18/78 12/19/78 10/03/83 10/07/83 10/09/77 7/27/76 7/24/72 8/10/71 7/17/75 8/12/72 10/09/77 8/26/72 8/12/72 10/02/83 5/01/81 ~/~/84 8/02/74 10/02/83 Stage (ft) - - 23.00 19.56 9.47 -- 10.76 16.04 - - .. 11.40 10.60 9.25 16.76 9.00 - 14.28 .. Dis- charge (ft3/s) 2,760 2,300 150,000 3,200 640 100,000 150,000 4,960 14,500 541 2,640 1,250 31 2,590 24,200 9,800 4,340 70,800 3,700 135,000 1,570 100,000 Regu- lated during flood1 N N N N N N N Y N N N Y N N N N N N N N N N Recur- rence interval (years) >100 >100 50-80 10-25 20-40 20-50 50-80 5-25 20 >100 25-50 10-25 <10 50-100 50-100 <10 >50 >100 20-40 >100 >50 20-50 AZ Significant Floods, 1970 Through 1989, Arizona 97 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 25) 09474000 09478200 09479200 09479500 09480000 09480500 09481500 09481700 09481800 09482000 09482330 09482350 09482400 09482410 09482420 09482450 09482480 09482500 09482950 09483010 09483025 09483030 09483040 09483045 Station name Gila River at Kelvin, AZ Durham Wash near Florence, AZ Queen Creek tributary at Apache Junction, AZ Gila River near Laveen, AZ Santa Cruz River near Lochiel, AZ Santa Cruz River near Nogales, AZ Sonoita Creek near Patagonia, AZ Calabasas Canyon near Nogales, AZ Demetrie Wash tributary near Continental, AZ Santa Cruz River at Continental, AZ Pumping Wash near Vail, AZ South Fork Airport Wash near Tucson, AZ Airport Wash at Tucson, AZ Rodeo Wash at Tucson, AZ Julian Wash at Tucson, AZ West Branch Santa Cruz River at Tucson, AZ Big Wash at Tucson, AZ Santa Cruz River at Tucson, AZ Railroad Wash at Tucson, AZ High School Wash at Tucson, AZ Silvercroft Wash at Tucson, AZ Anklam Wash at Tucson, AZ West Speedway Wash near Tucson, AZ Flowing Wells Wash at Tucson, AZ Total drainage area (mi2) 18,011 15.6 0.51 20,615 82.2 533 209 10.3 0.15 1,682 0.81 9.78 23.0 7.24 26.5 23.6 2.94 2,222 2.30 0.95 2.74 2.11 0.46 3.53 Period of record 1891, 1906, 1912-94 1954-57, 1963-76, 1980 1961-79 1916, 1926, 1940-46, 1948-94 1949-94 1930-94 1930-72, 1978, 1984 1963-65, 1967-76, 1978 1963-76 1940-47, 1952-94 1966-81 1966-80 1966-81, 1984, 1988 1970-81 1970-81 1966-81 1965-81 1915-81, 1984-94 1970-74, 1976-83 1968-83 1965, 1969-81 1965-81 1965-81 1971-90 Water year 1906 1984 1971 1971 1916 1993 1978 1978 1984 1934 1978 1975 1984 1978 1971 1974 1971 1984 1968 1970 1972 1970 1976 1981 1971 1984 1971 1972 1972 1971 1970 1971 1971 1970 1976 1969 1982 1971 Stage (ft) 33.00 6.10 5.30 12.41 10.21 15.50 13.70 15.20 6.10 7.13 16.34 16.70 5.68 6.51 6.69 4.20 4.39 4.16 4.46 6.91 8.02 11.41 22.20 7.00 5.92 5.97 6.70 8.77 8.90 7.86 9.40 8.30 8.50 Dis- charge (tf/s) 190,000 100,000 3,500 262 65,000 41,600 12,000 31,000 16,000 11,000 1,200 110 45,000 26,500 337 1,890 480 2,900 385 898 380 1,270 910 760 3,000 52,700 1,590 1,280 800 664 1,500 1,450 2,420 2,000 240 236 1,470 1,250 Significant floods during 1970-89 Date (month/ day/year) 10/02/83 8/20/71 9/30/71 10/04/83 10/09/77 8/15/84 8/01/74 10/09/77 10/02/83 10/02/83 10/09/77 9/07/75 10/09/77 10/02/83 7/--/71 7/08/74 10/01/83 7/20/70 7/19/70 9/25/76 8/17/71 10/10/77 10/02/83 7/19/71 8/12/72 7/20/70 8/17/71 9/25/76 8/23/82 Stage (ft) 33.00 6.10 5.30 " 10.21 10.20 12.94 15.50 12.40 13.70 6.10 7.13 16.70 16.34 5.68 6.51 4.20 -- 4.46 6.91 11.41 21.80 22.20 - 5.92 -- 8.77 7.86 8.30 Dis- charge (ft'/s) 100,000 3,500 262 35,000 12,000 12,000 17,100 31,000 16,200 16,000 1,200 110 26,500 45,000 337 1,890 2,900 898 1,270 910 3,000 23,700 52,700 1,590 800 1,500 2,420 240 1,470 Regu- lated during flood1 Y N N Y N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 20-50 20-40 20-40 25-50 >100 >100 40-50 >100 30-40 >100 10-25 10-25 40-60 >100 10-25 20-50 >100 25-50 10-25 10-25 40-70 40-60 >100 25-50 15-40 15-40 15-40 <10 15-25 98 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 25) 09483100 09483200 09483250 09484000 09484200 09484580 09484590 09484600 09485000 09485450 09485550 09485570 09485900 09485950 09486000 09486500 09486800 09487000 09487140 09488600 09489000 09489070 09489080 Station name Tanque Verde Creek near Tucson, AZ Agua Caliente Wash tributary near Tucson, AZ Rob Wash at Tucson, AZ Sabino Creek near Tucson, AZ Bear Creek near Tucson, AZ Barrel Canyon near Sonoita, AZ Davidson Canyon Wash near Vail, AZ Pantano Wash near Vail, AZ Rincon Creek near Tucson, AZ Pantano Wash (at Broadway Boulevard) at Tucson, AZ Arcadia Wash at Tucson, AZ Alamo Wash at Tucson, AZ Pima Wash near Tucson, AZ Geronimo Wash near Tucson, AZ Rillito Creek at La Cholla Blvd near Tucson, AZ Santa Cruz River at Cortaro, AZ Altar Wash near Three Points, AZ Brawley Wash near Three Points, AZ San Joaquin Wash near Tucson, AZ Silver Reef Wash near Casa Grande, AZ Santa Cruz River near Laveen, AZ North Fork of East Fork Black River near Alpine, AZ Hannagan Creek near Hannagan Meadow, AZ Total drainage area (mi2) 43.0 2.04 2.08 35.5 16.3 14.1 50.5 457 44.8 599 2.72 9.58 4.93 2.15 918 3,503 465 776 0.45 12.80 8,581 38.1 1.61 Period of record 1960-85 1965-80 1971-90 1932-94 1960-74, 1979 1962-76 1968-81 1958-94 1953-94 1979-81, 1984, 1988-94 1966, 1968-83 1976-77, 1979-84, 1986-92 1964-81, 1984 1964-81 1915-81, 1984 1940-47, 1950-85, 1990-92, 1994 1966-80, 1993-94 1940, 1962, 1966-81, 1984, 1992-94 1969-81 1950, 1963-75 1940-46, 1948-94 1966-78 1964-76 Water year 1984 1971 1982 1993 1979 1979 1971 1970 1958 1971 1984 1971 1988 1979 1984 1971 1984 1929 1984 1970 1984 1970 1981 1976 1971 1950 1984 1973 1973 1975 Stage (ft) 7.39 8.39 4.83 7.60 11.76 5.40 6.87 7.95 24.00 10.50 8.60 6.46 7.34 12.92 17.20 16.56 .. 24.00 16.57 13.85 12.07 15.80 6.60 7.31 8.75 11.50 19.74 4.64 6.51 10.57 Dis- charge (ft3^) 8,600 430 1,900 12,900 7,400 1,400 1,900 6,860 38,000 9,660 11,000 1,210 4,000 1,890 460 705 29,700 24,000 65,000 22,000 19,100 13,700 520 480 1,400 ~ 33,000 1,070 70 48 Significant floods during 1970-89 Date (month/ day/year) 10/02/83 8/19/71 8/23/82 9/06/70 12/18/78 12/18/78 8/--/71 7/20/70 9/22/81 8/19/71 10/01/83 8/17/71 8/20/88 10/01/83 8/12/71 10/02/83 10/02/83 9/04/70 10/01/83 7/28/81 8/03/71 10/04/83 4/17/73 10/19/72 Stage (ft) 7.39 8.39 4.83 10.21 11.76 5.40 6.87 7.95 13.25 10.50 8.60 6.46 7.34 17.20 16.56 - 16.57 13.85 12.07 6.60 8.75 19.74 4.64 6.51 Dis- charge (tf/s) 8,600 430 1,900 7,730 7,400 1,400 1,900 6,860 13,000 9,660 11,000 1,210 4,000 460 705 29,700 65,000 22,000 19,100 520 1,400 33,000 1,070 70 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N Y N N Recur- rence interval (years) 25-50 10-25 25-50 40-50 40-50 25-50 10-25 25-50 10-20 40-50 10-25 10-25 10-25 25-50 25-50 >100 >100 50-100 50-100 10-25 10-25 5-15 15-40 40-70 Significant Floods, 1970 Through 1989, Arizona 99 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1 994 Station number (fig. 25) 09489100 09489200 09489500 09489700 09490800 09491000 09492400 09494000 09497500 09497800 09497900 09497980 09498600 09498800 09498870 09498900 09499000 09501300 09502000 09502700 09502800 09503700 09503750 09503800 09504400 Station name Black River near Maverick, AZ Pacheta Creek at Maverick, AZ Black River below pumping plant near Point of Pine, AZ Big Bonito Creek near Fort Apache, AZ North Fork White River near Greer, AZ North Fork White River near McNary, AZ East Fork White River near Fort Apache, AZ White River near Fort Apache, AZ, mile 4.5 Salt River near Chrysotile, AZ, mile 34.8 Cibecue Creek near Chrysotile, AZ Cherry Creek near Young, AZ Cherry Creek near Globe, AZ Cristopher Creek tributary near Kohl's Ranch, AZ Tonto Creek near Gisela, AZ Rye Creek near Gisela, AZ Gold Creek near Payson, AZ Tonto Creek above Gun Creek near Roosevelt, AZ Tortilla Creek at Tortilla Flat, AZ Salt River below Stewart Mountain Draw, AZ Crookton Wash near Seligman, AZ Williamson Valley Wash near Paulden, AZ Verde River near Paulden, AZ Limestone Canyon near Paulden, AZ Volunteer Wash near Bellemont, AR Munds Canyon tributary near Sedona, AZ Total drainage area (mi2) 315 14.8 560 119 40.2 78.2 38.8 632 2,849 295 62.1 200 0.66 430 122 6.44 675 24.30 6,232 6.00 255 2,507 14.5 131 1.15 Period of record 1963-80, 1982, 1984 1958-80 1954-94 1958-81 1966-78 1946, 1948-85 1958-94 1958-94 1916, 1925-94 1959-94 1963-78 1966-94 1966-76 1965-75 1963, 1966-85 1963-76, 1979 1941-94 1966-83, 1992-94 1935-94 1963-76, 1978-80 1965-85 1963-94 1969-76, 1978-80 1966-76, 1978-80 1964-77, 1979-80 Water year 1984 1973 1973 1979 1973 1984 1984 1961 1979 1993 1977 1973 1979 1970 1970 1970 1970 1993 1970 1971 1980 1984 1978 1983 1993 1971 1978 1970 Stage (ft) 9.78 4.36 18.00 9.04 4.15 6.78 5.40 5.70 15.71 18.33 17.30 8.93 16.90 9.84 29.20 14.10 11.94 17.95 18.20 13.23 .. 17.50 3.72 9.96 14.25 16.51 6.55 11.10 Dis- charge (ft3/s) 14,000 323 17,900 4,510 510 2,310 2,700 663 14,600 76,600 22,200 7,290 15,700 265 38,000 44,400 2,800 72,500 53,000 7,500 64,000 33,300 480 14,800 23,200 4,100 2,300 705 Significant floods during 1970-89 Date (month/ day/year) 10/02/83 5/13/73 10/19/72 10/02/83 12/18/78 4/28/73 10/02/83 10/01/83 12/18/78 12/18/78 2/15/80 9/02/77 2/15/80 10/19/72 1/17/79 9/05/70 9/05/70 9/05/70 9/05/70 3/02/78 2/15/80 9/01/71 1/19/79 2/16/80 3/01/78 9/23/83 2/20/80 8/12/71 3/01/78 9/05/70 Stage (ft) 9.78 4.36 18.00 17.30 9.04 4.15 6.78 5.40 15.71 17.35 16.06 17.30 11.67 8.93 16.90 9.84 29.20 14.10 11.94 16.50 7.00 13.23 _. -- 3.72 9.96 12.72 16.51 6.55 11.10 Dis- charge (ft3/s) 14,000 323 17,900 17,300 4,510 510 2,310 2,700 14,600 70,400 58,300 22,200 10,600 7,290 15,700 265 38,000 44,400 2,800 57,200 61,400 7,500 54,000 64,000 480 14,800 15,700 4,100 2,300 705 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N Y Y N N N N N N Recur- rence interval (years) 25-50 25-50 40-50 40-50 25-50 >50 75-100 >100 40-60 30-35 20 50-100 10 <10 25-50 30-60 10-25 >100 25-50 20-25 25 10-25 25-50 25-50 10-25 25-50 25-50 15-40 10-25 10-25 100 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 25) 09504500 09505200 09505220 09505250 09505300 09505350 09505550 09505600 09505800 09507600 09507700 09507980 09510000 09510070 09510080 09510100 09510150 09510170 09510200 09511300 09512100 09512160 Station name Oak Creek near Cornville, AZ Wet Beaver Creek near Rimrock, AZ Rocky Gulch near Rimrock, AZ Red Tank Draw near Rimrock, AZ Rattlesnake Canyon near Rimrock, AZ Dry Beaver Creek near Rimrock, AZ Verde River below Camp Verde, AZ Dirty Neck Canyon near Glints Well, AZ West Clear Creek near Camp Verde, AZ East Verde River near Pine, AZ Webber Creek above West Fork Webber Creek near Pine, AZ East Verde River near Childs, AZ Verde River below Bartlett Draw, AZ West Fork Sycamore Creek above McFarland near Sunflower, AZ West Fork Sycamore Creek near Sunflower, AZ East Fork Sycamore Creek near Sunflower, AZ Sycamore Creek near Sunflower, AZ Camp Creek near Sunflower, AZ Sycamore Creek near Fort McDowell, AZ Verde River near Scottsdale, AZ Indian Bend Wash at Scottsdale, AZ Indian Bend Wash at McDowell Road, Total drainage area (mi2) 355 111 1.40 48.0 24.6 142 4,653 3.42 241 6.34 4.79 331 6,188 4.58 9.80 4.49 52.3 2.60 164 6,615 139 ' -- Period of record 1938, 1941^6, 1948-94 1962-94 1960-82, 1986-92 1958-78 1958-80 1961-94 1970, 1972-80 1965-75, 1979 1965-94 1962-74 1959-74 1961-66, 1968-94 1938^t8, 1950-94 1966-74, 1978, 1983-86 1962-74, 1978-79 1961-86 1962-76 1963-79, 1991-94 1960-94 1961-94 1943, 1961-84 1961-79 Water year 1980 1938 1993 1970 1980 1970 1980 1970 1979 1970 1993 1970 1970 1970 1993 1978 1970 1970 1970 1970 1978 1970 1980 1978 1972 1972 1978 Stage (ft) 16.30 23.00 17.21 2.78 12.69 11.90 14.35 21.27 7.88 13.22 6.40 4.36 19.20 19.80 25.90 5.50 9.50 9.50 22.00 5.05 19.70 18.30 18.30 4.90 8.01 9.99 Dis- charge (tf/s) 26,400 16,000 1,550 179 10,500 4,000 26,600 55,000 210 24,800 2,820 1,220 23,500 20,100 101,000 1,700 3,480 1,940 16,100 402 24,200 98,000 96,000 21,000 14,300 3,400 Significant floods during 1970-89 Date (month/ day/year) 12/19/78 2/19/80 2/19/80 9/05/70 9/05/70 2/14/80 9/05/70 12/18/78 12/19/78 10/19/72 12/18/78 9/05/70 9/05/70 9/05/70 3/02/78 2/15/80 9/05/70 9/05/70 9/05/70 9/05/70 3/02/78 9/05/70 3/02/78 3/02/78 2/16/80 6/22/72 6/22/72 Stage (ft) 16.00 16.30 13.96 -- 12.69 11.90 14.35 12.20 21.27 7.87 11.60 6.40 4.36 19.20 25.90 25.40 5.50 9.50 9.50 22.00 5.05 19.70 16.00 18.30 4.90 8.01 Dis- charge (tf/s) 25,100 26,400 10,900 1,550 10,500 4,000 26,600 24,200 55,000 210 22,400 2,820 1,220 23,500 101,000 97,300 1,700 3,480 1,940 16,100 402 24,200 17,900 96,000 98,000 21,000 14,300 Regu- lated during flood1 N N N N N N N N N N N N N N Y Y N N N N N N N Y Y N N Recur- rence interval (years) 20-25 25 15-30 >100 50-100 15^*0 25-50 25-50 10-25 <10 25-50 10-25 25-50 15-25 3Q-40 25 10-25 25-50 50-100 10-25 5-20 25-50 15-25 50-100 50-100 >100 20-50 Scottsdale, AZ Significant Floods, 1970 Through 1989, Arizona 101 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 25) 09512170 09512400 09512500 09512600 09513650 09513780 09513800 09513860 09513970 09515500 09516500 09516800 09517000 09517200 09517280 09517400 09519500 09519750 09519760 Station name Salt River at Jointhead Dam, Phoenix, AZ Cave Creek at Phoenix, AZ Agua Fria River near Mayer, AZ Turkey Creek near Cleator, AZ Agua Fria River at El Mirage, AZ New River near Rock Springs, AZ New River at New River, AZ Skunk Creek near Phoenix, AZ Agua Fria River at Avondale, AZ Hassayampa River at Box Damsite near Wickenburg, AZ Hassayampa River near Morristown, AZ Jack Rabbit Wash near Tonopah, AZ Hassayampa River near Arlington, AZ Centennial Wash tributary near Wenden, AZ Tiger Wash near Aguila, AZ Winters Wash near Tonopah, AZ Gila River below Gillespie Dam, AZ Bender Wash near Gila Bend, AZ Sauceda Wash near Gila Bend, AZ Total drainage area (mi2) 13,225 252 585 89.4 1,628 67.3 83.3 64.6 2,066 417 796 137 1,470 2.79 85.2 47.8 49,650 68.8 126 Period of record 1890-91, 1895, 1905-07, 1909, 1916, 1920, 1927, 1932, 1937-38, 1941, 1960, 1965-66, 1970, 1973, 1978-80 1943, 1958-90 1940-94 1980-92 1963-94 1962-94 1961-82 1960-93 1960-82 1925, 1927, 1937-38, 1946-82 1939-47, 1954, 1956, 1964-81, 1983-94 1964-79, 1983, 1991-94 1961-80, 1983-94 1963-79, 1983, 1991-94 1963-79, 1983, 1991-94 1962-79 1891, 1921-94 1963-79, 1983, 1992, 1994 1963-79, 1990-94 Water year 1891 1979 1943 1966 1980 1980 1979 1970 1970 1978 1964 1970 1979 1968 1970 1970 1983 1970 1993 1970 1970 1976 1891 1980 1983 1976 Stage (ft) - 10.30 .. 11.65 15.76 11.51 11.70 13.50 9.98 12.34 10.48 12.24 6.48 12.70 34.60 19.00 11.20 8.40 12.50 4.66 10.20 10.10 - 18.81 8.49 5.92 Dis- charge (ft3/s) 300,000 126,000 9,000 766 33,100 5,230 58,400 18,600 19,500 18,000 11,500 9,650 29,300 20,000 58,000 47,500 13,000 39,000 11,400 720 4,550 3,640 250,000 178,000 3,610 3,150 Significant floods during 1970-89 Date (month/ day/year) 2/16/80 8/05/74 2/19/80 8/29/88 2/19/80 12/19/78 9/05/70 3/02/78 9/05/70 9/05/70 12/19/78 9/05/70 9/05/70 9/10/84 9/-/S3 9/05/70 3/02/78 9/05/70 8/20/70 9/25/76 12/20/78 2/16/80 10/05/83 2/--/S3 9/26/76 Stage (ft) 9.30 9.30 15.76 13.98 11.51 11.70 13.50 9.40 9.98 12.24 6.48 34.60 19.00 16.18 11.20 8.40 5.60 4.66 10.20 10.10 17.06 18.81 15.37 8.49 5.92 Dis- charge (ft3/s) 170,000 3,460 33,100 25,500 5,230 58,400 18,600 13,600 19,500 9,650 29,300 58,000 47,500 26,700 13,000 39,000 20,000 720 4,550 3,640 125,000 178,000 95,200 3,610 3,150 Regu- lated during flood1 Y Y N N N Y N N N N N N N N N N N N N N Y Y Y N N Recur- rence interval (years) 75-100 >100 >100 40-50 10-25 >100 20-35 10-25 15-30 15-25 25-50 >100 >100 40-50 20-40 50-100 15-30 15-30 20-40 25-50 25-50 75-100 20-50 10-20 5-20 102 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 4. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arizona Continued Total Station drainage number area (fig. 25) Station name (mi2) Maximum stage and discharge for period of record through 1994 Dis- Periodof Water Stage charge record year (ft) (ft3/s) Significant floods during 1970-89 Regu- Recur- Date Dis' lated rence (month/ Stage charge during interval day/year) (ft) (ft3/s) flood1 (years) 09519800 09520100 09520110 09520160 09520170 09520200 09520300 09520350 09535100 09535300 Gila River below Painted Rock Dam, AZ Military Wash near Sentinel, AZ Hot Shot Arroyo near Ajo, AZ Gibson Arroyo at Ajo, AZ Rio Cornez near Ajo, AZ Black Gap Wash near Ajo, AZ Alamo Wash tributary near Ajo, AZ Mohawk Pass Wash at Mohawk, AZ San Simon Wash near Pisinimo, AZ Vamori Wash at Kom Vo, AZ 50,910 8.70 0.44 2.18 243 12.1 0.90 0.09 569 1,250 1960-94 1963-79, 1983, 1991-94 1966-81 1967-81 1967-80 1962-79 1963-76, 1978-80, 1982-93 1963-76, 1980 1972-94 1972-94 1993 1974 1983 1976 1970 1976 1979 1972 4- 1970 1976 1984 16.79 5.35 6.80 6.68 7.60 10.41 9.35 4.45 4.70 10.82 10.54 32,000 1,530 1,420 240 1,800 8,030 940 510 117 12,500 10,400 5/03/83 8/02/74 9/05/76 8/02/70 9/04/76 7/20/79 8/31/72 8/01/70 9/24/76 10/03/83 9.36 5.35 6.68 7.60 10.41 9.35 4.45 4.70 10.82 10.54 9,190 1,530 240 1,800 8,030 940 510 117 12,500 10,400 Y N N N N N N N N N 10-30 10-25 10-25 >50 10-25 10-25 25-50 10-25 50-100 >100 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Arizona 103 Arkansas Hydroclimatology Arkansas is located in the south-central United States. The weather in Arkansas is affected by the prevailing westerlies, which are part of the atmosphere's general circu- lation pattern. The weather systems typically move from west to east. The primary source of moisture is the Gulf of Mexico, and the Pacific Ocean is a secondary source. Mean annual precipitation in Arkansas ranges from about 40 in. in the Arkansas Valley north of the Ouachita Mountains to 56 in. in the Ouachita Mountains (Paulson and others, 1991). Flooding characteristics in Arkansas depend on the season. In the winter, flooding is generally widespread and lasts for several days. Flooding in the summer is typically local and short-lived. On the basis of regionalization procedures that relate flood characteristics to water- shed and climatic characteristics, the magnitude of maximum discharges for streams in Arkansas is dependent on drainage area of the basin, channel slope, and channel length. In the upland area of the State, mean basin elevatioja and mean annual precipitation replace channel length as factors affecting maximum discharge (Jennings and others, 1994). Significant Floods The most extensive flood in Arkansas during 1970-89 was the flood of Decem- ber 1982. Thirty-two percent of the State's streamflow-gaging stations recorded signifi- cant discharges. The flood mostly affected northern and western Arkansas. On Decem- ber 3, 1982, rainfall amounts exceeded 12 in. in 24 hours (Paulson and others, 1991). Maximum discharges matching or exceeding the 100-year recurrence interval were recorded at 21 gaging stations, and maximum discharges with at least a 25-year recur- rence interval occurred at 27 additional gaging stations. Several tornados caused dam- age along the eastern edge of the flooded areas. During 1973 and 1974, Arkansas had unusually large amounts of precipitation. A flood during June 1974 resulted in discharges with 100-year recurrence intervals at six streamflow-gaging stations. Thirteen percent of the gaged streams recorded significant discharges during these years. The location of streamflow-gaging stations in Arkansas that had significant floods for 1970-89 is shown in figure 26 by station number. The specific data for each signifi- cant flood are listed in table 5. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geo- logical Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geological Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375,591 p. 104 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Base from U.S. Geological Survey digital data, 1:2,000,000,1994 LOUISIANA Albers Equal-Area Conic projection Standard parallels 29°30" and 45°30". central meridian -96°00' 0 20 40 60 KILOMETERS EXPLANATION Ouachita Mountains 07365900 EI Streamflow-gaging station and number Figure 26. Location of streamflow-gaging stations with significant floods during 1970-89 for Arkansas. Significant Floods, 1970 Through 1989, Arkansas 105 Table 5. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arkansas [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 26) 07040100 07040450 07046530 07046600 07047000 07047200 07047600 07047820 07047880 07047900 07047902 07047924 07047942 07047950 07047970 07047975 07048000 07048600 07049000 Station name St. Francis River at St. Francis, AR St. Francis River at Lake City, AR Ditch number 42 at Hickman, AR Right hand chute of Little River at Rivervale, AR St. Francis River Floodway near Marked Tree, AR (Dam) Ditch number 45 near Lepanto, AR Tyronza River near Tyronza, AR Murray Creek near Jonesboro, AR Pope Creek tributary at Bird Eye, AR St. Francis Bay at Riverfront, AR St. Francis River at latitude of Wittsburg, AR Crooked Bayou tributary at State Highway 149 at Hughes, AR L'Anguille River near Colt, AR L'Anguille River at Palestine, AR Mississippi River at Helena, AR Dog Branch at St. Paul, AR West Fork White River at Greenland, AR White River near Fayetteville, AR War Eagle Creek near Hindsville, AR Total drainage area (mi2) 1,772 2,374 1.08 2,106 4,644 2.16 290 1.38 0.08 6,475 0.48 535 786 941,700 1.23 83.10 400 263 Period of record 1916-93 1917-93 1963-82 1939-94 1935-70, 1980-93 1962-85 1939-74, 1980-93 1960-83, 1987-88, 1991-92, 1994 1963-93 1935-93 1936-75, 1977, 1979, 1981-93 1963-82 1971-94 1933, 1935-37, 1939, 1943-85, 1990-93 1828, 1844, 1849-51, 1858-59, 1862, 1865, 1867, 1872-1993 1961-81 1946-83 1964-94 1943, 1953-77, 1985-94 Water year 1935 1979 1937 1973 1979 1989 1989 1966 1973 1974 1988 1950 1973 1978 1979 1937 1980 1985 1988 1983 1937 1912 1937 1973 1960 1986 1943 1986 Stage (ft) 28.20 13.30 12.83 13.28 13.87 27.82 8.83 8.84 30.86 31.61 14.20 7.73 38.90 -- 12.63 14.49 17.34 29.19 39.70 60.21 10.60 14.50 30.45 28.10 28.49 Dis- charge (ft3/s) 39,200 42,700 36,700 163 35,600 33,697 57,292 20,000 220 220 11,090 15,660 1,330 511 54,700 74,100 625 35,200 16,300 22,803 2,041,000 1,968,000 956 34,700 81,600 50,000 49,000 Significant floods during 1970-89 Date (month/ day/year) 4/02/79 12/26/82 2/15/89 4/21/73 4/02/79 12/29/82 4/19/73 4/02/75 4/06/79 2/20/89 2/22/89 4/22/74 3/01/87 1 1/27/87 2/16/89 5/27/73 9/13/78 5/15/83 4/28/73 4/08/79 4/28/73 2/23/89 7/22/80 11/30/84 5/19/83 4/07/75 4/22/73 11/24/73 1 1/25/73 11/19/85 11/19/85 Stage (ft) 24.83 25.24 12.79 12.58 12.83 12.75 13.28 13.87 8.84 26.00 30.86 28.59 14.20 7.73 6.12 38.90 -- 12.63 14.49 29.19 10.60 14.30 30.29 30.45 28.49 Discharge (ft3/s) 27,400 24,802 27,269 30,400 42,700 28,815 163 33,800 35,600 33,697 57,292 220 7,889 11,091 17,258 1,330 511 144 49,900 54,700 62,600 58,640 625 35,200 22,803 1,790,000 956 33,300 80,200 81,600 49,000 Regu- lated during flood1 Y Y Y Y Y Y N N N N Y N N N N N N N Y Y Y N N N Y N N N N N Recur- rence interval (years) 50-100 25-50 50-100 10-25 >100 10-25 -- 10-25 10-25 10-25 25-50 10-25 10-25 >100 >100 25-50 >100 25 10-25 25-50 -- >100 >100 50-100 25-50 25-50 25-50 25-50 25-50 50-100 106 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 5. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arkansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 26) 07049691 07050400 07050500 07054400 07055000 07055650 07055800 07056000 07057000 07057300 07060600 07060710 07060830 07061000 07064000 07068870 07068890 07069000 07069250 07069500 07072000 07072200 07072500 07073000 07073500 Station name White River at Beaver Dam near Eureka Springs, AR Freeman Branch at Berryville, AR Kings River near Berryville, AR Charley Creek near Omaha, AR White River near Flippin, AR Smith Creek near Boxley, AR Dry Branch near Vendor, AR Buffalo River near St. Joe, AR Buffalo River near Rush, AR Dodd Creek tributary near Mountain Home, AR Band Mill Creek near Brockwell, AR North Sylamore Creek near Fifty Six, AR Wolf Bayou near Drasco, AR White River at Batesville, AR Black River near Corning, AR Fourche River tributary at Middlebrook, AR Fourche River above Pocahontas, AR Black River at Pocahontas, AR Brush Creek near Mammoth Spring, AR Spring River at Imboden, AR Elevenpoint River near Ravenden Springs, AR Hubble Creek near Pocahontas, AR Black River at Black Rock, AR Strawberry River near Evening Shade, AR Piney Fork at Evening Shade, AR Total drainage area (mi2) 1,192 0.73 527 3.41 6,081 8.35 6.15 829 1,096 0.76 1.25 58.1 0.27 11,070 1,749 0.19 229 4,845 0.48 1,183 1,134 1.33 7,369 217 99.2 Period of record 1966-84 1961-80 1927, 1939-94 1962-81, 1983 1927, 1929-94 1963-83 1962-81, 1983 1915, 1940-94 1915, 1927, 1929-74, 1983 1961-86 1961-85 1966-85, 1987-94 1963-83 1904-58, 1979-94 1915-16, 1919-94 1961-81 1965-79 1927, 1937-94 1961-92, 1994 1915, 1937-94 1930-33, 1936-94 1961-85 1905-94 1939-79 1939-94 Water year 1973 1977 1985 1986 1983 1927 1983 1974 1983 1983 1983 1985 1975 1983 1983 1916 1945 1973 1977 1927 1973 1983 1983 1977 1983 1915 1949 1983 Stage (ft) 8.66 13.79 38.91 16.54 45.40 13.74 15.80 15.30 53.75 55.80 13.58 12.65 20.60 9.49 31.90 16.92 8.69 25.40 25.90 15.05 38.12 29.06 12.40 31.51 31.90 26.59 30.32 Dis- charge (ft3/s) 25,900 525 77,510 66,000 4,850 240,000 7,200 6,830 5,000 158,000 215,000 800 1,830 25,200 283 382,000 48,600 330 42,600 80,000 960 244,000 162,000 1,160 190,000 160,000 31,000 50,400 Significant floods during 1970-89 Date (month/ day/year) 4/23/73 4/30/77 10/25/84 11/19/85 12/03/82 9/27/71 3/29/85 12/03/82 12/03/82 11/25/73 12/03/82 12/03/82 9/05/85 9/20/75 12/03/82 12/03/82 12/03/82 3/30/75 4/22/73 3/28/77 4/25/73 12/07/82 4/22/73 5/22/74 3/28/77 12/03/82 12/03/82 3/28/77 3/29/77 12/04/82 3/28/77 12/03/82 Stage (ft) 8.66 13.79 38.91 16.54 13.61 14.08 13.74 15.30 45.41 53.75 55.80 13.58 12.65 20.60 9.49 29.27 -- 8.69 25.40 25.00 25.22 15.05 14.25 28.78 38.12 29.06 12.40 28.10 31.51 25.38 30.32 Discharge (ftVs) 25,900 525 77,510 66,000 4,850 31,300 31,800 7,200 5,000 111,000 158,000 215,000 800 1,830 25,200 283 312,000 28,200 330 42,600 66,000 66,300 960 849 82,700 244,000 162,000 1,160 109,000 190,000 24,000 50,400 Regu- lated during flood1 Y N N N N Y Y N N N N N N N N N Y Y N N Y Y N N N N N N Y Y N N Recur- rence interval (years) >100 10-25 50-100 25-50 >100 10-25 10-25 >100 25-50 10-25 >100 >100 25-50 >100 25-50 10-25 50-100 10-25 25 10-25 10-25 10-25 25-50 25 10-25 >100 >100 25-50 10-25 50-100 10-25 >100 Significant Floods, 1970 Through 1989, Arkansas 107 Table 5. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arkansas Continued Maximum stage and discharge for period of record through 1 994 Station number (fig. 26) 07074000 07074200 07074250 07074500 07074850 07074900 07074950 07075000 07075300 07075600 07075800 07076000 07076620 07076630 07076750 07076870 07077100 07077200 07077340 07077920 07077940 07077950 07078170 07078210 07195450 Station name Strawberry River near Poughkeepsie, AR Dry Branch tributary near Sidney, AR Reeds Creek near Strawberry, AR White River at Newport, AR White River near Augusta, AR Trace Creek tributary near Marshall, AR Tick Creek near Leslie, AR Middle Fork of Little Red River at Shirley, AR South Fork of Little Red River at Clinton, AR Choctaw Creek tributary near Choctaw, AR Dill Branch tributary near Ida, AR Little Red River near Heber Springs, AR Little Red River near Searcy, AR Key Branch near Searcy, AR White River at Georgetown, AR Pigeon Roost Creek at Butlerville, AR Big Creek near Boydsville, AR Big Creek tributary near Boydsville, AR Sugar Creek tributary near Walcott, AR Big Creek at Goodwin, AR Spring Creek near Aubrey, AR Big Creek at Poplar Grove, AR Little Lagrue Bayou tributary near Dewitt, AR Tarleton Creek tributary at Ethel, AR Ballard Creek at Summers, AR Total drainage area (mi2) 473 1.22 34.9 19,860 20,464 0.26 1.58 302 148 1.36 0.26 1,153 1,648 0.66 23,387 23.0 12.8 1.58 0.68 31.1 38.0 448 1.51 0.20 14.6 Period of record 1937-94 1961-81, 1983 1963-83 1886-1994 1933, 1935, 1937-80, 1984-94 1961-86 1961-83 1935, 1939-94 1962-94 1964-93 1964-94 1927-35, 1937-87 1984-94 1961-82, 1986-88, 1990-92, 1994 1913-80, 1984-94 1961-94 1962-81, 1994 1962-85, 1989-94 1963-86 1961-94 1962-81, 1993-94 1971-94 1961-80 1963-86 1963-86 Water year 1983 1983 1975 1927 1989 1945 1983 1973 1983 1983 1983 1979 1949 1985 1988 1974 1985 1949 1974 1973 1979 1984 1973 1988 1980 1973 1973 1973 1986 1979 Stage (ft) 35.90 12.40 16.30 35.60 35.54 40.83 11.89 9.94 37.53 34.27 19.07 9.96 46.53 35.92 37.12 7.79 23.94 32.80 12.62 19.14 9.44 9.65 13.62 10.35 16.03 31.74 10.14 8.05 10.07 12.24 Dis- charge (ft3/s) 158,000 1,230 18,500 387,000 140,000 288 1,380 241,000 67,900 1,760 230 1 17,000 35,300 26,000 573 94,900 8,800 5,700 785 730 1,000 1,250 2,100 5,910 270 645 5,100 4,830 Significant floods during 1970-89 Date (month/ day/year) 12/03/82 12/03/82 3/28/75 12/05/82 5/11/84 2/18/89 12/03/82 4/22/73 12/03/82 3/28/77 12/03/82 12/03/82 9/04/85 3/10/73 4/02/79 2/05/83 11/27/84 11/24/73 5/13/84 4/05/85 4/21/74 2/26/87 4/19/73 12/03/78 4/19/73 12/25/87 7/22/80 4/23/73 4/19/73 4/19/73 11/19/85 Stage (ft) 35.90 12.40 16.30 34.00 32.24 35.54 11.89 9.94 37.53 26.43 34.27 19.07 14.68 9.64 18.33 35.92 7.79 21.68 23.94 12.62 12.38 19.14 9.44 13.62 10.35 16.03 31.74 10.14 8.05 10.07 Discharge (ft3/s) 158,000 1,230 .18,500 330,000 67,300 140,000 288 1,380 241,000 32,700 67,900 1,760 710 216 230 11,000 35,300 573 66,000 94,900 8,800 7,700 5,700 785 1,000 1,250 2,100 5,910 270 645 5,100 Regu- lated during flood1 N N N Y N Y N N N N N N N N N Y Y N N Y N N N N N N N N N N N Recur- rence interval (years) >100 10-25 >100 50-100 -- 25 25-50 >100 2-5 >100 >100 10-25 10-25 25 >100 -- 25 -- 25-50 25-50 25-50 10-25 >100 50-100 10 10-25 50-100 >100 5-10 108 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 5. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arkansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 26) 07195800 07196900 07249400 07249650 07249950 07252000 07256500 07257000 07257060 07257100 07257200 07257500 07258200 07258500 07259500 07260000 07260500 07260630 07260673 07260679 07261000 07261050 07261300 07261500 07261800 Station name Flint Creek at Springtown, AR Baron Fork at Dutch Mills, AR James Fork near Hackett, AR Mountain Fork near Evansville, AR Webber Creek tributary near Cedarville, AR Mulberry River near Mulberry, AR Spadra Creek at ClarksviUe, AR Piney Creek near Dover, AR Mikes Creek tributary near Ozone, AR Minnow Creek tributary near Hagerville, AR Little Piney Creek near Lamar, AR Illinois Bayou near Scottsville, AR Pack Saddle Creek tributary near Waldron, AR Petit Jean River near Booneville, AR Petit Jean River near Waveland, AR Dutch Creek at Waltreak, AR Petit Jean River at Danville, AR Jake Creek near Chickalah, AR West Fork Point Remove Creek near Hattieville, AR East Fork Point Remove Creek tributary near St. Vincent, AR Cadron Creek near Guy, AR Pine Mountain Creek tributary near Damascus, AR Tan-a-hill Creek near Boles, AR Fourche Lafave River near Gravelly, AR Brogan Creek near Rover, Total drainage area (mi2) 14.2 40.6 147 8.15 0.34 373 61.1 274 0.20 0.19 154 241 0.92 241 516 81.4 764 1.85 222 0.09 169 0.29 2.33 410 1.04 Period of record 1961-94 1958-94 1958-94 1962-81 1962-82, 1985-94 1928, 1939-94 1927, 1949, 1953-94 1949, 1951-93 1964-83 1962-94 1979-94 1943, 1948-94 1961-93 1939-94 1939-92 1927, 1946-94 1917-94 1961-80, 1983 1979-94 1967-94 1955-94 1961-81, 1983 1960-81 1939-87, 1989-94 1963-94 Water year 1974 1986 1968 1992 1971 1971 1983 1974 1983 1974 1970 1983 1983 1968 1939 1939 1945 1969 1939 1983 1983 1983 1983 1983 1974 1983 1983 Stage («) 17.51 14.81 23.00 23.06 11.41 7.71 23.66 19.93 33.87 10.98 6.62 15.35 27.49 9.42 23.42 29.95 32.23 22.38 31.82 14.58 26.62 8.24 29.29 13.50 13.50 32.45 10.65 Dis- charge (ft3/s) 14,600 20,900 30,000 8,410 5,120 274 70,200 27,400 111,000 166 176 13,300 130,000 689 43,200 62,600 37,100 24,500 70,800 2,200 64,100 102 24,200 573 3,100 162,000 1,260 Significant floods during 1970-89 Date (month/ day/year) 6/08/74 7/13/72 11/18/85 12/10/71 10/26/70 10/26/70 11/24/73 12/03/82 2/23/85 12/10/71 6/05/74 12/10/71 12/03/82 6/05/74 4/24/70 12/03/82 12/03/82 10/21/84 12/10/71 12/03/82 12/03/82 10/29/84 12/03/82 12/03/82 12/03/82 12/03/82 12/04/82 12/03/82 6/08/74 12/03/82 12/03/82 Stage (ft) 17.51 13.74 14.81 22.24 11.41 7.71 7.38 23.66 21.90 16.54 19.93 28.70 33.87 10.98 6.62 15.35 27.49 9.42 22.48 28.51 20.75 19.66 29.36 14.58 26.62 8.24 29.29 13.50 13.50 32.45 10.65 Discharge (tf/s) 14,600 17,100 20,900 17,500 5,120 274 220 70,200 59,700 18,000 27,400 74,600 111,000 166 176 13,300 130,000 689 30,800 9,100 18,400 15,000 47,500 2,200 64,100 102 24,200 573 3,100 162,000 1,260 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N Y N N Y N N N N N N N N Recur- rence interval (years) >100 5-10 10-25 10-25 25-50 10-25 10-25 25-50 10-25 10-25 >100 25-50 >100 10-25 25 2-5 >100 25-50 10-25 25-50 25-50 10-25 >100 >100 >100 25-50 25-50 >100 25-50 >100 50-100 AR Significant Floods, 1970 Through 1989, Arkansas 109 Table 5. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arkansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 26) 07263000 07263012 07263100 07263400 07263530 07263580 07263860 07264000 07264100 07265000 07265001 07339500 07340000 07340200 07340500 07340530 07341000 07341200 07341301 07341700 07344320 07348615 07355800 07355900 07356000 Station name South Fourche La Fave River near Hollis, AR Fourche La Fave near Aplin, AR Fourche La Fave River tributary near Perryville, AR Little Maumelle River at Ferndale, AR Fourche Creek at Red Gate, AR Rock Creek at 36th Street at Little Rock, AR Mile Branch near Tomberlin, AR Bayou Meto near Lonoke, AR White Oak Branch near Lonoke, AR Crooked Creek near Humphrey, AR Bayou Meto and Crooked Creek near Stuttgart, AR Rolling Fork near De Queen, AR Little River near Horatio, AR West Flat Creek near Foreman, AR Cossatot River near De Queen, AR Mill Slough tributary near Locksburg, AR Saline River near Dierks, AR Saline River near Lockesburg, AR Little River at Millwood Dam near Ashdown, AR Caney Creek near Hope, AR Mill Creek tributary near Fouke, AR Bayou Dorcheat near Bussey, AR Lewis Creek tributary near Mena, AR Big Fork tributary at Big Fork, AR Ouachita River near Mount Ida, AR Total drainage area (mi2) 210 957 1.47 15.0 32.4 20.5 2.75 207 8.41 79.2 653 182 2,662 10.7 360 0.64 121 256 4,119 12.9 1.44 229 0.65 0.19 414 Period of record 1942-94 1980-94 1962-94 1963-86, 1993-94 1979, 1981-93 1979, 1981-94 1963-79 1937, 1948-94 1961-86 1939-54, 1957-80 1936-80 1947, 1949-94 1915, 1930-94 1962-81, 1983 1938-94 1963-86 1920, 1939-94 1964-94 1967-84 1963-82 1961-83 1969-80 1961-94 1964-83 1942-94 Water year 1983 1985 1983 1983 1973 1985 1988 1989 1979 1988 1979 1973 1950 1937 1973 1947 1915 1983 1968 1983 1968 1968 1973 1974 1983 1974 1991 1983 1983 Stage (ft) 24.55 33.79 36.10 11.45 15.01 14.00 13.94 14.73 11.16 27.11 9.49 22.07 23.51 23.80 25.60 38.00 12.97 22.60 9.76 22.95 20.86 - 15.70 11.64 219.83 6.23 14.25 39.78 Dis- charge (ft3/s) 94,000 24,700 -- 1,150 10,800 6,100 10,500 -- 570 5,750 1,700 2,370 2,010 9,350 6,370 110,000 124,000 3,800 122,000 719 59,200 64,700 67,300 9,410 780 22,000 560 225 102,000 Significant floods during 1970-89 Date (month/ day/year) 12/03/82 10/20/84 12/03/82 3/21/85 3/10/73 10/19/84 12/25/87 12/08/78 12/29/87 12/08/78 5/03/73 5/03/73 3/27/77 12/10/71 12/02/82 12/10/71 10/13/73 12/26/82 7/02/83 12/03/82 5/13/73 8/31/74 12/03/82 6/08/74 10/31/72 12/03/82 12/10/71 12/03/82 Stage (ft) 24.55 33.79 11.45 9.61 15.01 14.00 13.94 11.16 27.11 9.49 22.07 23.80 16.12 32.84 12.97 21.88 18.05 9.76 17.33 20.52 - 15.70 11.64 219.83 6.19 14.25 38.62 39.78 Discharge (ft3/s) 94,000 24,700 1,150 720 10,800 6,100 10,500 570 5,750 1,700 2,370 6,370 7,650 65,100 3,800 103,000 26,500 719 12,900 59,600 67,300 9,410 780 22,000 559 225 95,500 102,000 Regu- lated during flood1 N Y N N N N N N N N Y N Y Y N N Y N Y Y Y N N N N N N N Recur- rence interval (years) >100 - 25-50 5-10 50-100 10-25 10 50-100 10-25 10-25 10-25 10-25 25-50 10-25 50-100 25-50 25-50 25-50 50-100 10-25 >100 10-25 25-50 25 25 >100 >100 110 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 5. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arkansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 26) 07356700 07357501 07357700 07359500 07359520 07359750 07360150 07361000 07361180 07361780 07362100 07362330 07362450 07362500 07363050 07363200 07363300 07363430 07363450 07364070 073641 10 07364125 07364165 07364260 07364550 Station name Barnes Branch near Mount Ida, AR Ouachita River at Blakely Mountain Dam near Hot Springs, AR Glazypeau Creek at Mountain Valley, AR Ouachita River near Malvern, AR Jackson Creek near Malvern, AR Little Sugarloaf Creek near Bonnerdale, AR Pearson Creek tributary near Dalark, AR Little Missouri River near Murfreesboro, AR South Fork Ozan Creek near Ozan, AR Bradshaw Creek near Hollywood, AR Smackover Creek near Smackover, AR Dunn Creek near Hampton, AR Cooks Creek near Fordyce, AR Moro Creek near Fordyce, AR Holly Creek tributary near Benton, AR Saline River near Sheridan, AR Hurricane Creek near Sheridan, AR East Fork Derrieusseaux Creek near Pine Bluff, AR Varnell Creek near Rison, AR Bear Creek near Strong, AR Nevins Creek tributary near Pine Bluff, AR Cane Creek at Star City, AR Upper Cutoff Creek near Monticello, AR Hanks Creek near Hamburg, AR Cany Creek tributary near Eldorado, AR Total drainage area (mi2) 1.85 1,105 3.84 1,585 2.95 2.32 0.42 380 17.7 3.36 385 13.6 5.02 240 1.44 1,123 204 0.66 0.28 5.62 0.75 4.93 18.8 20.90 0.13 Period of record 1961-81, 1983 1923, 1937-83 1961-86 1903-04, 1923-92 1962-81 1962-83 1961-81 1927-31, 1938-77 1963-91, 1994 1962-81 1939-94 1962-94 1962-81 1938, 1952-94 1962-86 1938-94 1960-93, 1995 1961-81 1964-86 1963-83 1961-89, 1991-92, 1994 1962-83 1963-83 , 1962-83 1961-83, 1985-94 Water year 1983 1945 1985 1990 1923 1974 1974 1973 1945 1927 1973 1974 1974 1966 1974 1958 1978 1988 1960 1973 1983 1983 1984 1973 1970 1974 1974 Stage («) 16.79 38.55 12.69 29.00 30.30 11.37 14.55 9.61 19.84 21.00 25.06 16.86 24.97 10.11 11.93 16.47 11.80 22.93 18.55 12.17 8.71 15.35 10.58 11.34 11.30 11.59 12.40 Dis- charge (ft3/s) 3,070 123,000 2,800 166,000 140,000 1,800 3,450 1,220 120,000 -- 8,360 1,140 52,700 4,240 2,120 26,800 2,760 76,800 52,300 1,020 214 950 600 2,890 4,720 2,300 978 Significant floods during 1970-89 Date (month/ day/year) 12/03/82 12/19/82 10/19/84 12/03/82 6/08/74 6/07/74 4/19/73 6/08/74 4/19/73 11/23/73 6/08/74 6/08/74 6/28/86 4/24/73 12/03/73 12/27/87 9/13/78 12/28/87 12/27/87 4/22/73 12/28/82 12/27/82 5/15/83 9/24/84 4/19/73 3/03/70 4/21/74 6/08/74 Stage (ft) 16.79 - 12.69 27.06 11.37 14.55 9.61 16.32 25.06 24.60 16.86 24.97 23.28 9.88 11.93 15.86 11.80 22.93 16.83 12.17 8.71 15.35 10.40 10.58 11.34 11.30 11.59 12.40 Discharge (ft3/s) 3,070 12,400 2,800 125,000 1,800 3,450 1,220 31,900 8,360 7,200 1,140 52,700 34,200 3,650 2,120 22,000 2,760 76,800 20,000 1,020 214 950 590 600 2,890 4,720 2,300 978 Regu- lated during flood1 N Y N Y N N N Y N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) >100 50-100 25 25-50 25-50 25-50 >100 25-50 >100 25-50 10-25 >100 25-50 25-50 10-25 25-50 >100 25-50 10-25 >100 10-25 25 25-50 25-50 50-100 50-100 10-25 >100 Significant Floods, 1970 Through 1989, Arkansas 111 Table 5. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Arkansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 26) 07365800 07365900 07367658 07367661 07367670 07367680 07367740 07369680 Station name Cornie Bayou near Three Creeks, AR Three Creeks near Three Creeks, AR Cypress Creek Canal number 19 tributary near Dumas, AR Boeuf River near Lake Village, AR Wards Bayou tributary at Montrose, AR Boeuf River near Eudora, AR Camp Bayou near Parkdale, AR Bayou Macon at Eudora, AR Total drainage area (mi2) 180 50.4 0.94 315 3.24 623 1.86 500 Period of record 1956-87, 1990-94 1956-78 1961-86 1946-91 1961-83 1939-92 1963-85 1932, 1938-92, 1994 Water year 1974 1974 1973 1979 1991 1974 1966 1991 1974 1973 1958 Stage (ft) 17.50 12.13 9.81 22.10 22.90 7.87 19.70 21.61 9.41 25.85 27.43 Dis- charge (ft3/s) 65,000 24,100 288 10,800 570 18,600 380 5,630 5,100 Significant floods during 1970-89 Date (month/ day/year) 6/08/74 6/08/74 4/24/73 3/16/73 12/06/78 4/21/74 1/21/79 4/21/74 3/20/73 2/05/75 Stage (ft) 17.50 12.13 9.81 20.90 22.10 7.87 19.02 9.41 25.85 22.80 Discharge (ft3/s) 65,000 24,100 288 9,940 10,800 570 17,500 380 5,630 4,400 Regu- lated during flood1 N N N N N ' N N N N N Recur- rence interval (years) >100 >100 25 10-25 25-50 10-25 25 50-100 10-25 Regulated during flood: N, no; Y, yes. 112 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 California Hydroclimatology California is located on the West Coast of the United States. It borders about 800 mi of the Pacific Ocean and makes up nearly two-thirds of the coastline between Canada and Mexico. Precipitation in Califor- nia is caused primarily by moisture-laden marine air moving in from the Pacific Ocean. A semipermanent high-pressure system located off the coast tends to reg- ulate the movement of Pacific storms and is a key fea- ture of the atmospheric-circulation patterns that determine California's climate (Paulson and others, 1991). Most of California's precipitation is received between November and March. California's mountain ranges induce precipitation and create "rain shadows" in the leeward valleys and plains. The combined effects of topography and atmospheric-circulation pat- terns result in mean annual precipitation that ranges from about 3 in. in the desert areas of southern Cali- fornia to 120 in. in the coastal mountains near the Ore- gon border (Paulson and others, 1991). Flooding is limited generally to the winter storm season, except in the southern deserts, where summer thunderstorms occasionally produce localized flash floods. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in California is dependent on drainage area of the basin, mean annual precipitation, and an eleva- tion index, which is the mean of elevations (in thou- sands of feet) at points along the main channel at 10 and 85 percent of the distances from the site to the divide (Jennings and others, 1994). Significant Floods The flood of February 1986 was the most exten- sive in California during 1970-89. Twenty-three per- cent of the streamflow-gaging stations in the State recorded significant discharges. The flood was caused by a storm that produced substantial rainfall and excessive runoff in the northern one-half of the State (California Department of Water Resources, 1988). A series of storms embedded in a flow of moist air from the southwest moved across the State. Rain continued for 12 consecutive days in many areas of northern Cal- ifornia. The largest total rainfall was 49.6 in., recorded at Bucks Lake in the Feather River Basin (Paulson and others, 1991). Storm totals of 20 to 30 in. were com- mon for many locations. Maximum discharges of record were measured on the Russian River at Guerneville (station 11467000, fig. 27) and the Napa River near Napa (station 11458000, fig. 27). California also had significant floods in 1980 and 1983. During the 1980 flood, 13 percent of the stream- flow-gaging stations in the State recorded significant discharges, and 17 percent had significant discharges during the 1983 flood. The 1980 flood was most severe in central and southern coastal California. The location of streamflow-gaging stations in Cal- ifornia that had significant floods for 1970-89 is shown in figure 27 by station number. The specific data for each significant flood are listed in table 6. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References California Department of Water Resources, 1988, California high water 1985-86: California Department of Water Resources Bulletin 69-86,107 p. Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, California 113 12$° 42° 122° 121° 120-43° C 3 3 D) 2 Tl O Oa w 40° 7 PACIFIC OCEAN EXPLANATION H489500 E Streamflow-gaging station and number Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' '19° Index map 60 MILES 40 60 KILOMETERS Figure 27. Location of streamflow-gaging stations with significant floods during 1970-89 for California. 3 (O CO 00to o SL 3" 37' '78° 777° PACIFIC OCEAN Index map EXPLANATION 10293000 si Streamflow-gaging station and number \ Base from U.S. Geological Survey digital data. 1:2,000,000,1994 \ Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 20 40 60 MILES _i______i \ I i ^n H ' \ 0 20 40 60 KILOMETERS Figure 27. Location of streamflow-gaging stations with significant floods during 1970-89 for California Continued. oI'£ BJ Oi_ ,0 o> O) o>c J= o (0 T3 O O O> (0 oI o>I I CO5 CO "o c o 1o CM 3 O) 116 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California [mi2, square miles; ft, feet above an arbitrary datum; ft^/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 09427520 09428530 09428560 09428570 09429010 09429500 09429600 10251100 10251300 10251400 10251600 10252550 10252700 10253250 10253255 10253320 10254050 10254730 10254970 10255550 10255700 10255800 10255810 10255820 10255825 Station name Colorado River below Parker Dam, CA-AZ Arch Creek near Earp, C A Colorado River tributary number 2 near Vidal, CA Colorado River tributary near Vidal, CA Colorado River at Palo Verde Dam, CA-AZ Colorado River below Imperial Dam, CA-AZ Colorado River below Laguna Dam, AZ Salt Creek near Stovepipe Wells, CA Amargosa River at Tecopa, CA Ibex Creek near Tecopa, CA Salsberry Creek near Shoshone, CA Caruthers Creek near Ivanpah, CA Creosote Creek near Cadiz, CA Granite Wash near Rice, CA Granite Wash number 2 near Rice, CA Quail Wash near Joshua Tree, CA Salt Creek near Mecca, CA Alamo River near Niland, CA New River at international boundary at Calexico, CA New River at outlet near Westmorland, CA San Felipe Creek near Julian, CA Coyote Creek near Borrego Springs, CA Borrego Palm Creek near Borrego Springs, CA Yaqui Pass Wash near Borrego, CA Yaqui Pass Wash number 2 near Borrego, CA Total drainage area Period of (mi2) record 182,700 1935-45, 1947-94 1.52 1959-73 0.39 1960-73 1.12 1960-73 186,200 1969-88 188,500 1972-81 1983-94 188,600 1972-91 1993-94 1974-88 3,090 1962-83 0.20 1959-73 0.01 1959-73 1.13 1964-94 0.02 1959-73 0.01 1960-73 0.02 1960-73 100 1964-79 269 1961-91 1961-94 1982-94 1962-94 89.2 1959-83 144 1951-86 21.8 1951-93 0.04 1960-73 0.04 1960-73 Water year 1937 1983 1971 1971 1971 1983 1983 1983 1977 1976 1984 1983 1969 1973 1973 1984 1979 1972 1970 1970 1978 1976 1983 1977 1988 1977 1980 1980 1976 1979 1955 1970 1970 Stage (ft) - 77.29 21.74 9.94 12.55 .. .. 12.88 4.81 4.87 16.00 18.34 14.33 12.99 5.38 5.75 11.34 4.58 4.71 3.33 14.30 16.90 .. -- 14.45 7.85 7.50 14.50 9.80 9.90 6.77 7.00 Dis- charge (ft3/!) 42,400 40,900 7,160 400 460 42,300 30,200 30,900 5,030 363 105 10,600 5,000 126 12 671 333 20 22 27 930 9,900 8,120 4,500 809 3,000 6,150 3,890 2,300 2,640 2,000 38 25 Significant floods during 1970-89 Date (month/ day/year) 6/29/83 10/05/83 8/19/71 8/11/71 8/11/71 6/30/83 8/18/83 8/19/83 2/09/76 8/19/83 10/03/72 10/03/72 8/25/82 7/21/84 8/13/72 8/14/70 8/14/70 1/10/78 9/24/76 3/02/83 8/17/77 3/03/83 8/24/88 9/13/76 8/17/77 2/21/80 8/17/77 2/21/80 8/15/77 8/16/79 8/16/70 8/16/70 Stage (ft) 77.29 76.26 21.74 9.94 12.55 .. - 4.81 16.00 14.33 12.99 5.22 5.38 11.34 4.58 4.71 3.33 14.30 16.90 - ~ 14.45 - ~ 7.85 - 7.50 7.50 9.80 6.77 7.00 Regu- Dis- lated charge during (fr'/s) flood1 40,900 38,800 7,160 400 460 42,300 30,200 30,900 363 10,600 126 12 614 671 20 22 27 930 9,900 8,120 4,500 4,000 809 2,500 3,000 6,150 3,840 3,890 2,160 2,640 38 25 Y Y N N N Y Y Y N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) -- ~ - - - - - - - 25-50 25-50 - - - 75-100 50-75 - - - - >100 15 15 50-75 50-75 15-20 25-50 Significant Floods, 1970 Through 1989, California 117 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1 994 Station number (fig. 27) 10255850 10255885 10257600 10257710 10258500 10259200 10259540 10260200 10260500 10260630 10260650 10260950 10262000 10263000 10264520 10264560 10264600 10276000 10293000 10295500 10296500 Station name Vallecito Creek near Julian, CA San Felipe Creek near Westmorland, CA Mission Creek near Desert Hot Springs, CA Chino Canyon Creek near Palm Springs, CA Palm Cyn Creek near Palm Springs, CA Deep Creek near Palm Desert, CA Whitewater River near Mecca, CA Pipes Creek near Yucca Valley, CA Deep Creek near Hesperia, CA Abondigas Creek above Lake Gregory at Crestline, CA Houston Creek below Lake Gregory at Crestline, CA West Fork Mojave River above Mojave River Forks Reservoir near Hesperia, CA Mojave River near Hodge, CA Mojave River at Afton, CA Amargosa Creek tributary near Leona Valley, CA Spencer Canyon Creek near Fairmont, CA Oak Creek near Mojave, CA Big Pine Creek near Big Pine, CA East Walker River near Bridgeport, CA Little Walker River near Bridgeport, CA West Walker River near Coleville, CA Total drainage area (mi2) 39.7 1,693 35.6 3.88 93.1 30.6 1,495 15.1 134 1.15 2.68 70.3 1,091 2,121 0.05 3.68 15.8 39.0 359 63.1 250 Period of record 1964-83 1961-88 1968-92, 1994 1975-84 1930-42, 1948-94 1962-94 1961-94 1959-79 1906-07, 1909-11, 1914-16, 1918, 1920-21, 1930-93 1980-83, 1985-93 1980-93 1975-94 1931-32, 1971-80, 1982-93 1930-32, 1953-78, 1980-94 1959-73, 1989 1959-73, 1978-81, 1983, 1986, 1989 1958-86, 1989 1908-10, 1920-78 1923-81, 1983-94 1945-86 1903-10, 1916-38, 1957-94 Water year 1976 1983 1976 1983 1969 1977 1980 1976 1984 1969 1990 1978 1969 1938 1978 1983 1993 1980 1993 1978 1980 1978 1969 1971 1978 1973 1932 1963 1963 1938 1907 Stage (ft) 6.30 6.47 19.00 3.33 6.40 5.93 7.29 7.84 10.27 - 5.87 3.57 3.84 - 13.45 6.32 11.21 7.31 7.69 5.41 17.45 8.80 10.40 12.10 13.54 10.53 6.55 4.64 3.22 .. 5.90 Dis- charge (ft3/*) 1,160 100 100,000 1,750 1,660 247 7,000 7,100 5,700 2,500 162 640 252 46,600 24,800 580 203 570 339 11,300 8,380 12,700 18,000 19 430 1,740 458 1,390 1,510 6,500 4,170 Significant floods during 1970-89 Date (month/ day/year) 9/10/76 9/10/76 8/17/83 8/15/77 7/20/79 2/21/80 9/10/76 8/14/84 7/20/79 3/04/78 3/04/78 2/27/83 1/29/80 2/10/78 2/10/78 3/05/78 11/29/70 2/10/78 5/14/73 3/04/78 9/05/78 7/02/80 6/03/86 3/08/86 5/30/83 Stage (ft) 6.30 19.00 3.33 5.93 6.38 7.29 7.84 10.27 - 3.57 13.45 6.32 7.31 8.80 5.30 12.10 13.54 10.53 7.48 4.55 4.56 2.87 4.83 Dis- charge (ftVs) 1,160 100,000 1,750 247 4,400 7,000 7,100 5,700 2,450 640 24,800 580 570 11,300 12,700 14,000 19 430 1,740 750 353 1,380 1,370 1,030 3,540 Regu- lated during flood1 N N N N N N N N N N Y N Y Y Y N N N N N N Y Y N N Recur- rence interval (years) - - - - 20-30 35-50 -- - - 15 - - - - 25-50 >100 >100 30-50 20-30 20-30 10-20 10-15 118 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 10336610 10336626 10336645 10336676 10336780 10337500 10338500 10339400 10340500 10343000 10356500 10358470 10359100 10359270 10359290 10359300 11012000 11012500 11013000 11013500 11015000 11023250 Station name Upper Truckee River at South Lake Tahoe, CA Taylor Creek near Camp Richardson, CA General Creek near Meeks Bay, CA Ward Creek at Highway 89 near Tahoe Pines, CA Trout Creek near Tahoe Valley, CA Truckee River at Tahoe City, CA Donner Creek at Donner Lake near Truckee, CA Martis Creek near Truckee, CA Prosser Creek below Prosser Creek Dam near Truckee, CA Independence Creek near Truckee, CA Susan River at Susanville, CA Willow Creek tributary near Susanville, CA Shaffer Creek near Litchfield, CA Aspen Creek near Westwood, CA Pine Creek tributary near Susanville, CA Pine Creek near Susanville, CA Cottonwood Creek above Tecatec near Dulzura, CA Campo Creek near Campo, CA Tijuana River near Dulzura, CA Tijuana River near Nestor, CA Sweetwater River near Descanso, CA Poway Creek near Poway, Total drainage area Period of (mi2) record 54.9 1972-74, 1978, 1980-94 16.7 1969-92 7.44 1981-94 9.70 1973-94 36.7 1961-94 507 1901-94 14.3 1910, 1931-52, 1956-57, 1959-94 39.9 1959-90, 1993-94 52.9 1943-94 8.10 1903-07, 1910, 1968-94 184 1901, 1903-05, 1917-21, 1951-94 3.08 1963-73 5.63 1964-73 4.70 1970-80 4.70 1971-80 226 1961-82 310 1937-94 85.0 1937-94 481 1937-88 1,695 1937-82 45.4 1906-27, 1957-94 7.92 1978-87 Water year 1986 1980 1982 1982 1963 1969 1986 1963 1956 1951 1982 1993 1970 1970 1970 1975 1975 1972 1975 1970 1980 1993 1983 1980 1980 1927 1980 1980 Stage (ft) 9.08 6.33 5.43 8.05 11.14 9.32 4.83 6.16 10.13 11.00 6.12 8.16 8.89 7.51 12.16 3.00 5.27 5.45 5.60 11.15 6.86 7.03 10.66 8.70 12.31 7.26 Dis- charge (tf/s) 2,740 1,530 765 1,800 535 2,630 707 1,880 4,560 4,320 291 200 5,850 183 389 21 397 93 1,140 936 11,700 1,580 13,600 12,200 33,500 11,200 6,750 755 Significant floods during 1970-89 Date (month/ day/year) 3/08/86 1/14/80 12/20/81 12/19/81 3/08/86 6/28/82 1/29/83 12/26/83 3/13/86 2/19/86 2/28/86 2/20/86 12/20/81 1/24/70 2/17/86 1/23/70 1/23/70 5/15/75 5/15/75 5/15/75 2/21/80 3/03/83 3/24/83 2/20/80 2/21/80 3/03/83 2/21/80 2/20/80 2/21/80 Stage («) 9.08 6.33 5.43 8.05 11.00 7.93 7.73 8.53 8.84 4.83 5.66 6.66 6.12 8.89 8.33 7.51 12.16 3.00 - 5.45 11.15 9.76 5.39 4.36 10.66 7.03 8.70 12.31 7.26 Regu- Dis- lated charge during (ft3/s) flood1 2,740 1,530 765 1,800 480 1,930 1,980 2,360 2,450 707 663 1,790 291 5,850 5,120 183 389 21 397 1,140 11,700 6,690 895 652 12,200 13,600 33,500 6,750 755 N Y N N N Y Y Y Y Y Y Y Y Y Y N N N N N Y Y N N Y Y Y N N Recur- rence interval (years) 15-25 - 15-25 20-30 15-20 5-15 5-15 15-25 20-30 30-40 >10 10-20 10-20 40-60 15-30 25-35 10-20 - - >100 -- 25-30 10-15 100 -- - 25 -- CA Significant Floods, 1970 Through 1989, California 119 Table 6. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11023300 11023310 11023325 11023330 11023340 11025500 11025800 11026000 11027000 11028500 11031500 11033000 1 1037700 11040000 11040200 11041000 1 1042000 11043000 11044000 11044500 11046000 11046100 11046550 Total drainage area Station name (mi2) Rattlesnake Creek near Poway, CA Rattlesnake Creek at Poway, CA Beeler Creek at Pomerado Road near Poway, CA Los Penasquitos Creek below Poway Creek near Poway, CA Los Penasquitos Creek near Poway, CA Santa Ysabel Creek near Ramona, CA Clevenger Creek tributary near Ramona, CA Santa Ysabel Creek, CA Guejito Creek near San Pasqual, CA Santa Maria Creek near Ramona, CA Agua Caliente Creek near Warner Springs, CA West Fork San Luis Rey River near Warner Springs, CA Pauma Creek near Pauma Valley, CA San Luis Rey River at Monserate Narrows, CA Keys Creek tributary at Valley Center, CA San Luis Rey River near Bonsall, CA San Luis Rey River at Oceanside, CA Murrieta Creek at Temecula, CA Santa Margarita River near Temecula, CA Santa Margarita River near Fallbrook, CA Santa Margarita River at Ysidora, CA Las Flores Creek near Oceanside, CA San Juan Creek at San Juan Capistrano, CA 3.74 8.13 5.46 31.2 42.1 112 0.45 128 22.5 57.6 19.0 25.5 11.0 373 7.65 513 557 222 588 644 740 26.6 117 Period of record 1962-73 1970-75, 1977-88 1977-88 1971-93 1965-94 1912-22, 1944-71, 1973-94 1962-73 1906-10, 1912, 1957-71, 1973-80 1947-53, 1955-82 1914-20, 1947-94 1961-87 1914, 1958-86 1965-82 1936, 1939-41, 1947-86 1969, 1971-83 1891, 1915, 1930-79 1913-16, 1930-42, 1947-94 1931-94 1923-94 1925-29, 1931-80 1923-94 1952-67, 1969-79, 1994 1970-85 Water year 1973 1967 1980 1980 1980 1980 1916 1980 1973 1980 1969 1980 1966 1980 1916 1980 1969 1980 1980 1967 1980 1980 1891 1978 1916 1993 1993 1993 1927 1978 1980 1978 1978 1983 Stage («) 2.04 4.99 2.88 9.20 11.11 10.26 14.25 7.67 12.19 7.22 7.45 14.39 15.90 4.80 6.36 15.60 8.51 8.60 9.68 8.80 14.97 21.70 17.24 22.50 14.55 18.80 13.50 7.00 15.88 Dis- charge (ft3/s) 68 64 1,430 1,410 4,990 4,750 28,400 10,700 54 12,500 7,120 3,940 2,250 15,200 7,140 1,440 564 6,200 3,170 2,100 15,500 1,680 128,000 8,230 95,600 25,700 25,000 31,000 33,100 22,000 24,000 7,300 14,700 5,770 Significant floods during 1970-89 Date (month/ day/year) 11/11/72 2/21/80 1/29/80 2/21/80 3/01/78 2/21/80 2/21/80 11/16/72 2/21/80 2/20/80 2/21/80 2/21/80 2/21/80 2/20/80 2/21/80 2/21/80 1/17/78 2/21/80 2/21/80 2/21/80 3/01/78 2/20/80 2/18/80 3/01/78 3/04/78 2/20/80 Stage («) 2.04 2.88 9.20 11.11 10.26 14.25 7.67 7.22 14.39 4.80 15.60 8.51 9.68 8.80 14.97 14.00 13.70 16.50 14.55 14,40 18.80 13.50 7.00 Regu- Dis- lated charge during (It3/*) flood1 68 1,430 1,410 4,990 4,700 4,750 10,700 54 12,500 3,940 15,200 1,440 6,200 3,170 15,500 1,680 8,230 25,000 21,800 22,000 22,000 21,000 24,000 7,300 14,700 11,400 N N N N N N Y N Y Y N N N N Y N Y Y Y N Y Y -- N N N Recur- rence interval (years) -- -- 30 30 25-35 25-50 50-75 65-75 40-50 30-40 65-75 -- 25-50 15 15-20 10-15 10 __ 120 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11047200 11047300 11047500 11048500 11055800 11056500 1 1058500 11058600 11062000 11063680 1 1065000 11070050 11070375 1 1070500 11072100 11073360 11073495 11074000 11075720 11075755 11075800 Station name Oso Creek at Crown Valley Parkway near Mission Viejo, CA Arroyo Trabuco at San Juan Capistrano, CA Aliso Creek at El Toro, Ca San Diego Creek at Culver Drive near Irvine, CA City Creek near Highland, CA Little San Gorgonio Creek near Beaumont, CA East Twin Creek near Arrowhead Springs, CA Waterman Canyon Creek near Arrowhead Springs, CA Lytle Creek near Fontana, CA Devil Canyon Creek near San Bernardino, CA Lytle Creek at Colton, CA Bautista Creek at Valle Vista, CA San Jacinto River at Railroad Canyon weir near Elsinore, CA San Jacinto River near Elsinore, CA Temescal Creek above Main Street at Corona, CA Chino Creek at Schaeffer Avenue near Chino, CA Cucamonga Creek near Mira Loma, CA Santa Ana River below Prado Dam, CA Carbon Creek below Carbon Canyon Dam, CA Santa Ana River at Ball Road at Anaheim, CA Santiago Creek at Modjeska, CA Total drainage area (mi2) 14.0 54.1 7.91 41.8 19.6 1.74 9.04 4.65 46.6 5.49 186 48.5 562 723 224 48.9 75.8 1,490 19.5 1,587 13.0 Period of record 1971-81 1973-77, 1984-88 1931-80 1950-85 1920-94 1950-85 1920-92, 1994 1921-28, 1930-31, 1933-52, 1954-85 1920-21, 1926-27, 1931-38, 1943, 1947-88, 1991-94 1920-23, 1925-54, 1956-94 1958-83, 1985-94 1970-87 1952, 1954-58, 1960-85 1916-94 1981-83, 1985-94 1969-94 1969-77, 1979-94 1938, 1941-94 1962-94 1977-87 1962-94 Water year 1980 1976 1986 1969 1937 1983 1980 1969 1937 1984 1969 1980 1938 1969 1938 1969 1978 1978 1980 1980 1927 1983 1983 1983 1938 1993 1983 1983 1969 Stage (ft) 7.60 9.90 15.35 11.00 11.20 14.48 21.17 9.39 10.20 6.62 8.50 8.35 4.10 5.53 5.40 8.40 14.80 6.40 7.27 11.80 11.67 10.32 7.85 7.29 5.11 6.17 10.50 Dis- charge (ffVs) 5,150 440 2,020 2,500 1,950 10,400 7,720 7,000 1,500 520 3,710 2,350 1,160 25,200 3,720 1,820 17,500 8,320 5,700 16,000 4,720 13,100 16,100 100,000 7,190 796 18,500 6,520 Significant floods during 1970-89 Date (month/ day/year) 2/16/80 2/15/86 1/05/79 2/16/80 2/16/80 3/01/83 1/29/80 »/»/78 9/10/76 »/»/84 1/29/80 4/18/81 1/29/80 2/16/80 3/04/78 2/19/80 3/04/78 3/28/79 2/24/80 2/22/80 2/22/80 3/02/83 3/01/83 2/27/83 2/27/83 2/21/80 3/01/83 3/01/83 3/02/83 Stage (ft) 7.60 15.35 6.60 21.17 14.48 9.1 5.30 6.62 8.35 5.03 9.22 8.40 6.70 14.80 3.30 6.40 7.27 9.53 9.98 11.67 10.32 7.85 6.88 5.11 6.17 3.90 Dis- charge (ftVs) 5,150 2,020 2,450 1,870 7,720 10,400 3,630 2,510 427 520 3,710 1,960 925 10,330 1,820 672 17,500 1,390 8,320 5,700 9,010 9,170 4,720 13,100 16,100 7,440 796 18,500 3,400 Regu- lated during flood1 N N N N N N N N Y Y N N N N Y Y N N N Y Y Y Y Y N Y Y Y N Recur- rence interval (years) 20-30 -- 20-30 10-20 70-100 >100 30-50 75-100 30-50 25-50 30-50 12 -- >100 30-50 30-40 30-40 -- -- -- -- Significant Floods, 1970 Through 1989, California 121 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 27) 11078000 11085000 1 1086990 11087020 11088500 11089500 1 1090200 11090700 11091950 11092450 11097000 11097500 11098500 11101250 11102500 11103000 11103500 11104000 11105200 11105850 11106400 11106550 Station name Santa Ana River at Santa Ana, CA San Gabriel River below Santa Fe Dam near Baldwin Park, CA San Jose Creek near El Monte, CA San Gabriel River above Whittier Narrows Dam, CA Brea Creek below Brea Dam near Fullerton, CA Fullerton Creek below Fullerton Dam near Brea, CA Fullerton Creek at Richman Avenue at Fullerton, CA Coyote Creek at Los Alamitos, CA Limekiln Canyon Wash near Chats worth, CA Los Angeles River at Sepulveda Dam, CA Big Tujunga Creek below Hansen Dam, CA Los Angeles River at Los Angeles, CA Los Angeles River near Downey, CA Rio Hondo above Whittier Narrows Dam, CA Rio Hondo near Downey, CA Los Angeles River at Long Beach, CA Ballona Creek near Culver City, CA Topanga Creek near Topanga Beach, CA Cold Creek tributary near Malibu Beach, CA Arroyo Simi near Simi, CA Conejo Creek above Highway 101, CA Calleguas Creek at Total drainage area (mi2) 1,700 236 87.8 353 21.6 4.94 12.1 150 3.41 158 153 514 599 91.2 143 827 89.5 18.0 0.30 70.6 64.2 248 Period of record 1923-30, 1932-89, 1991-94 1943-48, 1951-84, 1986-94 1965-78 1956-57, 1964-94 1943-80, 1982-94 1943-47, 1949-94 1960-77, 1979-81 1965-78 1960-73 1930-79 1933-36, 1938, 1941-94 1930-79 1929-78 1957-94 1929-79 1929-80, 1982-83, 1989-90, 1992 1914, 1928-78 1930-38, 1940-79 1961-73 1934-35, 1937-41, 1943-47, 1952, 1954-60, 1962-83 1973-83 1969-82 Water year 1938 1981 1969 1978 1969 1980 1978 1983 1980 1975 1971 1978 1938 1983 1938 1978 1938 1978 1980 1969 1980 1968 1934 1969 1971 1983 1980 1983 1980 Stage (ft) 16.00 22.20 9.28 10.90 6.34 8.25 6.70 7.25 10.41 12.04 7.64 14.62 10.35 7.35 15.15 17.99 14.89 18.50 13.36 17.48 8.50 8.80 23.23 10.54 Dis- charge (tf/s) 46,300 6,200 30,900 11,100 46,600 1,700 1,060 392 2,050 14,300 540 14,700 54,000 15,200 67,000 52,700 79,700 73,600 18,200 46,900 129,000 32,500 11,300 12,200 102 10,700 9,310 13,300 25,300 Significant floods during 1970-89 Date (month/ day/year) 3/01/83 3/03/83 3/04/78 2/17/80 2/18/80 2/27/83 3/01/83 2/15/86 1/28/80 12/04/74 11/29/70 3/04/78 2/10/78 3/02/83 2/10/78 2/10/78 2/16/80 3/01/78 3/27/79 2/16/80 12/04/74 2/10/78 3/04/78 11/29/70 2/16/80 3/01/83 3/01/83 2/16/80 2/16/80 Stage (ft) 10.66 20.90 9.28 10.70 5.53 8.25 8.17 6.70 7.25 10.41 12.04 7.63 7.64 14.62 10.35 7.35 12.24 10.83 17.99 12.35 14.84 10.99 17.48 8.80 8.50 23.23 21.67 10.54 Dis- charge (tf/s) 20,100 23,100 11,100 43,800 1,700 1,220 392 381 2,050 14,300 540 14,700 15,200 15,200 52,700 73,600 18,200 32,000 25,600 129,000 20,560 28,088 10,130 102 9,310 10,700 13,300 11,800 25,300 Regu- lated during flood1 Y Y N Y Y Y Y Y N N N Y Y Y Y Y Y Y Y Y Y Y N N N N N N N Recur- rence interval (years) " -- " -- -- 25-30 -- 10-25 ~ -- -- -- ~ -- -- -- 30 10 30-35 40-50 15-20 10 30-35 Camarillo State Hospital, CA 122 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11107000 11109250 11109600 11110500 11113000 11115500 11116000 11117500 11117600 11117800 11118000 11118500 11119530 11119660 11119700 11119780 11120550 11120600 11124500 11128500 11131700 11132300 11132500 11133000 Station name Honda Barranca near Somis, CA Lockwood Creek at Gorge near Stauffer, CA Piru Creek above Lake Piru, CA Hopper Creek near Piru, CA Sespe Creek near Fillmore, CA Matilija Creek at Matilija Hot Springs, CA North Fork Matilija Creek at Matilija Hot Springs, CA San Antonio Creek at Casitas Springs, CA Coyote Creek near Oak View, CA Santa Ana Creek near Oak View, CA Coyote Creek near Ventura, CA Ventura River near Ventura, CA Franklin Creek at Carpinteria, CA San Ysidro Creek at Montecito, CA Sycamore Creek at Santa Barbara, CA Arroyo Burro at Santa Barbara, CA Gaviota Creek near Gaviota, CA Jalama Creek near Lompoc, CA Santa Cruz Creek near Santa Ynez, CA Santa Ynez River at Solvang, CA Santa Rita Creek near Lompoc, CA El Jaro Creek near Las Cruces, CA Salsipuedes Creek near Lompoc, CA Santa Ynez River at narrows near Lompoc, CA Total drainage area (mi2) 2.57 58.7 372 23.6 251 54.6 15.6 51.2 13.2 9.11 41.2 188 3.56 3.07 3.41 6.65 18.8 20.5 74.0 579 14.1 3.54 47.1 789 Period of record 1955-73 1972-81 1938, 1956-94 1934-36, 1938-41, 1943-83 1933-85, 1991-92, 1994 1933-88 1934-41, 1943-83 1950-83 1959-88 1938, 1959-88 1935-52, 1954-58, 1970-82 1933-94 1971-78, 1981-84, 1986-92 1972-83 1971-80 1971-92 1967-86 1966-82 1942, 1944-94 1932, 1935-36, 1947-94 1976-79, 1981-92 1960-73 1941-94 1907, 1914, 1929-63, 1965-94 Water year 1972 1969 1980 1978 1938 1969 1969 1978 1969 1969 1969 1969 1980 1978 1969 1938 1978 1978 1969 1972 1980 1978 1978 1980 1978 1984 1983 1978 1969 1969 1978 1973 1967 1952 1907 1969 Stage (ft) 14.77 15.34 5.45 7.32 - 18.60 12.72 22.40 16.50 11.00 14.30 12.00 13.72 10.01 10.70 .. 11.63 19.14 24.30 6.10 2.85 29.10 4.65 4.83 5.67 5.71 9.44 11.34 14.45 17.10 9.06 7.08 14.20 20.80 22.00 24.20 Dis- charge (tf/s) 770 184 2,490 1,070 35,000 31,200 8,400 73,000 20,000 9,440 16,200 8,000 5,100 5,330 4,730 11,500 420 63,600 58,000 1,600 332 300 1,120 582 1,850 1,510 5,270 4,020 7,050 82,000 450 500 499 11,400 120,000 80,000 Significant floods during 1970-89 Date (month/ day/year) 12/27/71 2/16/80 3/01/83 2/16/80 2/10/78 3/01/83 2/16/80 3/04/78 2/14/86 3/04/78 2/10/78 1/18/73 3/04/78 2/21/80 2/10/78 10/01/83 2/16/80 2/09/78 3/04/78 1/28/83 3/04/78 2/09/78 3/04/78 3/01/83 3/04/78 1/18/73 1/18/73 3/04/78 Stage (ft) 14.77 5.45 11.36 11.60 22.40 20.41 19.53 13.91 10.59 8.94 13.82 11.56 10.01 7.97 19.14 4.50 2.85 4.65 5.67 9.44 11.34 12.37 11.90 10.62 9.06 7.08 16.00 16.80 Regu- Dis- lated charge during (ftS/s) flood1 770 2,490 20,850 8,120 73,000 56,000 40,700 16,500 9,730 5,780 13,900 6,580 5,330 643 63,600 1,600 332 1,120 1,850 5,270 4,020 5,060 60,600 38,600 450 500 8,280 63,200 N N Y N N N N N Y N N N N Y Y N N N N N N N Y Y N N N Y Recur- rence interval (years) 10-20 - 10 30-35 40-50 25 10-15 25 5-10 20 25-30 10-25 10-25 .. 50 5-10 - - .. .. _ 20-25 - -- 10-20 10-20 - Significant Floods, 1970 Through 1989, California 123 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11133700 11138100 11139480 11140000 11141050 11141500 11143000 11143190 11143200 11143300 11144200 11144600 11147500 11150500 11150800 11151600 11152300 11152500 11153050 11153470 11154200 11156450 11157500 11158500 Station name Purisima Creek near Lompoc, CA Cuyama River below Twitchell Dam, CA Tepusquet Creek tributary near Sisquoc, CA Sisquoc River near Garey, CA Orcutt Creek near Orcutt, CA Arroyo Grande at Arroyo Grand, CA Big Sur River near Big Sur, CA Klondike Canyon near Carmel Valley, CA Carmel River at Robles del Rio, CA Arroyo del Rey at Del Rey Oaks, CA Salsipuedes Creek near Pozo, CA Salinas River below Salinas Dam near Pozo, CA Salinas River at Paso Robles, CA Salinas River near Bradley, CA Cow Creek near San Ardo, CA Little Rabbit Valley Creek near San Benito, CA Salinas River near Chualar, CA Salinas River near Spreckels, CA Pacheco Creek tributary near Dunneville, CA Llagas Creek above Chesbro Reservoir near Morgan Hill, CA Uvas Creek near Gilroy, CA Willow Creek tributary near San Benito, CA Tres Pinos Creek near Tres Pinos, CA San Benito River near Hollister, CA Total drainage area (mi2) 4.75 1,132 2.44 471 18.5 102 46.5 2.14 193 13.8 5.91 112 390 2,535 4.80 4.25 4,042 4,156 0.17 9.63 71.2 1.24 206 586 Period of record 1971-91 1959-83 1960-73 1941-53, 1955-84, 1986-94 1983-92 1940-86 1951-94 1961-69, 1971-73 1956, 1958-94 1967-78 1970-83 1974-86 1938, 1940-65, 1969-94 1949-60, 1962-94 1961-73 1961-69, 1971-73 1977-89, 1991-94 1862, 1911, 1914, 1930-56, 1958-60, 1962-94 1961-73 1972-82 1959-87, 1989-92 1961-73 1938, 1940-83 1950-83 Water year 1974 1983 1973 1969 1973 1983 1967 1983 1991 1967 1978 1971 1983 1974 1980 1978 1969 1969 1973 1973 1983 1969 1862 1973 1982 1978 1986 1973 1969 1983 1958 1983 Stage (ft) - 2.96 8.22 10.58 6.03 11.16 13.50 7.53 9.26 12.88 14.30 54.46 11.49 4.24 6.12 10.24 23.80 20.34 59.74 53.05 14.49 26.51 31.00 51.82 6.86 7.50 21.82 51.56 51.81 11.14 16.30 16.34 Dis- charge (tf/s) 200 152 9,100 6,920 186 33,600 22,600 1,830 286 5,400 10,700 82 8,380 64 1,450 7,160 28,000 117,000 435 79 48,000 83,100 14 980 969 14,200 55 40 8,790 11,600 11,600 Significant floods during 1970-89 Date (month/ day/year) 1/07/74 6/13/73 10/18/72 3/01/83 3/01/83 3/01/83 1/05/78 12/21/70 2/14/86 2/28/83 1/03/74 2/21/80 2/10/78 2/16/80 12/22/82 2/10/78 1/18/73 1/18/73 3/03/83 3/03/83 1/18/73 1/04/82 2/17/86 1/18/73 1/27/83 3/02/83 Stage (ft) - 8.22 6.03 11.16 7.53 10.68 14.30 54.46 10.56 11.49 4.24 6.12 10.24 15.99 15.90 18.68 59.74 53.05 14.49 23.44 51.82 6.86 21.82 51.56 11.14 16.34 Regu- Dis- lated charge during (ft3/s) flood1 200 9,100 186 33,600 1,830 4,620 10,700 82 6,680 8,380 64 1,450 7,160 18,500 16,400 70,600 435 79 48,000 63,000 14 980 14,200 55 8,790 11,600 N Y N N N Y N N N N N N Y N N Y N N Y Y N N Y N N Y Recur- rence interval (years) - - 40-50 -- - 15-25 >100 10-20 5-15 10-20 - 15-25 10-20 25-35 5-15 15-25 15-30 15-30 15-30 - 40-60 15-30 25-50 15-25 124 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number («g. 27) 11158900 11159690 11160000 11160500 11161800 11162470 11162570 11166700 11173200 11176200 11176300 11176500 11176550 11176600 11177000 11180700 11181000 11181400 11182400 11183600 11185300 11189500 11192500 11194200 Station name Pescadero Creek near Chittenden, CA Aptos Creek near Aptos, CA Sequel Creek at Sequel, CA San Lorenzo River at Big Trees, CA San Vicente Creek near Davenport, CA Pescadero Creek tributary near La Honda, CA San Gregorio Creek at San Gregorio, CA Arroyo Calero tributary near New Almaden, CA Arroyo Hondo near San Jose, CA Arroyo Mocho near Pleasanton, CA Tassajara Creek near Pleasanton, CA Arroyo Valle near Livermore, CA Arroyo Valle tributary near Livermore, CA Arroyo Valle at Pleasanton, CA Arroyo de la Laguna near Pleasanton, CA Patterson Creek at Union City, CA San Lorenzo Creek at Hay ward, CA Wildcat Creek at Richmond, CA Arroyo del Hambre at Marti nez, CA Walnut Creek at Concord CA Golden Trout Creek near Cartago, CA South Fork Kern River near Onyx, CA Kern River near Democrat Springs (river only), CA Wagonwheel Creek near Total drainage area (mi2) 10.2 10.2 40.2 106 6.07 0.22 50.9 0.18 77.10 142 26.8 147 3.58 171 405 -- 37.5 8.69 15.1 85.2 23.6 530 2,258 1.38 Period of record 1971-81 1972-83 1937, 1951-94 1937-94 1970-83 1961-73 1970-94 1961-73 1969-81 1963-85 1915-19, 1922-30, 1979-83 1913-24, 1926-28, 1930, 1956, 1958-94 1959-73 1958-85 1913-19, 1921-30, 1970-83, 1988-94 1959-94 1940, 1942, 1947-83 1965-75 1965-82 1969-92 1957-67, 1970, 1972-78 1914, 1930-42, 1947-94 1951-55, 1957-88 1959-73 Water year 1980 1982 1956 1956 1982 1973 1982 1973 1963 1980 1982 1968 1982 1956 1973 1958 1982 1986 1963 1982 1956 1970 1973 1982 1982 1978 1967 1951 1972 Stage (ft) 7.11 12.1 22.33 22.55 8.90 51.75 21.28 51.50 59.83 12.36 13.97 31.00 11.70 13.93 15.09 25.36 19.61 18.44 20.40 20.15 20.82 9.90 10.30 12.65 19.10 4.18 16.90 30.70 14.20 Dis- charge (ft^s) 667 3,980 15,800 30,400 2,280 51 7,910 78 28 6,600 4,330 505 2,280 18,200 152 11,300 11,400 22,100 10,500 7,740 4,790 776 725 2,200 13,300 326 28,700 40,000 338 Significant floods during 1970-89 Date (month/ day/year) 2/20/80 1/04/82 1/04/82 1/05/82 1/04/82 1/16/73 1/04/82 1/18/73 2/19/80 1/05/82 1/05/82 3/03/83 1/18/73 3/03/83 1/05/82 1/24/83 2/19/86 1/05/82 1/21/70 1/04/82 1/05/82 6/09/78 2/18/80 6/19/83 6/06/72 Stage (ft) 7.11 12.1 21.85 28.85 8.90 51.75 21.28 51.50 12.36 13.97 11.70 8.89 15.09 13.86 19.61 16.70 18.44 20.15 9.90 12.65 19.10 4.18 9.20 17.02 14.20 Regu- Dis- lated charge during (ftS/s) flood1 667 3,980 9,700 29,700 2,280 51 7,910 78 6,600 4,330 2,280 2,850 152 2,590 11,400 16,800 22,100 7,740 776 2,200 13,300 326 4,360 6,790 338 N N N N N N N N N N N Y N Y Y Y Y N N N N N N Y N Recur- rence interval (years) -- 20-30 30-50 >50 40-60 20-30 5-20 -- -- 15-30 10-20 -- 20-40 15-25 30-40 20-40 5 5-15 20-30 20-40 10-25 -- -- Reward, CA Significant Floods, 1970 Through 1989, California 125 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1 994 Station number (fig. 27) 11196400 11196420 11199500 11204500 11205680 11205690 11210970 11211790 11214000 11215000 11217000 11221500 11226500 1 1228500 11230000 11230215 11230500 11231500 11234760 11242400 11244000 11253310 11257500 Station name Caliente Creek above Tehachapi Creek near Caliente, CA Tehachapi Creek near Tehachapi, CA White River near Ducor, CA South Fork Tule River near Success, CA Frazier Creek near Strathmore, CA Lewis Creek near Lindsay CA Antelope Creek at Woodlake, CA Cottonwood Creek near Elderwood, CA North Fork Kings River below Meadowbrook, CA North Fork Kings River near Cliff Camp, CA Dinkey Creek at Dinkey Meadow near Shaver Lake, CA Kings River below Pine Flat Dam, CA San Joaquin River at Miller Crossing, CA Granite Creek near Cattle Mountain, CA South Fork San Joaquin River near Florence Lake, CA South Fork San Joaquin River below Hooper Creek near Florence Lake, CA Bear Creek near Lake Thomas at Edison, CA Mono Creek below Lake Thomas at Edison, CA San Joaquin River above Shakeflat Creek near Big Creek, CA North Fork Willow Creek near Sugar Pine, CA North Fork Willow Creek near Bass Lake, CA Cantua Creek near Cantua Creek, CA Fresno River near Knowles, CA Total drainage area (mi2) 165 53.2 92.9 109 3.05 21.50 ~ 60.40 37.7 181 50.7 1,545 249 47.8 171 184 52.5 92.5 1,003 16.9 50.8 46.4 133 Period of record 1962-83 1962-85 1943, 1945-53, 1972-94 1931-54, 1956-90 1974-88, 1992-94 1974-88, 1992-94 1974-86, 1988 1969, 1972-84 1922-35, 1956-81 1922-88 1922-35, 1977-87 1954-88 1922-28, 1952-88 1922-28, 1952-86 1922-80 1979-88 1992-94 1922-88, 1992-94 1922-87, 1992-94 1960-88, 1992-94 1966-84, 1986-94 1940-88 1958-94 1912, 1916-63, 1965-90 Water year 1983 1983 1963 1943 1973 1967 1983 1983 1978 1983 1983 1969 1978 1938 1982 1969 1956 1982 1956 1978 1982 1982 1982 1969 1980 1986 1982 1983 1969 1956 Stage («) 10.72 4.51 5.30 6.12 12.50 9.72 25.17 8.04 13.72 7.22 10.40 6.50 18.00 12.07 10.73 21.28 11.55 11.92 17.55 11.42 8.35 8.87 18.38 7.41 _ 7.78 5.72 6.60 11.52 Dis- charge (ft»/s) 15,500 5,560 1,700 2,300 1,330 14,300 216 811 341 275 2,310 -- 3,000 14,000 11,200 17,100 16,600 8,610 1,790 6,800 5,950 3,660 2,160 18,400 2,750 2,100 1,950 3,420 1,920 13,300 Significant floods during 1970-89 Date (month/ day/year) 3/01/83 3/01/83 2/10/78 1/13/80 1/22/83 1/22/83 2/10/78 1/22/83 9/05/78 9/05/78 4/1 1/82 6/21/83 9/25/82 1/13/80 4/11/82 9/05/78 9/26/82 9/05/72 9/05/78 9/26/82 6/01/86 9/26/82 7/18/84 6/18/83 1/13/80 2/19/86 3/01/83 12/22/82 2/18/86 Stage («) 10.72 4.51 5.30 9.42 9.72 25.17 8.04 7.22 6.50 11.96 12.07 10.60 19.69 9.73 11.55 17.55 11.42 6.98 7.90 8.35 6.76 8.87 8.85 18.18 7.41 5.72 9.36 10.55 Regu- Dis- lated charge during (tf/s) flood1 15,500 5,560 1,330 6,570 216 811 341 2,310 3,000 5,110 11,200 16,700 11,500 3,530 8,610 6,800 5,950 1,800 3,520 3,660 1,680 2,160 2,130 17,900 2,750 2,100 3,420 8,000 10,700 N N N N N N N N N Y N Y N N N Y Y N N N N Y Y Y N Y N N N Recur- rence interval (years) -- - 10-20 10-30 .. - - - 20-40 >100 - 30-40 - -- -- 50-75 >100 >100 30-50 50-100 50-100 10-30 25-50 .. 30-50 15-25 30-40 126 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11258000 11258960 11259000 11274000 11274500 11274630 11276500 11277300 11278300 11278400 11281000 11282000 11283500 11284400 11284700 11289650 11292000 11292900 1 1295400 11296500 11298000 Station name Fresno River below Hidden Dam near Daulton, CA Chowchilla River above Willow Creek near Raymond, CA Chowchilla River below Buchanan Dam near Raymond, CA San Joaquin River near Newman, CA Orestimba Creek near Newman, CA Del Puerto Creek near Patterson, CA Tuolumne River near Hetch Hetchy, CA Cherry Creek below Valley Dam near Hetch Hetchy, CA Cherry Creek near Early Intake, CA Cherry Creek below Dion River Holm Powerhouse near Mather, CA South Fork Tuolumne River near Oakland Recreation Camp, CA Middle Tuolumne River at Oakland Recreation Camp, CA Clavey River near Buck Meadows, CA Big Creek above Whites Gulch near Groveland, CA North Fork Tuolumne River near Long Barn, CA Tuolumne River below LaGrange Dam near LaGrange, CA Middle Fork Stanislaus River at Kendy Meadows near Dardanelle, CA Middle Fork Stanislaus River below Beardsley Dam, CA Stanislaus River near Hathaway Pines, CA South Fork Stanislaus River at Strawberry, CA South Fork Stanislaus River near Long Barn, CA Total drainage area (mi2) 258 173 236 9,520 134 72.6 457 118 226 234 87 73.5 144 16.4 23.1 1,538 47.5 316 629 44.8 66.9 Period of record 1938, 1942-88 1981-90 1931-72, 1976-88 1868, 1914-94 1932-94 1959-94 1915-94 1957-94 1957-94 1963-94 1923-94 1917-94 1960-83, 1987-94 1965, 1970-94 1956, 1962-86 1971-94 1939-45, 1947-88, 1992-94 1957-88, 1992-94 1968-94 1912-16, 1939-88, 1992-94 1938-88, 1992-94 Water year 1956 1974 1986 1956 1938 1969 1958 1963 1959 1943 1974 1963 1982 1956 1982 1956 1980 1986 1986 1983 1951 1983 1983 1986 1951 1951 Stage (ft) 11.64 14.61 15.25 16.50 - 65.90 6.57 9.72 14.68 13.90 10.53 14.50 15.36 10.90 11.29 11.75 21.47 7.03 9.93 15.09 6,66 6.67 12.30 23.50 9.25 9.30 Dis- charge (tf/s) 17,500 8,620 16,900 30,000 33,000 28,000 10,200 8,300 1,800 12,900 4,210 16,500 16,300 11,900 8,070 4,920 19,400 2,620 2,760 10,400 1,700 1,640 9,080 46,200 3,900 4,900 Significant floods during 1970-89 Date (month/ day/year) 3/01/83 2/18/86 3/01/83 2/25/80 3/04/83 2/19/86 3/01/83 7/07/83 7/10/74 4/11/82 4/11/82 2/19/86 4/11/82 2/19/86 1/13/80 2/17/86 2/19/86 4/24/83 5/18/73 5/29/83 5/30/83 3/08/86 2/19/86 2/16/82 2/16/82 2/19/86 Stage (ft) 8.83 15.25 11.67 65.26 65.78 9.12 7.93 13.09 10.53 14.34 15.36 13.26 11.29 9.46 21.47 7.03 9.93 15.09 6.55 6.67 12.30 11.39 23.50 7.57 8.66 7.96 Dis- charge (tf/s) 4,190 16,900 5,020 23,500 30,700 6,990 1,610 10,700 4,210 15,900 16,300 8,910 8,070 2,930 19,400 2,620 2,760 10,400 1,550 1,640 9,080 7,210 46,200 2,530 4,050 3,210 Regu- lated during flood1 Y N Y Y Y N N Y Y Y Y Y N N N N N Y Y Y Y Y Y Y Y Y Recur- rence interval (years) <5 - <5 10-15 30-60 10-20 10-15 10-15 15-20 15-25 20 5-10 20 15-20 20-25 15 20 15-20 10-15 15-20 10-20 5-15 - 10-20 15-25 10-15 Significant Floods, 1970 Through 1989, California 127 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 27) 11299600 11304000 11308900 11311400 11312950 11314500 11316800 11317000 11318500 11319500 11327000 11329500 11333000 11333500 11335000 11336030 11336040 11336050 11336530 11336550 11336560 11336580 Total drainage area Period of Station name (mi2) record Black Creek near Copperopolis, CA Corral Hollow Creek near Tracy, CA Calaveras River below New Hogan Dam near Valley Springs, CA Bear Creek tributary near Valley Springs, CA Mountain House Creek tributary near Altamont, CA North Fork Mokelumne River below Salt Springs Dam, CA Forest Creek near Wilseyville, CA Middle Fork Mokelumne River at West Point, CA South Fork Mokelumne River near West Point, CA Mokelumne River near Mokelumne Hill, CA Sutler Creek near Sutler Creek, CA Dry Creek near Gait, CA Camp Creek near Somerset, CA North Fork Cosumnes River near El Dorado, CA Cosumnes River at Michigan Bar, CA Badger Creek at Riley Road near Gait, CA North Fork Badger Creek at Riley Road near Gait, CA Willow Creek at McKenzie Road near Gait, CA Laguna Creek at McKenzie Road near Gait, CA Skunk Creek at McKenzie Road near Gait, CA Deadman Gulch at Christenson Road near Gait, CA Morrison Creek near Sacramento, CA 14.4 1984-94 61.6 1959-67, 1972-78 363 1961-90 0.15 1960-73 0.27 1959-69, 1972-73 170 1927-33, 1935-94 20.8 1961-94 68.4 1912-94 75.1 1934-94 544 1901, 1903-04, 1928-94 48.1 1936-41, 1961-80 324 1927-33, 1945-87 62.6 1955-94 205 1912-41, 1949-87 536 1907-94 13.0 1972-83, 1986 12.6 1972-83, 1986 2.95 1972-83, 1986 117 1972-83, 1986 11.70 1972-83 8.82 1972-79, 1981, 1986 48.6 1960-87 Water year 1986 1973 1980 1973 1973 1951 1986 1986 1914 1986 1956 1951 1986 1980 1986 1982 1956 1928 1986 1907 1982 1986 1986 1982 1982 1980 1982 1986 1986 Stage (ft) 9.10 3.65 10.52 23.11 6.67 17.20 8.12 9.19 10.00 12.48 14.80 18.50 21.98 6.53 26.02 14.50 14.80 15.20 14.76 16.30 41.13 41.40 39.40 40.26 40.43 24.64 40.02 26.50 10.40 Dis- charge (ft3/s) 5,200 339 10,000 60 14 16,000 2,020 4,920 2,550 7,300 6,920 33,700 28,500 6,930 30,300 8,680 15,800 8,700 45,100 -- 1,310 1,040 215 164 10,330 240 -- 400 2,730 Significant floods during 1970-89 Date (month/ day/year) 2/19/86 2/11/73 1/22/80 3/11/73 1/18/73 6/26/71 6/15/83 2/19/86 2/19/86 2/16/82 2/16/82 2/19/86 2/18/86 1/13/80 4/01/82 2/17/86 2/16/82 2/19/86 2/16/82 2/17/86 »/»/82 2/17/86 2/17/86 »/»/82 2/19/80 2/17/86 2/17/86 Stage (ft) 9.10 3.65 10.52 23.11 6.67 12.16 12.43 8.12 9.19 8.67 11.05 12.48 21.98 6.53 25.74 26.02 14.50 13.86 14.26 14.76 41.13 41.40 39.40 40.43 24.64 26.50 10.40 Regu- Dis- lated charge during (ft^s) flood1 5,200 339 10,000 60 14 6,780 7,010 2,020 4,920 4,510 6,050 7,300 28,500 6,930 23,000 30,300 8,680 7,790 15,500 45,100 1,310 1,040 215 10,330 240 400 2,730 N N Y N N Y Y N N Y N N Y N N N Y Y Y N N N N N N N N Recur- rence interval (years) 10-25 - 25-50 - 10-25 10-25 40-60 30 25 20 30 15 20-30 20 35 20 15 15 20 - .. - 128 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 27) 11337500 11341400 11342000 11345500 11348080 11349000 11349030 11350500 11352000 11352900 11355010 11355100 11355400 11359800 11360500 11362500 11363000 11363930 11365000 11365500 11367500 11367800 11368000 Station name Marsh Creek near Byron, CA Sacramento River near Mt. Shasta, CA Sacramento River at Delta, CA South Fork Pit River near Likely, CA Big Sage Reservoir tributary near Alturas, CA Pit River near Lookout, CA Pit River tributary near Lookout, CA Ash Creek at Adin, CA Pit River near Bieber, CA Beaver River near Hat Creek, CA Pit River below Pit Number 1 Powerhouse near Fall River Mills, CA Butte Creek tributary near Old Station, CA Bunchgrass Creek near Manzanita Lake, CA Cayton Creek tributary near Dana, CA Burney Creek at Park Avenue near Burney, CA Pit River below Pit Number 4 Dam, CA Pit River at Big Bend, CA Iron Canyon Creek below Iron Canyon Dam near Big Bend, CA Pit River near Montgomery Creek, CA Squaw Creek above Shasta Lake, CA McCloud River near McCloud, CA McCloud River at Ah-di- na near McCloud, CA McCloud River above Shasta Lake, CA Total drainage area (mi2) 42.6 135 425 247 2.54 1,585 0.47 258 2,475 23.2 3,761 5.15 0.62 0.16 94.6 4,648 4,710 11.24 4,952 64.0 358 427 604 Period of record 1954-83 1960-61, 1963-87 1945-94 1930, 1932-94 1963-73 1959-71, 1979-80 1963-67, 1969-73 1904-05, 1932, 1958-66, 1968-82 1904-08, 1914, 1922-26, 1952-78 1970-80 1974-94 1963-72 1970-80 1963-73 1912-13, 1921-22, 1959-75, 1977-80 1923-94 .1911-94 1967-84, 1986-91 1945-64, 1966-94 1945-66, 1969-80 1932-94 1956, 1965-94 1946-94 Water year 1982 1965 1974 1971 1971 1963 1970 1970 1970 1907 1970 1970 1986 1970 1980 1970 1970 1986 1970 1986 1986 1978 1970 1986 1956 1956 1974 1974 Stage (ft) 15.35 10.60 27.20 6.05 6.87 7.09 20.96 5.48 14.69 13.92 5.89 17.03 3.88 6.34 5.54 15.89 18.70 18.17 18.70 3.24 32.36 74.65 21.90 9.42 13.68 28.26 Dis- charge (ft3/s) 5,920 12,200 69,800 1,620 175 145 10,900 62 2,950 33,800 23,000 349 30,000 20 92 35 4,910 33,700 49,000 43,800 650 582 73,000 55,500 17,800 11,800 26,400 45,500 Significant floods during 1970-89 Date (month/ day/year) 1/05/82 1/16/74 1/16/74 6/02/71 5/31/83 3/26/71 1/24/70 1/23/70 1/24/70 1/24/70 1/23/70 2/20/86 1/23/70 1/13/80 1/23/70 1/23/70 1/25/70 2/20/86 1/25/70 2/20/86 2/05/86 1/24/70 1/16/74 1/23/70 1/16/74 1/16/74 1/16/74 Stage (ft) 15.35 10.25 27.20 6.05 5.14 6.87 20.96 5.48 14.69 13.92 5.89 17.03 3.88 6.34 5.54 15.89 18.04 18.70 18.17 18.70 32.36 21.90 9.36 9.12 13.68 28.26 Regu- Dis- lated charge during (ftVs) flood1 5,920 11,500 69,800 1,620 1,000 175 10,900 62 2,950 23,000 349 30,000 20 92 35 4,910 31,000 33,700 49,000 43,800 650 73,000 17,800 11,700 11,200 26,400 45,500 N Y N N N N Y N N Y N N N N N N N N N N Y Y N N N Y N Recur- rence interval (years) 30 20-30 >100 >100 20 10-25 -- 20-40 -- 40-80 20-30 -- 25-50 30 40 50 35 55 20 35 30 35 Significant Floods, 1970 Through 1989, California 129 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11370500 11371000 11372000 11372200 11373200 11374000 11374400 11375810 11375820 11375870 11376000 11376100 11376200 11376550 11377100 11379000 11379500 11380500 11381500 11382950 11383500 11383730 11384000 11384400 Station name Sacramento River at Keswick, CA Clear Creek at French Gulch, CA Clear Creek near Igo, CA South Cow Creek near Millville, CA Oak Run Creek near Oak Run, CA Cow Creek near Millville, CA Middle Fork Cottonwood Creek near Ono, CA Cottonwood Creek near Olinda, CA South Fork Cottonwood Creek near Cottonwood, CA South Fork Cottonwood Creek near Olinda, CA Cottonwood Creek near Cottonwood, CA South Fork Bailey Creek near Manzanita Lake, CA Summit Creek near Mineral, CA Battle Creek below Coleman Fish Hatchery near Cottonwood, CA Sacramento River above Bend Bridge near Red Bluff, CA Antelope Creek near Red Bluff, CA Elder Creek near Paskenta, CA Elder Creek at Gerber, C A Mill Creek near Los Molinos, CA North Fork Calf Creek near Butte Meadows, CA Deer Creek near Vina, CA Sacramento River at Vina Bridge near Vina, CA Big Chico Creek near Chico, CA South Fork Stony Creek near Stonyford, CA Total drainage area (mi2) 6,468 115 228 77.3 11 425 244 395 217 371 927 3.67 1.80 357 8,900 123 92.4 136 131 1.26 208 "~ 72.40 2.52 Period of record 1939-94 1951-93 1941-94 1956-72 1958-66, 1969-76 1937, 1950-94 1957-75 1972-86 1963-78 1977-86 1941-94 1970-80 1961-73 1962-94 1879-88, 1892-1994 1938, 1941-44, 1946-82 1949-91, 1993-94 1950-70, 1972-80 1929-94 1970-80 1912-15, 1921-94 1947-70, 1972-78, 1980 1931-86 1970-80 Water year 1940 1970 1974 1956 1970 1956 1974 1982 1937 1974 1965 1974 1974 1983 1983 1970 1971 1970 1970 1940 1970 1970 1938 1983 1958 1965 1938 1970 1938 1970 1986 1938 1974 Stage (ft) 32.22 14.99 13.75 9.46 12.50 7.87 21.22 23.80 12.70 19.08 21.44 14.05 15.38 21.59 9.14 10.60 11.15 14.75 36.60 17.95 22.00 12.10 13.90 14.90 23.40 14.59 19.20 191.48 14.00 16.60 28.56 Dis- charge (ft^s) 186,000 78,900 14,600 24,500 6,970 3,860 48,700 22,700 13,500 36,900 18,700 35,800 86,000 266 244 220 24,300 291,000 157,000 17,200 17,700 11,700 14,100 36,400 34 23,800 171,000 10,600 8,260 586 Significant floods during 1970-89 Date (month/ day/year) 1/24/70 4/01/74 1/16/74 1/26/83 3/03/83 1/23/70 1/16/74 11/16/81 1/16/74 1/16/74 1/16/74 2/28/83 1/16/74 12/19/81 3/01/83 1/23/70 1/23/70 1/24/70 11/16/81 1/24/70 1/23/70 2/28/83 2/14/86 1/23/70 1/23/70 1/23/70 1/23/70 1/24/70 1/24/70 2/17/86 1/16/74 Stage (ft) 32.22 31.92 14.99 14.09 12.73 9.46 7.87 21.22 12.70 21.44 14.05 15.38 20.15 19.70 21.59 9.14 11.15 14.75 12.64 36.60 17.95 12.10 11.62 14.40 15.63 14.59 15.14 191.48 15.10 14.00 28.56 Regu- Dis- lated charge during (ft^s) flood1 78,900 81,400 14,600 10,500 19,200 6,970 3,860 48,700 22,700 36900 18,700 35,800 70,000 64,400 86,000 266 220 24,300 18,000 157,000 17,200 17,700 15,300 12,900 17,100 34 20,100 171,000 9,270 10,600 586 Y Y N N Y N N N N N N N N N N N N N N Y N N N N N N N N N N N Recur- rence interval (years) 20 40 >100 25-35 40-60 15-25 >50 45 >100 -- - 25 15 50 " 20-30 30-40 10-15 25 25-35 50 25 15 25 30 - 20 40 -- 130 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 27) 11384600 11386200 11388000 11389000 11389500 11389650 11389950 11390000 11390395 11390500 11390655 11390660 11390672 11390680 11391000 11395030 11395200 11396200 11396350 11396400 11397900 11397970 11400500 Station name Little Stony Creek above East Park Reservoir near Lodoga, CA South Fork Elk Creek near Elk Creek, CA Stony Creek below Black Butte Dam near Orland, CA Sacramento River at Butte City, CA Sacramento River at Colusa, CA Scotts John Creek near Stirling City, CA Little Butte Creek near Magalia, CA Butte Creek near Chico, CA Butte Slough near Meridian, CA Sacramento River below Wiltons Slough near Grimes, CA South Fork Willow Creek near Fruto, CA Walker Creek at Artois, CA Stone Corral Creek near Sites, CA Salt Creek near Williams, CA Sacramento River at Knights Landing, CA South Fork Feather River below Little Grass Valley Dam, CA South Fork Feather River below diversion dam near Strawberry Valley, CA South Fork Feather River below Forbestown Dam, CA South Fork Feather River at Ponderosa Dam, CA Sucker Run near Forbestown, CA Benner Creek near Chester, CA Lake Almanor tributary near Almanor, CA Butt Creek below Almanor-Butt Creek Tunnel near Prattville, CA Total drainage area (mi2) 45.60 2.56 738 12,075 12,090 3.76 11.4 147 -- 12,920 38.9 60.4 38.2 13.0 14,535 25.9 37.7 87.5 108 18.7 7.67 1.66 69.3 Period of record 1967-82 1970-80 1956-90 1941-94 1941-94 1970-79 1969-85 1931-94 1967-78 1939-94 1963-78 1966-81 1958-85 1960-73 1951-80 1928-33, 1961-94 1961-94 1963-94 1963-80, 1982-87 1965-87 1970-80 1963-73 1937-59, 1965-94 Water year 1970 1970 1958 1963 1942 1983 1942 1970 1970 1986 1970 1986 1940 1973 1973 1983 1973 1970 1986 1986 1986 1986 1982 1970 1970 1963 1986 Stage (ft) 11.39 23.51 13.37 96.87 68.50 69.20 6.01 6.37 14.52 61.64 52.50 52.75 12.58 11.69 16.64 29.18 40.86 14.78 14.92 16.07 67.23 9.90 6.29 8.43 8.85 5.90 Dis- charge (ft3/s) 4,000 311 36,300 10,700 170,000 51,800 49,000 206 1,180 22,000 150,000 32,700 27,000 3,620 5,660 5,700 940 30,800 5,780 8,870 15,400 21,000 2,600 182 131 111 3,870 Significant floods during 1970-89 Date (month/ day/year) 1/23/70 1/23/70 2/18/86 3/02/83 3/04/83 12/26/83 2/19/86 1/23/70 1/24/70 2/17/86 1/26/70 3/04/83 12/27/83 2/20/86 2/07/73 2/07/73 1/26/83 2/07/73 1/26/70 2/18/86 2/17/86 2/17/86 2/17/86 4/11/82 1/23/70 1/23/70 2/17/86 Stage (ft) 11.39 23.51 11.40 95.89 68.50 67.65 67.97 6.01 6.37 14.52 61.64 52.16 50.62 52.50 12.58 11.69 16.64 29.18 40.86 14.78 14.92 16.07 67.23 9.90 6.29 8.43 5.90 Dis- charge (tf/s) 4,000 311 23,300 157,000 51,800 49,100 50,100 206 1,180 22,000 150,000 32,300 30,400 32,700 3,620 5,660 5,700 940 30,800 5,780 8,870 15,400 21,000 2,600 182 131 3,870 Regu- lated during flood1 N N Y Y Y Y Y N Y N N Y Y Y N N N N Y Y Y Y Y N N N N Recur- rence interval (years) -- 35^5 30 35 15 20 -- -- 45 -- 40 10 50 -- -- -- 5-15 25-35 25-35 30-60 25-50 20-30 -- 5-15 30-40 Significant Floods, 1970 Through 1989, California 131 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 27) 11401112 11401180 11401460 11401500 11402000 11404500 11407150 11407900 11408850 11408880 11409300 11409400 11413000 11413300 11413520 11414100 11414250 11416500 11418500 Station name North Fork Feather River below Belden Dam, CA Little Grizzly Creek near Genesee, CA Hough Creek near Crescent Mills, CA Indian Creek near Crescent Mills, CA Spanish Creek above Blackhawk Creek at Keddie, CA North Fork Feather River at Pulga, CA Feather River near Gridley, CA Middle Yuba River below Jackson Meadows Dam near Sierra City, CA Middle Yuba River near Camptonville, CA Middle Yuba River below Our House Dam, CA Oregon Creek at Camptonville, CA Oregon Creek below Log Cabin Dam near Camptonville, CA North Yuba River below Goodyears Bar, CA Slate Creek below diversion dam near Strawberry, CA North Yuba River below New Bullards Bar Dam near North San Juan, CA Fordyce Creek below Fordyce Dam near Cisco, CA South Yuba River at Langs Crossing near Emigrant Gap, CA Canyon Creek below Bowman Lake, CA Deer Creek near Smartville, CA Total drainage area (mi2) 612 29.6 3.79 739 184 1,953 3,676 38.3 136 145 23.0 29.1 250 49.4 490 31.7 120 28.3 84.6 Period of record 1970-94 1965-79 1963-73 1906-08, 1912-17, 1931-88, 1990-93 1934-88, 1990-93 1912-94 1956, 1965-94 1963, 1965-87 1967-89 1969-94 1968-94 1969-94 1931-94 1961-81, 1983-94 1965, 1967-94 1967-94 1966-94 1927-94 1928, 1936-94 Water year 1987 1970 1970 1986 1986 1986 1965 1963 1986 1986 1986 1986 1986 1993 1963 1986 1965 1974 1986 1986 1970 1928 Stage (ft) 8.96 6.15 4.60 20.80 14.88 39.86 100.43 10.57 17.57 17.90 27.40 11.56 11.24 12.11 23.80 16.89 49.80 7.90 19.95 9.08 9.42 14.50 Dis- charge (tf/s) 3,230 1,800 227 36,200 19,600 87,900 151,000 10,000 3,630 21,600 20,600 4,550 6,400 2,300 40,000 13,600 91,600 4,660 20,400 3,970 3,740 14,000 Significant floods during 1970-89 Date (month/ day/year) 11/18/74 9/30/87 1/24/70 1/23/70 2/18/86 2/17/86 2/19/86 2/19/86 12/20/81 2/17/86 2/17/86 2/17/86 2/17/86 12/25/83 2/17/86 2/17/86 1/22/70 7/09/74 2/18/86 1/22/70 3/08/86 2/17/86 Stage (ft) 8.89 8.96 6.15 4.60 20.80 14.88 39.86 100.06 9.61 17.90 27.40 11.56 11.24 7.66 20.12 16.89 35.29 7.90 19.95 9.42 9.08 14.05 Dis- charge (tf/s) 3,040 3,230 1,800 227 36,200 19,600 87,900 150,000 3,660 21,600 20,600 4,550 6,400 2,590 29,000 13,600 56,200 4,660 20,400 3,740 3,970 12,100 Regu- lated during flood1 Y Y N N N N Y Y Y Y Y N N N N N Y Y Y Y Y Y Recur- rence interval (years) 5-15 5-15 -- 5-15 50 45-60 40-50 20-30 10-20 10-20 15-25 15-25 30-35 3-5 20 15-25 15-25 25-50 5-15 20-30 25-35 50-75 11421700 Feather River below Shanghai Bend near Olivehurst, CA 5,334 1970-80 1970 62.55 133,000 11421770 Bear River below Drum 12.3 1967-94 Afterbay near Blue Canyon, CA 11421790 Bear River below Dutch 21.5 1966-94 Flat Afterbay near Dutch Flat, CA 1982 4.64 7,530 1986 -- 4,240 1992 2.30 76 4/11/82 4.64 7,530 Y 2/17/86 4,240 Y 132 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11422500 11424000 11425500 11426000 11426200 11426400 11427000 1 1427500 11427700 11427760 11427770 11428800 1 1433040 11433100 11433260 1 1433400 1 1433420 11433800 11435100 1 1436000 Station name Bear River below Rollins Dam near Colfax, CA Bear River near Wheatland, CA Sacramento River at Verona, CA Sacramento weir spill to Yolo Bypass near Sacramento, CA North Fork Forbes Creek near Dutch Flat, CA North Shirttail Creek near Dutch Flat, CA North Fork American River at North Fork Dam, CA Middle Fork American River at French Meadows, CA Duncan Creek near French Meadows, CA Middle Fork American River above Middle Fork Powerhouse near Foresthill, CA Middle Fork American River below Interbay Dam near Foresthill, CA Rubicon River below Hell Hole Dam, CA Pilot Creek below Mutton Canyon near Georgetown, CA Long Canyon Creek near French Meadows, CA North Fork of Middle Fork American River near Foresthill, CA Canyon Creek near Georgetown, CA Maine Bar Canyon Creek near Greenwood, CA North Fork American River below Auburn Damsite near Auburn, CA Pyramid Creek at Twin Bridges, CA Silver Lake outlet near Kirkwood, CA Total drainage area (mi2) 105 292 21,251 - 1.68 9.10 342 47.9 9.94 87.8 89.10 114 21.1 18.0 88.9 12.50 0.76 973 8.76 15.2 Period of record 1912-13, 1916-17, 1950-53, 1964-94 1929-94 1930-94 1928, 1961-84, 1986, 1989-91, 1993 1956-85 1956-85 1942-94 1952-94 1961-94 1966-94 1966-85 1967-94 1962-94 1961-92 1966-85 1966-79 1973-83, 1985-86 1972-85 1971-94 1923-94 Water year 1986 1986 1986 1986 1928 1970 1956 1980 1984 1965 1963 1965 1980 1986 1980 1986 1981 1986 1965 1980 1970 1986 1980 1971 1986 Stage (ft) 20.62 21.60 42.11 30.84 33.01 4.76 6.40 12.32 30.38 11.87 14.20 10.60 8.47 11.60 7.95 7.60 10.86 11.20 17.00 11.01 2.58 87.50 4.62 6.22 Dis- charge (ft8/*) 22,500 48,000 92,900 128,000 118,000 377- 3,370 803 65,400 21,500 3,650 9,860 6,100 9,900 10,700 718 6,330 4,690 30,100 1,300 367 66,700 858 1,160 Significant floods during 1970-89 Date (month/ day/year) 2/16/82 2/17/86 2/17/86 2/22/80 3/04/83 2/20/86 2/20/86 1/22/70 1/13/80 2/17/86 3/08/86 2/17/86 1/13/80 1/13/80 3/08/86 2/18/86 1/13/80 1/13/80 1/21/70 2/18/86 1/14/80 6/26/71 5/14/75 2/19/86 Stage (ft) 12.95 20.62 21.60 38.12 38.82 42.11 30.84 4.76 12.32 11.40 10.40 10.35 8.47 7.95 - 10.86 10.05 17.00 11.01 2.58 87.50 4.62 5.12 6.22 Dis- charge (tf/s) 15,400 22,500 48,000 80,900 79,400 92,900 128,000 377 3,370 60,600 2,870 3,220 9,860 9,900 10,700 6,330 3,310 30,100 1,300 367 66,700 858 796 1,160 Regu- lated during flood1 Y Y Y Y Y Y Y Y Y N Y N Y Y Y Y Y N N N N Y Y Y Recur- rence interval (years) 10-20 50-100 >100 10-20 10-20 >50 40-80 75-100 25 10-15 20-30 - _ 10-15 40-60 5-15 - 5-15 - - 15 .. -- Significant Floods, 1970 Through 1989, California 133 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 27) 11437000 11439500 11440000 11441500 11441900 11442500 11444500 11446500 11447360 11447650 11448500 11448900 11449010 11449100 11449350 11449500 11451000 11451100 11451700 11452500 11453000 11454000 Station name Caples Lake outlet near Kirkwood, CA South Fork American River near Kyburz, CA (river only) Alder Creek near Whitehall, CA (total flow) South Fork Silver Creek near Ice House, CA Silver Creek below Camino Diversion Dam, CA South Fork American River below Silver Creek near Pollock Pines, CA South Fork American River near Placerville, CA American River at Fair Oaks, CA Arcade Creek near Del Paso Heights, CA Sacramento River at Freeport, CA Adobe Creek near Kelseyville, CA Highland Creek above Highland Creek Dam, CA Highland Creek below Highland Creek Dam, CA Scotts Creek near Lakeport, CA Burns Valley Creek near Clearlake Highlands, CA Kelsey Creek near Kelseyville, CA Cache Creek near Lower Lake, CA North Fork Cache Creek at Hough Spring near Clearlake Oaks, CA Bear Creek tributary near Wilbur Springs, CA Cache Creek at Yolo, CA Yolo Bypass near Woodland, CA Putah Creek near Winters, CA Total drainage area (mi2) 13.5 193 22.1 27.5 171 449 598 1,888 31.5 " 6.36 11.9 14.2 55.2 4.37 36.6 528 60.2 4.49 1,139 -- 574 Period of record 1923-32, 1934-44, 1946-47, 1949-83, 1985, 1987-92 1923-94 1923-81 1925-94 1961-94 1970-93 1912-20, 1965-94 1862, 1905-17, 1919-94 1964-78 1982-94 1955-78 1955-78 1967-77 1961-76, 1978-80 1963-78 1947-94 1945-94 1972-94 1960-69, 1971-73 1903-94 1942, 1951-94 1931-94 Water year 1969 1985 1965 1956 1956 1986 1980 1965 1914 1951 1862 1978 1986 1974 1963 1974 1965 1971 1974 1974 1980 1978 1954 1958 1986 1973 1965 1958 1986 1940 Stage (ft) 2.62 10.92 8.40 6.71 11.70 17.83 17.40 19.00 31.85 38.00 15.01 25.00 8.92 9.22 10.91 12.15 4.78 5.09 13.38 22.62 7.14 14.80 9.40 12.84 28.90 29.00 85.35 34.87 29.50 Dis- charge (ft3/s) 669 134 17,500 5,500 3,940 22,800 29,500 47,300 15,000 180,000 2,390 117,000 1,570 1,450 3,140 3,080 765 625 11,100 5,060 852 8,150 8,000 10,800 695 531 41,400 374,000 81,000 Significant floods during 1970-89 Date (month/ day/year) 7/02/80 2/16/82 1/13/80 1/22/70 5/26/82 2/17/86 1/13/80 2/17/86 1/13/80 2/19/86 1/14/78 2/16/82 1/16/74 1/16/74 12/03/70 1/16/74 1/16/78 1/26/83 1/23/70 2/17/86 1/18/73 1/24/70 2/20/86 1/24/70 3/02/83 Stage (ft) 9.65 7.91 5.66 5.74 11.70 17.83 16.66 16.30 27.96 15.01 21.27 8.92 10.91 4.78 13.38 7.14 13.31 8.60 12.84 28.90 80.36 34.87 18.85 19.55 Dis- charge (tf/s) 482 11,000 4,550 1,800 1,930 22,800 29,500 25,100 39,000 134,000 2,390 103,000 1,570 3,140 765 11,100 852 7,730 6,320 10,800 695 34,600 374,000 16,300 18,700 Regu- lated during flood1 Y Y Y Y Y Y N Y Y Y N Y N N Y N N N Y N N Y Y Y Y Recur- rence interval (years) 10 50 15-25 20-30 -- 15-20 25-50 15-20 10-20 10-25 10-20 -- 10-20 10-15 5-10 15-25 5-10 10-30 25-35 20-30 30-50 134 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11456000 11458000 11458100 11458200 11458300 11458350 11459500 11460000 11460100 11460150 11460400 11460440 11460600 11460800 11460900 11460920 11461500 11462000 11462500 11463000 11463170 11464000 1 1464400 11464860 1 1467000 Station name Napa River near St. Helena, CA Napa River near Napa, CA Milliken Creek near Napa, CA Redwood Creek near Napa, CA Napa Creek at Napa, CA Tulucay Creek at Napa, CA Novato Creek at Novato, CA Corte Madera Creek at Ross, CA Arroyo Corte Madera Presidio at MiE Valley, CA Redwood Creek near Tamalpais Valley, CA Lagunitas Creek at Samual P. Taylor State Park, CA Nicasio Creek near Nicasio, CA Lagunitas Creek near Point Reyes Station, CA Walker Creek near Tomales, CA Roscoe Creek at Bodega Bay, CA Salmon Creek at Bodega, CA East Fork Russian River near Calpella, CA East Fork Russian River near Ukiah, CA Russian River near Hopland, CA Russian River near Cloverdale, CA Big Sulphur Creek at Geysers Resort near Cloverdale, CA Russian River near Healdsburg, CA Dry Creek near Yorkville, CA Warm Springs Creek near Asti, CA Russian River near Guerneville, CA Total drainage area (mi2) 81.4 218 17.3 9.79 14.9 12.6 17.6 18.1 4.69 6.38 34.3 1.74 81.7 40.1 0.25 15.7 92.2 105 362 503 13.1 793 56.0 12.2 1,338 Period of record 1930-32, 1940-94 1930-32, 1960-94 1971-83 1959-73 1971-83 1972-83 1947-94 1952-93 1966-73, 1976-85 1962-73 1983-94 1962-71, 1973, 1982-83 1975-94 1960-84 1962-73, 1982-83 1963-75, 1982-83 1942-94 1912-13, 1952-56, 1958-94 1938, 1940-94 1952-94 1981-94 1938, 1940-94 1974-83 1974-83 1940-94 Water year 1986 1986 1983 1971 1965 1982 1982 1982 1982 1970 1982 1973 1986 1982 1967 1982 1982 1982 1970 1982 1973 1965 1993 1956 1970 1956 1938 1965 1986 1965 1938 1974 1983 1986 1956 Stage (ft) 18.52 30.20 10.14 8.52 10.44 12.76 7.38 14.46 19.81 7.52 8.11 10.74 8.44 15.38 26.96 31.37 9.71 19.61 20.21 22.89 10.84 27.00 30.00 31.60 8.98 27.00 30.80 13.50 12.15 48.56 49.70 Dis- charge (ft3/s) 16,900 37,100 3,440 1,460 1,450 3,190 2,360 5,000 6,000 1,180 1,170 2,150 3,470 610 560 22,100 18,800 210 76 7,400 2,260 18,700 10,200 13,300 7,350 45,000 55,200 5,700 71,300 15,400 2,660 102,000 90,100 Significant floods during 1970-89 Date (month/ day/year) 2/17/86 2/18/86 1/26/83 11/27/70 1/01/82 2/25/83 1/04/82 2/17/86 4/01/82 2/17/86 1/21/70 1/16/73 2/18/86 1/04/82 1/04/82 1/16/73 1/04/82 1/04/82 1/23/70 1/24/70 1/16/74 1/16/74 2/17/86 2/17/86 1/16/74 1/26/83 2/18/86 Stage (ft) 18.52 30.20 10.14 8.52 12.76 7.38 14.46 12.44 19.81 18.07 7.52 10.74 8.44 " 26.96 22.91 -- 20.13 10.84 25.50 26.50 8.98 25.81 13.50 12.15 48.56 Regu- Dis- lated charge during (frVs) flood1 16,900 37,100 3,440 1,460 3,190 2,360 5,000 2,530 6,000 4,150 1,180 2,150 3,470 610 22,100 8,070 210 7,400 12,400 7,350 39,700 51,900 5,700 71,100 15,400 2,660 102,000 N Y Y N N N Y Y N N N N Y N Y N N N N Y Y Y N Y N N Y Recur- rence interval (years) 50-75 75-150 -- 25-50 -- >50 10-25 >75 10-30 15-25 10-15 15-25 >75 -- >100 >100 10-25 30-40 20-35 30-50 10-20 20-25 -- -- >50 Significant Floods, 1970 Through 1989, California 135 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 1 1467040 11467300 11467600 11467880 11468000 11468010 11468020 11468500 11469600 11469650 11469800 11470500 11471500 11473900 11475000 11476500 11476600 11477000 11480000 11480390 11480410 11480500 11480700 11481000 11481200 Station name Ward Creek tributary near Cazadero, CA Unnamed tributary to Wheatfield Fork Gualala River near Annap., CA Garcia River near Point Arena, CA Navarro River tributary near Philo, CA Navarro River near Navarro, CA Albion River near Comptche, CA Albion River tributary near Comptche, CA Noyo River near Fort Bragg, CA Hull Creek near Potter Valley, CA Corbin Creek near Elk City, CA Cold Creek tributary near Elk City, CA Eel River below Scott Dam near Potter Valley, CA Eel River at Van Arsdale Dam near Potter Valley, CA Middle Fork Eel River near Dos Rios, CA Eel River at Fort Seward, CA South Fork Eel River near Miranda, CA Bull Creek near Weott, C A Eel River at Scotia, CA Jacoby Creek near Freshwater, CA Mad River above Ruth Reservoir near Forest Glen, CA Mad River below Ruth Reservoir near Forest Glen, CA Mad River near Forest Glen, CA Maple Creek near Blue Lake, CA Mad River near Arcata, CA Little River near Trinidad, CA Total drainage area (mi2) 0.11 0.19 98.5 0.65 303 14.4 0.40 106 1.49 6.18 0.81 290 349 745 2,107 537 28.1 3,113 5.80 93.8 121 143 12.1 485 40.5 Period of record 1962-73 1962-73 1952-56, 1963-83 1962, 1965-69, 1971-74 1938, 1951-94 1962-78 1962-74 1952-94 1970-80 1971-80 1970-75, 1977-80 1923-94 1910-23, 1925-94 1966-94 1956-94 1941-94 1961-94 1911-15, 1917-94 1955-72, 1974 1981-94 1981-94 1954-94 1962-67, 1969-73 1911-13, 1951-94 1953, 1956-94 Water year 1973 1966 1973 1974 1974 1956 1974 1974 1974 1974 1980 1970 1965 1965 1986 1966 1965 1965 1965 1965 1972 1986 1993 1986 1956 1965 1972 1965 1975 1953 Stage (ft) 11.52 11.84 55.78 17.41 9.99 40.60 12.35 11.60 27.14 58.26 58.00 10.78 24.24 33.90 27.41 32.86 87.20 46.00 20.60 72.00 9.30 11.39 13.10 17.61 16.80 47.89 30.70 14.19 15.70 Dis- charge (ft3/s) 48 46 255 30,300 127 64,500 4,430 110 26,600 820 1,620 256 56,300 64,100 93,100 70,200 561,000 199,000 6,520 752,000 2,510 15,000 11,700 17,800 39,200 20,100 4,100 81,000 9,830 -- Significant floods during 1970-89 Date (month/ day/year) 1/16/73 1/16/73 1/16/74 1/16/74 1/16/74 1/16/74 1/16/74 3/29/74 1/16/74 1/13/80 1/23/70 2/17/86 2/17/86 2/17/86 2/17/86 12/19/81 12/16/82 1/16/74 2/17/86 3/02/72 2/17/86 2/17/86 2/17/86 3/02/72 3/02/72 1/22/72 3/18/75 Stage (ft) 11.52 55.78 17.41 9.99 39.13 12.35 11.60 27.14 58.26 58.00 10.78 20.70 30.46 27.41 59.27 34.79 12.00 52.31 51.08 9.30 11.39 17.61 16.15 47.89 23.44 14.08 14.19 Dis- charge (ft3/s) 48 255 30,300 127 61,000 4,430 110 26,600 820 1,620 256 39,500 51,300 93,100 306,000 123,000 5,880 387,000 364,000 2,510 15,000 17,800 19,500 4,100 54,400 9,720 9,830 Regu- lated during flood1 N N N N N N N N N N N Y Y N N N N N N N N Y Y N N N N Recur- rence interval (years) 5-10 10-25 .. 10-25 30-50 40-60 20-30 40-60 - 15-25 25-40 10-20 10-20 15-25 10 15 15 50-75 20-30 20-30 15-25 10-20 10 10-20 10-20 136 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11481300 11481500 11482200 11482500 1 1488700 11489500 11516530 11518050 11519500 11520500 11522500 11523000 11523200 11525500 11525655 11527000 11528400 1 1528500 1 1528700 11530000 1 1530500 11530950 11532500 Station name Big Lagoon tributary near Trinidad, CA Redwood Creek near Blue Lake, CA Redwood Creek at south park boundary near Orick, CA Redwood Creek at Orick, CA Dry Lake tributary at Perez, CA Antelope Creek near Tennant, CA Klamath River below Iron Gate Dam, CA East Fork Scott River near Alahan, CA Scott River near Fort Jones, CA Klamath River near Seiad Valley, CA Salmon River at Somes Bar,CA Klarnath River at Orleans, CA Trinity River above Coffee Creek near Trinity Center, CA Trinity River at Lewiston, CA Trinity River below Limekiln Gulch near Douglas City, CA Trinity River near Burnt Ranch, CA Hayfork Creek near Hayfork, CA Hayfork Creek near Hyarnporn, CA South Fork Trinity River below Hyarnporn, CA Trinity River at Hoopa, CA Klamath River near Klarnath, CA Darlingtonia Creek at Darlingtonia, CA Smith River near Crescent City, CA Total drainage area (mi2) 0.13 67.7 185 277 1.74 18.6 4,630 110 653 6,940 751 8,475 149 719 812 1,439 86.70 378 764 2,853 12,100 0.77 614 Period of record 1962-73 1954-58, 1973-93 1971-81 1912-13, 1953-94 1963-73 1953-79 1961-94 1960-74 1942-94 1913-25, 1927, 1952-94 1912, 1914-15, 1927-29, 1931-94 1927-29, 1931-92 1956, 1958-94 1861, 1881, 1912-94 1981-91 1932-40, 1956-94 1956-69, 1971-72, 1974-76 1954-74 1965-94 1912-14, 1917-18, 1932-94 1862, 1881, 1890, 1911-27, 1932-94 1962-69, 1971-73 1927, 1932-94 Water year 1972 1975 1975 1972 1965 1970 1974 1965 1974 1965 1965 1965 1965 1974 1982 1956 1983 1956 1974 1974 1965 1965 1974 1965 1890 1972 1965 Stage (ft) 52.41 13.70 - 29.36 24.00 6.62 5.19 13.63 11.25 25.34 33.75 43.40 76.50 12.96 13.78 27.30 10.45 43.20 14.59 19.34 30.45 40.30 45.98 55.30 63.00 56.75 48.50 Dis- charge (ft3/s) 27 12,200 33,000 32,600 50,500 164 1,350 29,400 12,500 54,600 165,000 133,000 307,000 26,500 14,500 71,600 8,070 172,000 7,550 29,400 88,000 231,000 145,000 557,000 425,000 270 228,000 Significant floods during 1970-89 Date (month/ day/year) 1/21/72 3/18/75 3/18/75 3/18/75 1/23/70 11/11/73 2/21/82 1/16/74 1/16/74 1/16/74 3/02/72 1/16/74 1/16/74 2/18/86 1/16/74 1/18/74 6/12/83 1/16/74 1/16/74 1/16/74 2/17/86 1/16/74 1/16/74 2/18/86 3/02/72 1/22/72 Stage (ft) 52.41 13.70 - 23.82 6.62 5.19 11.60 11.25 23.67 29.65 24.84 26.73 37.24 37.16 12.96 10.41 10.45 27.72 14.59 19.34 25.47 45.98 41.96 36.76 56.75 43.37 Dis- charge (ft3/s) 27 12,200 33,000 50,200 164 1,350 18,700 12,500 36,700 126,000 56,900 63,500 279,000 278,000 26,500 14,400 8,070 68,100 7,550 29,400 75,000 145,000 529,000 459,000 270 182,000 Regu- lated during flood1 N N N N N N Y N N N N N N N N Y Y Y N N N Y Y Y N N Recur- rence interval (years) >50 - - 20-25 5-10 40-60 10-20 - 25-50 30-70 15-25 20-35 25-50 25-50 >75 20-35 - 15-30 - 10-25 15-30 20-30 60-70 30-40 5-10 50 Significant Floods, 1970 Through 1989, California 137 Table 6. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in California Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 27) 11533000 Station name Lopez Creek near Smith River, CA Total drainage area Period of Water (mi2) record year 0.92 1962-73 1972 Stage (ft) 54.29 Dis- charge (ft3/s) 570 Significant floods during 1970-89 Date (month/ day/year) 3/02/72 Stage (ft) 54.29 Dis- charge (tf/s) 570 Regu- lated during flood1 N Recur- rence interval (years) 20-40 Regulated during flood: N, no; Y, yes. 138 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Colorado Hydroclimatology Colorado is located in the west-central United States. Approximately 50 percent of the State is cov- ered by the Rocky Mountains and Colorado Plateau, and the other 50 percent is Great Plains. Colorado's location and the high-elevation mountains combine to create a complex and diverse climate statewide. Mean annual precipitation ranges from 7 in. in south-central Colorado to 60 in. in the mountains (Doesken and oth- ers, 1984). The major moisture sources for Colorado are the Pacific Ocean and the Gulf of Mexico (Paulson and others, 1991). Seasonal, large-scale atmospheric circulation interacts with the mountainous topography to produce three major precipitation patterns. The most important precpitation pattern, the mid- winter pattern, is created by frontal systems from the Pacific Ocean that are directed by the polar jetstream into Colorado from the northwest, west, and south- west. These airmasses must rise over the mountains causing a major orographic component to be added to the winter precipitation pattern. Therefore, during the winter season, most of the precipitation occurs in the higher mountains and in parts of the western valleys. The second precipitation pattern affects the east- em half of the State during the spring and summer. In the Great Plains and the foothills of the Rocky Moun- tains, a substantial increase in precipitation begins in early March and continues through June. As tempera- tures rise, the supply of moisture from the Gulf of Mexico steadily increases over the plains east and southeast of Colorado. This moisture and increased convective activity result in periodic, widespread rain- fall and occasionally severe thunderstorms east of the mountains. May and June tend to be the wettest months in the northeastern quarter of Colorado. The third precipitation pattern is the summer mon- soon, which occurs over the southern half of the State in July and August. Rainfall from thunderstorms over the mountains can become deadly flash floods as run- off is concentrated into the steep and narrow mountain valleys. Colorado is divided into three basic flood regions: (1) the mountainous region, running north-south through the central part of the State; (2) the plateau region to the west of the mountainous region; and (3) the plains region to the east of the mountainous region. Each region has different factors affecting runoff. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in the mountainous region of Colorado is dependent upon drainage area, mean basin slope, and mean annual precipitation. In the plateau region, maxi- mum discharges for streams are dependent on drain- age area, mean annual precipitation, and, to a small extent, mean basin elevation. The important variables for the plains region are effective drainage area (total area minus controlled or dammed area), the 100-year, 24-hour rainfall, and channel slope (Jennings and others, 1994). Significant Floods The flash floods that occurred in the Big Thomp- son and Cache la Poudre River Basins during the night of July 31 and morning of August 1, 1976, resulted in 144 deaths and $39 million in damages (Paulson and others, 1991). The floods were a result of slow-moving monsoonal thunderstorms that produced as much as 12 in. of rain in 3 hours over the downstream part of the Big Thompson River Basin. The floods during June and July of 1983, mostly confined to the mountains and their western slopes, were the result of snowmelt runoff combined with minor rainfall runoff. Eighteen percent of the stream- flow-gaging stations recorded significant discharges. The White River near Meeker (station 09304500, fig. 28) recorded a discharge greater than the 100-year recurrence interval. The floods of May and June 1984 were the most extensive during 1970-89. Twenty-five percent of the streamflow-gaging stations in the State, located mostly in the mountains and the Colorado Plateau, recorded significant discharges. The flooding was caused by snowmelt combined with minor rainfall runoff. Dis- charges exceeding the 50-year recurrence interval were recorded on the Colorado River near Cameo (sta- tion 09095500, fig. 28). Maximum discharge exceeded the 100-year recurrence interval on the White River near Meeker (station 09304500, fig. 28) and was a new peak of record. The location of streamflow-gaging stations in Col- orado that had significant floods for 1970-89 is shown in figure 28 by station number. The specific data for each significant flood are listed in table 7. A signifi- cant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. Significant Floods, 1970 Through 1989, Colorado 139 References regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- Doesken, N.J., McKee, T.B., and Richter, D.B., 1984, Anal- logical Survey Water.Resources investigations ysis of Colorado average annual precipitation for the Report 94-4002 196 p 1951-1980 period: Fort Collins, Colorado State Uni- paulson? R w c^ E B ? Roberts? R s and Moody; versity, Colorado Climate Center Climatology D w ? compilers, 1991, National water summary, Report 84-4, 53 p. 1988-89 Hydrologic events and floods and droughts: Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, U.S. Geological Survey Water-Supply Paper 2375, Nationwide summary of U.S. Geological Survey 591 p. 140 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 w IQ 5J I T] §a (0 (Q Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 0 20 40 60 KILOMETERS 082520oo~NEW MEXICO1 EXPLANATION Wyoming Basin Rocky Mountains Great Plains 07111000 ® Streamflow-gaging station and number Colorado Plateau Figure 28. Location of streamflow-gaging stations with significant floods during 1970-89 for Colorado. OKLAHOMA 0 20 40 60 MILES Inset A Base from U.S. Geological Survey digital data, 1:100,000,1994 Universal Transverse Mercator projection Zone 13 Converted to Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 0 20 30 MILES 0 10 20 30 KILOMETERS EXPLANATION Streamflow-gaging station and number Figure 28. Location of streamflow-gaging stations with significant floods during 1970-89 for Colorado Continued. 142 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado [mi , square miles; ft, feet above an arbitrary datum; ft /s, cubic feet per second; , not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 06620000 06659580 06695000 06696000 06699005 06700500 06701500 06706000 06707000 06707500 06708000 06708500 06709530 06709740 06710000 06710200 06710350 06710385 06710400 06710990 06711500 06711555 06711565 Station name North Platte River near Northgate, CO Sand Creek at CO-WY State line South Platte River above 11 -mile Canyon Reservoir near Hartsel, CO South Platte River near Lake George, CO Tarryall Creek below Rock Creek near Jefferson, CO Goose Creek above Cheesman Lake, CO South Platte River below Cheesman Lake, CO North Fork South Platte River below Geneva Creek at Grant, CO North Fork South Platte River at South Platte, CO South Platte River at South Platte, CO South Platte River at Waterton, CO Deer Creek near Littleton, CO Plum Creek at Titan Road near Louviers, CO Lee Gulch at Littleton, CO South Platte River at Littleton, CO Big Dry Creek tributary at Littleton, CO Bear Creek near Evergreen, CO Bear Creek above Evergreen, CO Cub Creek at Evergreen, CO Parmalee Gulch at mouth at Indian Hills, CO Bear Creek at mouth at Sheridan, CO Little Dry Creek above Englewood, CO South Platte River at Englewood, CO Total drainage area (mi2) 1,431 29.2 880 963 230 86.6 1,752 127 479 2,579 2,621 26.2 315 - 3,069 0.95 - 104 -- -- 260 -- -- Period of record 1904, 1915-93 1969-93 1939-94 1930-89, 1992-94 1983-89, 1991-92, 1994 1925-82 1926-94 1909-13, 1943-89, 1991-94 1909-10, 1913-82 1904-82 1926-80 1942-46, 1979-88, 1990-91 1984-87, 1989-94 1981-91, 1993-94 1942-85 1969-78 1979-90 1984-94 1979-91, 1993-94 1979-91 1927-89, 1991-94 1982-94 1983-88, 1990-94 Water year 1923 1984 1977 1970 1957 1970 1987 1957 1942 1970 1912 1950 1949 1921 1942 1980 1984 1992 1983 1965 1971 1980 1984 1980 1980 1984 1969 1983 1984 Stage (ft) 7.84 6.65 5.22 8.34 7.00 4.11 4.57 13.40 3.30 4.52 6.30 8.95 5.68 6.22 7.00 8.32 16.00 15.45 3.65 7.37 3.80 7.41 9.30 9.62 9.50 15.64 5.25 Dis- charge (ft3/s) 6,720 6,460 6,710 3,970 1,240 3,000 654 487 464 4,640 990 464 2,050 6,320 5,700 320 2,300 367 444 110,000 479 465 388 244 100 100 8,150 1,060 4,090 Significant floods during 1970-89 Date (month/ day/year) 5/17/84 7/19/77 4/27/70 4/28/70 4/19/87 5/22/73 4/29/70 6/18/83 6/29/78 6/12/80 4/30/70 4/30/70 -/--/80 5/15/84 -/-/83 5/06/73 8/30/71 --/~/80 8/26/84 ~/~/80 W--/84 5/06/73 ~/--/83 8/20/84 Stage («) 7.84 6.65 8.34 7.00 3.96 13.40 2.15 2.16 4.71 8.24 4.90 6.22 7.00 16.00 11.12 3.65 7.37 3.80 7.41 9.62 8.34 15.64 5.25 Dis- charge (tf/s) 6,460 6,710 3,970 3,000 654 452 4,640 805 825 1,600 5,040 4,870 320 2,300 444 11,000 479 465 388 244 100 3,750 1,060 4,090 Regu- lated during flood1 Y Y Y Y N N Y N Y Y Y Y N N N Y N N N N N Y N Y Recur- rence Interval (years) 30-40 150-200 >500 >500 20 200-500 20 20 10 60-70 40-50 " -- -- 15-20 -- -- -- -- -* 25-30 -- -- Significant Floods, 1970 Through 1989, Colorado 143 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970--89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 06711570 06711572 06711575 06711600 06711770 06711780 06714000 06714215 06714260 06714310 06719505 06719560 06720000 06720200 06720500 06725450 06730500 06732500 06733000 06736000 06736650 Station name Harvard Gulch at Colorado Boulevard at Denver, CO Harvard Gulch below University Boulevard at Denver, CO Harvard Gulch at Harvard Park at Denver, CO Sanderson Gulch tributary at Lakewood, CO Dry Gulch at Denver, CO Lakewood Gulch at Denver, CO South Platte River at Denver, CO South Platte River at 64th Avenue, Commerce City, CO Westerly Creek at Aurora, CO Sand Creek tributary at Denver, CO Clear Creek at Golden, CO Lena Gulch at Lakewood, CO Clear Creek at mouth near Derby, CO South Platte River tributary number 2 at Northglenn, CO South Platte River at Henderson, CO St. Vrain Creek below Longmont, CO Boulder Creek at mouth near Longmont, CO Fall River at Estes Park, CO Big Thompson River at Estes Park, CO North Fork Big Thompson River at Drake, CO Cedar Creek at Cedar Cove, CO Total drainage area (mi2) -- 0.38 -- 3,861 3,884 -- 0.29 400 9.00 575 0.50 4,713 424 439 39.8 137 85.1 18.9 Period of record 1981-89, 1991, 1993-94 1981-88, 1993-94 1981-91, 1993-94 1969-83, 1985-91, 1993-94 1981-91, 1993-94 1981-91 1895-1901, 1903-06, 1909-94 1982-94 1982-91, 1993-94 1971-88, 1991 1975-94 1974-80, 1987-91, 1993-94 1914, 1927-82 1969-78 1926-94 1977-82, 1985-89, 1991-94 1927-49, 1951-55, 1979-90, 1992-93, 1995 1945-53, 1978-91, 1993-94 1947-94 1947-76 1979-84, 1986, 1990-91, 1993-94 Water year 1988 1983 1994 1981 1977 1981 1984 1965 1987 1983 1985 1991 1983 1975 1965 1973 1976 1973 1965 1980 1938 1982 1982 1965 1976 1980 Stage (ft) 14.02 13.75 14.14 15.61 14.91 16.00 17.24 15.00 8.09 14.45 13.78 6.44 14.41 8.90 7.90 11.67 12.93 6.37 6.94 11.10 3.16 6.89 9.21 13.80 Dis- charge (tf/s) 597 780 766 785 422 445 930 40,300 14,300 1,530 800 428 2,370 641 5,070 4,700 151 33,000 29,600 2,380 4,410 6,550 5,500 1,640 8,710 1,590 Significant floods during 1970-89 Date (month/ Stage day/year) (ft) 8/04/88 14.02 ~/--/83 13.75 -/~/81 15.61 6/06/77 14.91 ~/--/81 16.00 -A-/84 17.24 5/07/73 10.85 6/08/87 8.09 --/»/83 14.45 -/~/85 7/10/83 6.44 7/20/75 14.41 5/06/73 8.90 5/24/76 7.90 5/06/73 11.67 5/01/80 6.37 5/19/83 4.82 7/15/82 11.10 7/15/82 7/31/76 9.21 «/~/80 13.80 Dis- charge (ft3/s) 597 780 785 422 445 930 17,600 14,300 1,530 800 2,370 641 4,700 151 33,000 2,380 2,090 6,550 5,500 8,710 1,590 Regu- lated during flood1 N N N N N N Y Y N N N N Y N Y Y Y N N N N Recur- rence interval (years) -- " -- " " -- -- ~ -- 5-10 >500 >500 >500 -- 144 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 06738000 06741510 06744000 06746095 06748510 06752260 06752280 06752500 06753800 06754000 06756200 06756995 06758250 06758500 06758700 06759100 06759900 06760000 06760200 06760430 Station name Big Thompson River at mouth of canyon near Drake, CO Big Thompson River at Loveland, CO Big Thompson River at mouth near La Salle, CO Joe Wright Creek above Joe Wright Reservoir, CO Little Beaver Creek near Idywilde, CO Cache La Poudre River at Fort Collins, CO Cache La Poudre River above Boxelder Creek near Timnath, CO Cache La Poudre River near Greeley, CO Owl Creek tributary near Rockport, CO South Platte River near Kersey, CO Geary Creek tributary near Rockport, CO South Platte River at Masters, CO Kiowa Creek tributary near Bennett, CO South Platte River near Weldona, CO Middle Bijou Creek tributary near Deer Trail, CO Bijou Creek near Ft. Morgan, CO Antelope Draw near Union, CO South Platte River at Balzac, CO Igo Creek tributary near Keota, CO Spring Canyon Creek near Peetz, CO Total drainage area (mi2) 305 535 830 3.01 0.88 1,129 1,246 1,877 4.28 9,654 1.15 12,175 6.40 13,245 1.74 1,500 3.19 16,852 1.53 22.9 Period of record 1888, 1895-99, 1902-03, 1906, 1927-33, 1938-49, 1951-85, 1987-94 1979-94 1927-28, 1931-81 1979-94 1961-73 1975-86, 1988-94 1980-85, 1987-94 1903, 1916-17, 1919, 1924-94 1969-79 1902-03, 1905-12, 1914-94 1969-79 1977-80, 1982-88 1970-79 1953-94 1970-79 1977-87 1969-79 1918-34, 1936-80 1969-79 1969-79 Water year 1976 1980 1980 1983 1994 1970 1983 1991 1983 1983 1973 1973 1971 1980 1978 1973 1977 1979 1977 1978 1965 1979 1975 Stage (ft) 19.86 10.10 9.91 2.20 5.61 2.15 8.31 9.15 8.02 8.92 15.40 11.73 11.01 10.06 19.60 11.68 - 13.36 6.01 11.60 13.32 11.48 13.36 Dis- charge («*/ ) 31,200 6,970 6,220 238 126 28 6,660 3,370 5,810 6,360 3,400 31,500 192 15,100 2,400 26,800 1,290 880 2,200 280 123,000 125 448 Significant floods during 1970-89 Date (month/ day/year) 7/31/76 4/30/80 4/30/80 5/01/80 7/07/83 6/28/70 6/21/83 6/21/83 5/17/80 6/14/83 6/28/73 5/08/73 8/19/71 5/02/80 8/02/78 5/08/73 7/20/77 7/26/77 6/23/78 5/09/73 7/03/79 7/10/75 Stage (ft) 19.86 7.62 10.10 9.91 2.20 2.15 8.31 8.02 8.14 8.92 15.40 11.73 11.01 10.06 19.60 11.68 - 6.01 11.60 10.70 11.48 13.36 Dis- charge (ft3/*) 31,200 6,150 6,970 6,220 238 28 6,660 5,810 4,030 6,360 3,400 31,500 192 15,100 2,400 26,800 1,290 2,200 280 20,300 125 448 Regu- lated during flood1 N Y Y Y N N Y Y Y Y N Y N Y N Y N Y N Y N N Recur- rence interval (years) 300-400 15-20 - - >500 25 .. - -- - - .. - - - .. - - - - Significant Floods, 1970 Through 1989, Colorado 145 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 06764000 06821300 06822600 06825500 06826900 06834200 07081200 07083000 07083700 07084500 07086000 07087200 07089000 07091000 07093700 07093740 07093775 07094500 07095000 07099100 Total drainage area Station name (mi2) South Platte River at 23, 1 93 Julesburg, CO North Fork Arikaree River 6.55 tributary near Shaw, CO Patent Creek near St. 2.37 Petersburg, CO Landsman Creek near 268 Hale, CO Sand Creek near Hale, CO 1 4.6 Spring Creek tributary 23.0 near Amherst, CO Arkansas River near 97.2 Leadville, CO Halfmoon Creek near 23.6 Malta, CO Arkansas River near 228 Malta, CO Lake Creek above Twin 75.0 Lakes Reservoir, CO Arkansas River at Granite, 427 CO Arkansas River at Buena 611 Vista, CO Cottonwood Creek below 65.0 Hot Springs near Buena Vista, CO Chalk Creek near Nathrop, 97.0 CO Arkansas River near 1,485 Wellsville, CO Badger Creek at upper 1 06 station near Howard, CO Badger Creek at lower 2 1 1 station near Howard, CO Arkansas River at 2,548 Parkdale, CO Grape Creek near 320 Westcliffe, CO Beaver Creek near 2 1 4 Portland, CO Period of record 1902-06, 1909-12, 1914-15, 1917-18, 1920-24, 1926-83, 1985, 1990-92 1969-79 1969-79 1951-76 1969-79 1969-79 1968-83, 1990-94 1947-94 1965-37, 1975-84 1946-52, 1954-58, 1960-32, 1964-94 1897, 1910-88, 1990-94 1965-80, 1987-93 1912-23, 1950-38, 1970-86 1949-56, 1979, 1981-82, 1984-93 1961-82, 1984-94 1981-85, 1987-91 1981-94 1946-55, 1965-94 1925-28, 1930, 1932-31, 1963-84, 1987-94 1971-81 Water year 1965 1979 1979 1975 1969 1975 1973 1983 1978 1984 1979 1980 1978 1990 1957 1980 1957 1986 1980 1985 1983 1984 1983 1985 1966 1973 1981 Stage (ft) 10.44 15.21 14.55 14.91 15.78 19.20 13.97 4.30 4.47 3.77 7.76 5.37 5.08 5.77 7.20 6.55 4.52 3.55 8.02 8.12 8.22 8.05 8.06 9.13 8.45 7.56 8.67 Dis- charge (ftVs) 37,600 1,270 850 13,000 10,600 4,350 480 1,090 894 615 274 2,200 3,270 1,940 5,360 3,950 1,180 1,400 6,240 6,020 1,360 2,470 6,310 5,960 7,460 4,800 2,800 Significant floods during 1970-89 Date (month/ day/year) 5/11/73 8/10/79 7/22/79 6/20/75 5/28/75 9/10/73 6/21/83 6/30/84 6/08/85 6/12/80 5/27/70 6/15/78 6/13/80 6/25/83 6/09/85 6/1 1/80 6/13/80 ~/--/86 6/12/80 6/10/85 8/14/83 7/28/84 6/26/83 6/09/85 4/17/87 9/09/73 Stage (ft) 8.10 15.21 14.55 14.91 19.20 13.97 4.30 3.77 3.75 5.37 5.20 5.08 5.65 5.74 5.72 6.55 3.33 3.55 8.02 8.12 8.22 8.05 8.06 9.13 4.25 7.56 Regu- Dis- lated charge during (fr'/s) flood1 22,000 1,270 850 13,000 4,350 480 1,090 615 575 2,200 2,660 3,270 3,560 3,600 3,320 3,950 672 1,400 6,240 6,020 1,360 2,470 6,310 5,960 1,410 4,800 Y N N N N N Y N N Y Y Y Y Y Y Y N N Y Y N N Y Y N N Recur- rence interval (years) - - 50 -- 25 150 100 20-25 5-10 25-50 40-50 40-50 25 20-25 30 40-50 90-100 50-60 20 15 15 10-25 07099215 Turkey Creek near Fountain, CO 13.0 1978-89 1982 4.70 1,020 7/28/82 4.70 1,020 146 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 07099230 07103747 07103780 07103800 07104000 07104500 07105928 07105940 07105945 07105950 07105960 07106300 07108900 07109500 07111000 07116500 07119500 07120620 07121500 07122400 07123675 07124200 07124300 07124410 Station name Turkey Creek above Teller Reservoir near Stone City, CO Monument Creek at Palmer Lake, CO Monument Creek above North Gate Boulevard at U.S. Air Force Academy, CO West Monument Creek at Air Force Academy, CO Monument Creek at Pikeview, CO Templeton Gap Floodway at Colorado Springs, CO Little Fountain Creek near Fort Carson, CO Little Fountain Creek near Fountain, CO Rock Creek above Fort Carson Reservation, CO Rock Creek near Fort Carson, CO Rock Creek near Fountain, CO Fountain Creek near Pinon, CO St. Charles River at Vineland, CO Arkansas River near Avondale, CO Huerfano River at Manzanares Crossing near Redwing, CO Huerfano River near Boone, CO Apishapa River near Fowler, CO Big Arroyo near Thatcher, CO Timpas Creek at mouth near Swink, CO Crooked Arroyo near Swink, CO Horse Creek near Las Animas, CO Purgatoire River at Madrid, CO Long Canyon Creek near Madrid, CO Purgatoire River below Total drainage area (mi2) 62.3 25.9 14.9 204 8.73 11.8 26.9 6.79 7.79 16.9 849 474 6,327 73.0 1,875 1,125 -- 496 108 -- 550 100 672 Period of record 1978-87, 1989-94 1977-89 1985-94 1970-94 1935, 1939-49, 1976-94 1952-78, 1980-81 1979-89 1978-88 1979-94 1979-88, 1990-94 1979-88 1973-94 1979-94 1939-51, 1966-94 1924-76, 1978-82 1980-94 1922-25, 1939-94 1983-92 1922, 1924-25, 1965, 1968-94 1968-93 1980-87, 1989-93 1972-94 1972-89 1977-94 Water year 1982 1987 1981 1985 1985 1980 1981 1935 1980 1985 1986 1982 1982 1986 1980 1985 1982 1978 1951 1981 1994 1923 1951 1985 1965 1978 1971 1984 1989 1976 1979 1981 Stage (ft) 11.51 11.88 2.07 2.34 6.05 2.73 7.48 14.00 3.58 5.04 8.47 4.73 6.09 4.81 7.05 7.53 12.70 8.93 8.14 10.90 11.36 17.70 4.86 21.11 7.91 8.40 6.61 12.80 7.37 7.89 Dis- charge (tf/s) 3,640 2,760 216 204 372 80 3,750 1,130 224 1,290 276 353 176 10,200 6,960 7,560 15,400 10,200 8,030 2,950 83,000 11,100 1,500 21,400 12,300 1,200 1,050 1,030 14,300 3,140 963 Significant floods during 1970-89 Date (month/ day/year) 8/20/82 8/02/81 4/30/85 5/08/80 8/05/81 7/02/80 10/04/84 8/23/86 7/28/82 7/28/82 8/02/86 5/08/80 8/11/82 8/04/72 7/30/78 8/03/72 8/12/81 7/10/78 7/28/85 7/10/78 8/07/71 7/15/89 7/20/76 7/17/79 9/10/81 Stage (ft) 11.51 2.07 6.05 2.73 7.48 3.58 5.04 8.47 4.73 6.09 4.81 7.05 12.70 8.05 8.93 6.36 10.90 17.60 4.86 21.11 7.91 6.61 12.80 7.37 7.89 Regu- Recur. Dis- lated rence charge during interval (ft3/s) flood1 (years) 3,640 216 372 80 3,750 1,130 224 1,290 276 353 176 10,200 7,560 15,000 15,400 6,520 8,030 18,300 1,500 12,300 1,200 1,030 14,300 3,140 963 N Y Y Y Y N Y Y N Y Y Y Y Y Y N N N N N N N N N Y 15 20 50 -- -- -- -- -- -- - .. 100-150 -- -- -- 35-40 -- 10-15 5-10 - Trinidad Lake, CO Significant Floods, 1970 Through 1989, Colorado 147 Table 7. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 07124700 07126300 07126325 07126390 07126415 07133200 07134100 07134180 08213500 08217500 08218500 08219500 08243500 08245000 08246500 08252000 09010500 09019000 09021000 09022000 09024000 09025000 09026500 09032000 Station name Gray Creek near Engleville, CO Purgatoire River near Thatcher, CO Taylor Arroy o below Rock Crossing near Thatcher, CO Lockwood Canyon Creek near Thatcher, CO Red Rock Canyon Creek at mouth near Thatcher, CO Clay Creek tributary near Deora, CO Big Sandy Creek near Lamar, CO Arkansas River near Granada, CO Rio Grande at Thirtymile Bridge near Creede, CO Rio Grande at Wagon Wheel Gap, CO Goose Creek at Wagon Wheel Gap, CO South Fork Rio Grande at South Fork, CO Trinchera Creek below Smith Reservoir near Blanca, CO Conejos River below Platoro Reservoir, CO Conejos River near Mogote, CO Rio Grande at CO-NM State line Colorado River below Baker Gulch near Grand Lake, CO Colorado River below Lake Granby, CO Willow Creek below Willow Creek Reservoir, CO Fraser River at upper station near Winter Park, CO Fraser River at Winter Park, CO Vasquez Creek at Winter Park, CO St. Louis Creek near Fraser, CO Ranch Creek near Fraser, CO Total drainage area (mi2) 4.95 1,935 - - - 1.60 3,307 23,707 163 780 90.0 216 396 40.0 282 53.4 312 134 10.5 27.6 27.8 32.9 19.9 Period of record 1970-78, 1981 1965-94 1983-89, 1991-92, 1994 1983-90, 1992-93 1983-94 1969-79 1968-82 1982-94 1911-23, 1925-94 1951-94 1955-83, 1985-91 1911-22, 1936-94 1929-82 1952-94 1903-05, 1912-94 1954-82 1953-94 1951-82 1953-82 1969-73, 1985-86, 1988-90, 1992-94 1911, 1914, 1916-45, 1947-94 1935-70, 1972-94 1935-94 1935-89, 1991-94 Water year 1970 1965 1989 1987 1987 1979 1976 1987 1927 1986 1985 1970 1912 1942 1973 1958 1965 1912 1979 1957 1971 1971 1973 1957 1972 1918 1983 1983 1952 1983 Stage (ft) 16.78 23.50 10.96 10.39 10.09 16.50 8.48 11.78 - 5.88 6.10 4.52 9.70 7.88 .. 4.05 8.50 7.77 7.19 7.30 3.95 4.09 4.84 2.15 2.90 2.94 4.14 2.89 3.96 Dis- charge (ftVs) 2,520 47,700 2,820 1,070 1,530 1,900 2,520 3,460 7,500 4,050 5,190 879 8,000 1,340 1,070 1,160 920 9,000 5,000 976 840 1,520 1,440 867 181 820 624 526 470 451 Significant floods during 1970-89 Date (month/ day/year) 7/22/70 7/03/81 7/31/89 5/22/87 5/22/87 S/--/79 9/16/76 5/26/87 6/07/86 6/09/85 9/14/70 6/16/87 5/24/84 5/13/73 6/30/85 6/25/85 6/10/79 6/25/71 6/19/83 6/27/71 6/20/74 5/29/79 6/05/72 6/13/73 6/27/83 6/27/83 6/21/71 6/27/83 Stage (ft) 16.78 22.00 10.96 10.39 10.09 16.50 8.48 11.78 5.88 6.10 4.52 4.35 6.91 7.88 3.62 5.43 7.77 7.30 7.27 3.95 3.89 4.81 2.15 2.58 2.94 4.14 2.50 3.96 Dis- charge (tf/s) 2,520 42,400 2,820 1,070 1,530 1,900 2,520 3,460 4,050 5,190 879 761 3,690 1,070 1,020 2,920 5,000 840 857 1,520 1,470 859 181 510 624 526 383 451 Regu- lated during flood1 N N N N N N N Y Y Y N N N Y Y Y Y Y Y Y Y Y N Y Y Y Y Y Recur- rence interval (years) -- - - - - _ - - 50-60 50 30 20 20 50 25 5 20-25 5 5-10 50-60 50-60 10-15 10 10 25 20-25 5-10 >200 148 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for strearnflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09032100 09034250 09034500 09034900 09035500 09035700 09035800 09035900 09037500 09038500 09039000 09040000 09041500 09046490 09047700 09050100 09050700 09052000 09052400 09052800 09054000 09055300 09057500 Station name Cabin Creek near Fraser, CO Colorado River at Windy Gap near Granby, CO Colorado River at Hot Sulphur Springs, CO Bobtail Creek near Jones Pass, CO Williams Fork below Steelman Creek, CO Williams Fork above Darling Creek near Leal, CO Darling Creek near Leal, CO South Fork of Williams Fork near Leal, CO Williams Fork near Parshall, CO Williams Fork below Williams Fork Reservoir, CO Troublesome Creek near Pearmont, CO East Fork Troublesome Creek near Troublesome, CO Muddy Creek at Kremmling, CO Blue River at Blue River, CO Keystone Gulch near Dillon, CO Tenmile Creek below North Tenmile Creek at Frisco, CO Blue River below Dillon, CO Rock Creek near Dillon, CO Boulder Creek at upper station near Dillon, CO Slate Creek at upper station near Dillon, CO Black Creek below Black Lake near Dillon, CO Cataract Creek near Kremmling, CO Blue River below Green Mountain Reservoir, CO Total drainage area (mi2) 789 825 5.49 16.3 34.7 8.18 27.2 184 230 44.6 76.0 290 - 9.10 93.3 335 15.8 8.56 14.2 15.0 12.0 599 Period of record 1984-94 1982-94 1905-09, 1912-24, 1926-28, 1930-94 1966-94 1934-41, 1966-94 1966-94 1966-94 1966-94 1905-24, 1934-94 1949-54, 1959-94 1954-93 1937-43, 1954-83 1982-94 1984-94 1958-94 1958-94 1960-94 1943-56, 1967-90, 1992-94 1967-90, 1992-94 1967-85, 1987-94 1943-49, 1967-83, 1985-91, 1993-94 1967-94 1938-94 Water year 1984 1984 1921 1933 1988 1938 1983 1971 1984 1978 1990 1918 1953 1983 1983 1957 1978 1979 1984 1984 1983 1965 1984 1983 1973 1971 1984 1986 1983 1983 1985 1983 1967 1938 1984 Stage (ft) 2.37 7.34 5.24 5.19 2.48 5.80 7.12 4.30 3.37 3.87 6.05 5.91 2.81 3.48 5.66 6.00 12.67 2.84 3.01 6.15 3.88 3.95 4.35 4.36 3.42 3.83 6.14 4.74 5.28 5.20 5.43 5.93 10.22 Dis- charge (tf/s) 126 5,260 10,300 5,640 290 441 403 677 241 464 400 2,620 2,640 1,960 630 503 795 635 1,670 506 118 1,910 2,010 1,990 289 271 316 166 485 555 305 353 321 4,000 3,460 Significant floods during 1970-89 Date (month/ day/year) 6/13/84 5/25/84 5/25/84 6/28/88 6/30/84 6/24/71 6/30/84 6/15/78 6/22/83 5/25/84 6/16/78 6/28/83 6/25/83 5/22/84 5/25/78 5/27/83 5/16/84 7/01/84 6/27/83 6/26/83 6/22/83 5/25/84 6/24/71 6/10/73 7/01/84 8/05/83 6/25/83 6/25/83 7/01/84 Stage (ft) 2.37 7.34 5.10 5.19 5.74 7.12 4.30 3.37 5.82 5.08 4.78 5.91 2.81 2.90 5.66 5.69 12.67 2.84 3.01 4.16 3.95 3.88 4.36 4.35 3.42 6.14 4.74 5.20 10.22 Dis- charge (tf/s) 126 5,260 5,720 290 409 677 241 464 2,220 1,850 1,270 1,960 630 558 795 743 1,670 506 118 1,530 1,990 2,010 271 289 316 485 555 353 3,460 Regu- lated during flood1 Y Y Y N Y N N N N N Y Y N N N N Y Y N N Y Y N N N N N N Y Recur- rence interval (years) -- <5 200 25 50 30 25 100 40-50 5 50-60 75-100 50 20 15 -- -- 50 10 20-25 20-25 10 25 75 200 500 500 -- Significant Floods, 1970 Through 1989, Colorado 149 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09058000 09058500 09058610 09058700 09058800 09058900 09059500 09060500 09060770 09061450 09063000 09063200 09063400 09063900 09064000 09064500 09065100 09065500 09066100 09066150 09066200 09066300 09066400 09067000 09070000 Station name Colorado River near Kremmling, CO Piney River below Piney Lake near Minturn, CO Dickson Creek near Vail, CO Freeman Creek near Minturn, CO East Meadow Creek near Minturn, CO Moniger Creek near Minturn, CO Piney River near State Bridge, CO Rock Creek near Toponas, CO Rock Creek at McCoy, CO Sweetwater Creek at mouth nearDotsero, CO Eagle River at Red Cliff, CO Wearyman Creek near Red Cliff, CO Turkey Creek near Red Cliff, CO Missouri Creek near Gold Park, CO Homestake Creek at Gold Park, CO Homestake Creek near Red Cliff, CO Cross Creek near Minturn, CO Gore Creek at upper station near Minturn, CO Bighorn Creek near Minturn, CO Pitkin Creek near Minturn, CO Booth Creek near Minturn, CO Middle Creek near Minturn, CO Red Sandstone Creek near Minturn, CO Beaver Creek at Avon, CO Eagle River below Gypsum, CO Total drainage area (mi2) 2,382 13.0 3.41 2.94 3.61 0.76 86.2 47.6 -- 105 70.0 8.78 23.8 6.39 36.0 58.2 34.2 14.4 4.54 5.32 6.02 5.94 7.32 14.8 945 Period of record 1905-18, 1962-70, 1972-93 1948-54, 1964-94 1972-94 1965-94 1965-82, 1984-93 1966-74, 1977-85, 1987-90 1945-83, 1986-94 1953-80 1984-94 1976, 1979-91, 1993 1911-25, 1944-94 1965-77, 1979-81, 1983-94 1964-94 1973-94 1948-54, 1975-94 1911-14, 1916-18, 1944-94 1957-63, 1968-94 1948-56, 1964-92, 1994 1964-83, 1986-89, 1991-94 1965-94 1965-83, 1985, 1987-94 1965-94 1964-94 1974-94 1947-94 Water year 1912 1985 1952 1979 1984 1984 1976 1984 1975 1989 1980 1983 1976 1962 1984 1976 1912 1984 1983 1985 1965 1975 1983 1953 1918 1957 1983 1983 1951 1973 1993 1985 1978 1975 1974 1983 1983 1983 1984 Stage (ft) 21.80 5.12 5.47 2.75 3.22 2.21 2.60 1.71 2.13 2.05 2.37 5.82 4.77 4.80 4.74 18.60 4.00 6.43 3.61 2.87 3.03 3.19 3.83 6.84 6.20 5.45 6.14 2.60 6.65 3.82 3.93 3.38 4.07 4.10 2.65 3.28 4.66 3.46 9.46 Dis- charge (ft3/s) 21,500 560 396 48 46 82 35 81 74 29 .. 1,220 494 482 1,760 7,390 1,010 846 155 556 515 300 164 1,080 1,300 754 715 662 514 225 115 265 355 210 116 113 215 249 7,020 Significant floods during 1970-89 Date (month/ day/year) 7/12/83 5/26/84 7/01/84 6/08/85 5/06/79 5/25/84 6/30/84 5/21/89 6/27/83 5/21/76 5/07/85 7/12/76 5/24/84 6/20/83 6/08/85 6/30/84 6/30/84 5/24/84 7/05/75 6/24/83 6/10/73 6/15/78 6/08/85 6/15/78 6/20/74 6/25/83 6/10/73 6/19/83 6/27/83 6/25/83 5/25/84 Stage (ft) 14.91 16.60 4.76 5.12 2.75 2.21 1.71 2.05 5.82 4.77 3.50 18.60 6.43 3.61 2.87 3.63 6.21 3.96 5.42 2.60 3.82 2.55 3.38 4.07 2.65 3.28 4.41 4.66 3.46 9.13 9.46 Dis- charge (tf/s) 10,100 13,600 449 560 48 82 81 29 1,220 494 968 7,390 846 155 556 268 930 943 738 662 225 221 265 355 116 113 207 215 249 6,660 7,020 Regu- lated during flood1 Y Y N N Y N N N N N Y N Y N N N Y Y N N N Y Y N N N N N N N N Recur- rence interval (years) 5 5-10 25 <200 50 >500 50 100 15 - .. 20-25 25 30 .. .. <10 20-25 30 20-25 .. 55 20 20 20 25 100 25 50-60 150 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09070500 09071300 09073300 09073400 09073700 09073800 09073900 09074000 09074800 09075700 09076520 09077200 09077600 09077800 09078100 09078200 09078600 09080300 09080400 09081550 09081600 09082800 09085000 09085100 Station name Colorado River near Dotsero, CO Grizzly Creek near Glenwood Springs, CO Roaring Fork River above Difficult Creek near Aspen, CO Roaring Fork River near Aspen, CO Hunter Creek above Midway Creek near Aspen, CO Midway Creek near Aspen, CO No Name Creek near Aspen, CO Hunter Creek near Aspen, CO Castle Creek above Aspen, CO Maroon Creek above Aspen, CO Owl Creek near Aspen, CO Fryingpan River near Ivanhoe Lake, CO Ivanhoe Creek near Norrie, CO South Fork Fryingpan River at upper station near Norrie, CO North Fork Fryingpan River above Cunningham Creek near Norrie, CO Cunningham Creek near Norrie, CO Fryingpan River near Thomasville, CO Rocky Fork Creek near Meredith, CO Fryingpan River near Ruedi, CO Crystal River at Placita, CO Crystal River above Avalanche Creek near Redstone, CO North Thompson Creek near Carbondale, CO Roaring Fork River at Glenwood Springs, CO Colorado River below Glenwood Springs, CO Total drainage area (mi2) 4,394 6.15 75.8 108 6.18 8.62 6.54 41.1 32.2 35.4 6.60 18.7 9.12 11.5 12.0 7.12 134 12.3 238 107 167 26.8 1,451 6,013 Period of record 1941-94 1977-94 1980-94 1965-94 1965-80 1971-80 1971-80 1950-56, 1970-87, 1989-94 1970-94 1970-94 1975-85, 1987-89 1964-82 1964-76 1964-82 1964-80 1964-80 1976-94 1969-82 1965-90, 1992-94 1960-73, 1975-77 1956-94 1964-79 1906-09, 1912, 1914-81, 1983-94 1967-94 Water year 1984 1986 1985 1985 1985 1973 1979 1971 1971 1985 1953 1984 1970 1980 1970 1984 1965 1971 1973 1971 1970 1975 1975 1987 1978 1965 1971 1973 1983 1970 1964 1957 1921 1984 Stage (ft) 14.20 4.99 5.20 5.10 5.29 3.18 6.77 3.17 5.48 2.33 7.02 3.64 3.88 3.39 3.52 2.39 3.02 4.62 5.90 3.35 3.36 4.07 2.89 4.50 1.74 5.16 6.00 6.23 6.12 4.00 4.05 8.64 8.70 12.49 Dis- charge (ft'/s) 22,200 364 320 2,350 2,230 580 239 290 163 1,170 1,010 559 398 836 382 90 391 356 197 326 278 381 335 1,550 101 2,690 1,940 1,930 4,180 365 322 19,000 17,600 31,500 Significant floods during 1970-89 Date (month/ day/year) 5/25/84 6/05/86 6/08/85 6/09/85 6/26/73 6/17/71 6/17/71 6/08/85 6/30/84 6/22/80 5/21/84 8/25/82 6/28/73 5/07/82 7/04/75 7/04/75 6/08/87 6/14/78 9/16/76 6/24/71 6/25/83 5/22/70 6/25/83 5/25/84 Stage (ft) 14.20 4.99 5.10 5.29 3.18 3.17 5.48 2.33 3.64 3.39 2.39 2.08 5.90 3.00 4.07 2.89 4.50 1.74 3.50 6.00 6.12 4.00 8.06 12.49 Dis- charge (ft3/s) 22,200 364 2,350 2,230 580 290 163 1,170 559 836 90 102 197 83 381 335 1,550 101 1,400 1,940 4,180 365 12,100 31,500 Regu- lated during flood1 Y N Y Y N N N N N N Y Y Y Y N N Y N Y N N N Y Y Recur- rence interval (years) 150 >500 >500 30 30 25 100 >500 50 >500 -- 15 " 20 50 -- 25 -- <10 90 10 5 >500 Significant Floods, 1970 Through 1989, Colorado 151 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09085200 09085300 09085400 09089500 09091100 09092500 09093000 09093500 09093700 09095000 09095500 09096500 09096800 09105000 09109000 09110000 09112200 09113300 091 14500 091 17000 09118450 09119000 09124500 09126000 Station name Canyon Creek above New Castle, CO East Canyon Creek near New Castle, CO Possum Creek near New Castle, CO West Divide Creek near Raven, CO Mamm Creek near Silt, CO Beaver Creek near Rifle, CO Parachute Creek near Parachute, CO Parachute Creek at Parachute, CO Colorado River near De Beque, CO Roan Creek near De Beque, CO Colorado River near Cameo, CO Plateau Creek near Coil- bran, CO Buzzard Creek below Owens Creek near Heiberger, CO Plateau Creek near Cameo, CO Taylor River below Taylor Park Reservoir, CO Taylor River at Almont, CO East River below Cement Creek near Crested Butte, CO Ohio Creek at Bladwin, CO Gunnison River near Gunnison, CO Tomichi Creek at Parlin, CO Cochetopa Creek below Rock Creek near Parlin, CO Tomichi Creek at Gunnison, CO Lake Fork at Gateview, CO Cimarron River near Cimarron, CO Total drainage area (mi2) 23.8 15.1 6.41 64.6 7.90 141 198 7,370 321 8,050 80.4 49.7 592 254 477 238 47.2 1,012 427 -- 1,061 334 66.6 Period of record 1969-86 1969-83 1969-82 1956-94 1980-91, 1993 1953-82 1949-54, 1965-70, 1975-86 1921-27, 1949-54, 1975-82 1967-94 1921-26, 1963-72, 1975-81 1935-94 1922-27, 1929-80 1956-70 1936-83, 1986-94 1939-94 1913, 1916, 1919-87, 1989-94 1964-72, 1980-81, 1994 1959-70 1912-14, 1916-28, 1945-94 1945-51, 1964-70 1982-93 1938-85, 1987-94 1938-94 1955-94 Water year 1983 1986 1978 1977 1978 1984 1983 1984 1964 1977 1976 1984 1980 1984 1922 1970 1957 1983 1957 1920 1957 1980 1970 1918 1957 1970 1984 1984 1983 1993 1957 Stage (ft) 5.78 8.15 3.42 2.49 2.52 5.83 6.00 11.92 4.00 6.11 9.47 14.83 9.21 14.36 6.90 5.75 5.82 8.51 7.56 5.00 5.32 8.30 3.62 6.74 7.04 4.49 5.49 4.18 4.37 8.32 Dis- charge (tf/s) 966 840 956 85 80 1,410 847 430 85 2,310 2,600 38,200 2,020 39,300 3,080 652 636 5,010 2,270 3,760 3,590 3,360 683 11,400 9,320 760 1,120 4,620 2,720 1,920 1,790 Significant floods during 1970-89 Date (month/ day/year) 6/19/83 6/11/78 8/25/77 5/28/83 5/14/84 6/06/84 5/28/79 8/19/77 7/31/76 5/26/84 5/11/80 6/26/83 5/26/84 6/14/73 5/17/70 6/15/73 6/22/83 7/01/84 6/26/84 6/12/80 5/18/70 5/25/84 5/20/70 5/23/84 5/23/70 5/23/84 7/10/83 6/10/73 Stage (") 5.78 3.42 2.49 6.00 5.83 11.92 3.90 6.11 9.47 14.83 9.21 13.17 14.36 5.26 5.75 7.99 8.51 6.63 4.73 8.30 3.62 5.42 7.04 4.49 4.18 5.49 4.18 6.05 Dis- charge (ft^s) 966 956 85 847 1,410 430 80 2,310 2,600 38,200 2,020 36,000 39,300 1,240 652 4,550 5,010 1,510 2,640 3,360 683 7,570 760 1,120 1,690 4,620 2,720 1,560 Regu- lated during flood1 N N N N N N N N N Y N Y Y Y N Y Y Y Y N N Y N Y N N N Y Recur- rence interval (years) 15-20 40-50 10 20 175 10 75 75 >500 25 50 100 2-5 15 50 100 20-25 2-5 25-30 20 15-20 20 -- 20 >500 20 15-20 152 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09128500 09129600 09131100 09131200 09132500 09135900 09136200 09137050 09143000 09143500 09144200 09144250 09146200 09147000 09147500 09149450 09149500 09151500 09151700 09152650 09152900 09153200 09153290 Station name Smith Fork near Crawford, CO Smith Fork near Lazear, CO Cow Creek near Paonia, CO West Muddy Creek near Somerset, CO North Fork Gunnison River near Somerset, CO Leroux Creek at Hotchkiss, CO Gunnison River near Lazear, CO Currant Creek near Read, CO Surface Creek near Cedaredge, CO Surface Creek at Cedaredge, CO Tongue Creek at Cory, CO Gunnison River at Delta, CO Uncompahgre River near Ridgway, CO Dallas Creek near Ridgway, CO Uncompahgre River at Colona, CO Dry Creek near Olathe, CO Uncompahgre River at Delta, CO Escalante Creek near Delta, CO Deer Creek tributary near Dominguez, CO Leach Creek at Durham, CO Adobe Creek near Fruita, CO Little Salt Wash tributary near Fruita, CO Reed Wash near Mack, CO Total drainage area (mi2) 42.8 166 12.0 49.9 526 66.7 5,241 56.9 27.4 39.0 197 5,628 149 97.2 448 102.00 1,115 209 4.79 24.8 15.4 3.13 15.7 Period of record 1936-81, 1983-94 1976-84, 1986 1969-82 1962-73 1934-81, 1983-94 1976-94 1962-85 1976-87 1940-94 1917-76, 1978-94 1958-68, 1976-87 1976-82, 1984-94 1959-82, 1984-92, 1994 1922-27, 1956-71, 1980-94 1903-05, 1921-94 1980-85, 1987-91, 1993 1903-06, 1908-11, 1914,1916, 1921-31, 1939-86, 1988-89, 1992-94 1976-83, 1985-89 1971-80 1973-83 1973-83 1971-81 1976-92, 1994 Water year 1984 1983 1984 1975 1973 1984 1984 1984 1984 1984 1957 1941 1984 1984 1984 1984 1923 1984 1921 1970 1982 1984 1977 1977 1974 1983 1981 1983 1991 Stage (ft) 8.28 9.26 9.28 3.01 3.97 8.20 11.82 8.57 5.73 3.67 3.96 2.50 3.44 6.77 13.15 5.48 4.40 6.40 - 5.71 5.50 8.85 8.54 12.86 6.76 6.75 12.20 6.21 Dis- charge (ft3/s) 1,410 800 1,610 281 1,190 9,220 1,880 19,800 644 824 517 1,190 862 2,130 25,500 1,970 1,120 680 4,080 2,660 1,040 5,800 2,050 178 632 243 193 390 235 Significant floods during 1970-89 Date (month/ day/year) 5/28/79 5/15/84 5/18/84 6/14/75 5/14/73 5/24/84 6/07/84 6/07/84 6/07/84 5/18/73 6/08/80 6/07/84 5/18/73 5/30/83 6/07/84 6/07/84 6/07/84 9/06/70 5/24/84 7/21/83 6/24/83 5/25/84 7/27/82 5/15/84 7/24/77 7/24/77 7/18/74 8/10/83 7/-/81 7/23/83 Stage (ft) 6.90 8.28 9.28 3.01 3.97 8.20 11.82 8.57 5.73 3.21 3.32 3.67 .. 3.37 3.44 6.77 13.15 5.38 5.48 6.13 4.74 5.54 5.50 8.85 8.54 12.86 6.76 6.75 12.20 Regu- Recur. Dis- lated rence charge during interval (ft3/s) flood1 (years) 1,180 1,410 1,610 281 1,190 9,220 1,880 19,800 644 624 630 824 730 724 862 2,130 25,500 1,890 1,970 998 3,460 3,900 1,040 5,800 2,050 178 632 243 193 390 N N Y Y Y Y N Y Y Y Y Y Y Y Y Y Y N N Y Y Y N Y N N N N N Y 50 150 15-20 25 10 90 50 50-60 15-20 40-50 40-50 200 20-25 20-25 30-40 500 100-150 20 25 40-50 25-30 50-60 .. >500 10 - 25-30 50 - 200 Significant Floods, 1970 Through 1989, Colorado 153 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09153300 09153400 09163050 09163300 09163310 09163490 09163500 09165000 09166950 09168100 09168700 09169500 09169800 09171100 09172500 09175800 09175900 09177000 09236000 09239500 09241000 09243700 09243800 Station name Reed Wash near Loma, CO West Salt Creek near Mack, CO Badger Wash near Mack, CO East Salt Creek tributary near Mack, CO East Salt Creek near Mack, CO Salt Creek near Mack, CO Colorado River near CO- UT State line Dolores River below Rico, CO Lost Canyon Creek near Dolores, CO Disappointment Creek near Dove Creek, CO Disappointment Creek tributary near Slick Rock, CO Dolores River at Bedrock, CO East Paradox Creek tributary near Bedrock, CO Dolores River near Bedrock, CO San Miguel River near Placerville, CO Dead Horse Creek near Naturita, CO Dry Creek near Naturita, CO San Miguel River at Uravan, CO Bear River near Toponas, CO Yampa River at Steamboat Springs, CO Elk River at Clark, CO Middle Creek near Oak Creek, CO Foidel Creek near Oak Creek, CO Total drainage area (mi2) 29.3 168 6.51 1.48 197 436 17,843 105 71.3 147 1.73 2,024 4.14 2,145 308 5.30 78.6 1,499 23.0 604 216 23.5 8.61 Period of record 1973-83 1974-83 1973-82 1971-80 1972-82 1972-82 1951-94 1952-94 1984-94 1958-86 1970-81 1918-22, 1971-88, 1990-94 1970-80 1970-94 1909, 1912, 1930-34, 1942-83, 1985-94 1970-80 1967-78 1954-62, 1970, 1974-94 1953-65, 1967-81, 1983-86 1904-06, 1910-94 1912, 1921-22, 1930-73, 1975-91 1976-94 1976-80, 1983, 1985-94 Water year 1983 1982 1977 1975 1974 1972 1984 1957 1984 1952 1986 1983 1971 1973 1979 1970 1973 1909 1985 1977 1970 1970 1957 1978 1921 1905 1984 1921 1984 1980 Stage (ft) 7.24 7.43 4.75 12.70 9.95 5.69 16.12 16.40 5.95 6.15 7.23 13.54 15.66 12.09 12.39 19.17 12.88 8.06 25.25 8.31 12.60 4.01 6.64 8.90 6.12 7.10 4.08 3.38 Dis- charge (ftVs) 435 1,430 618 95 2,630 1,680 69,800 56,800 2,170 2,120 744 8,140 260 9,280 8,520 368 9,500 10,000 1,950 1,250 5,660 8,910 436 430 6,820 4,550 4,910 3,920 329 55 Significant floods during 1970-89 Date (month/ day/year) 7/23/83 8/15/82 7/04/77 6/08/75 7/18/74 9/19/72 6/27/83 5/27/84 5/24/84 4/02/86 8/08/83 8/27/71 4/30/73 5/05/86 9/--/70 4/30/73 6/24/83 8/15/77 9/05/70 9/06/70 5/10/83 6/26/78 4/26/74 5/23/84 6/06/86 5/14/84 4/21/80 Stage (ft) 7.24 7.43 4.75 12.70 9.95 5.69 15.02 16.12 5.95 7.23 13.54 15.66 12.09 9.12 19.17 12.88 6.20 25.25 8.31 12.60 10.14 4.01 6.96 6.12 6.03 4.08 3.38 Dis- charge (ftVs) 435 1,430 618 95 2,630 1,680 62,100 69,800 2,170 744 8,140 260 9,280 5,230 368 9,500 3,830 1,250 5,660 8,910 8,050 430 5,790 4,910 4,720 329 55 Regu- lated during flood1 Y N Y N N N Y Y N Y N N N Y N Y N N N Y Y Y N N N N Y Recur- rence interval (years) 10 75-100 -- 15-20 15-20 100 200 25 -- 50-60 -- 10-15 2-5 5-10 150-200 -- 50-75 30-40 20-25 50-60 30 175-200 100 30-40 5 154 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09243900 09244100 09244410 09244500 09245000 09245500 09248600 09249200 09249750 09250000 09250507 09250510 09251000 09253000 09255000 09258000 09260000 09260050 09302450 09302500 09303000 09303300 09303320 09303400 Station name Foidel Creek at mouth near Oak Creek, CO Fish Creek near Milner, CO Yampa River below diversion near Hayden, CO Elkhead Creek near Clark, CO Elkhead Creek near Elkhead, CO North Fork Elkhead Creek near Elkhead, CO East Fork of Williams Fork above Willow Creek, CO South Fork of Williams Fork near Pagoda, CO Williams Fork at mouth near Hamilton, CO Milk Creek near Thornburgh, CO Wilson Creek above Taylor Creek near Axial, CO Taylor Creek at mouth near Axial, CO Yampa River near Maybell, CO Little Snake River near Slater, CO Slater Fork near Slater, CO Willow Creek near Dixon, WY Little Snake River near Lily, CO Yampa River at Deerlodge Park, CO Lost Creek near Buford, CO Marvine Creek near Buford, CO North Fork White River at Buford, CO South Fork White River at Budges Resort, CO Wagonwheel Creek at Budges Resort, CO South Fork White River near Budges Resort, CO Total drainage area (mi2) 17.5 34.5 1,430 45.4 64.2 21.0 108 46.7 419 65.0 20.0 7.22 3,410 285 161 24.0 3,730 7,660 21.5 59.7 259 52.3 7.36 128 Period of record 1976-80, 1983-94 1956-73 1966-86 1944, 1959-73 1953-94 1959-73 1957-72 1966-77, 1979 1984-94 1953-86 1981-92 1976-77, 1979-92 1904-05, 1916-94 1943-47, 1951-81, 1983-94 1911-12, 1933-81, 1983-94 1954-81, 1983-93 1923-30, 1932-94 1982-94 1965-89 1973-84 1912, 1915, 1920, 1952-94 1976-94 1976-89 1976-94 Water year 1980 1970 1984 1974 1970 1984 1970 1964 1970 1974 1970 1984 1984 1984 1984 1986 1984 1984 1974 1984 1984 1984 1926 1984 1974 1976 1984 1984 1983 1985 1983 Stage (ft) 5.18 6.74 11.45 11.90 6.17 7.58 4.50 4.53 7.05 3.97 4.06 9.96 7.36 8.71 2.25 3.27 12.42 8.78 8.95 11.78 6.02 9.85 10.50 19.13 7.53 4.01 4.13 6.76 6.57 4.64 6.18 Dis- charge (ftVs) 90 342 13,100 12,300 1,060 2,850 1,100 575 1,570 910 878 4,750 1,580 352 41 38 25,100 4,780 4,180 2,250 476 16,700 14,200 33,200 944 442 410 3,550 2,750 336 3,770 Significant floods during 1970-89 Date (month/ day/year) 4/22/80 5/18/70 5/16/84 5/18/70 5/27/83 5/20/84 5/21/70 5/19/70 5/09/74 5/16/84 5/10/74 5/14/84 5/14/84 5/15/84 5/17/84 5/28/83 5/23/84 5/08/74 5/16/84 5/10/84 3/31/86 5/18/84 5/18/84 5/09/74 6/09/76 5/24/84 6/25/83 6/08/85 6/22/83 Stage (ft) 5.18 6.74 11.45 6.17 7.17 7.58 4.50 7.05 3.97 9.96 5.03 7.36 8.71 2.25 12.42 8.09 8.78 10.75 11.78 6.02 5.47 9.85 19.13 7.53 4.01 6.76 6.57 4.64 6.18 Regu- Dis- lated charge during (ft3/s) flood1 90 342 13,100 1,060 1,950 2,850 1,100 1,570 910 4,750 1,050 1,580 352 41 25,100 4,200 4,780 1,860 2,250 476 351 16,700 33,200 944 442 3,550 2,750 336 3,770 N N Y N N N N N N N N N N N Y N N N N N N N Y N N N N N N Recur- rence interval (years) 20-25 20 20-25 10 20 200 30 15-20 20 - 20 75 ._ 40-50 >500 30-35 90-100 40 150 90-100 20 >500 - 15 10 200 100 15-20 25 Significant Floods, 1970 Through 1989, Colorado 155 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 28) 09303500 09304000 09304200 09304500 09304800 09306007 09306036 09306039 09306042 09306052 09306058 09306061 09306200 09306222 09306235 09306240 09306242 09306255 09306290 09306300 09339900 09340000 09342500 Station name South Fork White River near Buford, CO South Fork White River at Buford, CO White River above Coal Creek near Meeker, CO White River near Meeker, CO White River below Meeker, CO Piceance Creek below Rio Blanco, CO Sorghum Gulch at mouth near Rio Blanco, CO Cotton wood Gulch near Rio Blanco, CO Piceance Creek tributary near Rio Blanco, CO Scandard Gulch at mouth near Rio Blanco, CO Willow Creek near Rio Blanco, CO Piceance Creek above Hunter Creek near Rio Blanco, CO Piceance Creek below Ryan Gulch near Rio Blanco, CO Piceance Creek at White River, CO Corral Gulch below Water Gulch near Rangely, CO Box Elder Gulch near Rangely, CO Corral Gulch near Rangely, CO Yellow Creek near White River, CO White River below Boise Creek near Rangely, CO White River above Rangely, CO East Fork San Juan River above Sand Creek near Pagosa Springs, CO East Fork San Juan River near Pagosa Springs, CO San Juan River at Pagosa Springs, CO Total drainage area (mi2) 152 177 648 755 1,024 177 3.62 1.20 1.06 7.97 48.4 309 506 652 8.61 9.21 31.6 262 2,530 2,773 64.1 86.9 298 Period of record 1906, 1914-15, 1943-47, 1967-92 1920, 1952-94 1962-94 1901, 1910-94 1962-79, 1981-94 1974-94 1974-85 1974-77, 1979-85 1974-77, 1979-92 1974-76, 1978-85 1974-85 1974-87 1965-94 1965-66, 1971-86, 1988-93, 1995 1975-82, 1984-89 1975-85 1974-94 1965, 1973-82, 1988-89, 1991-94 1983-94 1972-82 1957-94 1935-80 1911-14, 1927, 1935-94 Water year 1983 1906 1983 1957 1983 1984 1901 1983 1984 1977 1984 1985 1984 1984 1984 1983 1985 1984 1985 1983 1978 1977 1981 1981 1984 1978 1984 1975 1970 1970 1912 Stage (ft) 7.73 8.20 6.27 7.07 7.07 6.12 6.50 4.97 5.06 7.01 7.47 11.49 3.96 6.38 1.77 5.16 5.65 5.85 7.70 7.81 7.04 3.20 3.44 4.37 6.12 12.97 8.45 7.02 6.75 4.85 17.80 Dis- charge (tf/s) 3,620 3,230 3,150 3,000 5,740 6,950 5,000 6,590 6,320 520 419 250 514 506 32 89 612 458 550 480 625 272 264 332 1,780 6,800 6,440 4,260 2,260 2,460 25,000 Significant floods during 1970-89 Date (month/ day/year) 6/24/83 6/16/78 6/26/83 6/26/83 5/25/84 6/26/83 5/25/84 6/26/83 5/25/84 7/19/77 7/12/85 8/16/84 8/01/84 8/01/84 7/22/83 5/16/85 5/16/84 5/05/85 9/07/78 7/23/77 9/07/81 8/18/84 9/07/78 6/07/84 6/09/75 9/14/70 9/14/70 9/06/70 Stage (ft) 7.73 7.00 6.27 7.07 7.05 5.89 6.12 4.97 5.06 7.01 11.49 3.96 6.38 1.77 5.16 5.65 7.74 7.70 7.04 3.20 4.37 6.12 12.97 8.45 7.02 6.75 4.85 9.02 Dis- charge (tf/s) 3,620 3,000 3,150 5,740 5,700 6,700 6,950 6,590 6,320 520 250 514 506 32 89 612 525 550 625 272 332 1,780 6,800 6,440 4,260 2,260 2,460 6,580 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N Y N N N N Recur- rence interval (years) >500 30 50 200 200 100 150-200 >500 >500 15-20 75 -- 30 >500 20 15-20 35 40-45 40-50 20 30-35 60 100-150 -- 10 100 75 75-100 156 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09343000 09344000 09344300 09344400 09345200 09346400 09349500 09349800 09352900 09354500 09355000 09361000 09361400 09361500 09363050 09363100 09363200 09363500 09365500 09366500 09371010 09371300 09371420 Station name Rio Blanco near Pagosa Springs, CO Navajo River at Banded Peak Ranch near Chromo, CO Navajo River above Chromo, CO Navajo River below Oso Diversion Dam near Chromo, CO Little Navajo River below Lake Oso Diversion Dam near Chromo, CO San Juan River near Carracas, CO Piedra River near Piedra, CO Piedra River near Arboles, CO Vallecito Creek near Bayfield, CO Los Pinos River at La Boca, CO Spring Creek at La Boca, CO Hermosa Creek near Hermosa, CO Junction Creek near Durango, CO Animas River at Durango, CO Florida River below Florida Farmers Ditch near Durango, CO Salt Creek near Oxford, CO Florida River at Bondad, CO Animas River near Cedar Hill, NM La Plata River at Hesperus, CO La Plata River at CO-NM State line San Juan River at Four Corners, CO McElmo Creek tributary near Cortez, CO McElmo Creek above Total drainage area (mi2) 58.0 69.8 96.4 101 14.2 1,230 371 629 72.1 510 58.0 172 26.3 692 107 17.7 221 1,090 37.0 331 14,600 4.43 147 Period of record 1935-71 1937-94 1957-70 1971-94 1971-83, 1985-93 1962-94 1940-73 1963-94 1963-92, 1994 1951-85, 1987-94 1951-94 1920-28, 1940-80 1960-65, 1980-91, 1993 1909, 1912, 1922, 1924-94 1968-82 1957-63, 1968-83 1958-63, 1968-83 1935-93 1905-06, 1917-90, 1992-94 1920-85, 1987-94 1978-93 1971-81 1973-86 Water year 1970 1949 1980 1952 1970 1984 1993 1979 1981 1970 1970 1957 1970 1970 1957 1970 1941 1920 1980 1965 1912 1973 1975 1973 1973 1949 1941 1970 1927 1934 1979 1977 1981 Stage (ft) 3.70 4.12 4.55 4.89 8.20 4.92 4.93 - 2.09 8.34 7.92 8.60 6.38 6.51 8.95 4.62 6.02 9.00 3.64 4.66 11.00 5.70 5.75 5.24 6.30 11.45 3.30 5.13 10.80 6.25 22.20 6.08 Dis- charge (frVs) 2,500 958 1,480 964 1,400 1,330 1,210 235 233 9,730 7,980 6,870 8,370 7,050 6,400 1,980 2,980 2,790 600 300 25,000 1,100 975 811 1,640 13,100 1,880 1,230 4,750 4,390 16,900 1,750 864 Significant floods during 1970-89 Date (month/ day/year) 9/06/70 9/14/70 6/09/80 9/14/70 5/24/84 5/30/79 9/06/70 9/06/70 9/06/70 4/22/80 9/06/70 6/10/80 9/06/70 9/06/70 10/19/72 7/29/89 5/19/73 ~/~/80 9/06/70 5/19/73 10/19/72 10/19/72 9/06/70 10/20/72 9/06/70 7/25/77 5/29/79 8/18/77 7/15/81 Stage (ft) 3.70 4.50 4.55 8.20 4.92 - 8.34 7.92 6.38 5.80 6.51 3.43 7.68 4.62 4.19 3.34 5.15 3.64 8.83 5.70 5.24 6.30 11.30 10.56 5.13 9.45 6.25 22.20 6.08 Dis- charge (ft3*!) 2,500 1,350 1,480 1,400 1,330 235 9,730 7,980 8,370 6,140 7,050 1,600 4,160 1,980 1,640 866 2,680 600 11,600 1,100 811 1,640 12,100 10,600 1,230 3,400 16,900 1,750 864 Regu- lated during flood1 N N Y N Y Y N N N N N N Y N N Y N N N Y N Y Y Y N N Y N N Recur- rence interval (years) 150-200 40-50 50-55 25 - - 30-40 50 60-70 15-20 >500 <5 25 75 40 10 15-20 >500 30 10-15 30-35 25 25 15-20 20-25 >500 10 Alkali Canyon near Cortez, CO Significant Floods, 1970 Through 1989, Colorado 157 Table 7. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Colorado Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 28) 09371700 09372000 Station name McElmo Creek below Cortez, CO McElmo Creek near CO- UT State line Total drainage area (mi2) 283 346 Period of record 1973-83 1951-94 Water year 1977 1967 1970 Stage (ft) 8.96 7.58 8.13 Dis- charge (ftVs) 2,130 3,040 2,880 Significant floods during 1970-89 Date (month/ Stage day/year) (ft) 7/19/77 8.96 9/06/70 8.13 Dis- charge (ftVs) 2,130 2,880 Regu- lated during flood1 N N Recur- rence interval (years) 25 30-40 1 Regulated during flood: N, no; Y, yes. 158 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Connecticut Hydroclimatology Connecticut is located on the East Coast and is bordered on the south by Long Island Sound, an inlet of the Atlantic Ocean. Connecticut's climate is temperate humid. The primary sources of moisture are the Atlantic Ocean and the Gulf of Mexico. The proximity of the Atlantic Ocean to Connecticut has a distinct effect on the State's climate. The four primary weather systems that generally affect Connecticut are: (1) coastal storms of extratropical origin called "northeasters"; (2) low-pressure sys- tems that move northeastward along the Appalachian Mountains; (3) tropical cyclones, including hurricanes; and (4) local thunderstorms. The precipitation in the State is gen- erally plentiful and distributed evenly over the entire State, averaging about 46 in. On the basis of regionalization procedures that relate flood characteristics to water- shed and climatic characteristics, the magnitude of maximum discharges for streams in Connecticut is dependent on drainage area of the basin, 24-hour precipitation, channel length, channel slope, and percentage of drainage area underlain by coarse-grained stratified drift (Jennings and others, 1994). Significant Floods The flood of June 1982 was the most extensive in Connecticut during 1970-89. Thirty percent of the streamflow-gaging stations recorded significant discharges. The flood was caused by a low-pressure system that formed over the Gulf States and moved northward. The storm affected primarily south-central and southeastern Connecticut. Approximately 25 percent of the State was affected by floods equal to or exceeding the 100-year recurrence interval. Flash flooding occurred on numerous small streams throughout most of Connecticut. The effects of the June 4-7 storm were compounded in many locations by 4 in. of rain that saturated the soils and filled reservoirs to near capacity the previous week. Throughout the State, precipitation totals were high. The central and south-central parts of the State received from 8 to 16 in. of rain in approxi- mately 48 hours. In Connecticut, the 24-hour precipitation for a recurrence interval of 100 years is between 7 and 8 in. The 48-hour precipitation for a recurrence interval of 100 years is between 9 and 10 in. (Hershfield, 1961). The location of streamflow-gaging stations in Connecticut that had significant floods for 1970-89 is shown in figure 29 by station number. The specific data for each significant flood are listed in table 8. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: U.S. Department of Com- merce, Weather Bureau Technical Paper 40, 115 p. Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geo- logical Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geological Survey Water-Resources Investigations Report 94-4002, 196 p. Significant Floods, 1970 Through 1989, Connecticut 159 73°15' 42°. 73° MASSACHUSETTS 30' 15' 72= 71°45' ATLANTIC OCEAN *ti Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' EXPLANATION Appalachian Mountains 10 i 20 , i 30 MILES 20 30 KILOMETERS 01195200 si Streamflow-gaging station and number Figure 29. Location of streamflow-gaging stations with significant floods during 1970-89 for Connecticut. 160 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 8. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Connecticut [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; -, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1995 Station number (fig.29) 01118300 01118750 01119255 01119300 01119360 01119600 01119820 01120000 01120500 01121000 01121300 01122000 01122680 01123000 01124151 01125300 01125600 01125650 01125900 01126500 01126600 01 126700 01127000 01127400 01127500 Station name Pendleton Hill Brook near Clarks Falls, CT Haleys Brook near Old Mystic, CT Delphi Brook near Staffordville, CT Roaring Brook near Staffordville, CT Conat Brook at West Willington, CT Ash Brook near North Coventry, CT Skungamaug River at North Coventry, CT Hop River near Columbia, CT Safford Brook near Woodstock Valley, CT Mount Hope River near Warrenville, CT Fenton River at East Willington, CT Natchaug River at Willimantic, CT Merrick Brook near Scotland, CT Little River near Hanover, CT Quinebaug River at West Thompson, CT English Neighborhood Brook at North Woodstock, CT Mashamoquet Brook at Abington, CT Wappoquia Brook near Pomfret, CT Cady Brook at East Punam, CT Moosup River at Moosup, CT Blackwell Brook near Brooklyn, CT Kitt Brook near Canterbury, CT Quinebaug River at Jewett City, CT Susquetonscut Brook at Yantic, CT Yantic River at Yantic, CT Total drainage area (mi2) 4.02 4.37 2.59 5.61 2.40 2.79 24.7 74.8 4.15 28.6 11.4 174 5.21 30.0 172 4.66 11.1 4.21 8.29 83.6 17.0 11.1 713 15.7 89.3 Period of record 1959-95 1962-84 1964-76 1960-84 1964-83 1960-70 1963-75 1933-84 1951-81 1938, 1941-95 1964-76 1931-95 1964-84 1936, 1938, 1952-95 1967-89 1962-84 1963-76 1964-84 1964-84 1933-67, 1970-84 1962-76 1964-76 1919-95 1962-76 1931-95 Water year 1982 1982 1974 1982 1979 1970 1966 1973 1974 1982 1938 1955 1979 1955 1938 1974 1938 1982 1982 1987 1955 1982 1973 1970 1978 1938 1936 1970 1973 1955 1970 1938 1982 Stage (ft) 6.73 5.23 2.07 4.56 4.92 3.10 4.90 4.01 4.21 16.72 16.25 6.68 6.95 10.41 14.50 5.33 16.39 4.88 8.31 6.45 20.10 7.55 4.94 5.16 4.51 8.20 8.35 7.76 3.39 29.00 6.51 14.66 14.88 Dis- charge (ft3/s) 300 720 310 920 150 260 170 1,600 1,800 6,940 6,450 1,000 830 5,590 750 32,000 1,020 2,450 2,820 48,200 1,200 820 850 950 4,100 4,260 1,100 400 40,700 1,400 .. 9,850 Significant floods during 1970-89 Date (month/ day/year) 6/05/82 12/03/86 6/05/82 12/21/73 6/05/82 1/25/79 4/02/70 2/03/73 12/21/73 6/06/82 1/21/79 1/25/79 12/21/73 1/29/79 6/05/82 6/06/82 4/10/87 6/05/82 2/02/73 4/02/70 1/26/78 1/25/78 4/02/70 2/02/73 1/26/78 4/02/70 1/21/79 1/25/79 6/06/82 Stage (ft) 6.73 6.49 5.23 2.07 4.56 4.92 3.10 4.01 4.21 16.72 6.95 9.09 5.33 8.89 4.88 8.31 6.45 7.55 4.94 5.16 4.51 7.20 7.76 3.39 19.82 6.51 12.64 12.42 14.88 Dis- charge (tf/s) 300 280 720 310 920 150 260 1,600 1,800 6,940 830 3,080 750 3,500 1,020 2,450 2,820 1,200 820 850 950 3,200 1,100 400 18,600 1,400 7,860 7,580 9,850 Regu- lated during flood1 N N N N N N N N N N N N N Y N N Y N N N N Y N N Y N N N N Recur- rence interval (years) 20 15 50-100 10-25 50-100 15 5-10 10-25 10-25 75-100 20-30 25 10-25 - 30-50 40 - 30-50 5-10 30-50 20 - 10-25 10-25 - -- 25 25 50 Significant Floods, 1970 Through 1989, Connecticut 161 Table 8. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Connecticut Continued Maximum stage and discharge for period of record through 1995 Station number (fig.29) 01127700 01127760 01127800 01183990 01184000 01184100 01184260 01184300 01184490 01184500 01186500 01187300 01187800 01188000 01188090 01188100 01189000 01189200 01189390 01190000 01190070 01190100 01190500 01191000 01191900 Station name Trading Cove Brook near Thamesville, CT Hunts Brook at Old Norwich Road at Quaker Hill, CT Fourmile River near East Lyme, CT Jawbuck Brook near Hazardville, CT Connecticut River at Thompsonville, CT Stony Brook near West Suffield, CT Namerick Brook near Warehouse Point, CT Gillette Brook at Somers, CT Broad Brook at Broad Brook, CT Scantic River at Broad Brook, CT Still River at Robertsville, CT Hubbard River near West Hartland, CT Nepaug River near Nepaug, CT Burlington Brook near Burlington, CT Farmington River at Unionville, CT Roaring Brook at Unionville, CT Pequabuck River at Forestville, CT Stratton Brook near Simsbury, CT East Branch Salmon Brook at Granby, CT Farmington River at Rainbow, CT Connecticut River at Hartford, CT Piper Brook at Newington Junction, CT South Branch Park River at Hartford, CT North Branch Park River at Hartford, CT Charter Brook near Crystal Lake, CT Total drainage area (mi2) 8.6 11.5 4.30 2.16 9,660 10.4 2.6 3.64 15.5 98.2 85.0 19.9 23.5 4.10 378 7.60 45.8 5.13 39.5 590 10,487 14.6 39.9 26.8 8.51 Period of record 1961-74 1964-76 1961-84 1967-76 1929-95 1960-95 1964-84 1960-84 1938, 1962-76, 1982-95 1929-84 1936, 1938, 1949-95 1938-55, 1957-95 1922-55, 1958-80, 1982-84 1932-95 1978-95 1962-84 1938, 1942-95 1964-84 1964-76 1928, 1936-86 1683, 1692, 1801, 1828, 1838-39, 1841, 1843-1992 1955, 1958-84 1936-72, 1974-81 1936-86 1965-84 Water year 1973 1972 1982 1976 1936 1982 1974 1975 1975 1955 1938 1955 1955 1955 1974 1955 1980 1982 1955 1982 1975 1955 1936 1980 1980 1955 1955 1938 1974 Stage (ft) 5.69 5.71 9.24 4.24 16.60 5.83 5.92 6.38 6.56 19.90 16.08 16.48 16.50 - 7.20 9.22 16.57 3.14 13.22 4.01 9.84 23.50 37.05 11.62 13.19 19.65 18.80 11.80 4.52 Dis- charge (ftVs) 940 650 1,280 90 282,000 1,280 620 375 1,140 13,300 7,360 44,000 10,500 10,000 2,280 1,690 20,300 900 11,700 390 1,940 69,200 313,000 2,400 5,630 5,000 10,000 3,000 600 Significant floods during 1970-89 Date (month/ day/year) 2/02/73 6/19/72 6/05/82 1/28/76 5/31/84 6/06/82 12/21/73 5/30/84 9/27/75 6/05/82 9/27/75 1/27/76 5/30/84 12/21/73 3/22/80 3/21/80 4/04/87 12/21/73 3/22/80 3/19/83 3/23/80 6/05/82 6/05/82 6/05/82 9/26/75 6/07/82 6/01/84 10/03/79 10/03/79 6/06/82 12/21/73 Stage («) 5.69 5.71 9.24 4.24 10.80 5.83 5.92 14.68 6.38 5.58 6.56 6.38 11.39 8.99 8.88 11.21 9.71 7.20 6.94 7.85 16.57 3.14 9.88 4.01 9.84 11.70 .. 11.62 13.19 11.86 4.52 Dis- charge (ft3/s) 940 650 1,280 90 186,000 1,280 620 555 375 290 1,140 1,090 2,900 6,690 6,450 4,710 3,320 2,280 2,120 810 20,300 900 4,990 390 1,940 19,600 192,000 2,400 5,630 3,270 600 Regu- lated during flood1 N N N N Y N N N N N N N N Y Y N N N N N Y N N N N Y Y N Y Y N Recur- rence interval (years) 10-25 10-25 >100 - 75-100 50-75 20 25 20-30 15 20-30 20-30 30 .. -- 35 15 20-30 20-30 20 - 30-50 20 20 5-10 - .. 25-50 .. .. 15 162 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 8. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Connecticut Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 29) 01192500 01192600 01192650 01192700 01192800 01192883 01 192890 01193000 01193120 01 193250 01193300 01193500 01194000 01194500 01195100 01195200 01 196500 01196580 . 01196600 01 196620 01196700 01 198500 01198860 01199000 01199050 Station name Hockanum River near East Hartford, CT South Branch Salmon Brook at Buckingham, CT Roaring Brook at Hopewell, CT Mattabesset River at East Berlin, CT Parmalee Brook near Durham, CT Coginchaug River at Middlefield, CT Coginchaug River at Rockfall, CT Connecticut River at Middletown, CT Ponset Brook near Higganum, CT Judd Brook near Colchester, CT Blackledge River near Gilead, CT Salmon River near East Hampton, CT Eightmile River at North Plain, CT East Branch Eightmile River near North Lyme, CT Indian River near Clinton, CT Neck River near Madison, CT Quinnipiac River at Wallingford, CT Muddy River near North Haven, CT Willow Brook near Cheshire, CT Mill River near Hamden, CT Wepawaug River at Milford, CT Blackberry River at Canaan, CT Deming Brook near Huntsville, CT Housatonic River at Falls Village, CT Salmon Creek at Lime Rock, CT Total drainage area (mi2) 73.4 0.94 24.3 46.5 2.79 29.8 34.7 10,887 5.72 3.93 6.75 100 20.1 22.3 5.68 6.55 115 18.0 9.34 24.5 18.4 45.9 1.08 634 29.4 Period of record 1920-21, 1929-95 1961-76 1962-76 1962-76, 1979 1960-84 1981-95 1962-80 1814, 1854, 1860, 1862, 1928, 1936, 1938, 1947-95 1962-77, 1982 1962-79 1960-84 1929-95 1938-84 1938-82 1982-95 1962-82 1931-95 1963-74 1960-76, 1979-83 1969-70, 1979-95 1962-84 1949-81 1971-84 1913-95 1949, 1955, 1962-95 Water year 1938 1972 1970 1970 1979 1982 1982 1979 1936 1938 1982 1973 1979 1982 1938 1982 1982 1982 1982 1982 1982 1970 1982 1982 1982 1955 1980 1949 1955 Stage (ft) 13.78 5.00 5.34 7.73 5.76 5.76 12.23 6.27 28.20 25.75 .. 5.14 4.86 5.66 10.96 14.40 11.12 10.22 8.29 7.75 14.02 3.01 6.15 9.53 9.89 13.01 2.50 19.40 13.50 Dis- charge (ft3/s) 5,160 115 1,240 2,980 517 517 2,110 1,960 267,000 239,000 1,700 900 625 480 12,400 18,500 5,800 5,170 2,600 1,040 8,200 1,300 3,000 5,580 5,020 14,200 520 23,900 6,300 Significant floods during 1970-89 Date (month/ day/year) 1/25/79 9/19/72 4/02/70 2/03/70 2/03/70 1/25/79 1/25/79 6/05/82 6/06/82 1/25/79 6/02/84 6/05/82 2/02/73 1/25/79 6/05/82 1/25/79 6/06/82 1/21/79 6/06/82 6/06/82 6/05/82 6/05/82 1/25/79 6/06/82 2/03/70 6/06/82 6/06/82 6/06/82 1/25/79 3/21/80 5/31/84 5/29/84 3/06/79 Stage (ft) 11.93 5.00 5.34 5.23 7.73 7.60 5.76 5.76 12.23 6.27 21.27 - 5.14 4.86 5.66 12.67 14.40 8.24 11.12 10.22 8.29 7.75 12.93 14.02 3.01 6.15 9.53 9.89 9.16 2.50 16.56 7.01 5.90 Dis- charge (ft3/s) 3,260 115 1,240 1,180 2,980 2,900 517 517 2,110 1,960 186,000 1,700 900 625 480 12,900 18,500 2,730 5,800 5,170 2,600 1,040 5,580 8,200 1,300 3,000 5,580 5,020 2,740 520 19,400 2,520 1,820 Regu- lated during flood1 Y N N N N N N N N N Y N N N N N N N N N N N N N N N N N Y N Y N N Recur- rence interval (years) - 25-50 25-50 25-50 10-25 5-10 20 20 20-25 - >50 30-50 30-50 20-30 50-75 >100 45 >100 >100 - >100 45 >100 25-50 >100 - >100 -- - - 25 15 Significant Floods, 1970 Through 1989, Connecticut 163 Table 8. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Connecticut Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 29) 01199200 01200500 01201510 01201890 01202700 01203000 01203100 01203510 01203700 01204000 01204800 01205600 01205700 01206900 01208013 01208100 01208420 01208700 01208873 01208900 01208925 01208950 01208990 01209600 01209700 Station name Guinea Brook at West Woods Road at Ellsworth, CT Housatonic River at Gaylordsville, CT Still River at Lanesville, CT Pond Brook near Hawleyville, CT Butternut Brook near Litchfield, CT Shepaug River near Roxbury, CT Jacks Brook near Roxbury Falls, CT Pootatuck River at Sandy Hook, CT Wood Creek near Bethlehem, CT Pomperaug River at Southbury, CT Copper Mill Brook near Monroe, CT West Branch Naugatuck River at Torrington, CT East Branch Naugatuck River at Torrington, CT Naugatuck River at Thomaston, CT Branch Brook near Thomaston, CT Hancock Brook near Terryville, CT Hop Brook near Naugatuck, CT Little River at Oxford, CT Rooster River at Fairfield, CT Patterson Brook near Easton, CT Mill River near Fairfield, CT Sasco Brook near Southport, CT Saugatuck River near Redding, CT Comstock Brook at North Wilton, CT Norwalk River at South Wilton, CT Total drainage area (mi2) 3.50 996 69.6 11.9 2.42 132 7.90 24.8 3.39 75.1 2.45 33.8 13.6 99.8 20.8 1.18 16.3 4.54 10.6 1.21 28.6 7.38 21.0 3.53 30.0 Period of record 1960-81 1901-14, 1924, 1928-95 1932-84 1963-76 1960-84 1931-84 1961-84 1966-84 1962-84 1933-95 1959-76 1955, 1957-95 1955, 1957-77, 1979-95 1955, 1960-83, 1985-95 1971-89 1960-81 1955, 1970-89 1960-84 1978-95 1960-84 1973-95 1960-95 1962-95 1960-75 1955, 1963-95 Water year 1974 1955 1956 1975 1975 1982 1973 1955 1975 1979 1982 1973 1975 1955 1973 1955 1955 1955 1960 1982 1975 1955 1982 1980 1982 1980 1972 1969 1975 1956 Stage (ft) 5.84 18.58 14.11 8.70 7.81 6.26 7.91 17.20 7.82 8.47 8.09 4.61 21.80 7.10 16.70 13.60 27.00 6.25 4.07 5.19 - 6.47 11.65 8.33 7.15 7.00 5.88 5.69 13.50 Dis- charge (ft3/*) 320 51,800 7,980 4,140 1,400 860 500 50,300 1,600 2,720 2,340 700 600 29,400 255 16,500 8,550 53,400 5,140 805 300 2,650 1,350 2,170 148 1,800 1,640 2,160 440 12,000 Significant floods during 1970-89 Date (month/ day/year) 12/21/73 3/07/79 5/31/84 9/27/75 2/02/73 12/21/73 9/26/75 6/05/82 9/27/75 9/26/75 1/25/79 2/02/73 9/26/75 9/27/75 4/04/87 2/02/73 4/04/87 12/01/85 9/29/75 4/08/87 6/08/82 4/07/87 9/26/75 6/04/84 6/05/82 4/09/80 6/05/82 4/10/80 6/19/72 1/21/79 3/22/80 9/26/75 4/10/80 Stage (ft) 5.84 12.23 15.22 8.70 6.14 6.85 7.81 6.26 11.18 7.82 8.47 4.61 15.68 15.92 7.10 8.65 6.39 5.61 6.29 4.07 3.93 5.19 3.79 6.47 11.65 8.33 7.15 7.00 6.87 5.43 5.69 6.27 Dis- charge (ft3/s) 320 20,800 34,000 4,140 930 1,150 1,400 860 10,000 1,600 2,720 700 600 9,500 9,780 255 3,180 1,730 3,810 3,820 805 766 300 582 1,350 2,170 148 1,800 1,640 1,580 1,580 440 2,890 Regu- lated during flood1 N Y Y N N N N N N N N N N N N N Y Y Y Y Y N Y N N N Y N N N N Y Recur- rence interval (years) 50-100 -- 25 5-10 5-10 10-25 30-50 15 20-30 - 20-30 20 20 20 10 ~ - -- .. 15 - >100 5-10 30-50 30-50 30-50 10 164 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 8. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Connecticut Continued Maximum stage and discharge for period of record through 1995 Station number (fig.29) 01211700 01212100 Station name East Branch Byram River at Round Hill, CT East Branch Byram River at Riversville, CT Total drainage area (mi2) 1.69 11.1 Period of record 1960-75 1963-84 Water year 1972 1972 Stage (ft) 4.19 7.62 Dis- charge (ft3/*) 245 1,700 Significant floods during 1970-89 Date (month/ day/year) 6/19/72 6/19/72 Stage (ft) 4.19 7.62 Dis- charge (ft3/s) 245 1,700 Regu- lated during flood1 N N Recur- rence interval (years) 10-15 20 1 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Connecticut 165 Delaware Hydroclimatology Located along the East Coast of the United States, Delaware has a climate described as modified conti- nental. The major sources of moisture for precipitation in the region are the Atlantic Ocean and the Gulf of Mexico (Paulson and others, 1991). During the sum- mer, a nearly stationary subtropical Atlantic high- pressure cell, called the Bermuda High, usually devel- ops over the eastern United States. The Bermuda High causes southerly winds to blow into Delaware bringing with them warm, humid, tropical maritime air. Occa- sionally, during a weakening of the Bermuda High, cooler, dryer air from Canada brings summertime relief from the humidity and heat. The airmasses are much more mobile in the winter, which brings many changes in the source of the weather systems. About one-third of the days from December to February are affected by cold, dry, polar air originating in Canada. Another one-third of the winter days are affected by milder airmasses originating from the ocean, and the remaining one-third of the winter is characterized by a transition period between the first two weather systems. The mean annual precipitation in Delaware ranges from about 41 in. in the central part of the State to about 46 in. along the southern Atlantic coastal margin and in topographically higher areas in the northern part of the State (Paulson and others, 1991). Annual precipitation is distributed evenly throughout the year with slightly higher monthly averages in July and August. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Delaware is dependent on drainage area; storage, which is the percentage of basin covered by lakes, ponds, and swamps; channel slope; percentage of basin covered by forest; and soil permeability (Jen- nings and others, 1994). Significant Floods Intense rain resulting from Tropical Storm Allison in July 1989 caused the most severe flooding during 1970-89. Thirty-three percent of the streamflow- gaging stations in the State recorded significant dis- charges. Maximum discharges of record were recorded at three gaging stations in Delaware. These maximum discharges were greater than the 100-year recurrence interval. The flood of February 1979 was caused by intense rain falling on compacted snow cover in southern Del- aware. Twenty-five percent of the streamflow-gaging stations recorded significant discharges. A smaller, but still significant flood occurred in June 1972. Twenty-two percent of the streamflow- gaging stations in the State recorded significant dis- charges. The flood was caused by torrential rains asso- ciated with Hurricane Agnes. The location of streamflow-gaging stations in Del- aware that had significant floods for 1970-89 is shown in figure 30 by station number. The specific data for each significant flood are listed in table 9. A signifi- cant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94^002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 166 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 ATLANTIC OCEAN 38°30' -, MARYLAND '" Base from U.S. Geological Survey digital data, 1:100,000,1994 0 5 10 15 MILES Universal Transverse Mercator projection |___| I |___jJ I Converted to Albers Equal-Area Conic projection ' 0 5 10 15 KILOMETERS Standard parallels 29°30" and 45°30', central meridian -96°00" EXPLANATION 0148455013 Streamflow-gaging station and number Figure 30. Location of streamf low-gaging stations with significant floods during 1970-89 for Delaware. Significant Floods, 1970 Through 1989, Delaware 167 Table 9. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Delaware [mi , square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; , not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 30) 01477800 01478000 01478040 01478500 01479000 01480000 01480100 01481200 01481450 01481500 01482310 01483200 01483290 01483700 01483720 01484100 01484270 01484500 01484550 01487000 01488500 01490470 01490490 Station name Shellpot Creek at Wilmington, DE Christina River at Coochs Bridge, DE Christina River near Bear, DE White Clay Creek above Newark, DE White Clay Creek near Newark, DE Red Clay Creek at Wooddale, DE Little Mill Creek at Elsmere, DE Brandywine Creek tributary near Centerville, DE Willow Run at Rockland, DE Brandywine Creek at Wilmington, DE Doll Run at Red Lion, DE Blackbird Creek at Blackbird, DE Paw Paw Branch tributary near Clayton, DE St. Jones River at Dover, DE Puncheon Branch at Dover, DE Beaverdam Branch at Houston, DE Beaverdam Creek near Milton, DE Stockley Branch at Stockley, DE Pepper Creek at Dagsboro, DE Nanticoke River near Bridgeville, DE Marshyhope Creek near Adamsville, DE Tappahanna Ditch near Hartly, DE Beachy Neidig Ditch near Willow Grove, DE Totai drainage area (mi2) 7.46 20.5 40.6 66.7 89.1 47.0 6.70 0.97 0.37 314 1.07 3.85 1.30 31.9 2.30 2.83 6.10 5.24 8.78 75.4 43.9 5.93 2.30 Period of record 1945-94 1943-94 1979-83, 1985-91 1953-59, 1963-80 1932-36, 1943-57, 1960-94 1943-94 1964-80, 1989 1966-75 1966-75 1947-94 1966-75 1952-53, 1955-94 1966-75 1958-94 1966-75 1958-94 1966-80 1943-94 1960-75 1935, 1943-69, 1971-94 1935, 1943-68, 1972-94 1952-73 1966-75 Water year 1989 1989 1989 1972 1989 1972 1975 1989 1971 1971 1972 1973 1972 1972 1960 1975 1960 1979 1969 1994 1972 1979 1935 1975 1935 1972 1961 1970 1967 Stage (ft) 13.76 13.12 14.34 13.77 16.55 17.74 10.32 8.80 9.35 12.70 15.49 8.51 5.04 8.43 9.45 6.39 5.55 4.84 4.88 5.52 6.39 10.31 11.00 13.19 14.50 7.42 8.57 4.81 8.46 Dis- charge (ft3/s) 8,040 5,530 7,500 10,200 11,600 9,080 5,010 4,400 405 620 29,000 360 712 760 1,900 520 176 63 25 303 545 3,020 3,700 127 76 67 Significant floods during 1970-89 Date (month/ day/year) 9/13/71 7/05/89 6/22/72 7/05/89 7/05/89 6/22/72 6/22/72 7/16/75 7/05/89 7/21/75 7/05/89 9/13/71 9/13/71 6/23/72 1/25/79 7/15/73 6/22/72 6/22/72 2/26/79 7/13/75 5/30/84 2/26/79 2/26/79 10/24/71 2/26/79 7/13/75 5/30/84 12/08/71 4/15/70 Stage (ft) 11.91 13.76 11.35 13.12 14.34 13.77 17.74 16.15 16.55 10.32 8.80 9.35 12.70 15.49 13.22 8.51 5.04 8.43 8.40 6.39 4.60 4.84 5.01 6.39 10.31 13.19 12.65 7.42 4.81 Regu- Dis- iated charge during (frVs) flood1 6,850 8,040 3,320 5,530 7,500 10,200 9,080 6,900 11,600 5,010 4,400 405 620 29,000 22,400 360 712 760 1,340 520 149 63 217 545 3,020 3,700 2,800 127 76 N N N N N N N N N N N N N N N N N N Y N N N N N N N N N N Recur- rence interval (years) 55 95 15 100 >100 70 40 15 100 30 55-60. 10 15-20 95 35 10 35-40 >100 20 35 15 15 20 10 75 30 15 10 15 Regulated during flood: N, no; Y, yes. 168 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Florida Hydroclimatology Located in the southeastern United States, Florida is a peninsula bordered on three sides by ocean. Florida receives tropical moisture throughout the majority of its area during most of the year. Polar continental air occasionally enters northern Florida dur- ing the winter. The summer months typically receive the most rainfall as a result of con- vective showers. Hurricanes are a typical threat in the summer and fall months in Florida. Florida also has the highest number of thunderstorms per year in the Nation. Florida receives a statewide mean annual precipitation of 53 in. The majority of the annual precipitation falls during the May through September period. Stalled frontal sys- tems in the winter months can cause excessive rainfall and flooding (Paulson and others, 1991). On the basis of regionalization procedures that relate flood characteristics to water- shed and climatic characteristics, the magnitude of maximum discharges in Florida is dependent on total drainage area of the basin, channel slope, and the percentage of the drainage area covered by lakes and ponds. For the urbanized areas, additional information such as percentage of drainage area that is impervious and area controlled by detention structures improves estimates of maximum discharges (Jennings and others, 1994). Significant Floods Significant flooding occurred in Florida in September 1988. Ten percent of the streamflow-gaging stations in the State recorded significant discharges during this time. In the summer of 1975, nearly 20 in. of rain fell during a 4-day period in the eastern part of the Florida Panhandle causing severe flooding. The Choctawhatchee and Escam- bia River Basins were most affected by this flood. In April 1973, intense rainfall during a period of 6 days caused flooding in the Suwannee and St. Marys River Basins. The location of streamflow-gaging stations in Florida that had significant floods for 1970-89 is shown in figure 31 by station number. The specific data for each significant flood are listed in table 10. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geo- logical Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geological Survey Water-Resources Investigations Report 94-^002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Florida 169 Index map 02375500 T Choctawhatchee River ALABAMA ATLANTIC 102231280 ' 0224652f^> OCEAN GULF OF MEXICO Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 0 20 60 MILES 0 20 40 60 KILOMETERS o CD (O 00 (O EXPLANATION 02324000 is Streamflow-gaging station and number Figure 31. Location of streamflow-gaging stations with significant floods during 1970-89 for Florida. 29° ATLANTIC OCEAN 02312640 ra02237000 02312500&LJ2312645 *>"" lm 02312180 Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 0 20 40 60 MILES 0 20 40 60 KILOMETERS EXPLANATION 02324000 EI Streamflow-gagmg station and number Figure 31. Location of streamflow-gaging stations with significant floods during 1970-89 for Florida Continued. Significant Floods, 1970 Through 1989, Florida 171 Table 10. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Florida [mi , square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 31) 02228500 02231000 02231230 02231250 02231280 02231342 02232500 02233001 02234990 02235200 02236350 02236700 02237000 02237293 02237700 02238000 02238500 02240000 02240902 02240920 02240950 Station name North Prong St. Marys River at Moniac, GA St. Marys River near Macclenny, FL Pigeon Creek at Boulogne, FL Little St. Marys River near Hilliard, FL Thomas Creek near Crawford, FL Fort Drum Creek at Sunshine Street Parkway near Ft. Drum, FL St. Johns River near Christmas, FL Econlockhatchee River at Magnolia Ranch near Bithlo, FL Little Wekiva River near Altamonte Springs, FL Blackwater Creek near Cassia, FL Green Swamp Run near Eva, FL Little Creek near Clermont, FL Palatlakaha River near Mascotte, FL Palatlakaha River at structure M-l near Okahumpka, FL Apopka-Beauclair Canal near Astatula, FL Haines Creek at Lisbon, FL Ocklawaha River at Moss Bluff, FL Ocklawaha River near Conner, FL Prairie Creek near Gainesville, FL Fairfield Sink Drain at Fairfield, FL Hogtown Creek near Gainesville, FL Total drainage area (mi2) 160 700 9.36 19.8 29.9 52.6 1,539 32.9 90.7 126 43.0 14.7 182 221 184 648 879 1,200 114 1.70 18.5 Period of record 1921-23, 1927-30, 1932-34, 1951-89, 1992-94 1927-89, 1991-93 1964-«6, 1970-76 1961-89 1965-89, 1991 1978-94 1935-94 1973-79, 1981-94 1972-79, 1983-94 1962-94 1980-94 1979-94 1946-55, 1964-75 1971-75, 1977-93 1959-83, 1985-93 1926, 1942-80, 1986-94 1944-55, 1960, 1966, 1968-88, 1994 1931-46, 1964-88, 1994 1979-90 1966-89 1959-78 Water year 1973 1947 1964 1970 1973 1973 1973 1979 1954 1960 1982 1987 1984 1994 1968 1989 1988 1979 1946 1954 1987 1977 1960 1969 1987 1926 1983 1960 1982 1933 1988 1988 1970 1964 Stage (ft) 22.98 22.29 23.25 23.98 25.91 16.49 21.04 38.35 10.59 10.81 62.58 63.42 27.34 28.93 9.93 4.21 5.06 9.82 96.60 96.66 .. 71.84 - 68.01 65.30 - 50.83 8.46 9.14 7.69 23.30 11.29 12.23 Dis- charge (ft3/s) 11,600 28,100 26,000 682 -- 3,000 4,020 1,410 11,700 11,000 474 370 592 354 749 912 63 293 458 372 451 9 754 494 1,490- 2,340 1,630 4,430 3,700 549 292 1,600 1,210 Significant floods during 1970-89 Date (month/ Stage day/year) (ft) 4/05/73 22.98 4/05/73 22.86 3/29/70 23.98 4/04/73 16.49 4/04/73 21.04 9/04/79 38.35 10/01/79 9.36 6/21/82 62.58 7/22/84 27.34 9/29/79 9.45 2/12/88 4.21 9/28/79 9.82 3/03/70 10/04/79 4/02/87 4/01/87 3/18/86 3/30/87 3/10/88 2/20/83 3/20/86 4/09/82 8.46 9/1 1/88 7.69 9/08/88 23.30 2/03/70 11.29 Dis- charge («*/s) 11,600 28,000 682 3,000 4,020 1,410 7,070 474 592 605 912 293 374 416 451 589 1,220 1,490 1,470 2,340 2,120 4,430 549 292 1,600 Regu- lated during flood1 N N N N N N N N N N N N Y N Y N N Y Y Y Y N N N N Recur- rence interval (years) >100 30-35 2-5 50-60 25-50 10-20 5-10 2-5 15-25 10-20 50-100 10-25 5-10 5-10 5-10 5-10 25-50 50-60 50-60 50-100 40-50 45-55 10-20 50-100 10-25 172 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 10. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Florida Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 31) 02240954 02240984 02241900 02243000 02243530 02243960 02244320 02244473 02245050 02245140 02245255 02245500 02246460 02246497 02246522 02246828 02246832 02247200 02247480 02247510 02248000 02253500 02257800 02259200 02263800 Station name Hogtown Creek near Arredondo, FL Sweetwater Branch tributary at Gainesville, FL Lochloosa Creek at Grove Park, FL Orange Creek at Orange Springs, FL Bruntbridge Brook at Kenwood, FL Ocklawaha River at Rodman Dam near Orange Springs, FL Middle Haw Creek near Korona, FL Rice Creek near Springside, FL Etonia Creek at Bardin, FL Simms Creek near Bardin, FL Deep Creek near Hastings, FL South Fork Black Creek near Penney Farms, FL Williamson Creek at Cedar Hills, FL McCoy Creek at Jacksonville, FL Red Bay Branch tributary at Jacksonville, FL Pablo Creek at Jacksonville, FL Cedar Swamp Creek near Jacksonville, FL Fish Swamp outlet near Summer Haven, FL Tiger Bay Canal near Daytona Beach, FL Tomoka River near Holly Hill, FL Spruce Creek near Samsula, FL South Canal near Vero Beach, FL Harney Pond Canal at S- 7 1 near Lakeport, FL Indian Prairie Canal at S- 72 near Okeechobee, FL Shingle Creek at airport near Kissimmee, FL Total drainage area (mi2) 41.2 0.79 37.4 1,119 4.63 2,747 78.3 43.2 219 47.3 20.7 134 0.92 3.51 0.57 25.8 3.40 4.64 29.0 76.8 33.4 -- -- -- 89.2 Period of record 1972-88 1972-86 1958-82 1942-52, 1956-71, 1976-89, 1991, 1994 1971-86 1969-89, 1994 1976-94 1974-89, 1991 1974-89 1974-89, 1991 1975-89, 1991 1940-89, 1991 1971-89 1976-86, 1988 1975-86 1974-89, 1991 1974-89, 1991 1962-89 1978-94 1965-94 1952-94 1951-94 1963-78, 1984-89 1963-78, 1984-89 1959-94 Water year 1988 1985 1978 1942 1982 1970 1982 1979 1978 1979 1980 1974 1984 1982 1945 1989 1979 1984 1982 1989 1989 1985 1979 1969 1964 1954 1963 1964 1970 1970 1960 Stage (ft) 60.53 10.22 9.47 10.60 8.33 9.46 9.64 12.72 9.80 7.74 13.78 15.47 7.78 8.31 26.33 13.16 23.17 23.61 12.88 8.26 6.73 5.75 32.94 12.92 14.05 15.49 10.97 10.98 -- -- 11.00 Dis- charge (ft3/s) 1,040 596 1,530 2,400 270 9,560 8,610 1,900 2,990 1,210 1,490 1,410 308 297 13,900 256 1,010 862 595 1,250 437 687 263 2,100 1,610 798 1,930 1,280 4,670 2,130 3,320 Significant floods during 1970-89 Date (month/ day/year) 9/07/88 4/14/85 8/18/78 2/03/70 6/19/82 2/05/70 9/30/79 8/01/78 5/12/79 12/07/79 9/28/84 2/03/70 9/29/89 6/15/79 9/05/82 9/25/89 9/24/89 9/01/85 3/07/79 6/05/76 9/04/79 9/04/79 3/27/70 10/03/69 3/31/87 Stage (ft) 60.53 10.22 9.47 8.69 8.33 9.46 12.72 9.80 7.74 13.78 7.78 22.71 13.16 23.17 12.88 8.26 6.73 5.75 32.94 12.50 12.43 10.75 -- -- 9.75 Dis- charge (tf/s) 1,040 596 1,530 1,410 270 9,560 1,900 2,990 1,210 1,490 308 9,450 256 1,010 595 1,250 437 687 263 1,750 1,070 1,860 4,670 2,130 1,680 Regu- lated during flood1 N N N N N Y N N N N N N N N N N N N N N N Y Y Y N Recur- rence interval (years) 15-25 25-50 10-25 10-20 10-25 10-20 10-20 15-25 15-25 5-10 5-15 15-20 30-40 40-50 10-20 30-40 30-40 15-25 5-10 10-20 15-25 25-50 25-50 >100 15-20 Significant Floods, 1970 Through 1989, Florida 173 Table 10. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Florida Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 31) 02264100 02264495 02266200 02266300 02266500 02268903 02269720 02270500 02273000 02273300 02274000 02274495 02291300 02295420 02296223 02296260 02296500 02297251 02298123 02299160 02299950 02300100 02300500 02300530 02301300 02301350 Station name Bonnet Creek near Vineland, FL Shingle Creek at Campbell, FL Whittenhorse Creek near Vineland, FL Reedy Creek near Vineland, FL Reedy Creek near Loughman, FL Kissimmee River at S-65 near Lake Wales, FL Morgan Hole Creek near Avon Park, FL Arbuckle Creek near De Soto City, FL Kissimmee River at S-65E near Okeechobee, FL Canal 41 A at S-84 near Okeechobee, FL Taylor Creek near Basinger, FL Williamson Ditch at S-7 near Okeechobee, FL Golden Gate Canal at Naples, FL Payne Creek near Bowling Green, FL Little Charley Bowlegs Creek near Sebring, FL Charlie Creek near Crewsville, FL Charlie Creek near Gardner, FL Horse Creek near Limestone, FL Prairie Creek near Fort Ogden, FL Deer Prairie Slough near North Port Charlotte, FL Manatee River near Myakka Head, FL Little Manatee River near Ft. Lonesome, FL Little Manatee River near Wimauma, FL Cypress Creek near Wimauma, FL South Prong Alafia River near Lithia, FL Little Alafia River near Hopewell, FL Total drainage area (mi2) 56.1 180 12.4 75.0 110 1,607 13.9 379 - - 15.7 35.4 - 121 41.9 142 330 128 233 - 65.3 31.4 149 8.10 107 8.65 Period of record 1967-94 1969-94 1967-94 1960, 1962-94 1940-59, 1969-78, 1980-83, 1986-94 1970-78, 1982-94 1971-75, 1978-93 1940-94 1928-62, 1965-94 1965-78, 1984-89 1956-89 1965-89 1965-75 1964-68, 1980-94 1953-83 1981-93 1950-94 1981-88, 1990-93 1964-68, 1978-94 1981-92 1967-94 1963-94 1939-94 1981-91 1963-94 1966-79 Water year 1989 1967 1987 1987 1960 1969 1988 1970 1974 1948 1960 1970 1977 1974 1966 1957 1970 1971 1982 1965 1960 1982 1960 1982 1982 1980 1988 1988 1979 1988 1960 1988 1988 1967 1988 1971 1979 Stage (ft) - 77.75 60.78 94.82 14.90 4.25 -- 7.37 8.71 9.45 - 21.40 - 15.99 11.98 23.48 7.14 17.78 17.88 17.61 20.72 18.77 58.58 13.42 14.19 19.37 17.85 11.73 12.24 19.76 20.14 14.96 17.88 17.93 14.30 16.70 Dis- charge (ft3/s) 1,230 432 2,070 62 1,910 790 11,100 8,970 1,400 7,380 4,900 25,800 4,130 5,910 4,470 2,540 900 3,460 3,170 2,190 874 4,000 8,160 2,700 4,800 4,280 971 5,410 3,100 2,640 14,000 12,600 754 2,600 2,400 974 722 Significant floods during 1970-89 Date (month/ day/year) 11/23/88 4/01/87 3/31/87 12/07/87 4/02/87 2/23/88 6/27/74 8/01/78 7/04/74 8/29/74 8/01/78 9/20/85 3/27/70 9/14/71 6/18/82 6/21/82 6/21/82 6/21/82 6/18/82 6/25/82 9/09/88 9/07/88 9/22/79 9/06/81 9/08/88 9/07/88 9/07/88 9/12/71 Stage (ft) - 60.78 94.82 13.52 3.95 7.37 6.92 - - 10.86 23.48 7.14 17.78 17.12 20.72 17.76 58.58 13.42 19.37 17.85 11.73 11.31 20.14 14.96 17.93 14.30 Dis- charge (ft3/s) 1,230 2,070 62 1,430 779 11,100 1,400 2,920 16,000 5,910 1,160 564 900 3,460 3,170 842 4,000 7,910 2,700 4,800 971 5,410 3,100 2,650 12,600 754 2,400 974 Regu- lated during flood1 N N N N Y Y N N Y Y Y N Y N N N N N N N N N N N N N N N Recur- rence interval (years) 20-30 50-60 10-25 10-20 50-100 >100 15-25 2-5 10-20 5-15 5-10 2-5 10-25 25-50 10-20 10-20 10-20 15-25 10-25 15-25 5-15 >100 25-50 50-100 50-55 15-25 10-15 10-20 174 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 10. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Florida Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 31) 02301900 02301990 02302500 02303100 02303350 02303358 02303400 02303420 02306289 02306500 02307000 02307200 02307323 02307359 02307697 02308889 02309848 02309980 02310147 02310280 02310300 02310947 02311000 02311500 02312000 Total drainage Station name Fox Branch near Socrum, FL Hillsborough River above Crystal Springs near Zephyrhills, FL Blackwater Creek near Knights, FL New River near Zephyrhills, FL Trout Creek near Sulphur Springs, FL Cypress Creek near Darby, FL Cypress Creek near San Antonio, FL Cypress Creek at Worthington Gardens, FL Lake Magdalene outlet near Lutz, FL Sweet water Creek near Sulphur Springs, FL Rocky Creek near Sulphur Springs, FL Brooker Creek at Van Dyke Road near Citrus Park, FL Brooker Creek near Lake Fern, FL Brooker Creek near Tarpon Springs, FL Alligator Creek at Safety Harbor, FL Seminole Lake outlet near Largo, FL South Branch Anclote River near Odessa, FL Anclote River near Odessa, FL Hollin Creek near Tarpon Springs, FL Pithlachascotee River near Fivay Junction, FL Pithlachascotee River near New Port Richey, FL Withlacoochee River near Cumpressco, FL Withlacooche- Hillsborough overflow canal near Richland, FL Withlacoochee River near Dade City, FL Withlacoochee River at Trilby, FL area (mi2) 9.50 82.0 110 15.0 23.0 7.11 56.0 117 2.20 7.43 35.0 5.01 17.0 30.0 9.00 14.0 17.1 68.1 8.31 150 180 280 390 570 Period of record 1965-94 1984-94 1951-94 1965-75 1974-94 1970-86 1963-94 1964-67, 1970-94 1971-90 1952-94 1953-92, 1994 1981-94 1970-94 1950-94 1950-58, 1961-74 1950-73 1970-94 1981, 1984-94 1982-83, 1985-88, 1990, 1992-94 1984-94 1963-94 1968-94 1960-79, 1981-94 1984-94 1931-94 Water year 1988 1978 1988 1960 1988 1971 1974 1974 1979 1987 1987 1979 1960 1979 1960 1988 1988 1960 1974 1950 1971 1950 1988 1988 1988 1988 1988 1987 1960 1988 1934 I960 Stage (ft) 7.67 8.22 56.44 9.70 80.48 8.48 9.50 42.85 16.13 76.05 12.62 6.25 8.93 9.57 17.03 21.53 6.09 13.32 7.52 8.15 7.17 7.44 5.01 30.98 15.90 54.37 24.67 14.03 6.87 77.08 - 19.38 Dis- charge (ft3/s) 886 569 2,050 5,400 3,250 261 255 1,540 732 1,100 1,450 111 438 211 2,840 208 472 1,600 1,030 490 642 539 305 2,800 370 294 1,480 2,260 1,880 3,020 8,840 6,920 Significant floods during 1970-89 Date (month/ day/year) 9/07/88 9/08/88 9/07/88 9/12/71 6/27/74 9/30/79 6/27/74 3/31/87 4/03/87 9/24/79 5/08/79 5/09/79 9/09/88 9/09/88 9/09/88 6/26/74 8/16/71 9/09/88 9/09/88 9/09/88 9/09/88 9/09/88 4/01/87 9/09/88 9/10/88 4/06/87 Stage (ft) 7.67 56.44 80.48 8.48 42.85 16.13 5.23 76.05 12.62 6.25 9.57 10.00 21.53 6.09 13.01 7.52 7.17 5.01 30.98 15.90 54.37 24.67 14.03 5.88 77.08 15.52 Dis- charge (frVs) 886 2,050 3,250 261 1,540 732 717 1,100 1,450 111 211 1,860 208 472 1,350 1,030 642 305 2,800 370 294 1,480 2,260 1,020 3,020 3,290 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 25-35 5-15 35-45 2-5 15-25 5-10 10-25 25-50 10-20 15-25 50-100 15-25 5-15 15-25 45-55 50-60 15-25 15-25 15-25 45-55 15-25 25-50 15-25 15-25 15-25 10-15 Significant Floods, 1970 Through 1989, Florida 175 Table 10. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Florida Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 31) 02312180 02312500 02312600 02312635 02312640 02312645 02312667 02312690 02312700 02312720 02313100 02313230 02313250 02315000 02315200 02315500 02315520 02315550 02317620 02319000 02319500 02320500 02320700 02322016 02323500 Station name Little Withlacoochee River near Tarrytown, FL Withlacoochee River at Croom, FL Withlacoochee River near Floral City, FL Jumper Creek Canal near Sumterville, FL Jumper Creek Canal near Bushnell, FL Jumper Creek Canal near Wahoo, FL Shady Brook near Sumterville, FL Chitty Chatty Creek near Wildwood, FL Outlet River at Panacoochee Retreats, FL Withlacoochee River at Wysong Dam at Carlson, FL Rainbow Springs near Dunnellon, FL Withlacoochee River at Inglis Dam near Dunnellon, FL Withlacoochee River bypass channel near Inglis, FL Suwannee River near Benton, FL Deep Creek near Suwannee Valley, FL Suwannee River at White Springs, FL Swift Creek at Facil, FL Suwannee River at Suwannee Springs, FL Alapaha River near Jennings, FL Withlacoochee River near Pinetta, FL Suwannee River at Ellaville, FL Suwannee River at Branford, FL Santa Fe River near Graham, FL Blues Creek near Gainsville, FL Suwannee River near Wilcox, FL Total drainage area (mi2) 85.0 810 995 28.6 40.0 50.6 8.00 38.0 420 1,520 -- 2,020 2,090 88.6 2,430 65.3 2,630 1,680 2,120 6,970 7,880 94.9 -- 9,640 Period of record 1967-94 1934, 1940-94 1984-94 1977, 1980-91 1964-94 1980-91 1982-92, 1994 1979-92 1963-94 1966-94 1966-78, 1982-94 1970-94 1971-78, 1982-92, 1994 1973, 1976-94 1976-81, 1991-94 1907-08, 1928-94 1972, 1976-88 1961-89, 1991-94 1977-87 1928, 1932-94 1928-94 1928, 1932-94 1958-94 1985-94 1931, 1942, 1944-94 Water year 1987 1979 1960 1934 1987 1991 1987 1982 1987 1987 1991 1983 1987 1983 1970 1980 1971 1988 1966 1980 1988 1973 1980 1973 1984 1972 1973 1986 1948 1948 1948 1964 1985 1948 Stage (ft) 6.51 6.58 13.78 15.20 42.58 8.55 5.83 6.69 47.74 50.76 7.91 42.49 39.72 -- -- " 102.80 15.08 40.02 85.40 8.54 78.91 32.10 38.64 40.88 34.07 14.97 6.15 22.32 Dis- charge (ftS/s) 1,210 1,130 8,650 4,480 2,480 147 473 169 235 67 340 220 784 520 3,920 1,580 1,060 1,040 4,500 1,840 27,700 961 38,100 26,200 1,180 30,100 18,800 79,400 95,300 83,900 2,360 324 84,700 Significant floods during 1970-89 Date (month/ day/year) 3/31/87 10/03/79 4/1 1/87 4/02/87 2/03/70 9/10/82 3/31/87 4/23/83 3/31/87 6/27/82 10/06/82 10/11/79 9/19/88 10/12/79 10/01/87 4/06/73 3/1 1/80 4/10/73 4/10/84 6/27/72 4/12/73 2/17/86 2/15/86 4/13/73 4/18/73 2/04/70 8/31/85 4/21/73 4/16/84 Stage (ft) 6.51 11.17 -- 8.55 6.06 5.83 -- 50.76 7.91 -- -- " 102.80 15.08 40.02 85.40 8.54 78.91 32.10 38.20 37.75 30.76 14.51 6.15 18.58 17.06 Dis- charge (ft^s) 1,210 4,780 4,480 147 227 473 235 340 220 716 784 3,920 1,060 4,500 1,840 27,700 961 38,100 26,200 1,180 30,100 18,800 47,600 77,100 54,700 1,890 324 55,100 48,400 Regu- lated during flood1 N N N N N N N N N N N N N Y Y N N N N N N N N N N N N N N Recur- rence interval (years) 20-30 10-20 10-20 25-50 10-20 50-100 10-20 10-25 10-25 15-25 25-35 15-25 10-25 25-35 15-25 >100 20-30 >100 25-30 20-30 50-60 10-20 40-50 70-80 40-50 15-25 10-20 40-50 25-35 176 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 10. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Florida Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 31) 02324000 02324400 02324500 02326000 02326250 02326261 02326300 02326500 02326512 02326598 02326800 02326838 02326900 02327012 02327014 02327100 02329000 02329180 02329181 02329490 02329877 02330100 02358000 02358700 Station name Steinhatchee River near Cross City, FL Fenholloway River near Foley, FL Fenholloway River at Foley, FL Econfina River near Perry, FL Aucilla River near Aucilla, FL Little Aucilla River near Cherry Lake, FL Little Aucilla River near Greenville, FL Aucilla River at Lament, FL Aucilla River near Scanlon, FL Caney Creek near Monticello, FL Copeland sink drain at Lloyd, FL Northeast drainage ditch at Miccosukee Road at Tallahassee, FL St. Marks River near Newport, FL West drainage ditch at Roberts Avenue at Tallahassee, FL St. Augustine Brook at Warmish Way at Tallahassee, FL Sopchoppy River near Sopchoppy, FL Ochlockonee River near Havana, FL Megginnis Arm tributary at Tallahassee, FL Mall drainage ditch at Boone Boulevard at Tallahassee, FL Willacoochee Creek near Quincy, FL Ocklawaha Creek near Wetumpka, FL Telogia Creek near Bristol, FL Apalachicola River at Chattahoochee, FL Apalachicola River near Blountstown, FL Total drainage area (mi2) 350 60.0 120 198 345 13.9 90.7 747 805 2.54 285 10.5 535 20.9 2.18 102 1,140 1.46 0.26 64.9 28.8 126 17,200 17,600 Period of record 1951-94 1956-94 1947-80, 1982-92, 1994 1951-94 1965-86 1970-86 1963-82 1951-79, 1984-92 1957, 1973, 1977-94 1969-81 1965-82 1979-89 1957-76, 1978-93 1979-83, 1985-89 1980-89 1961-93 1926-93 1972-82 1979-88 1975-77, 1979-90 1975-77, 1979-90 1903, 1951-71, 1975-79, 1981-93 1920-93 1958-93 Water year 1964 1964 1964 1957 1979 1973 1973 1973 1973 1984 1973 1974 1973 1984 1973 1983 1980 1975 1948 1982 1972 1986 1984 1984 1969 1929 1990 1990 1978 Stage (ft) 18.90 15.21 18.52 12.78 18.60 80.79 8.70 7.06 16.57 20.47 23.50 11.37 77.47 7.65 11.81 9.87 9.48 34.47 35.08 7.70 7.80 10.04 9.26 6.86 16.65 34.70 74.04 24.75 Dis- charge (ft3/s) 17,600 3,210 4,810 2,540 450 4,030 1,020 1,950 11,500 7,460 2,760 910 3,070 805 4,750 1,150 1,210 5,260 55,900 480 230 216 6,850 2,930 20,600 293,000 181,000 185,000 172,000 Significant floods during 1970-89 Date (month/ day/year) 8/15/70 8/14/70 8/15/70 4/07/73 4/07/73 4/05/73 4/05/73 4/08/73 4/08/84 9/06/74 4/04/73 3/06/84 4/07/73 3/06/83 6/17/80 7/31/75 3/09/84 2/13/86 7/05/82 8/06/86 3/06/84 3/06/84 3/07/84 1/28/78 1/29/78 Stage (ft) 16.78 14.37 17.93 12.37 80.79 8.70 7.06 16.57 20.47 11.37 77.47 7.65 11.81 9.87 9.48 34.47 32.29 33.13 7.70 10.04 9.26 6.86 12.86 32.14 24.75 Dis- charge (ft3/s) 7,140 2,010 3,500 2,210 4,030 1,020 1,950 11,500 7,460 910 3,070 805 4,750 1,150 1,210 5,260 28,400 33,100 480 216 6,850 2,930 10,900 174,000 172,000 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N Y N Recur- rence interval (years) 15-25 15-25 25-35 15-25 10-25 20-30 25-50 >100 20-30 15-25 25-50 5-15 25-50 10-25 5-15 25-50 20-25 30-35 25-50 5-15 15-25 15-25 15-25 10-15 15-20 Significant Floods, 1970 Through 1989, Florida 177 Table 10. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Florida Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 31) 02358998 02359000 02359300 02359350 02359450 02359500 02359550 02365237 02365435 02365700 02366000 02366500 02366859 02367000 02367242 02367310 02368000 02368300 02368500 02369000 02369500 02370000 02370500 02370700 Station name Holliman Branch near Altha, FL Chipola River near Altha, FL Sandy Creek near Panama City, FL Econfina Creek near Compass Lake, FL Econfina Creek near Fountain, FL Econfina Creek near Bennett, FL Bear Creek near Youngstown, FL Fowler Branch near Leonia, FL Wrights Creek near Bonifay, FL Sandy Creek at Ponce de Leon, FL Holmes Creek at Vernon, FL Choctawhatchee River near Bruce, FL Pate Branch near Freeport, FL Alaqua Creek near Defuniak Springs, FL Little Rocky Creek near Niceville, FL Juniper Creek at State Hwy 85 near Niceville, FL Yellow River at Milligan, FL Baggett Creek near Milligan, FL Shoal River near Mossy Head, FL Shoal River near Crestview, FL Yellow River near Holt, FL Blackwater River near Baker, FL Big Coldwater Creek near Milton, FL Pond Creek near Milton, FL Total drainage area (mi2) 2.04 781 25.0 40.5 70.2 122 67.2 5.09 72.4 116 386 4,384 1.87 65.6 3.85 27.6 624 7.80 123 ' 474 1,210 205 237 58.7 Period of record 1969-86 1913, 1922-27, 1930-31, 1944-93 1961-82 1962-78, 1982 1962-78 1926, 1936-93 1962-85 1969-86, 1989 1981-90 1961-90 1951-79, 1986-90 1929, 1931-83, 1985-93 1969-86, 1989 1952-77 1969-82 1966-75, 1977-93 1929, 1939-93 1965-82 1952-78, 1989 1939-93 1934-41, 1965-70, 1975, 1978-79, 1981 1951-92 1939-79, 1981-91 1958-78, 1989 Water year 1972 1926 1975 1973 1973 1991 1926 1975 1984 1980 1989 1989 1989 1960 1929 1978 1975 1982 1975 1929 1979 1989 1975 1975 1970 1990 1970 Stage (ft) 10.57 33.55 19.46 12.72 14.44 14.37 15.00 16.29 16.50 10.06 16.76 16.82 22.95 23.35 25.00 11.07 21.35 7.05 9.56 26.20 63.30 24.73 15.58 34.18 25.61 22.98 12.97 Dis- charge (ft3/s) 1,370 25,000 3,370 1,470 1,550 5,850 -- 7,220 6,270 869 6,770 15,900 13,100 10,900 220,000 649 17,500 192 1,110 137,000 672 12,100 25,200 35,600 26,200 36,900 4,580 Significant floods during 1970-89 Date (month/ day/year) 5/08/72 4/16/75 7/31/75 2/02/73 2/02/73 6/10/89 7/31/75 3/30/80 6/09/89 7/31/75 6/09/89 6/1 1/89 4/15/75 7/27/78 7/30/75 2/03/82 9/23/75 4/12/75 3/03/79 6/09/89 8/01/75 6/10/89 8/03/75 6/04/70 6/04/70 8/01/75 6/03/70 Stage (ft) 10.57 29.43 19.46 12.72 14.44 11.50 16.29 10.06 16.76 15.23 16.82 22.95 17.54 11.07 21.35 7.05 9.56 17.71 63.30 24.73 15.58 14.24 34.18 25.61 21.41 20.56 12.97 Dis- charge (ftVs) 1,370 13,800 3,370 1,470 1,550 2,880 7,220 869 6,770 11,200 15,900 13,100 76,800 649 17,500 192 1,110 38,600 672 12,100 25,200 20,600 35,600 26,200 32,000 29,000 4,580 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 45-55 15-20 25-50 10-25 10-25 25-30 20-30 10-25 10-20 10-25 50-100 40-50 35^5 25-50 >100 15-25 50-100 50-60 5-15 25-35 50-60 15-25 15-25 35^5 60-70 15-25 15-25 178 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 10. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Florida Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 31) 02370750 02375500 02376079 02376300 30254908415 2900 Station name Hurricane Branch near Milton, FL Escambia River near Century, FL Carpenter Creek at Pensacola, FL Brushy Creek near Walnut Hill, FL East drainage ditch at Apakjn Nene at Tallahassee, FL Total drainage area (mi2) 2.95 3,817 6.02 49.0 0.21 Period of record 1961-82, 1989 1929, 1935-93 1972-84 1958-91 1979-89 Water year 1989 1929 1979 1962 1983 Stage (ft) 6.10 37.80 13.80 14.96 6.46 Dis- charge (ft3/s) 2,950 315,000 3,150 9,680 145 Significant floods during 1970-89 Date (month/ day/year) 6/08/89 4/12/75 3/03/79 9/08/74 3/06/83 Stage (ft) 6.10 23.32 13.80 14.86 6.46 Dis- charge (ft3/s) 2,950 92,300 3,150 9,380 145 Regu- lated during flood1 N N N N N Recur- rence interval (years) 20-30 15-25 10-25 15-25 5-15 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Florida 179 Georgia Hydroclimatology Georgia is located in the southeastern United States and is bordered on the southeast by the Atlantic Ocean. The Atlantic Ocean and the Gulf of Mexico are the primary sources of moisture for the State. Geor- gia's climate is also affected by the distance from the ocean and elevation, as northern Georgia is in part of the Appalachian Mountains. Annual precipitation, which varies greatly from year to year, averages about 44 in. in the east-central part of the State and about 76 in. in the highest mountains in extreme northeast Georgia (Paulson and others, 1991). The summers are characterized by warm, humid maritime airmasses that are pushed inland by a nearly stationary subtropical Atlantic high-pressure cell called the Bermuda High. Airmass and squall-line type thunderstorms can create localized torrential downpours and flash flooding. Late summer and fall brings the threat of Atlantic Ocean and Gulf of Mexico hurricanes and associated coastal flooding from storm surges and excessive rainfall. Winters in Georgia typically include frontal systems moving through or stalling out in the State. Significant flooding can occur anytime during the year. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Georgia is dependent upon physio- graphic region and the drainage area. The regions include the mountainous area of the north, the rolling piedmont to the southeast, and the fall-line region, which bisects the State and is a 10- to 50-mi wide band between the piedmont and the low-relief coastal plain. For urban areas, the percentage area of impervious surface in the drainage basin is an added factor. Significant Floods The deadliest flood in Georgia from 1970 through 1989 occurred in November 1977 when excessive rains in the Toccoa Creek Basin in northeastern Geor- gia resulted in the failure of the Kelley Barnes Dam. The resulting flash flood killed 39 persons and caused $2.8 million in damages (Paulson and others, 1991). Significant flooding also occurred statewide in the spring of 1973, when about 13 percent of the State's streamflow-gaging stations recorded significant dis- charges. In March 1976, about 7 percent of the gaging stations statewide recorded 20-year or greater recur- rence-interval discharges. During 1979, widespread flooding occurred during March and April predomi- nately in eight counties in the northern part of the State. Recurrence intervals were generally in the 10- to 20-year range, with some smaller streams having 50-year recurrence-interval flooding. The location of streamflow-gaging stations in Georgia that had significant floods for 1970-89 is shown in figure 32 by station number. The specific data for each significant flood are listed in table 11. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. Reference Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 180 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 ^.TENNESSEE 8£o3566660 Kelley Barnes Dam fbccoa Creek 83° ATLANTIC OCEAN Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 60 MILES EXPLANATION 0 20 40 60 KILOMETERS Appalachian Mountains Piedmont Coastal plain 07365900 is Streamflow-gaging station and number Figure 32. Location of streamflow-gaging stations with significant floods during 1970-89 for Georgia. Significant Floods, 1970 Through 1989, Georgia 181 Inset A 33°55' 50' 33°45' 84°25' 20' 84°15' 0 Base from U.S. Geological Survey digital data, 1:100,000,1994 Universal Transverse Mercator projection Zone 16 Converted to Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 4 MILES 0123 4 KILOMETERS EXPLANATION 02203950K! Streamflow-gaging station and number Figure 32. Location of streamflow-gaging stations with significant floods during 1970-89 for Georgia Continued. 182 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 11. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02178400 02182000 02189020 02191000 02191200 02191280 02191910 02191930 02191960 02191970 02192300 02193500 02196570 02196725 02197600 02198500 02200400 02201160 02201800 02202300 02202605 02202865 Station name Tallulah River near Clayton, GA Panther Creek near Toccoa, GA Indian Creek near Caraesville, GA North Fork Broad River near Carnesville, GA Hudson River at Homer, GA Mill Shoal Creek near Royston, GA Trouble Creek at Lexington, GA Buffalo Creek near Lexington, GA Macks Creek near Lexington, GA Little Macks Creek near Lexington, GA Hog Fork Fishing Creek tributary near Tignall, GA Little River near Washington, GA Raes Creek tributary number 2 at Skinner Mill Road at Augusta, GA Gates Creek at White Road at Augusta, GA Brushy Creek near Wrens, GA Savannah River near Clyo, GA Rocky Comfort Creek at State Route 88 near Grange, GA Boggy Gut Creek at U.S. Route 1 near Wadley, GA Richardson Creek near Millen, GA Mill Creek near Statesboro, GA Mill Creek at State Route 1 19 near Pembroke, GA Canoochee River at State Total drainage area (mi2) 56.5 32.5 7.63 119 60.9 0.32 2.70 5.60 3.45 1.73 0.10 291 0.66 1.44 28.0 9,850 188 7.05 43.0 39.0 5.39 202 Period of record 1965-95 1927-76, 1978 1964-76 1943-44, 1951, 1955-69, 1976 1951-79 1964-87 1959-75, 1978 1964-95 1959-75, 1978 1959-85 1959-87, 1990 1950-71, 1990-95 1979-88 1979-89 1959-95 1925-95 1979-95 1965-74 1963-83, 1991 1963-74 1979-95 1970-86 Water year 1973 1949 1976 1976 1976 1982 1971 1982 1978 1978 1971 1971 1984 1986 1986 1983 1991 1930 1980 1970 1980 1970 1994 1980 Stage (ft) 12.00 18.00 9.94 14.80 14.73 5.96 10.12 9.47 13.16 10.49 9.41 27.93 7.26 9.98 5.59 5.88 14.02 29.70 14.82 10.04 6.04 4.86 5.98 11.46 Dis- charge (tf/s) 8,500 15,100 3,150 11,800 7,050 232 569 1,650 1,370 853 116 15,500 111 201 11,400 270,000 4,020 1,800 2,400 1,000 657 4,220 Significant floods during 1970-89 Date (month/ day/year) 5/28/73 3/13/75 5/29/76 5/29/76 5/29/76 1/04/82 3/03/71 4/26/82 4/09/83 11/05/77 11/05/77 9/01/71 4/02/75 3/03/71 5/03/84 10/03/88 3/03/71 4/02/80 3/14/80 8/08/70 3/13/80 3/31/70 2/1 1/86 3/15/80 Stage (ft) 12.00 16.73 9.94 14.80 14.73 5.96 10.12 9.47 8.82 13.16 10.49 9.41 9.28 27.93 7.26 5.59 8.03 18.40 14.82 10.04 6.04 4.86 4.16 11.46 Dis- charge (frVs) 8,500 12,200 3,150 11,800 7,050 232 569 1,650 1,460 1,370 853 116 111 15,500 177 201 1,200 58,600 4,020 1,800 2,400 1,000 376 4,220 Regu- lated during flood1 N N N Y N N N N N N N N N N N N N Y N N N N N N Recur- rence interval (years) 25 50 100 25 25 10 25 25 100 50 25 25 25 25 -- 10 100 25 -- 10 02203600 Route 23-121 near Metier, GA South River at East Point, GA 1.49 1964-73, 1978 10.23 1975-78 854 11/05/77 10.23 854 N Significant Floods, 1970 Through 1989, Georgia 183 Table 11. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02203800 02203835 02203845 02203884 02203900 02203950 02205000 02207000 02211459 02212600 02213050 02213350 02213500 02214280 02214500 02214820 02215230 02215245 02217000 02217200 02217250 02217380 02217450 Station name South River at Bouldercrest Road at Atlanta, GA Shoal Creek at Line Street at Atlanta, GA Shoal Creek tributary at Glendale Drive near Atlanta, GA Conley Creek at Rock Cut Road near Forest Park, GA South River at Flakes Mill Road near Atlanta, GA Snapfinger Creek near Decatur, GA Wildcat Creek near Lawrenceville, GA Garner Creek near Snellville, GA Big Towaliga Creek near Barnesville, GA Falling Creek near Juliette, GA Walnut Creek near Gray, GA Tobesofkee Creek below Forsyth, GA Tobesofkee Creek near Macon, GA Savage Creek at U.S. Highway 23 near Bullard, GA Big Indian Creek at Perry, GA Mossy Creek at U.S. Highway 41 near Perry, GA Cedar Creek near Pine- view, GA Folsom Creek tributary near Rochelle, GA Alien Creek at Talmo, GA Middle Oconee River near Jefferson, GA Buffalo Creek tributary near Jefferson, GA Mulberry River (GA Highway 11) near Winder, GA Mulberry River tributary number 2 near Jefferson, Total drainage area (mi2) 41.5 3.43 0.84 1.88 99.0 13.2 1.59 5.54 2.36 72.2 29.0 53.4 182 33.0 108 92.9 7.80 1.44 18.2 135 0.39 142 0.72 Period of record 1951-87, 1990 1973-95 1963-65, 1973-78, 1980-95 1966-68, 1974-78, 1980-82, 1984-95 1951-91 1961, 1963-70, 1973, 1990 1954-84 1954-63, 1983, 1995-96 1969-81 1965-95 1962-94 1963-72, 1974-87, 1990, 1994 1929, 1938-95 1979-95 1944-77, 1981, 1994 1979-95 1965-75, 1991 1964-95 1952-74, 1976 1951-65, 1976 1964-76 1976, 1984-95 1965-74, 1976 Water year 1976 1980 1994 1978 1961 1963 1973 1956 1980 1983 1980 1971 1965 1994 1994 1980 1994 1994 1975 1970 1976 1976 1976 1984 1976 Stage (ft) 11.88 9.29 7.19 9.72 21.30 14.18 14.20 8.20 9.80 7.62 9.42 23.00 23.80 11.99 39.50 11.49 21.00 19.86 5.21 7.16 13.50 15.00 6.63 13.79 5.60 Dis- charge (ftS/S) 9,560 2,140 797 1,230 12,500 3,800 3,800 806 730 2,290 949 7,700 15,500 13,000 54,000 2,700 28,000 24,000 860 434 4,600 11,000 318 5,710 400 Significant floods during 1970-89 Date (month/ day/year) 3/16/76 5/23/80 3/05/83 11/05/77 3/16/76 6/06/73 5/23/80 2/17/83 3/08/80 3/02/71 3/08/80 7/24/71 1/25/78 3/13/80 4/02/81 4/01/81 4/14/75 8/11/70 5/29/76 5/29/76 5/29/76 12/06/83 5/29/76 Stage (ft) 11.88 9.29 6.92 9.72 19.89 14.20 9.80 7.62 9.42 23.00 15.01 10.10 20.68 11.49 10.28 8.27 5.21 7.16 13.50 15.00 6.63 13.79 5.60 Dis- charge (ftS/s) 9,560 2,140 751 1,230 11,000 3,800 730 2,290 949 7,700 7,420 9,160 7,690 2,700 3,690 788 860 434 4,600 11,000 318 5,710 400 Regu- lated during flood1 N N N N N N N N N N N N Y N N N N N N N N N N Recur- rence interval (years) -- - - - - .. .. 50 25 25 25 50 - 25 25 <2 25 50 50 50 25 <5 25 GA 184 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 11 . Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02217660 02221000 02223360 02223700 02224200 02224650 02224800 02225180 02225350 02226030 02226100 02226465 02226580 02227990 02228050 02228055 02314495 02314500 02315670 02315900 02315980 02316200 02316220 Station name Little Curry Creek near Jefferson, GA Murder Creek near Monticello, GA Big Sandy Creek at U.S. Highway 441 near Irwinton, GA Indian Branch tributary near Scott, GA Mercer Creek near Soperton, GA Peterson Creek at Glenwood, GA Oconee River tributary number 2 near Glenwood, GA Mulepen Creek near Adrian, GA Reedy Creek tributary near Soperton, GA Doctors Creek near Ludowici, GA Penholoway Creek at U.S. Highway 341 near Jesup, GA Dryden Creek near Dixie Union, GA Big Creek near Hoboken, GA Satilla River tributary number 2 at Atkinson, GA Buffalo Creek at U.S. Route 301 at Hickox, GA Satilla River tributary number 3 near Winokur, GA Suwannee River (auxiliary) above Fargo, GA Suwannee River at Fargo, GA Alapaha River tributary number 3 near Rochelle, GA Deep Creek near Ashburn, GA Jacks Creek at U.S. Highway 19 near Ocilla, GA Willacoochee River near Ocilla, GA Little Brushy Creek near Ocilla, GA Total drainage area (mi2) 0.87 24.0 177 2.13 16.1 5.16 1.38 13.8 1.68 33.0 210 14.7 60.0 0.38 62.0 1.91 1,260 1,260 3.95 137 1.21 90.0 1.65 Period of record 1964-76 1952-76, 1990 1970-87 1965-75 1965-75 1965-74 1965-74 1965-74 1965-88, 1991, 1993 1966-87, 1991 1959-93 1978-88 1966-87, 1991 1977-95 1966-87, 1991 1980-89 1972-91 1928-31, 1938-93 1965-73, 1975, 1991 1951-76, 1984, 1991 1960-75, 1986, 1991 1948, 1950-77, 1984, 1986, 1991 1966-75, 1986 Water year 1976 1971 1977 1973 1966 1970 1974 1973 1965 1973 1970 1979 1986 1984 1978 1977 1984 1973 1929 1973 1970 1970 1986 1948 1986 Stage (ft) 6.03 9.64 6.65 2.99 5.48 5.43 3.90 - 5.49 3.47 10.05 14.96 7.51 12.96 2.63 10.69 8.97 21.90 19.50 20.80 4.15 13.84 5.81 11.90 3.85 Dis- charge (ft3/s) 558 3,240 4,320 220 1,210 434 198 1,000 703 290 1,500 4,420 955 3,130 93 4,330 511 13,200 13,800 13,200 230 4,600 640 7,000 258 Significant floods during 1970-89 Date (month/ day/year) 5/29/76 3/03/71 3/22/77 2/02/73 2/02/73 5/29/70 7/00/74 2/02/73 5/03/84 3/31/70 9/30/79 2/11/86 3/07/84 8/02/78 1 1/29/76 3/27/84 4/11/73 4/11/73 3/31/70 4/01/70 2/1 1/86 2/12/86 2/10/86 Stage (ft) 6.03 9.64 6.65 2.99 5.48 5.43 3.90 - 3.47 10.05 14.96 7.51 12.96 2.63 10.69 8.97 21.90 20.80 4.15 13.84 5.81 9.40 3.85 Dis- charge (ft3/s) 558 3,240 4,320 220 1,210 434 198 1,000 290 1,500 4,420 955 3,130 93 4,330 511 13,200 13,200 230 4,600 640 3,740 258 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 25 25 10 10 2 10 10 25 25 10 10 10 25 10 25 25 25 25 5 25 50 25 25 Significant Floods, 1970 Through 1989, Georgia 185 Table 11 . Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02317500 02317600 02317700 02317760 02317765 02317780 02317795 02317810 02317845 02317870 02317905 02317910 02318015 02318700 02327400 02327415 02327550 02327700 02327860 02331000 02331600 02333500 02334430 Station name Alapaha River at Statenville, GA Little River (GA Highway 376) near Statenville, GA Withlacoochee River near Nashville, GA Little River near Ashburn, GA Newell Branch near Worth, GA Lime Sink Creek near Sycamore, GA Mill Creek near Tifton, GA Arnold Creek tributary near Tifton, GA Warrior Creek tributary near Sylvester, GA Warrior Creek near Sumner, GA Little Creek near Omega, GA Ty Ty Creek tributary at Crosland, GA Bull Creek near Norman Park, GA Okapilco Creek at State Route 33 near Quitman, GA Sallys Branch tributary near Sale City, GA Little Ochlockonee River at State Route 111 near Moultrie, GA Barnetts Creek near Meigs, GA Barnetts Creek near Thomasville, GA Popple Branch at State Route 179 near Whigham, GA Chattahoochee River near Leaf, GA Chattahoochee River near Cornelia, GA Chestatee River at State Route 52 near Dahlonega, GA Chattahoochee River at Total drainage area (mi2) 1,400 199 132 8.54 0.98 0.68 6.21 0.47 1.64 109 4.22 2.07 1.36 269 3.70 44.8 15.0 104 1.71 150 315 153 1,040 Period of record 1928-95 1948, 1984-95 1948, 1951-77, 1984, 1986, 1991 1965-75, 1991 1965-75 1965-84, 1991, 1993 1965-75, 1984, 1986, 1991 1965-95 1965-75 1966-87, 1991 1965-75, 1984, 1986, 1991 1960-74, 1984, 1986 1965-75 1980-95 1966-75, 1984, 1986, 1991 1981-95 1965-75, 1978-87 1951-77, 1984, 1986, 1991 1977-95 1940-95 1940-93 1907, 1929-32, 1940-95 1972-95 Water year 1948 1984 1948 1975 1971 1982 1986 1995 1975 1986 1986 1984 1971 1986 1986 1984 1986 1984 1965 1986 1973 1949 1963 1967 1994 Stage (ft) 29.80 17.36 14.80 5.01 4.59 6.08 11.06 5.46 3.67 14.42 5.28 5.85 5.88 18.75 - 6.64 10.22 7.59 20.40 6.92 17.50 20.55 25.17 5.90 Dis- charge (ft3/s) 27,300 11,000 8,500 787 279 252 1,400 219 321 4,440 820 484 536 18,500 1,400 1,200 5,860 3,980 17,700 609 22,500 27,000 26,400 22,700 12,100 Significant floods during 1970-89 Date (month/ day/year) 2/17/86 3/28/84 3/07/84 4/14/75 3/03/71 4/26/82 2/11/86 2/11/86 4/10/75 2/11/86 2/1 1/86 3/06/84 7/12/71 2/12/86 2/11/86 2/1 1/86 3/06/84 3/07/84 2/11/86 5/28/73 5/28/73 5/28/73 10/29/87 Stage («) 28.58 17.36 12.36 5.01 4.59 6.08 11.06 4.46 3.67 14.42 5.28 5.85 5.88 18.75 - 10.22 7.59 19.46 6.92 17.50 20.30 23.60 5.95 Regu- Dis- lated charge during (ft3/s) flood1 18,900 11,000 5,500 787 279 252 1,400 160 321 4,440 820 484 536 18,500 1,400 5,860 3,980 15,200 609 22,500 25,800 20,300 11,200 N N N N N N N N N N N N N N N N N N N N N N Y Recur- rence interval (years) 25 25 25 10 25 25 50 25 25 25 50 50 25 25 25 25 50 50 25 >100 25 50 -- Buford Dam near Buford, GA 186 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 11. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02334500 02335000 02335700 02335864 02335870 02335990 02336000 02336080 02336100 02336102 02336116 02336120 02336125 02336130 Station name Chattahoochee River near Buford, GA Chattahoochee River near Norcross, GA Big Creek near Alpharetta, GA Sope Creek (Old Canton Road) near Marietta, GA Sope Creek (South Roswell Road) near Marietta, GA Chattahoochee River (U.S . Highway 41 auxiliary) at Atlanta, GA Chattahoochee River at Atlanta, GA North Fork Peachtree Creek (Shallowford Road) near Chamblee, GA North Fork Peachtree Creek at Clairmont Road near Atlanta, GA North Fork Peachtree Creek tributary (Drew Valley Road) near Atlanta, GA North Fork Peachtree Creek at North Druid Hills Road near Atlanta, GA North Fork Peachtree Creek at Buford Highway near Atlanta, GA North Fork Peachtree Creek (Lenox Road) at Atlanta, GA North Fork Peachtree Creek at Lindberg Drive at Atlanta, GA Total drainage area (mi2) 1,060 1,170 72.0 12.7 29.2 1,440 1,450 19.1 27.8 2.19 33.7 34.8 38.1 38.5 Period of record 1886, 1902, 1920, 1942-91 1886, 1902-95 1961-95 1966-67, 1969-70, 1972, 1977, 1982, 1989-95 1963, 1966-67, 1969-70, 1977, 1982, 1985-95 1972-91 1886, 1902, 1920, 1929-32, 1937-95 1961, 1963-64, 1966-67, 1969, 1973-88, 1990 1961, 1963-64, 1966-67, 1969, 1973, 1975-76, 1982 1973-78, 1980-95 1961, 1963-64, 1966-67, 1969, 1973-76 1961, 1963-64, 1966-67, 1969, 1973-76 1948, 1961, 1963-64, 1966-67, 1969, 1973-76 1961, 1963-64, 1966-67, 1969, 1973-76 Water year 1946 1946 1982 1989 1977 1989 1977 1990 1920 1975 1975 1975 1975 1963 1975 1975 1975 1963 Stage (ft) 32.60 27.70 13.05 16.20 18.80 16.22 772.01 773.75 29.00 15.27 846.80 8.16 827.10 15.75 813.20 - 809.40 Dis- charge (ftVs) 55,000 55,000 6,100 2,190- 6,630 28,900 25,100 64,000 3,050 4,000 1,110 4,800 3,200 5,000 5,200 5,200 3,600 Significant floods during 1970-89 Regu- Recur_ Date Dis- lated rence (month/ Stage charge during interval day/year) (ft) (ftVs) flood1 (years) 10/29/87 -- 11,200 Y 3/16/73 12.47 12,200 Y 2/03/82 13.05 6,100 N 25 9/30/89 16.20 2,190 N 10 9/30/89 16.22 6,630 N 10 3/30/77 772.01 28,900 Y 3/30/77 20.57 28,900 Y 4/13/79 22.29 26,700 Y 3/13/75 15.27 3,050 N 5 3/13/75 846.80 4,000 N 10 3/13/75 8.16 1,110 N 10 3/13/75 -- 4,800 N 10 3/13/75 15.75 5,000 N 10 3/13/75 813.20 5,200 N 10 3/13/75 -- 5,200 N 10 Significant Floods, 1970 Through 1989, Georgia 187 Table 11 . Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Significant floods during 1970-89 Station number (fig. 32) 02336146 02336150 02336154 02336161 02336166 02336170 02336180 02336212 02336215 02336225 02336227 02336235 02336238 02336240 02336250 Station name South Fork Peachtree Creek at Brocket! Road near Clarkston, GA South Fork Peachtree Creek (Montreal Drive) at Clarkston, GA South Fork Peachtree Creek at Creekdale Drive near Clarkston, GA South Fork Peachtree Creek at McLendon Road near Clarkston, GA South Fork Peachtree Creek at North Druid Hills Road near Decatur, GA South Fork Peachtree Creek at U.S. Highway 29 near Decatur, GA South Fork Peachtree Creek at Willivee Drive near Decatur, GA South Fork Peachtree Creek (Clairmont Road) near Decatur, GA South Fork Peachtree Creek at Houston Mill Road near Emory University, GA South Fork Peachtree Creek at Clifton Road at Emory University, GA South Fork Peachtree Creek at Old Briarcliff Road near Atlanta, GA South Fork Peachtree Creek at Briarcliff Road near Atlanta, GA South Fork Peachtree Creek tributary (East Rock Springs Road) near Atlanta, GA South Fork Peachtree Creek at Johnson Road near Atlanta, GA South Fork Peachtree Creek (Lenox Road) at Atlanta, GA Total drainage area (mi2) 4.15 5.29 5.99 6.88 7.22 8.36 11.0 18.2 19.4 20.3 20.3 27.4 0.90 28.7 29.6 Period of record 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973-78, 1990 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1961-67, 1969, 1973-79, 1990 1961-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1974-95 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-71, 1973, 1975-76, 1983, 1990 Water year 1973 1973 1973 1973 1973 1973 1973 1963 1973 1969 1976 1976 1976 1975 1976 1976 Stage (ft) 987.20 10.69 936.84 929.00 921.20 915.06 12.68 877.50 856.90 836.80 835.60 833.10 6.61 828.25 14.71 Dis- Date Dis- lated rence charge (month/ Stage charge during interval (ft3/s) day/year) (ft) (ft^s) flood1 (years) 1,450 6/05/73 987.20 1,450 N 10 1,770 6/05/73 10.69 1,770 N 10 1,750 6/05/73 936.84 1,750 N 10 1,850 6/05/73 929.00 1,850 N 10 2,000 6/05/73 921.20 2,000 N 10 2,100 6/05/73 915.06 2,100 N 10 2,200 6/05/73 -- 2,200 N 10 1,930 2,800 6/05/73 877.50 2,800 N 10 2,850 3/16/76 -- 2,850 N 10 3,300 3/16/76 836.80 3,300 N 10 3,300 3/16/76 835.60 3,300 N 10 4,500 3/16/76 833.10 4,500 N 10 1,140 7/23/75 6.61 1,140 N 25 4,900 3/16/76 828.25 4,900 N 25 5,000 3/16/76 14.71 5,000 N 25 188 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 11. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02336260 02336263 02336320 02336337 02336343 02336348 02336350 02336360 02336700 02337000 02337448 02337500 02338840 02343200 02343225 Station name South Fork Peachtree Creek at Cheshire Branch Road at Atlanta, GA South Fork Peachtree Creek at Lambert Drive exit at Atlanta, GA Nancy Creek (North Peachtree Road) near Doraville, GA Nancy Creek (Ashford- Dunwoody Road) at Chamblee, GA Nancy Creek (Peachtree- Dunwoody Road) at Chamblee, GA Nancy Creek (Windsor Parkway) at Atlanta, GA Nancy Creek (Wieuca Road) at Atlanta, GA Nancy Creek (Rickenbacker Way) at Atlanta, GA South Utoy Creek tributary at Headland Drive at East Point, GA Sweetwater Creek near Austell, GA Hurricane Creek tributary at State Route 5 near Fairplay, GA Snake Creek near Whitesburg, GA Yellowjacket Creek at Hammett Road below Hogansville, GA Pataula Creek near Lumpkin, GA Pataula Creek near Georgetown, GA Total drainage area (mi2) 30.6 30.8 4.03 14.0 20.0 21.2 23.6 26.6 0.79 246 0.33 35.5 91.0 70.0 295 Period of record 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973, 1975-76 1961, 1963-67, 1969, 1973-75 1961, 1963-64, 1966-67, 1969, 1973-75, 1982, 1990 1961, 1963-64, 1966-67, 1969, 1973-75, 1982 1961, 1963-64, 1966-67, 1969, 1973-75, 1982, 1990 1961, 1963-64, 1966-67, 1969, 1973-75, 1990 1961, 1963-64, 1966-67, 1969, 1973-75, 1982, 1990 1964-78, 1980-95 1904-05, 1916, 1937-95 1977-95 1955-95 1979-85, 1991-93 1949-78, 1990, 1994 1949, 1951-78, 1990, 1994 Water year 1976 1976 1969 1973 1969 1973 1973 1973 1973 1973 1971 1916 1978 1961 1982 1994 1994 Stage («) 815.68 808.60 935.70 935.70 867.60 849.00 843.70 829.18 14.84 7.88 20.00 9.46 14.40 10.71 12.30 14.30 Dis- charge (tf/s) 5,000 5,000 4,700 1,750 880 4,000 4,300 4,300 4,420 4,500 533 12,600 292 7,690 3,990 17,500 65,000 Significant floods during 1970-89 Date (month/ day/year) 3/16/76 3/16/76 6/05/73 6/05/73 6/05/73 6/05/73 6/05/73 6/05/73 8/02/71 2/04/82 11/05/77 2/03/82 4/21/82 2/17/75 2/17/75 Stage (ft) 815.68 - 935.70 867.60 849.00 843.70 829.18 14.84 7.88 19.90 9.46 13.40 10.71 9.36 9.69 Dis- charge (ft3/s) 5,000 5,000 1,750 4,000 4,300 4,300 4,420 4,500 533 10,700 292 6,680 3,990 9,390 19,400 Regu- Recur- lated rence during interval flood1 (years) N 25 N 25 N 10 N 10 N 10 N 10 N 10 N 10 N 5 N 25 N 25 N 25 N 10 N 25 N 25 Significant Floods, 1970 Through 1989, Georgia 189 Table 11. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02343244 02343267 02344700 02346193 02346500 02348485 02349030 02349900 02350685 02353100 02353500 02354500 02356100 02356640 02357000 02381100 02381600 02381900 02382200 02382600 Total drainage area Station name (mi2) Cemochechobee Creek (SI 576) near Coleman, GA Temple Creek at State Route 39 near Blakely, GA Line Creek near Senoia, GA Scott Creek near Talbotton, GA Potato Creek near Thomaston, GA Whitewater Creek at State Route 137 near Butler, GA Cedar Creek at U.S. Highway 19 near Rupert, GA Turkey Creek at Byromville, GA Choctahatchee Creek tributary at U.S. Highway 280 near Plains, GA Ichawaynochaway Creek (U.S. Highway 82) near Graves, GA Ichawaynochaway Creek at Milford, GA Chickasawhatchee Creek at Elmodel, GA Spring Creek near Arlington, GA Spring Creek at U.S. Highway 27 at Colquitt, GA Spring Creek near Iron City, GA Mountaintown Creek tributary near Ellijay, GA Fausett Creek near Talking Rock, GA Ball Creek near Talking Rock, GA Talking Rock Creek near Hinton, GA Sugar Creek near Chatsworth, GA 15.3 2.78 101 3.36 186 17.3 41.1 45.0 0.32 118 620 320 49.0 281 485 2.41 9.99 3.50 119 7.30 Period of Water Stage record year (ft) 1984-95 1994 11.84 1978-95 1994 6.13 1965-95 1994 20.10 1969-87, 1981 8.07 1990, 1994 1938-73, 1994 12.00 1990, 1994 1979-95 1994 10.78 1979-95 1994 7.50 1951-95 1994 14.29 1977-79, 1994 9.25 1981-95 1963-83, 1970 10.05 1990 1906-07, 1994 23.20 1916, 1925, 1940-95 1916, 1994 20.00 1940-49, 1952-65, 1970-83, 1994 1951-65, 1978 9.15 1970-73, 1975-80, 1991 1981-93 1994 12.92 1938-78, 1975 19.43 1983-95 1994 19.95 1965-74, 1973 7.20 1977, 1979, 1990 1966-93 1973 16.96 1965-74, 1979 1977, 1979, 1973 6.69 1990 1964-71, 1973 15.45 1973-93 1965-74, 1979 1977, 1979, 1990 8.63 1990 Dis- charge (ft3/s) 5,160 746 28,400 1,960 28,000 518 2,400 5,820 625 3,960 53,000 16,000 4,880 13,800 17,700 12,900 822 3,160 1,400 1,240 18,400 1,300 1,100 Significant floods during 1970-89 Date (month/ Stage day/year) (ft) 5/02/84 7.46 1/26/78 2.03 1/05/77 14.88 4/01/81 8.07 3/03/71 8.81 4/01/81 8.74 2/24/79 4.72 3/31/70 13.30 4/01/81 13.82 2/06/85 2.75 3/31/70 10.05 1/27/78 15.08 1/27/78 12.38 1/26/78 9.15 2/06/82 11.23 4/12/75 19.43 1/28/78 18.35 5/27/73 7.20 5/27/73 16.96 3/04/79 5/28/73 15.45 3/04/79 Regu- Dis- lated charge during (ft3/s) flood1 965 110 9,580 1,960 10,600 248 580 3,940 4,820 92 3,960 11,900 4,300 4,880 6,240 17,700 13,400 822 3,160 1,400 18,400 1,300 N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 2 <2 50 50 25 10 5 50 >50 10 25 25 10 50 25 50 25 10 25 25 50 10 190 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 11. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 32) 02382800 02383000 02383200 02383220 02383500 02383520 02384500 02384600 02387530 02387560 02387570 02387700 02387800 02388300 02388320 02388400 02392500 02394400 02394670 02394820 02394950 Station name Dry Creek at Oakman, G A Rock Creek near Fairmount, GA Redbud Creek near Ranger, GA Redbud Creek tributary near Ranger, GA Coosawattee River near Pine Chapel, GA Coosawattee River (auxiliary) at Pine Chapel, GA Conasauga River near Eton, GA Pinhook Creek near Eton, GA Oostanaula River (GA Highway 136C) at Calhoun, GA Oothkalooga Creek tributary at Adairsville, GA Oothkalooga Creek at Adairsville, GA Rocky Creek at Curryville, GA Bailey Creek near Villanow, GA Heath Creek near Rome, GA Heath Creek below Rocky Mountain Damsite near Armuchee, GA Dozier Creek near Shannon, GA Little River near Roswell, GA Pumpkinvine Creek below Dallas, GA Etowah River at State Route 61 near Cartersville, GA Euharlee Creek (U.S. Highway 278) at Rockmart, GA Hills Creek near Taylorsville, GA Total drainage area (mi2) 3.06 6.17 1.97 0.56 831 847 252 4.28 1,628 3.56 21.7 9.41 3.82 14.7 16.6 3.00 60.0 42.8 1,345 42.1 25.0 Period of record 1965-74, 1977, 1979, 1990 1952-74, 1977, 1979, 1990 1964-74, 1977, 1979, 1990 1965-73, 1977, 1979, 1990 1938-95 1938-91 1954-58, 1963-95 1964-95 1949-60, 1971-85 1965-74, 1977, 1979 1964-74, 1977, 1979 1965-74, 1977, 1979 1965-74, 1977, 1979 1969-90 1982-95 1965-74, 1977, 1979 1946, 1948-76, 1982, 1984 1951-77, 1982, 1984, 1990 1886,1920, 1938-44, 1946-90 1961, 1974, 1979, 1984-95 1960-74, 1977, 1979, 1982, 1990 Water year 1977 1977 1977 1977 1973 1951 1951 1990 1967 1951 1979 1979 1966 1977 1979 1977 1979 1982 1990 1977 1946 1961 1886 1979 1979 Stage (ft) 8.45 8.25 6.20 5.64 34.20 30.80 20.50 7.30 630.10 7.80 .. 8.05 9.00 - 9.90 10.03 8.26 8.32 6.26 18.00 20.28 37.00 15.00 11.18 Dis- charge (ft3/s) 1,410 1,400 1,210 500 410 40,200 40,200 33,200 960 54,800 1,850 5,000 2,000 3,970 2,400 2,100 1,660 980 944 1,330 5,000 6,800 55,000 7,000 7,500 Significant floods during 1970-89 Date (month/ day/year) 4/04/77 4/04/77 4/04/77 4/04/77 3/04/79 3/04/79 3/17/73 7/25/79 4/07/77 3/04/79 3/04/79 4/04/77 3/04/79 3/04/79 1/03/82 4/04/77 2/03/82 12/06/83 3/04/79 2/03/82 3/04/79 3/04/79 Stage (ft) 8.45 8.25 6.20 30.07 27.00 18.59 7.25 623.90 7.80 .. 9.00 - 10.03 8.26 6.26 14.78 19.30 20.70 20.76 15.00 11.18 Dis- charge (ft3/s) 1,410 1,400 1,210 500 24,900 24,900 25,200 940 29,000 1,850 5,000 3,970 2,400 1,660 980 1,330 4,600 5,900 17,300 17,600 7,000 7,500 Regu- lated during flood1 N N N N Y Y N N Y N N N N N N N Y N Y Y N N Recur- rence interval (years) 50 25 50 50 - 50 25 - 100 100 100 >100 <5 <2 25 - 25 .. - 25 100 Significant Floods, 1970 Through 1989, Georgia 191 Table 11. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Georgia Continued Maximum stage and discharge for period of record through 1 995 Station number (fig. 32) 02395000 02395120 02395990 02396000 02396050 02396510 02397000 02397410 02397500 02411735 02411900 02411902 03545000 03553500 03558000 03559000 03566660 03566685 03566687 03566700 03568500 03568933 Station name Etowah River near Kingston, GA Two Run Creek at State Route 20 near Kingston, GA Etowah River tributary at Atteiram Drive at Rome, GA Etowah River at Rome, GA Etowah River (2nd Avenuee auxiliary) at Rome, GA Silver Creek tributary number 2 at Lindale Road near Rome, GA Coosa River near Rome, GA Cedar Creek at Georgia Avenue at Cedartown, GA Cedar Creek near Cedartown, GA McClendon Creek tributary at State Route 1 20 near Dallas, G A Tallapoosa River at Tallapoosa, GA Mann Creek tributary at State Route 100 near Tallapoosa, GA Hiwassee River at Presley, GA Nottely River at Nottely Dam near Ivylog, GA Toccoa River near Dial, GA Toccoa River near Blue Ridge, GA Sugar Creek near Ringgold, GA Little Chickamauga Creek near Ringgold, GA Little Chickamauga Creek tributary near Ringgold, GA South Chickamauga Creek at Ringgold, GA Chattanooga Creek near Flintstone, GA Lookout Creek near New England, GA Total drainage area (mi2) 1,634 33.1 0.37 1,819 1,820 0.04 4,040 66.9 115 0.88 236 0.12 45.5 215 177 233 4.44 35.5 3.36 169 50.6 149 Period of record 1920, 1929-31, 1937-95 1981-95 1979-95 1897-1995 1940-91 1979-95 1886, 1897-1995 1949-58, 1974-75, 1979-80, 1982-95 1943-75, 1977, 1979 1977-95 1936, 1949, 1951-77, 1982, 1990 1977-95 1942-95 1942-75 1907, 1913-95 1901-02, 1907, 1914-74 1965-74, 1990 1964-75 1965-74, 1990 1949-65, 1973, 1990 1951-74 1980-95 Water year 1920 1982 1986 1920 1938 1946 1949 1989 1886 1979 1979 1981 1977 1979 1952 1973 1907 1907 1901 1973 1973 1973 1973 1973 1982 Stage (ft) 31.00 7.91 7.46 37.50 35.80 3.48 43.00 21.10 19.40 8.23 29.30 5.51 15.24 11.63 18.50 14.00 7.77 10.19 9.13 27.39 13.59 20.73 Dis- charge (ft3/s) 52,000 3,180 193 55,000 46,500 36,900 35,700 44 100,000 16,500 17,000 860 29,500 107 5,700 8,110 28,000 34,000 15,500 2,620 7,120 1,970 33,400 6,300 20,000 Significant floods during 1970-89 Date (month/ day/year) 3/30/77 2/03/82 2/03/82 3/13/86 3/04/79 3/04/79 2/28/89 3/05/79 3/04/79 3/05/79 5/27/81 3/31/77 4/13/79 5/28/73 5/28/73 3/04/79 5/28/73 3/16/73 3/16/73 3/16/73 3/17/73 3/16/73 8/17/82 Stage (ft) 21.53 21.97 7.91 7.46 -- 3.48 35.00 21.10 19.40 8.23 29.30 5.51 13.96 11.63 11.19 13.61 7.77 10.19 9.13 27.39 13.59 20.73 Dis- charge (ft3/s) 30,000 28,000 3,180 193 36,000 36,000 44 60,500 16,500 17,000 860 29,500 107 5,080 8,110 10,400 10,300 2,620 7,120 1,970 33,400 6,300 20,000 Regu- lated during flood1 Y Y N N Y Y N Y N N N N N N Y N Y N N N N N N Recur- rence interval (years) -- 10 10 -- 10 -- >100 >100 50 >100 10 25 -- 25 -- >100 50 50 >100 25 50 1 Regulated during flood: N, no; Y, yes. 192 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Hawaii Hydroclimatology Hawaii consists of 132 islands, shoals, and reefs. The State stretches more than 1,600 mi across the Central Pacific Ocean in a northwest-to-southeast direction from approximately latitude 28° N and longitude 179° W to approximately latitude 19° N and longitude 155° W. Major islands include Hawaii, Maui, Molokai, Oahu, and Kauai. The northeast trade winds are the most dominant feature responsible for the circulation of air across the Hawaiian Islands. The combination of trade winds and mountainous topography produces orographic-effect precipitation as the moist subtropical air is lifted by the mountains. Mean annual rainfall ranges from less than 7 in. around Hawaihae Bay on the leeward side of the island of Hawaii to 451 in. at the top of Mt. Waialeale on the island of Kauai (Wong, 1994). Hawaii's climate is relatively warm year-round except in areas of high elevations where it is cooler. Major storm systems commonly occur from October to April and can be of three types frontal systems, combinations of frontal and upper level low-pressure systems, and tropical storms or hurricanes. 9 Most of the drainage basins in the State of Hawaii are less than 10 mi but, due to locally intense rainfall, can have unit discharge values of as much as 5,000 (ft /s)/mi . On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Hawaii is dependent primarily upon drainage area and some measure of precipitation, such as median annual precipitation or 2-year, 24-hour precipitation (Wong, 1994). Significant Floods On November 23, 1982, Hurricane Iwa caused severe flooding and damage on the southern coast of Kauai and on the western coast of Oahu. As the hurricane passed 30 mi west of Kauai, it caused the greatest property damage on record, estimated at $308 million (Paulson and others, 1991). Floods caused by a winter storm in February 1979 caused $6 million in damages on the Island of Hawaii. Later in the same year during November, another large storm caused another $3.75 million in damages on the same island (Paulson and others, 1991). The location of streamflow-gaging stations in Hawaii that had significant floods for 1970-89 is shown in figure 33 by station number. The specific data for each significant flood are listed in table 12. A significant flood is one that ranks in the top 5 percent of all maximum discharges for that station's period of record. References Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Wong, M.F., 1994, Estimation of magnitude and frequency of floods for streams on the island of Oahu, Hawaii: U.S. Geological Survey Water-Resources Investigations Report 94-4052, 37 p. Significant Floods, 1970 Through 1989, Hawaii 193 20° 19° 160° 161( 16019000 Niihau. » 16036000 159° 161030001,6097900 197500 Kauai 157° 156° 155° 16055000 16052500 Mt- Waialealc Inset A Oahu Kahoolawe teeeoooo Hawaii PACIFIC OCEAN Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 20 40 60 80 MILES 0 20 40 60 80 KILOMETERS EXPLANATION 16770000 13 Streamflow-gaging station and number Figure 33. Location of streamflow-gaging stations with significant floods during 1970-89 for Hawaii. 194 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Inset A 21°45' 35' 30' 158°15' 10' 158° 50' 45,' 157°40' Oahu 1631800Q t 310501 PACIFIC OCEAN 16211400 1621171 16212300 Base from U.S. Geological Survey digital data, 1:100.000.1994 Universal Transverse Mercator projection Zone 4 Converted to Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 0 8 10 12 MILES 0 2 4 6 8 10 12 KILOMETERS EXPLANATION 16223200 [x] Streamflow-gaging station and number Figure 33. Location of streamflow-gaging stations with significant floods during 1970-89 for Hawaii Continued. Significant Floods, 1970 Through 1989, Hawaii 195 Table 12. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Hawaii [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1993 Station number (fig. 33) Total drainage area Station name (mi2) Period of record Water year Stage (ft) Dis- charge (ft3/*) Significant floods during 1970-89 Date (month/ day/year) Stage (ft) Dis- charge (tf/s) Regu- lated during flood1 Recur- rence interval (years) Island of Kauai 16019000 16036000 16049000 16052500 16055000 16068000 16071500 16084500 16097500 16097900 16103000 16108000 16130000 Waialae Stream at altitude 3,820 feet near Waimea, Kauai, HI Makaweli River near Waimea, Kauai, HI Hanapepe River below Manuahi Stream near Eleele, Kauai, HI Lawai Stream near Koloa, Kauai, HI Huleia Stream near Lihue, Kauai, HI East Branch of North Fork Wailua River near Lihue, Kauai, HI Left Branch Opaekaa Stream near Kapaa, Kauai, HI Kapaa Stream at old highway crossing near Kealia, Kauai, HI Halaulani Stream at altitude 400 feet near Kilauea, Kauai, HI Puukumu Stream near Kilauea, Kauai, HI Hanalei River near Hanalei, Kauai, HI Wainiha River near Hanalei, Kauai, HI Nahomalu Valley near Mana, Kauai, HI 1.79 26.0 18.5 6.62 17.6 6.27 0.65 14.0 1.90 0.91 19.1 10.2 3.81 1921-22, 1924, 1926-30, 1932, 1953-93 1943, 1945-93 1918-21, 1927-31, 1934-93 1962-93 1962-93 1916-93 1961-93 1962-93 1958-93 1965-67, 1971-72, 1974-75, 1980-93 1962-93 1953-56, 1958-93 1962-93 1921 1975 1963 1975 1971 1956 1992 1969 1992 1992 1971 1992 1956 1972 8.44 15.51 14.87 11.37 22.40 14.70 6.60 7.72 23.11 9.64 17.27 14.45 14.10 7.15 4,530 26,000 39,000 5,810 26,800 18,400 1,060 221 30,330 4,030 1,430 25,750 40,000 2,120 11/21/74 1/31/75 10/30/82 1/31/75 4/19/74 1/31/75 11/28/70 1/31/75 1/31/75 1/31/75 10/30/82 7/23/89 4/07/71 4/19/74 4/19/74 4/15/72 10/30/82 8.31 15.51 14.35 13.14 10.24 11.37 22.40 19.87 9.99 5.58 18.02 7.69 17.27 14.28 9.47 7.15 7.07 4,400 26,000 22,550 27,300 4,350 5,810 26,800 18,400 7,560 724 17,600 2,420 1,430 24,900 28,100 2,120 2,070 N N N N N N N N N N N N N N N N 20 50 30 70 20 40 35 15 30 35 20 40 30 10 40 25 25 Island of Oahu 16200000 16208000 16211200 16211400 16211500 16211600 North Fork Kaukonahua Stream above right branch near Wahiawa, Oahu, HI South Fork Kaukonahua Stream at East Pump Reservoir near Wahiawa, Oahu, HI Poamoho Stream at Waialua, Oahu, HI Manini Gulch at Kaena, Oahu, HI Makua Stream at Makua, Oahu, HI Makaha Stream near Makaha, Oahu, HI 1.38 4.04 10.9 1.08 4.28 2.31 1916-25, 1927-43, 1945-53, 1961-93 1958-93 1967-93 1974-93 1958-73, 1975-93 1960-93 1982 1963 1974 1988 1976 1990 1982 13.20 11.33 24.00 19.61 8.00 9.27 7.40 5,640 5,460 7,340 1,000 3,220 580 1,450 10/28/81 10/28/81 4/19/74 1/01/88 2/07/76 1/06/82 13.20 11.00 24.00 19.61 8.00 7.40 5,640 5,200 7,340 1,000 3,220 1,450 N N N N N N 40 30 25 10 50 35 196 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 12. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Hawaii Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 33) Total drainage Station name area (mi2) Period of record Water year Stage (ft) Dis- charge (ft3/*) Significant floods during 1970-89 Date (month/ day/year) Stage (ft) Dis- charge (tf/s) Regu- lated during flood1 Recur- rence interval (years) Island of Oahu Continued 16211700 16211800 16212200 16212300 16212450 16212500 16212601 16212750 16213000 16216000 16224500 16227500 16228200 16228600 16228900 16229300 16232000 16247900 16248800 16249100 16254000 16260500 16270900 Makaha Stream at Makaha, Oahu, HI Kaupuni Stream at altitude 374 feet near Waianae, Oahu, HI Mailiilii Stream near Waianae, Oahu, HI Nanakuli Stream at Nanakuli, Oahu, HI Kaloi Gulch tributary near Honouliuli, Oahu, HI Honouliuli Stream near Waipahu, Oahu, HI Waikele Stream at Wheeler Field, Oahu, HI Huliwai Gulch near Kunia Camp, Oahu, HI Waikele Stream at Waipahu, Oahu, HI Waiawa Stream near Pearl City, Oahu, HI Kalauao Stream at Moanalua Road at Aiea, Oahu, HI Moanalua Stream near Kaneohe, Oahu, HI Moanalua Stream near Aiea, Oahu, HI Moanalua Stream near Tripler Hospital, Oahu, HI Kalihi Stream near Kaneohe, Oahu, HI Kalihi Stream at Kalihi, Oahu, HI Nuuanu Stream below reservoir 2 wasteway near Honolulu, Oahu, HI Kuliouou Valley at Kuliouou, Oahu, HI Inoaole Stream at Waimanalo, Oahu, HI Kaelepulu Stream tributary at Kailua, Oahu, HI Makawao Stream near Kailua, Oahu, HI Maunawili Stream at Highway 61 near Kailua, Oahu, HI Luluku Stream at altitude 220 feet near Kaneohe, Oahu, HI 5.25 3.58 1.51 3.98 1.70 11.0 6.35 0.84 45.7 26.4 2.59 0.94 3.34 4.44 0.60 5.18 3.35 1.18 1.21 0.16 2.04 5.34 0.44 1966-93 1961-93 1958-93 1968-93 1968-93 1956-58, 1962-63, 1965-93 1958, 1960-93 1974-93 1952-59, 1961-93 1953-93 1954-82, 1984-93 1969-78 1969-93 1971-93 1968-93 1960, 1962-93 1918-93 1970-93 1958-93 1963-93 1958-93 1958-93 1967-83, 1985-87, 1989-93 1976 1982 1982 1976 1986 1980 1969 1982 1982 1979 1992 1955 1982 1963 1955 1971 1980 1980 1980 1974 1921 1988 1981 1988 1965 1965 1971 16.40 7.82 7.20 26.20 26.28 7.45 9.09 10.28 22.50 8.63 13.49 14.82 22.46 6.63 7.29 8.07 9.97 21.00 5.60 9.98 8.74 36.55 7.55 7.53 12.41 15.62 6.18 4,310 3,640 2,460 3,320 2,500 724 645 3,500 1,850 600 100 13,600 27,900 2,580 1,620 1,530 4,860 6,200 1,700 7,110 6,990 4,700 1,600 467 6,000 9,690 651 2/07/76 1/06/82 2/07/76 1/06/82 1/06/82 2/07/76 1/08/80 1/06/82 1/06/82 2/10/79 1/07/82 10/28/81 10/28/81 1 1/26/70 3/18/80 3/18/80 1/08/80 4/19/74 8/25/82 12/31/87 5/07/81 1 1/26/70 12/31/87 2/14/85 12/31/87 1 1/26/70 16.40 15.81 6.59 7.82 7.20 26.20 7.45 10.28 22.50 8.63 12.53 22.46 6.23 8.07 9.97 21.00 5.60 9.98 6.52 36.55 7.55 6.99 7.53 10.89 13.76 6.18 4,310 3,930 1,730 3,640 2,460 3,320 724 3,500 1,850 600 12,600 27,900 2,130 1,530 4,860 6,200 1,700 7,110 2,460 4,700 1,600 418 467 3,940 5,710 651 N N N N N N N N N N N N N N N N N N Y N N N N N N N 45 35 15 55 20 20 15 20 25 - 20 25 15 10 90 50 20 15 - >100 20 10 15 20 15 25 Significant Floods, 1970 Through 1989, Hawaii 197 Table 12. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Hawaii Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 33) Total drainage area Station name (mi2) Period of record Water year Dis- Stage charge (ft) (ft3/s) Significant floods during 1970-89 Date (month/ day/year) Stage (ft) Dis- charge («3/8) Regu- lated during flood1 Recur- rence interval (years) Island of Oahu Continued 16272200 16274499 16275000 16283480 16283600 16303000 16304200 16304500 16310501 16318000 16325000 16330000 16331000 16340000 16343000 16345000 16350000 Kamooalii Stream below Luluku Stream near Kaneohe, Oahu, HI Keaahala Stream at Kamehameha Highway at Kaneohe, Oahu, HI Haiku Stream near Heeia, Oahu, HI Ahuimanu Stream near Kahaluu, Oahu, HI South Fork Waihee Stream near Heeia, Oahu, HI Punaluu Stream near Punaluu, Oahu, HI Kaluanui Stream near Punaluu, Oahu, HI Kaluanui Stream at Hauula, Oahu, HI Malaekahana Stream at altitude 30 feet near Kahuku, Oahu, HI Paumalu Gulch at Sunset Beach, Oahu, HI Kamananui Stream at Pupukea Mill Road near Maunawai, Oahu, HI Kamananui Stream at Maunawai, Oahu, HI Waimea Gulch near Kawailoa Camp, Oahu, HI Anahulu River near Haleiwa, Oahu, HI Helemano Stream at Haleiwa, Oahu, HI Opaeula Stream near Wahiawa, Oahu, HI Opaeula Stream near Haleiwa, Oahu, HI 3.81 0.62 0.97 2.31 0.03 2.78 1.11 2.12 4.05 2.59 3.13 12.4 2.23 13.5 14.2 2.98 5.96 1965, 1977-93 1959-93 1915-19, 1940-77, 1983-93 1963-93 1963-93 1954-93 1967-93 1958-93 1959-93 1968-93 1964-93 1958-91, 1993 1968-93 1958-93 1968-82 1960-93 1956-93 1965 1965 1965 1969 1982 1991 1982 1982 1963 1974 1989 1991 1991 1980 1974 1974 1974 1991 1974 - 11.50 7.94 14.30 4.68 8.02 11.90 6.95 12.10 4.97 6.44 11.34 15.84 11.20 15.80 22.50 11.94 13.20 20.70 6,460 2,750 5,740 7,300 430 6,900 2,390 4,920 4,640 982 350 4,810 16,800 2,030 15,900 18,200 5,540 4,380 7,600 12/31/87 11/26/70 1 1/25/70 1 1/25/70 10/28/81 7/17/74 1/06/82 1/06/82 3/21/82 4/19/74 1/30/75 3/18/80 3/18/80 4/19/74 4/19/74 7/17/74 1/06/82 4/19/74 5.72 9.65 6.52 11.80 4.68 7.60 11.90 6.95 11.35 4.97 10.06 11.46 11.20 15.80 22.50 11.94 11.37 20.70 1,650 2,120 4,420 7,300 430 5,700 2,390 4,920 3,950 982 3,390 8,540 2,030 15,900 18,200 5,540 5,020 7,600 Y N N N N N N N N N N N N N N N N N - 25 60 50 50 45 25- 55 10 50 25 20 60 70 15 50 35 40 Island of Molokai 16404000 16404200 16405500 16408000 Pelekunu Stream near Pelekunu, Molokai, HI Pilipililau Stream near Pelekunu, Molokai, HI Waikolu Stream at altitude 900 feet near Kalaupapa, Molokai, HI Waikolu Stream below pipeline crossing near 2.59 0.49 1.99 3.68 1921-29, 1940-41, 1949-52, 1956-57, 1972-82 1969-93 1957-93 1920-32, 1938-93 1982 1929 1982 1962 1989 1962 7.20 11.50 4.25 13.62 8.50 12.75 6,850 2,060 835 6,220 13,200 6,640 1/07/82 1/08/80 1/25/82 1/25/82 3/31/82 4/08/89 7.20 7.16 4.25 6.64 7.63 8.50 6,850 6,750 835 3,570 8,740 13,200 N N N N N N 30 30 40 20 70 >100 Kalaupapa, Molokai, HI 198 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 12. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Hawaii Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 33) Total drainage area Station name (mi2) Period of record Water year Stage (ft) Dis- charge (ft3/*) Significant floods during 1970-89 Date (month/ day/year) Stage (ft) Dis- charge (ft3/s) Regu- lated during flood1 Recur- rence interval (years) Island of Molokai Continued 16411400 16411600 16411640 16411800 16413500 16416000 Kakaako Gulch near Mauna Loa, Molokai, HI Kaunalu Gulch near Mauna Loa, Molokai, HI Halena Gulch near Mauna Loa, Molokai, HI Kaluapeelua Gulch at Hoolehua, Molokai, HI Manawainui Gulch near Kualapuu, Molokai, HI Punaula Gulch near Pukoo, Molokai, HI 5.34 0.28 2.07 1.46 10.4 0.24 1964-93 1964-69, 1971-93 1965-69, 1971-93 1964-81, 1983-91 1965-93 1948-72 1989 1985 1974 1974 1989 1982 1970 8.47 3.87 8.20 3.30 - 10.86 7.62 2,860 151 2,920 86 3,620 2,600 622 2/11/89 12/25/84 1/11/74 12/08/73 4/04/89 4/21/70 8.47 3.87 8.20 3.30 - 7.62 2,860 151 2,920 86 3,620 622 N N N N N N 30 40 30 20 70 15 Island of Maui 16500100 16500300 16500800 16502400 16502900 16508000 16587000 16603300 16603700 16603850 16604500 16607000 16614000 16616500 16618000 16620000 Kepuni Gulch near Kahikinui House, Maui, HI Hawelewele Gulch near Kaupo, Maui, HI Kukuiula Gulch near Kipahulu, Maui, HI Pukuilua Gulch near Hana, Maui, HI Kawaipapa Gulch at Hana, Maui, HI Hanawi Stream near Nahiku, Maui, HI Honopou Stream near Huelo, Maui, HI Unnamed gulch at Maliko Bay, Maui, HI Kalialinui Gulch tributary near Pukalani, Maui, HI Kalialinui Gulch near Kahului, Maui, HI lao Stream at Kepaniwai Park near Wailuku, Maui, HI lao Stream at Wailuku, Maui, HI Waihee River at dam near Waihee, Maui, HI Unnamed gulch at Malunia Camp, Maui, HI Kahakuloa Stream near Honokohau, Maui, HI Honokohau Stream near Honokohau, Maui, HI 1.19 11.3 0.76 0.48 5.83 3.49 0.64 0.43 1.17 17.9 5.98 8.24 4.20 0.12 3.47 4.11 1963-93 1967-93 1963-93 1963-93 1965-93 1915-16, 1922-93 1911, 1913-14, 1916-93 1963-91 1967-93 1967-93 1984-93 1951-93 1984-93 1965-68, 1971-72, 1974-75, 1979-91 1940^3, 1948-71, 1975-93 1914-20, 1923-28, 1930-89, 1991-93 1989 1980 1982 1965 1982 1987 1916 1931 1979 1980 1971 1988 1951 1971 1988 1982 1988 1971 1988 1943 8.96 13.20 13.76 9.30 11.03 13.95 11.60 7.28 17.28 7.35 8.11 9.00 6.21 7.67 8.95 7.68 9.93 10.57 8.38 8.40 1,180 13,600 5,950 788 16,880 16,100 5,570 5,710 171 414 1,330 6,250 7,540 5,820 9,660 101 4,220 3,800 7,260 7,120 4/07/83 11/04/88 1/08/80 3/31/82 1/28/88 3/31/82 8/01/82 1/18/87 3/31/82 8/01/82 4/09/89 3/27/79 1/09/80 1/16/76 1/28/71 1/28/88 1/28/71 1/28/88 3/31/82 1/28/88 4/05/89 1/28/88 11/04/88 8.78 8.96 13.20 13.76 12.40 7.87 11.03 13.95 10.61 5.48 5.31 17.28 7.35 7.34 8.11 9.00 7.67 8.95 7.68 9.93 9.76 8.38 8.24 1,130 1,180 13,600 5,950 4,080 607 16,880 16,100 4,450 2,600 2,390 171 414 412 1,330 6,250 5,820 9,660 101 4,220 4,040 7,260 6,790 N N N N N N N N N N N N N N N N N N N N N N N 25 25 35 60 25 20 20 20 20 25 20 75 5 5 15 15 - 5 30 25 45 40 Significant Floods, 1970 Through 1989, Hawaii 199 Table 12. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Hawaii Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 33) Station name Total drainage area (mi2) Period of record Water year Stage («) Dis- charge (frVs) Significant floods during 1970-89 Date (month/ day/year) Stage (ft) Dis- charge (ftVs) Regu- lated during flood1 Recur- rence interval (years) Island of Maui Continued 16630200 16646200 16647500 16650500 16658500 16659000 16660000 16663500 16664000 Honokowai Stream at Honokowai, Maui, HI Olowalu Stream at Olowalu, Maui, HI Malalowaiaole Gulch near Maalaea, Maui, HI Waikapu Stream near Kihei, Maui, HI Waiakoa Gulch tributary near Waiakoa, Maui, HI Waiakoa Gulch at Kihei, Maui, HI Kulanihakoi Gulch near Kihei, Maui, HI Kamaole Gulch at Kamaole, Maui, HI Liilioholo Gulch at Kamaole, Maui, HI 5.59 4.08 0.64 6.97 0.98 10.1 14.4 4.28 4.12 1962-63, 1965-93 1962-93 1964-65, 1967-91, 1993 1963-88, 1990-93 1964-91, 1993 1963, 1967-72, 1974-76, 1978-91 1963-91 1980-91 1980-91 1982 1967 1980 1987 1971 1971 1971 1982 1982 11.00 5.40 12.95 8.28 8.23 9.66 9.40 9.01 13.73 4,520 1,300 350 1,130 409 1,560 4,460 291 526 8/01/82 2/10/79 1/28/71 1/10/80 12/25/83 2/10/79 5/05/87 1/28/71 1/28/71 1/28/71 3/17/82 2/11/82 11.00 5.28 5.28 12.95 7.85 7.80 8.28 8.23 9.66 9.40 9.01 13.73 4,520 1,230 1,230 350 1,080 1,080 1,130 409 1,560 4,460 291 526 N N N N N N N N N N N N 75-100 15 15 25 10 10 10 30 20 20 15 - Island of Hawaii 16700000 16704000 16713000 16717000 16720000 16725000 16758000 Waiakea Stream near Mountain View, Hawaii, HI Wailuku River at Piihonua, Hawaii, HI Wailuku River at Hilo, Hawaii, HI Honolii Stream near Papaikou, Hawaii, HI Kawainui Stream near Kamuela, Hawaii, HI Alakahi Stream near Kamuela, Hawaii, HI Waikoloa Stream at Marine Dam near Kamuela, Hawaii, HI 17.4 230 256 11.6 1.58 0.87 1.18 1931-90 1929-89 1977-89 1967-89 1964-89 1964-89 1948-89 1970 1931 1940 1988 1978 1980 1967 1980 1958 4.45 4.70 28.60 38.66 20.00 10.03 8.65 6.84 6.99 565 231 80,200 79,800 22,600 3,160 1,430 3,410 3,390 8/26/70 11/17/79 12/13/87 12/13/87 5/23/78 11/18/79 11/18/79 11/18/79 4.45 26.16 26.95 38.66 20.00 10.03 12.80 6.84 310 60,200 66,400 79,800 22,600 3,160 1,330 3,410 N N N N N N N N - -- - - - .. - Regulated during flood: N, no; Y, yes. 200 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Idaho Hydroclimatology Idaho is located in the Western Interior of the United States, and the State's topog- raphy is marked by several mountain ranges. The climate is controlled by general atmo- spheric circulation over the North Pacific Ocean. Sources of moisture are the North Pacific Ocean and the subtropical Pacific Ocean. Some moisture from the Gulf of Mex- ico arrives from the southeast during the summer monsoon season. The fall and winter are the wettest seasons in Idaho. The summers are typically dry with occasional thun- derstorms. Precipitation is dependent on topography, with mean annual precipitation ranging from 8 in. in the Snake River Plain to as much as 48 in. in the northern moun- tains (Paulson and others, 1991). On the basis of regionalization procedures that relate flood characteristics to water- shed and climatic characteristics, the magnitude of maximum discharges for streams in Idaho is dependent on drainage area, forest cover, latitude and longitude of the centroid of the basin, and area of lakes and ponds (Jennings and others, 1994). Significant Floods Idaho's largest flood during 1970-89 occurred in June 1986. Streamflow-gaging stations on the Cub River and several other tributaries of the Bear River recorded record floods. The maximum discharge of the Cub River near Preston (station 10093000, table 13) exceeded the 100-year recurrence interval. The discharge of the Bear River may have been the largest since 1907. Twenty-three percent of the streamflow-gaging stations recorded significant discharges during this flood. Nineteen percent of the streamflow-gaging stations in the State recorded significant discharges during the flood of June 1974. This flood was the largest of record for the entire Salmon River Basin. The maximum discharge on the Little Salmon River at Rig- gins (station 13316500, table 13) of 12,600 ft3/s was only slightly less than the maxi- mum discharge of the historical flood that occurred in June 1894. In June 1976, the failure of the Teton Dam caused unprecedented flooding on the Teton and Snake Rivers in eastern Idaho. The flood caused 11 deaths, $400 million in damages, and left 25,000 people homeless (Paulson and others, 1991). The flood of May and June 1984 caused significant discharges at 20 percent of the streamflow-gaging stations. Flooding was a result of rapid runoff from the melting of thick snowpack in eastern and central Idaho. The location of streamflow-gaging stations in Idaho that had significant floods for 1970-89 is shown in figure 34 by station number. The specific data for each significant flood are listed in table 13. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geo- logical Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geological Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, D.W, compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Idaho 201 .CANADA NEVADA Base from U.S. Geological Survey digital data, 1 '2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' Cub Riuerl 20 40 60 80 MILES 0 20 40 60 80 KILOMETERS EXPLANATION 13162500 & Streamflow-gaging station and number Figure 34. Location of streamflow-gaging stations with significant floods during 1970-89 for Idaho. 202 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 13. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Idaho "[mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. (Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 34) 10039500 10044000 10046000 10046500 10058600 10059500 10068500 10072800 10075000 10076400 10079500 10084500 10086500 10090800 10092700 10093000 10125500 10172970 12305500 12310800 12318500 12321500 12392100 12392300 Station name Bear River at Border, WY Bear River at Harer, ID Rainbow inlet canal near Dingle, ID Bear River below Stewart Dam near Montpelier, ID Bloomington Creek at Bloomington, ID Bear Lake outlet canal near Paris, ID Bear River at Pescadero, ID Eightmile Creek near Soda Springs, ID Bear River at Soda Springs, ID Soda Creek at Five mile Meadows near Soda Springs, ID Bear River at Alexander, ID Cottonwood Creek near Cleveland, ID Bear River below UPL Company tailrace at Oneida, ID Battle Creek tributary near Treasureton, ID Bear River at DD-UT State line Cub River near Preston, ID Malad River at Woodruff, ID Rock Creek near Holbrook, ID Boulder Creek near Leonia ID Trail Creek at Naples, ID Kootenai River near Copeland, ID Boundary Creek near Porthill, ID Trapper Creek near Clark Fork, ID Pack River near Colburn, Total drainage area (mi2) 2,486 2,839 0.01 2,853 24.0 0.01 3,705 22.6 3,972 51.7 4,099 61.7 4,456 4.50 4,881 31.6 472 44.0 56.0 16.1 13,400 97.0 1.12 124 Period of record 1938-39, 1941-68, 1970-94 1914-86 1977-89 1922-92 1961-86 1977-91 1922-54, 1969-94 1961-86 1896, 1944-49, 1951-94 1965-86 1911-12, 1914-94 1939-86 1922-76, 1978-94 1961-71, 1973-80 1971-94 1940-52, 1956-86 1939-82 1962-71, 1973-80 1929-71, 1974-80 1961-71, 1973-80 1925-92 1929-94 1962-81 1959-82 Water year 1983 1983 1986 1984 1980 1923 1971 1986 1971 1986 1980 1986 1971 1986 1896 1985 1965 1911 1966 1984 1922 1986 1980 1984 1986 1986 1962 1977 1974 1974 1948 1956 1968 1981 1974 Stage (ft) 9.69 11.73 7.42 5.52 4.47 4.66 19.27 7.09 2.80 8.40 2.43 4.01 4.67 4.34 9.00 14.10 9.20 19.19 3.95 8.93 31.20 8.16 21.80 70.10 71.78 6.00 21.86 16.38 Dis- charge (frVs) 4,880 5,140 4,800 4,950 2,950 3,050 754 249 248 3,080 1,690 4,280 3,240 310 6,a380 130 121 4,740 2,660 1,090 5,480 5,370 152 4,870 4,840 1,070 2,530 1,580 3,140 1,100 124,000 112,000 3,540 3,100 6,880 Significant floods during 1970-89 Date (month/ day/year) 6/07/83 5/31/84 6/14/86 6/09/83 5/26/84 6/13/86 5/27/84 6/03/83 6/05/86 6/11/71 6/00/86 6/21/86 6/23/71 6/06/86 7/07/83 6/00/86 4/10/85 4/14/76 6/25/86 5/16/75 5/15/84 6/13/84 12/05/84 6/13/86 8/15/80 6/14/84 6/18/82 6/04/86 1/14/80 6/20/77 1/16/74 1/16/74 5/18/72 4/29/80 12/26/80 1/16/74 Stage (ft) 9.69 9.51 -- .. - 11.73 .. - 4.47 4.66 .. - 2.80 - -- 2.43 2.08 4.01 4.34 8.45 9.00 14.10 9.20 2.80 3.95 8.78 31.20 8.16 21.80 5.79 21.86 16.38 Dis- charge (ft3/s) 4,880 4,430 4,180 5,140 4,820 4,800 4,950 1,050 249 3,080 4,280 310 4,130 4,460 130 121 4,170 788 1,090 4,790 5,090 5,370 152 4,870 840 1,070 2,330 1,580 3,140 1,100 57,300 3,270 3,100 6,880 Regu- lated during flood1 Y Y Y Y Y Y Y Y N Y Y N Y Y N Y Y N N Y Y Y N Y N N Y N N N Y N N N Recur- rence interval (years) >50 >25 10-25 >25 10-25 10-25 - >25 10-25 .. 25-50 50-100 25-50 25-50 10 5-10 10-25 10-25 50-100 >25 25-50 >50 10-25 10-25 >100 50-100 50-100 - >25 - >100 IA Significant Floods, 1970 Through 1989, Idaho 203 Table 13. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Idaho Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 34) 12393600 12413100 12413200 12415100 12415200 12416000 12419000 13038900 13050800 13062500 13062700 13063000 13066000 13068500 13069500 13073000 13075000 13075500 13075600 13075983 13078000 13082500 13083000 Station name Binarch Creek near Coolin, ID Boulder Creek at Mullan, ID Montgomery Creek near Kellogg, ID Cherry Creek near St. Maries, ID Plummer Creek tributarty at Plummer, ID Hayden Creek below North Fork near Hayden Lake, ID Spokane River near Post Falls, ID Targhee Creek near Macks Inn, ID Moose Creek near Victor, ID Snake River at Blackfoot, ID Angus Creek near Henry, ID Blackfoot River above reservoir near Henry, ID Blackfoot River near Shelley, ID Blackfoot River and bypass channel near Blackfoot, ID Snake River near Blackfoot, ID Portneuf River at Topaz, ID Marsh Creek near McCammon, ID Portneuf River at Pocatello, ID North Fork Pocatello Creek near Pocatello, ID Spring Creek at Sheepskin Road near Fort Hall, ID Raft River above Onemile Creek near Malta, ID Goose Creek above Trapper Creek near Oakley, ID Trapper Creek near Oakley, ID Total drainage area (mi2) 10.7 3.13 4.53 7.07 2.10 22.0 3,840 20.8 21.4 9,950 13.9 350 909 1,295 11,310 570 353 1,250 14.0 - 412 633 53.7 Period of record 1962-71, 1973-81 1961-71, 1973-80 1962-71 1961-71, 1974 1961-81 1948-53, 1959, 1962-94 1913-94 1963-80 1962-71 1978-94 1963-71, 1974-80 1914-25, 1968-82 1903-31, 1933^15, 1947-51, 1976-94 1913-94 1911-94 1913-14, 1920-76, 1978-94 1955-94 1897-99, 1912-16, 1918-76, 1978-94 1961-71 1980-94 1947-53, 1955-71, 1985-94 1912-16, 1919-94 1911-16, 1919-30, 1932-94 Water year 1974 1973 1974 1971 1971 1974 1978 1974 1982 1934 1917 1970 1967 1971 1984 1976 1974 1976 1987 1974 1962 1976 1962 1963 1962 1962 1984 1971 1985 1994 1971 1986 1962 1941 1993 Stage (ft) 13.19 14.23 13.60 16.08 5.95 11.43 10.63 11.13 5.69 - 79.23 9.57 9.64 11.74 10.18 13.88 8.60 8.68 9.10 .. 7.68 15.44 7.83 8.22 13.25 11.35 13.85 9.10 4.88 4.95 5.51 6.61 9.30 6.99 7.51 Dis- charge (ft3/s) 158 40 220 114 155 317 165 150 1,280 50,100 39,800 458 285 390 28,600 1,060 2,150 2,120 3,220 2,130 1,710 53,500 6,140 7,120 1,120 2,990 2,870 57 530 397 2,060 316 3,240 270 57 Significant floods during 1970-89 Date (month/ day/year) 1/15/74 6/03/74 1/31/71 1/16/74 2/14/77 2/21/82 1/19/74 5/23/70 6/23/71 5/18/84 5/11/76 4/26/74 5/17/76 5/15/84 5/16/87 5/05/74 5/21/75 5/07/83 6/12/84 6/07/76 5/21/84 1/15/80 5/31/83 5/17/84 3/13/71 4/01/85 1/17/71 1/18/71 5/15/84 5/15/84 Stage (ft) 13.19 13.60 5.95 11.43 10.63 5.69 25.66 9.57 11.74 10.18 13.88 8.60 8.14 8.59 9.10 - - -- 15.44 5.42 11.98 11.19 13.85 9.10 4.88 5.51 8.07 7.29 6.66 Dis- charge (ft3/s) 158 220 155 317 165 1,280 46,200 458 390 28,600 1,060 2,150 2,030 2,080 3,220 2,130 2,110 2,060 2,060 53,500 1,350 856 1,990 2,870 57 530 2,060 2,280 1,590 176 Regu- lated during flood1 N N N N N N Y N N Y N Y Y Y Y Y Y Y Y Y Y Y Y Y N N N Y Y Y Recur- rence interval (years) - - - -- -- 25-50 35-45 - - 5-10 10-20 10-25 10-25 >100 50-100 75-85 70-80 70-80 >100 10-25 30-35 20-25 50-100 - >100 80-90 35-40 40^15 204 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 13. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Idaho Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 34) 13090000 13092000 13094000 13113000 13118700 13120500 13127000 13128900 13132500 13135000 13135800 13139500 13141000 13142500 13148500 13150430 13153500 13159800 13162500 13168500 13171620 13172200 13172666 Station name Snake River near Kimberly, ID Rock Creek near Rock Creek, ID Snake River near Buhl, ID Beaver Creek at Spencer, ID Little Lost River below Wet Creek near Howe, ID Big Lost River at Howell Ranch near Chilly, ID Big Lost River below MacKay Reservoir near MacKay, ID Lower Cedar Creek above diversion near MacKay, ID Big Lost River near Arco, ID Snake River below Lower Salmon Falls near Hagerman, ID Adams Gulch near Ketchum, ID Big Wood River at Hailey, ID Big Wood River near Bellevue, ED Big Wood River below Magic Dam near Richfield, ID Little Wood River near Carey, ID Silver Creek at Sportsman Access near Picabo, ID Malad River near Bliss, ID Canyon Creek at Oregon Trail crossing near Mountain Home, ID East Fork Jarbidge River near Three Creek, ID Bruneau River near Hot Spring, ID Snake River below CJ Strike Dam near Grand View, ID Fossil Creek near Oreana, ED West Fork Reynolds Creek Total drainage area (mi2) - 80.0 -- 120 440 450 813 8.26 1,410 - 10.9 640 824 1,600 312 70.0 - - 84.6 2,630 40,800 19.70 0.20 Period of record 1924-94 1910-13, 1939, 1944-74 1947-94 1941-52, 1969-82, 1985-93 1961-94 1904-14, 1920-94 1904-06, 1912-14, 1919-94 1963-73, 1980-84 1947-60, 1965-94 1938-94 1962-71 1915-94 1912-94 1911-94 1927-94 1975-94 1899, 1985-94 1984-94 1929-32, 1954-71 1910-14, 1944-94 1985-94 1961-71, 1974-76, 1978-80 1965-78 Water year 1927 1965 1964 1970 1984 1975 1975 1966 1967 1921 1986 1982 1967 1967 1964 1984 1971 1983 1983 1986 1952 1982 1985 1986 1899 1986 1971 1984 1986 1979 1965 1975 Stage (ft) - 17.32 19.65 3.81 11.90 9.84 3.19 3.90 6.02 5.79 6.08 3.10 3.14 7.68 15.73 16.29 3.29 7.93 7.61 8.48 15.68 16.74 8.82 4.00 5.09 6.33 13.03 12.80 7.95 16.88 - Dis- charge (tf/s) 27,200 15,800 21,800 461 25,300 1,190 509 123 4,420 2,990 2,990 310 194 1,890 31,200 30,700 124 6,150 5,310 4,610 10,000 20,000 566 4,150 3,620 1,420 798 6,860 34,400 2,860 195 143 Significant floods during 1970-89 Date (month/ day/year) 5/12/83 6/14/84 5/19/70 6/14/84 5/18/75 6/16/75 6/11/83 6/04/86 6/17/74 6/06/86 6/22/82 6/09/86 4/27/71 6/13/84 5/13/71 6/16/74 5/30/83 5/30/86 5/30/83 6/04/86 5/31/83 4/16/84 4/24/82 4/06/76 2/18/86 2/23/86 6/22/71 5/15/84 2/19/86 8/13/79 6/02/75 Stage (ft) 19.27 19.70 3.81 11.90 9.84 3.19 5.52 5.48 5.93 6.08 3.10 7.26 15.58 16.29 3.29 7.20 7.93 6.82 7.61 8.48 10.69 10.07 16.74 8.35 .. 5.09 6.33 13.03 12.80 7.95 - Dis- charge (ft3/s) 23,800 25,600 461 25,300 1,190 509 3,720 3,860 2,790 2,990 310 1,860 30,400 30,700 124 4,970 6,150 5,300 5,310 4,610 6,760 5,870 20,000 502 4,150 1,420 798 6,860 34,400 2,860 14.3 Regu- lated during flood1 Y Y N Y Y Y Y Y Y Y N Y Y Y N Y Y Y Y Y Y Y Y N Y Y N Y Y N N Recur- rence interval (years) 10-15 20-25 15-20 >25 >100 20-25 15-20 20-25 20-25 35-40 25-50 15-20 15-20 15-20 .. 15-20 50-60 20-25 70-80 30-35 20-25 15-20 >100 5-10 - - 10-25 >50 - - near Reynolds, ED Significant Floods, 1970 Through 1989, Idaho 205 Table 13. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Idaho Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 34) 13184800 13185000 13186000 13190500 13202000 13210300 13211309 13213000 13234300 13235000 13235100 13236500 13238300 13239000 13240000 13245400 13247500 13250600 13251300 13254500 13258500 13265500 13266000 Station name Beaver Creek near Lowman, ID Boise River near Twin Springs, ID South Fork Boise River near Featherville, ID South Fork Boise River at Anderson Ranch Dam, ID Boise River near Boise, ID Bryans Run near Boise, ID Indian Creek above wastewater plant near Nampa, ID Boise River near Parma, ID Fivemile Creek near Lowman, ID South Fork Payette River at Lowman, ID Rock Creek at Lowman, ID Deadwood River below Deadwood Reservior near Lowman, ID Deep Creek near McCall, ID North Fork Payette River at McCall, ID Lake Fork Payette River above Jumbo Creek near McCall, ID Tripod Creek at Smiths Ferry, ID Payette River near Horseshoe Bend, ID Big Willow Creek near Emmett, ID West Branch Weiser River near Tamarack, ID Lost Creek near Tamarack, ID Weiser River near Cambridge, ID Crane Creek at mouth near Weiser, ID Weiser River near Weiser, ID Total drainage area (mi2) 9.30 830 635 982 2,680 7.94 - 3,970 7.80 456 14.6 112 4.38 144 48.9 8.63 2,230 47.4 3.96 29.4 605 288 1,460 Period of record 1962-71 1871-72, 1911-94 1943, 1945-94 1943-94 1895-1916, 1955-94 1961-76, 1978-80 1982-94 1972-94 1962-71, 1973-80 1941-94 1962-71 1927-94 1962-71 1909-17, 1920-94 1946-94 1962-71, 1973-80 1906-16, 1920-94 1957, 1962-82 1960-77 1910-13, 1921, 1924-25, 1927-69, 1980-82 1939-94 1921-73, 1981-82 1890-91, 1895-1904, 1911-14, 1953-94 Water year 1971 1872 1965 1983 1956 1956 1986 1896 1978 1971 1986 1991 1983 1977 1974 1971 1969 1953 1983 1970 1974 1971 1948 1980 1965 1982 1971 1975 1921 1956 1982 1982 1993 1974 Stage («) 9.66 12.20 7.87 8.62 10.56 10.77 - 11.66 2.52 2.98 13.83 21.68 8.36 1.89 1.96 6.56 9.09 16.07 8.16 9.15 9.19 6.95 16.35 8.70 4.56 4.64 4.29 12.83 7.30 11.96 14.60 Dis- charge (ft3/s) 195 22,700 18,800 7,960 7,580 9,850 9,530 35,500 7,240 420 174 74 9,240 600 8,980 . 400 270 2,580 2,440 540 4,950 2,770 2,600 185 27,000 2,570 87 83 688 10,100 8,400 4,800 21,700 13,400 Significant floods during 1970-89 Date (month/ day/year) 5/4/71 5/30/83 5/30/83 6/01/86 6/13/83 1/16/71 4/12/86 6/14/83 6/07/77 6/11/72 6/16/74 6/01/86 5/13/71 6/01/83 6/26/71 6/19/74 3/01/86 6/26/71 6/16/74 4/24/80 6/27/71 2/16/82 5/04/71 4/29/80 1/17/74 1/27/70 2/17/82 2/22/82 Stage (ft) 9.66 10.20 7.87 10.77 - 11.66 2.52 13.83 21.68 7.49 8.36 7.58 1.89 9.09 16.02 8.16 7.37 9.15 8.96 6.95 14.43 8.70 4.56 3.90 9.57 6.24 7.30 12.04 Dis- charge (ft3/s) 195 11,200 7,960 9,530 13,200 420 174 9,240 600 7,190 8,980 7,290 400 2,440 540 4,950 4,040 2,770 2,710 185 20,400 2,570 87 671 8,410 3,000 4,800 21,000 Regu- lated during flood1 N N N Y Y N Y Y N N N N N Y N Y Y Y Y N Y N N Y Y Y Y Y Recur- rence interval (years) - 10 10-30 40-45 <2 - 5-10 20-25 >100 10-25 _ 25 - >100 10-15 >100 >100 >10 25-50 10-25 10-25 10-15 - -- 60-70 206 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 13. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Idaho Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 34) 13267100 13269000 13289960 13295000 13295500 13296000 13296500 13297330 13297350 13297355 13297450 13298500 13301700 13302500 13305000 13305700 13305800 13306500 13307000 13308500 13311000 13313000 13316500 13317000 Station name Deer Creek near Midvale, ID Snake River at Weiser, ED Wildhorse River at Brownlee Dam, ED Valley Creek at Stanley, ED Salmon River below Valley Creek at Stanley, ED Yankee Fork Salmon River near Clayton, ED Salmon River below Yankee Fork near Clayton, ED Thompson Creek near Clayton, ED Bruno Creek near Clayton, ED Squaw Creek below Bruno Creek near Clayton, ED Little Boulder Creek near Clayton, ED Salmon River near Challis, ED Morse Creek above diversion near May, ED Salmon River at Salmon, ED Lemhi River near Lemhi, ED Dahlonega Creek at Gibbonsville, ED Hughes Creek near North Fork, ID Panther Creek near Shoup, ED Salmon River near Shoup, ED Middle Fork Salmon River near Capehorn, ED East Fork of South Fork Salmon River at Stibnite, ED Johnson Creek at Yellow Pine, ED Little Salmon River at Riggins, ED Salmon River at White Bird, ED Total drainage area (mi2) 4.60 69,200 111 147 501 195 802 29.1 6.29 79.0 18.4 1,800 18.0 3,760 895 32.0 15.7 529 6,270 138 19.6 213 576 13,550 Period of record 1962-71 1910-94 1979-94 1911-13, 1921-72, 1974, 1993-94 1926-60, 1974 1921-48, 1974 1922-91 1973-94 1971-94 1973-94 1970-86 1929-41, 1943-76 1962-71, 1973-76, 1978-80 1912-16, 1920-94 1956-94 1962-71 1962-80 1945-77 1945-81 1929-72, 1974 1929-42, 1983-94 1929-94 1948, 1951-54, 1957-94 1894, 1911-17, 1920-94 Water year 1970 1910 1952 1986 1983 1956 1921 1974 1974 1974 1974 1982 1972 1986 1986 1973 1972 1974 1978 1975 1974 1984 1971 1974 1976 1974 1974 1974 1986 1974 1974 1974 1971 Stage (ft) 16.50 .. 14.67 9.07 9.12 3.92 4.40 4.95 11.50 11.86 5.61 5.74 2.45 3.21 6.31 7.09 5.84 11.40 5.49 6.49 8.67 7.19 3.73 3.74 6.20 5.95 13.13 7.00 7.11 8.32 11.05 35.81 39.90 Dis- charge (ft3/s) 156 120,000 84,500 3,590 2,290 2,000 1,850 5,650 4,900 10,500 332 329 42 22 755 266 570 17,300 275 270 17,700 2,430 235 250 -- 3,050 25,700 3,320 394 6,230 12,600 130,000 90,000 Significant floods during 1970-89 Date (month/ day/year) 1/27/70 4/20/84 3/08/86 6/26/71 6/17/74 6/17/74 6/08/72 6/17/74 6/01/86 6/16/74 5/31/72 5/29/86 6/01/72 6/17/74 6/09/78 6/08/72 6/17/74 7/06/75 6/21/84 5/13/71 1/16/74 5/31/71 6/16/74 6/18/74 6/17/74 5/31/86 6/17/74 6/17/74 6/17/74 Stage (ft) 16.50 13.66 9.07 3.62 4.95 11.50 10.59 11.86 10.55 5.61 2.45 6.31 5.84 11.40 5.49 7.77 8.67 6.72 7.19 3.73 3.74 5.86 5.95 13.13 7.00 7.11 8.32 11.05 35.81 Dis- charge (ft3/s) 156 80,000 3,590 1,650 5,650 4,900 8,740 10,500 8,540 332 42 755 570 17,300 275 16,200 17,700 1,990 2,430 235 250 3,030 3,050 25,700 3,320 394 6,230 12,600 130,000 Regu- lated during flood1 N Y N N N N N N N N N N N Y N N N Y Y N N N N N N N Y Y N Recur- rence interval (years) - 15-20 30-40 15-20 40-50 >100 15-20 60-70 15-20 10-20 10-20 10-25 25-50 >100 20-25 30-35 15-20 >50 - 10-15 10-15 35-40 >100 25-50 >100 >100 50-100 Significant Floods, 1970 Through 1989, Idaho 207 Table 13. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Idaho Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 34) 13342450 13344800 13345000 Station name Lapwai Creek near Lapwai, ID Deep Creek near Potlatch, ID Palouse River near Potlatch, ID Total drainage area (mi2) 235 36.6 317 Period of record 1975-94 1961-71, 1974-81 1915-19, 1967-94 Water year 1986 1974 1974 Stage («) 10.22 16.22 21.08 Dis- charge (ft3/s) 3,380 2,330 10,100 Significant floods during 1970-89 Date (month/ day/year) 2/23/86 1/16/74 1/16/74 2/19/82 Stage (ft) 10.22 16.22 21.08 18.32 Dis- charge («3/s) 3,380 2,330 10,100 6,760 Regu- lated during flood1 N N N N Recur- rence interval (years) 25-30 -- 75-85 10-15 Regulated during flood: N, no; Y, yes. 208 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Illinois Hydroclimatology Illinois is located in the midcontinent interior and is affected by various weather patterns during the year. Moisture sources include the Gulf of Mexico, the Pacific Ocean, and, to a small degree, Lake Michigan. Frontal systems are quite active in Illi- nois as warm humid airmasses from the Gulf of Mexico are displaced by continental polar air from Canada or maritime polar air from the North Pacific Ocean. Winter storms usually become stronger as they cross the State and intensify as a result of tem- perature differences across the polar front. Mean annual precipitation ranges from 35 in. in the north to 46 in. in the south. Areas within 10 to 20 mi of Lake Michigan are affected by lake-effect snowfall in the winter and have greater annual values of precipi- tation. During the winter, floods can be caused by ice jams that force localized flooding. Thunderstorms associated with frontal systems and squall lines are responsible for flash flooding in the State during the summer months. Rainfall rates of 16 in. in 12 hours have been recorded from these systems. Persistent upper atmospheric patterns can result in repeating storm systems that can lead to regional flooding. On the basis of regionalization procedures that relate flood characteristics to water- shed and climatic characteristics, the magnitude of maximum discharges for streams in Illinois is dependent on drainage area, main-channel slope, and 2-year, 24-hour rainfall (Jennings and others, 1994). Significant Floods Twenty percent of the streamflow-gaging stations in the State recorded significant discharges during the flood of December 1982. Rainfall in the Illinois River Basin total- ing 3 to 5 in. on wet soil caused the flooding. This flood was responsible for eight deaths. During February to March 1985, excessive rain on snow in northern Illinois caused $10 million in damages. From September 20 to October 3,1986, excessive rains in northern Illinois resulted in four deaths and $50 million in damages. Parts of Chicago were inundated by as much as 9.4 in. of rain on August 13 and 14,1987, that resulted in four deaths and $77.6 million in damages (Paulson and others, 1991). The location of streamflow-gaging stations in Illinois that had significant floods for 1970-89 is shown in figure 35 by station number. The specific data for each significant flood are listed in table 14. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geo- logical Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geological Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W, Chase, E.B., Roberts, R.S., and Moody, D.W, compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Illinois 209 WISCONSIN 8f 15438300 05548280 0543750bV^l6 05438390" f-05435000 05440000* 305439550 G S > 05439500} 05527800 05527840 LAKE MICHIGAN Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 60 MILES 0 20 40 60 KILOMETERS EXPLANATION Streamflow-gaging station and number Figure 35. Location of streamflow-gaging stations with significant floods during 1970-89 for Illinois. 210 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Inset A Chicago 88°30' 15' 87°45' 42°15' 41°45' LAKE MICHIGAN Base from U.S. Geological Survey digital data, 1:100,000,1994 Universal Transverse Mercator projection Zone 16 Converted to Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 10 15 MILES 10 15 KILOMETERS EXPLANATION 3 Streamflow-gaging station and number Figure 35. Location of streamflow-gaging stations with significant floods during 1970-89 for Illinois Continued. Significant Floods, 1970 Through 1989, Illinois 211 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 03337000 03338000 03338100 03338800 03341900 03343400 03344000 03344250 03344425 03344500 03378000 03378635 03378650 03378980 03380450 03380500 03381600 03382100 03382170 03382510 03384450 03385000 03386500 Station name Boneyard Creek at Urbana, IL Salt Fork near Homer, IL Salt Fork tributary near Catlin, IL North Fork Vermilion River tributary near Danville, IL Raccoon Creek tributary near Annapolis, IL Embarras River near Camargo, IL Embarras River near Diona, IL Embarras River tributary near Greenup, EL Muddy Creek tributary at Woodbury, IL Range Creek near Casey, IL Bonpas Creek at Browns, IL Little Wabash River near Effingham, EL Second Creek tributary at Keptown, EL Little Wabash River tributary at Clay City, EL White Feather Creek near Marlow, DL Skillet Fork at Wayne City, IL Little Wabash River tributary near New Haven, IL South Fork Saline River near Carrier Mills, IL Brushy Creek near Harco, EL Eagle Creek near Equality, EL Lusk Creek near Eddyville, IL Hayes Creek at Glendale, IL Sugar Creek near Dixon Total drainage area (mi2) 4.46 340 2.20 1.31 0.04 186 919 0.08 0.07 7.61 228 240 1.62 0.43 0.43 464 0.16 147 13.3 8.51 42.9 19.1 9.93 Period of record 1948-96 1939, 1945-73, 1975-82 1959-80 1956-76 1956-80 1961-96 1939-40, 1943, 1945-47, 1971-92 1956-80 1959-76 1951-91 1941-96 1967-96 1956-72 1959-80 1956-80 1909-12, 1915-21, 1929-96 1960-76 1966-96 1969-82 1967-82 1968-96 1950-95 1950-81 Water year 1979 1993 1964 1939 1980 1974 1974 1958 1994 1985 1974 1974 1961 1961 1996 1970 1971 1975 1990 1961 1974 1982 1977 1973 1985 1985 1973 Stage (ft) 8.94 9.93 15.69 18.60 15.00 26.29 16.84 17.86 17.33 22.90 12.83 16.55 12.50 26.04 21.19 20.86 18.82 15.01 25.75 25.80 18.18 16.32 14.78 11.25 27.78 19.14 9.68 Dis- charge (ft3/s) 982 905 10,100 640 1,600 48 43 8,040 20,400 68 112 3,500 7,500 17,800 930 409 323 59,400 51,000 484 5,160 2,590 668 16,100 9,450 6,290 Significant floods during 1970-89 Date (month/ day/year) 7/30/79 3/04/79 6/02/80 5/19/74 9/29/74 6/23/74 3/04/79 2/24/85 5/15/74 9/29/74 9/14/89 5/03/83 4/20/70 6/16/70 6/19/71 4/24/75 11/20/85 8/03/74 1/31/82 3/28/77 5/27/73 8/24/85 5/27/73 8/24/85 5/27/73 Stage («) 8.94 15.48 15.00 26.29 16.84 16.72 16.38 22.90 12.83 16.55 12.14 23.43 19.95 20.86 18.82 15.01 24.60 18.18 16.32 14.78 11.25 27.78 17.33 19.14 9.68 Dis- charge (tf/s) 982 9,200 640 1,600 48 6,230 6,240 20,400 68 112 2,990 6,040 10,300 930 409 323 32,900 484 5,160 2,590 668 16,100 6,400 9,450 6,290 Regu- lated during flood1 Y N N N N N N N N N N N Y N N N N N N N N N N N Y Recur- rence interval (years) 25-50 -- 10-25 10-25 10-25 -- -- 20-25 20-25 10-20 - - 30-35 -- 30-40 >50 10-25 >100 30-40 >100 - Springs, IL 212 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 14. Maximum stage and discharge for period of record for strearnflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 03611500 05418750 05435000 05435650 05437500 05437600 05437950 05438250 05438300 05438390 05439000 05439500 05439550 05440000 05440650 05441000 05443500 05444000 05446500 05447000 05447200 05447500 05448000 05448050 05466000 Station name Ohio River at Metropolis, IL South Fork Apple River near Nora, IL Cedar Creek near Winslow, IL Lost Creek tributary near Shannon, IL Rock River at Rockton, IL Rock River tributary near Rockton, IL Kishwaukee River near Huntley, IL Coon Creek at Riley, IL Lawrence Creek tributary near Harvard, IL Piscasaw Creek below Mokeler Creek near Capron, IL South Branch Kishwaukee River at Dekalb, IL South Branch Kishwaukee River near Fairdale, IL South Branch Kishwaukee River tributary near Irene, IL Kishwaukee River near Perryville, IL Stillman Creek tributary near Holcomb, IL Leaf River at Leaf River, IL Rock River at Como, IL Elkhorn Creek near Penrose, IL Rock River near Joslin, IL Green River at Amboy, IL Normandy Ditch at Normandy, IL Green River near Geneseo, IL Mill Creek at Milan, IL Sand Creek near Milan, IL Edwards River near Orion, IL Total drainage area (mi2) 203,000 1.93 1.31 1.95 6,363 2.21 14.4 85.1 0.84 88.1 77.7 387 1.71 1,099 1.00 103 8,753 146 9,549 201 5.23 1,003 62.4 0.22 155 Period of record 1913, 1928-96 1961-80 1952-76 1961-76 1904-08, 1915-19, 1937, 1940-96 1961-76 1965-78 1962-91 1961-80 1970-79 1926-33, 1980-96 1937, 1940-96 1959-76 1938, 1940-96 1959-76 1938, 1940-82 1915-76, 1978-86, 1990-96 1938, 1940-96 1940-96 1940-76, 1978-82 1956-71 1936-96 1936, 1940-86, 1990-96 1956-80 1924, 1941-96 Water year 1937 1937 1974 1974 1974 1916 1975 1974 1972 1978 1972 1973 1983 1996 1971 1996 1938 1971 1972 1938 1973 1938 1974 1938 1993 1981 1955 1971 1965 1974 1969 1973 1980 1951 1924 Stage (ft) 66.60 17.93 6.02 16.92 15.54 15.77 3.07 9.73 14.07 4.47 15.80 13.37 15.63 23.54 23.85 15.92 15.07 15.90 15.66 17.51 16.53 19.60 18.35 11.79 12.26 13.53 14.36 16.75 18.59 12.65 22.20 13.41 20.20 Dis- charge (ftVs) 1,850,000 520 698 660 32,500 30,000 308 192 5,090 180 4,000 3,500 25,400 452 24,200 297 7,950 59,700 6,770 46,500 7,600 6,120 114 90 12,100 8,000 9,300 168 8,910 Significant floods during 1970-89 Date (month/ day/year) 4/01/75 4/29/74 6/21/74 4/29/74 3/25/75 6/08/74 9/18/72 4/22/73 7/02/78 4/21/72 4/22/73 7/02/83 4/22/73 3/19/79 3/14/71 3/21/79 3/18/71 9/13/72 4/22/73 4/21/73 8/25/72 4/21/73 5/17/74 3/22/79 6/13/81 3/15/71 4/22/73 6/22/74 3/19/79 4/22/73 5/29/80 6/23/74 8/15/81 Stage (ft) 58.63 17.93 6.02 16.92 15.54 15.77 3.07 8.46 9.73 14.07 4.47 15.80 10.22 10.45 15.63 20.48 15.92 15.07 14.90 15.66 15.94 15.74 16.53 17.81 11.79 13.53 16.00 16.75 14.19 12.65 22.20 15.52 15.44 Dis- charge 1,190,000 520 698 660 30,000 308 192 3,020 5,090 180 4,000 3,500 8,460 7,600 452 16,700 297 7,950 7,600 59,700 6,360 6,220 6,770 41,600 7,600 114 10,900 12,100 12,000 9,300 168 5,760 5,510 Regu- lated during flood1 Y N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 10-15 -- 15-25 -- 30-35 -- 10-20 >100 -- >100 10-15 5-10 " 15 15-25 15-25 >100 25-30 20-25 40-45 10-15 >100 -- 20-25 50 45-50 35-40 -- 15-20 10-15 Significant Floods, 1970 Through 1989, Illinois 213 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 05466500 05467000 05467500 05468500 05469000 05469500 05495500 05502020 05502040 05513000 05520000 05520500 05526000 05526500 05527500 05527800 05527840 05528000 05528170 05528200 05528360 05528400 05528440 05528470 Station name Edwards River near New Boston, IL Pope Creek near Keithsburg, IL Henderson Creek near Little York, IL Cedar Creek at Little York, IL Henderson Creek near Oquawka, IL South Henderson Creek at Biggsville, IL Bear Creek near Marcelline, IL Hadley Creek near Barry, IL Hadley Creek at Kinderhook, IL Bay Creek at Nebo, IL Singleton Ditch at Dlinoi, IL Kankakee River at Momence, IL Iroquois River near Chebanse, IL Terry Creek near Custer Park, IL Kankakee River near Wilrnington, IL Des Plaines River at Russell, IL Des Plaines River at Wadsworth, IL Des Plaines River near Gurnee, IL Diamond Lake drain at Mundelein, IL Hawthorn drainage ditch near Mundelein, IL Aptakisic Creek at Aptakisic, IL Des Plaines River at Wheeling, IL Buffalo Creek near Lake Zurich, IL Buffalo Creek at Long Total drainage area (mi2) 445 174 151 132 432 82.9 349 40.9 72.7 148 220 2,294 2,091 12.1 5,150 123 145 232 2.57 5.88 2.85 325 1.03 7.88 Period of record 1935-96 1935-86, 1991-96 1924, 1941-58, 1960-82 1924, 1941-78, 1980-96 1924, 1935-96 1924, 1940-76, 1978-82 1944-96 1956-90, 1992-93 1939-81, 1983-86 1916, 1940-86 1945-77 1915-96 1913, 1924-96 1950-75 1883, 1887, 1915-96 1960-66, 1968-96 1962-76 1946-58, 1960-96 1961-76 1961-76 1961-76 1962-63, 1967, 1969-70, 1972-77 1961-76 1961-76 Water year 1973 1973 1993 1982 1924 1993 1982 1993 1982 1973 1985 1996 1973 1944 1939 1946 1976 1979 1913 1979 1970 1957 1957 1883 1979 1976 1976 1986 1971 1970 1972 1970 1972 1972 Stage (ft) 23.33 27.88 29.08 19.78 23.20 18.76 31.05 32.65 20.51 28.38 15.31 15.91 17.93 19.31 10.51 10.51 21.60 21.68 9.32 11.15 11.40 16.73 9.69 10.75 5.32 11.95 3.53 3.58 1.09 4.14 2.21 3.03 Dis- charge (ft3/s) 18,000 8,900 7,270 23,400 18,100 34,600 30,800 10,500 9,100 29,500 35,500 9,000 15,000 23,500 3,610 16,000 34,000 27,000 1,710 545 75,900 2,120 1,990 2,170 3,530 110 543 390 3,240 203 539 Significant floods during 1970-89 Date (month/ day/year) 4/22/73 4/22/73 7/07/82 7/07/82 7/07/82 3/04/85 7/08/82 4/21/73 7/07/82 3/04/85 4/21/73 4/11/79 5/01/83 4/11/79 1/10/75 3/05/76 3/05/76 3/06/79 3/20/82 3/07/79 5/14/70 5/15/70 12/03/82 3/06/76 3/21/79 3/06/76 9/27/86 2/19/71 6/02/70 6/20/72 6/03/70 8/25/72 8/25/72 Stage (ft) 23.33 27.88 28.36 19.78 17.34 16.87 31.05 20.51 28.38 15.31 12.89 12.95 17.75 10.06 10.51 6.44 10.51 6.03 21.68 9.32 9.40 8.53 10.75 9.69 5.32 11.95 3.53 3.58 1.09 4.14 2.21 3.03 Regu- Dis- lated charge during (ftS/s) flood1 18,000 8,900 7,200 23,400 12,600 8,380 34,600 9,100 10,500 29,500 9,000 9,000 13,600 18,400 2,150 3,610 11,900 16,000 11,000 27,000 1,710 54,500 62,700 1,990 2,120 2,170 3,530 110 543 390 3,240 203 539 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) >100 >100 45-50 >100 40-50 15-20 >100 50-75 75-100 50-75 25 25 10-20 15-25 5-10 >100 40-50 >100 20-25 30-35 >100 20-25 40-50 15-25 15-25 -- 75-100 -- - - -- -- Grove, IL 214 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 05528500 05529000 05529500 05529900 05530400 05530700 05530940 05530990 05531000 05531050 05531080 05531100 05531130 05531200 05531300 05531380 05531500 05532000 05532500 05533000 05533200 05534500 05534600 05534900 05535000 Station name Buffalo Creek near Wheeling, IL Des Plaines River near Des Plaines, IL McDonald Creek near Mount Prospect, IL Weller Creek at Mount Prospect, IL Higgins Creek near Mount Prospect, IL Silver Creek at Melrose Park, IL Salt Creek at Palatine, IL Salt Creek at Rolling Meadows, IL Salt Creek near Arlington Heights, IL Salt Creek near Wood Dale, IL Spring Brook at Bloomingdale, IL Meacham Creek at Medinah, IL Spring Brook at Walnut Avenue at Itasca, IL Salt Creek at Addison, IL Salt Creek at Elmhurst, IL Salt Creek at Oak Brook, IL Salt Creek at Western Springs, IL Addison Creek at Bellwood, IL Des Plaines River at Riverside, IL Flag Creek near Willow Springs, IL Sawmill Creek tributary near Tiedtville, IL North Branch Chicago River at Deerfield, IL North Branch Chicago River at Northfield, IL Skokie River at Lake Bluff, EL Skokie River at Lake Forest, IL Total drainage area (mi2) 19.6 360 7.93 9.02 2.24 11.2 6.26 30.5 32.1 53.6 5.63 3.94 14.2 83.7 91.2 101 115 17.9 630 16.5 2.33 19.7 23.8 8.17 13.0 Period of record 1953-96 1938, 1941-96 1953-96 1961-77, 1979 1961-79 1955, 1961-80 1961-76, 1978-80 1974-96 1951-76 1955, 1957, 1960-79 1961-79 1956-72, 1978-79 1961-76, 1978-79 1948, 1950, 1955,1957, 1960-76 1948, 1950, 1955,1957, 1960-80, 1989-96 1948, 1950, 1955, 1957, 1960-76 1946-96 1952-96 1914-96 1951-96 1961-77, 1979 1953-96 1960-76, 1978-80 1962-76 1952-96 Water year 1982 1938 1987 1987 1972 1972 1972 1972 1987 1967 1979 1972 1972 1972 1972 1972 1989 1972 1987 1987 1987 1961 1976 1987 1976 1978 1976 1986 1982 Stage (ft) 7.94 9.00 10.88 8.08 7.21 3.60 3.57 3.27 14.03 10.15 5.19 6.57 13.35 3.57 7.62 7.27 13.56 4.48 10.54 12.84 9.90 13.71 2.66 11.52 2.33 1.26 3.22 8.27 8.35 Dis- charge (ft^s) 887 5,000 4,900 806 1,190 463 752 513 1,650 1,060 1,740 645 256 770 2,110 2,230 1,580 1,790 3,540 1,120 9,770 2,680 315 933 481 307 395 492 435 Significant floods during 1970-89 Date (month/ day/year) 8/25/72 7/22/82 10/01/86 6/20/72 8/14/87 8/26/72 8/26/72 9/18/72 8/26/72 8/14/87 8/26/72 3/04/79 8/26/72 8/26/72 8/26/72 8/27/72 8/27/72 8/06/89 8/27/72 8/17/87 8/14/87 8/15/87 6/13/76 6/13/76 7/22/82 8/14/87 4/25/76 3/04/76 7/22/82 9/26/86 Stage (ft) 7.27 7.94 10.88 7.58 8.08 7.21 3.60 3.57 3.27 14.03 - 5.19 6.57 13.35 3.57 7.62 7.27 13.56 4.48 10.54 12.84 9.90 10.22 2.66 10.93 11.52 2.33 3.22 8.35 8.27 Dis- charge (ft3/s) 802 887 4,900 664 806 1,190 463 752 513 1,650 1,060 1,740 645 256 770 2,110 2,230 1,580 1,790 3,540 1,120 9,770 2,230 315 756 933 481 395 435 492 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 15-25 40-50 50-75 15-25 40-50 - - .. 50-100 15-25 - - - - >100 15-25 .. >100 >100 >100 25-35 30-40 >100 - 25-35 75-100 Significant Floods, 1970 Through 1989, Illinois 215 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 05535070 05535200 05535300 05535500 05536000 05536201 05536210 05536235 05536238 05536255 05536265 05536340 05536460 05536510 05536560 05536570 05539000 05539870 05539900 05539950 05540030 05540080 05540095 05540140 Total drainage area Station name (mi2) Skokie River near Highland Park, IL North Branch Chicago River at Glenview, IL West Fork of North Branch Chicago River at Bannockburn, IL West Fork of North Branch Chicago River at Northbrook, IL North Branch Chicago River at Niles, IL Thorn Creek at Park Forest, IL Thorn Creek near Chicago Heights, IL Deer Creek near Chicago Heights, IL Butterfield Creek near Lincoln Estates, IL Butterfield Creek at Flossmoor, IL Lansing Ditch near Lansing, IL Midlothian Creek at Oak Forest, IL Tinley Creek near Oak Forest, IL Navajo Creek at Palos Heights, IL Melvina Ditch near Oak Lawn, IL Stony Creek (West) at Worth, IL Hickory Creek at Joliet, IL West Branch Du Page River at Ontarioville, IL West Branch Du Page River near West Chicago, IL Klein Creek at Carol Stream, IL West Branch Du Page River at West Chicago, IL Spring Brook at Wheaton, IL West Branch Du Page River near Warrenville, IL East Branch Du Page River near Bloomingdale, IL 21.1 60.5 2.55 11.5 100 6.28 17.2 23.1 1.77 23.5 8.84 12.60 7.95 1.69 5.58 18.0 107 10.1 28.5 8.81 60.2 2.10 90.4 2.36 Period of record 1967-96 1960-77 1961-76 1953-96 1951-96 1955, 1957, 1962-78 1965-79 1948-96 1961-79 1948-96 1948-96 1951-96 1961-79 1961-79 1962-80 1962-76, 1979 1902, 1926, 1942, 1945-96 1961-79 1961-96 1961-79 1955, 1961-79 1961-79 1969-96 1961-79 Water year 1987 1976 1972 1987 1987 1974 1974 1957 1991 1979 1996 1948 1955 1973 1957 1970 1978 1976 1976 1976 1981 1972 1983 1987 1972 1972 1972 1996 1972 Stage (ft) 9.09 4.53 4.44 10.10 11.35 5.74 8.31 11.75 11.79 4.55 12.59 9.24 10.18 7.67 9.00 3.99 4.67 4.35 5.62 10.52 14.90 4.66 10.44 10.63 3.91 2.52 7.10 6.41 2.25 Dis- charge (ftVs) 895 1,200 387 1,190 2,590 1,460 2,220 1,380 809 573 2,220 461 302 627 550 999 853 434 408 1,570 17,300 630 984 958 888 1,670 552 3,470 204 Significant floods during 1970-89 Date (month/ day/year) 8/14/87 4/25/76 6/20/72 7/22/82 8/14/87 8/14/87 6/06/74 6/06/74 6/13/81 3/04/79 5/22/82 6/13/81 4/22/73 4/30/70 7/21/76 6/13/76 6/13/76 6/13/81 8/26/72 12/03/82 8/14/87 8/26/72 8/26/72 8/26/72 8/15/87 8/26/72 Stage (ft) 9.09 4.53 4.44 9.66 10.10 11.35 5.74 8.31 11.49 4.55 11.97 9.35 7.67 3.99 4.35 5.62 10.52 14.90 4.66 10.44 10.63 3.91 2.52 7.10 5.85 2.25 Regu- Recur. Dis- lated rence charge during interval (ft'/s) flood1 (years) 895 1,200 387 1,070 1,190 2,590 1,460 2,220 848 573 2,160 204 627 999 434 408 1,570 17,300 630 984 958 888 1,670 552 3,050 204 N N N N N N N N N N N N N N N N N N N N N N N N N N 75-100 -- 40-50 100 >100 -- 25-50 10-20 -- 25-35 2-5 50-100 -- - - >100 - 35-45 30-40 - - 50-100 216 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 05540150 05540160 05540190 05541750 05542000 05543500 05548280 05549000 05549900 05550000 05550300 05550500 05551200 05551500 05551520 05551530 05551620 05551650 05551700 05551800 05551900 05551930 05552500 05554000 05554500 Station name East Branch Du Page River at Glen Ellyn, IL East Branch Du Page River near Downers Grove, IL St. Joseph Creek at Belmont, IL Mazon River tributary near Gardner, IL Mazon River near Coal City, IL Illinois River at Marseilles, IL Nippersink Creek near Spring Grove, IL Boone Creek near McHenry, IL Fox River tributary near Gary, IL Fox River at Algonquin, IL Tyler Creek at Elgin, IL Poplar Creek at Elgin, IL Person Creek near St. Charles, IL Fox River at Aurora, IL Indian Creek near North Aurora, IL Indian Creek at Aurora, IL Blackberry Creek near Kaneville, IL Lake Run tributary near Batavia, IL Blackberry Creek near Yorkville, IL Fox River tributary number 2 near Fox, IL East Branch Big Rock Creek near Big Rock, IL Welch Creek near Big Rock, IL Fox River at Dayton, IL North Fork Vermilion River near Charlotte, IL Vermilion River at Pontiac, IL Total drainage area (mi2) 13.6 26.6 8.83 4.52 455 8,259 192 15.5 0.07 1,403 38.9 35.2 51.7 1,705 5.21 16.7 21.6 2.13 70.2 0.45 32.6 22.1 2,642 186 579 Period of record 1961, 1963-76, 1978-80 1955, 1961-76, 1990-96 1961-77 1959-80 1924, 1940-95 1892, 1894-98, 1900, 1904-96 1960, 1966-96 1949-92 1956-75, 1977-79 1916-96 1962-63, 1965-76, 1978-80 1952-96 1961-96 1960, 1962-76 1961-79 1961-79 1961-63, 1965-67, 1969-79 1961-76 1961-96 1961-78, 1980 1965-79 1965-80 1915-96 1943-96 1933, 1943-62, 1964-96 Water year 1972 1972 1996 1972 1979 1983 1924 1983 1922 1986 1986 1972 1960 1916 1973 1973 1989 1996 1973 1978 1978 1974 1970 1996 1978 1974 1974 1996 1987 1983 Stage (ft) 3.58 4.73 16.13 4.08 15.25 19.51 21.00 16.78 20.10 14.26 5.37 16.50 4.01 4.50 1.63 5.45 5.79 7.79 2.23 1.98 5.41 3.09 16.36 13.16 15.71 3.80 4.56 -- 17.09 19.16 Dis- charge (ft3/s) 912 1,720 936 642 173 22,400 94,100 60,600 2,910 345 59 6,610 5,850 488 896 700 1,990 11,000 402 744 640 346 5,510 320 1,580 694 55,400 4,900 13,100 Significant floods during 1970-89 Date (month/ day/year) 8/26/72 8/26/72 8/26/72 4/12/79 12/04/82 2/24/85 5/15/70 6/14/81 12/04/82 9/26/86 6/02/70 9/27/86 7/18/72 4/02/79 10/03/86 4/22/73 4/22/73 2/20/71 4/22/73 4/23/73 9/13/78 9/13/78 5/16/74 6/02/70 7/03/83 6/25/78 5/16/74 5/16/74 3/20/79 3/05/85 5/14/70 10/03/86 6/03/80 12/04/82 Stage (ft) 3.58 4.73 4.08 15.25 19.51 17.80 15.08 14.73 16.78 14.26 4.87 5.37 16.50 4.00 3.99 1.63 5.45 7.64 7.47 2.23 1.98 5.41 3.09 16.36 9.91 15.71 3.80 4.56 17.35 17.70 16.13 17.09 18.12 19.16 Dis- charge (tf/s) 912 1,720 642 173 22,400 18,800 92,500 88,500 94,100 2,910 276 345 59 6,610 6,170 488 896 1,970 1,850 11,000 402 744 640 346 2,060 320 1,580 694 29,800 28,400 4,550 4,900 11,300 13,100 Regu- lated during flood1 N N N N N N Y Y Y N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 50-100 -- -- 45-55 15-20 >100 >100 15-25 15-25 50-100 40-45 20-25 -- 30-40 15-25 10-20 -- " -- 15-25 -- -- -- 30-35 20-25 10-20 25-30 15-20 30-35 Significant Floods, 1970 Through 1989, Illinois 217 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 05555300 05556500 05557000 05557100 05557500 05558300 05558500 05559000 05559500 05560500 05561000 05561500 05562000 05563000 05563500 05564400 05566500 05567000 05567500 05568000 05568500 05568800 05568850 05569500 05570000 Station name Vermilion River near Leonore, IL Big Bureau Creek at Princeton, IL West Bureau Creek at Wyanet, IL West Bureau Creek tributary near Wyanet, IL East Bureau Creek near Bureau, IL Dlinois River at Henry, IL Crow Creek (west) near Henry, IL Gimlet Creek at Sparland, IL Crow Creek near Washburn, IL Farm Creek at Farmdale, IL Ackerman Creek at Farmdale, IL Fondulac Creek near East Peoria, IL Farm Creek at East Peoria, IL Kickapoo Creek near Kickapoo, IL Kickapoo Creek at Peoria, IL Money Creek near Towanda, IL East Branch Panther Creek at El Paso, IL Panther Creek near El Paso, IL Mackinaw River near Congerville, IL Mackinaw River near Green Valley, IL Illinois River at Kingston Mines, IL Indian Creek near Wyoming, IL Forman Creek tributary near Victoria, IL Spoon River at London Mills, IL Spoon River at Seville, IL Total drainage area (mi2) 1,251 196 86.7 0.33 99.0 13,543 56.2 5.66 115 27.4 11.2 5.54 61.2 119 297 49.0 30.5 93.9 767 1,073 15,818 62.7 1.00 1,072 1,636 Period of record 1931-96 1937-96 1932, 1937-76, 1978-91 1956-75, 1977, 1979 1937-96, 1982-96 1950-82 1924, 1946-47, 1950-82 1945-79, 1981-82 1949-85 1954-80 1948-85 1943-80 1945-96 1927, 1943-96 1958-82 1950-82 1950-96 1945-96 1922-58, 1960-96 1939-96 1960-96 1961-76 1943-96 1914-96 Water year 1958 1983 1974 1974 1973 1974 1938 1983 1985 1970 1974 1954 1980 1950 1980 1979 1947 1967 1974 1980 1951 1951 1983 1983 1993 1983 1943 1974 1975 1974 1924 1993 Stage (ft) - 27.13 16.01 16.14 25.05 17.15 17.39 32.02 10.34 10.03 11.85 4.43 7.58 16.58 4.66 15.00 17.08 29.68 11.70 14.21 15.15 20.21 16.13 28.29 23.86 26.02 23.81 17.09 28.03 30.77 33.10 Dis- charge (ftVs) 33,500 31,800 12,500 20,100 261 7,500 6,200 108,000 -- 6,930 1,940 5,750 1,050 -- 5,100 560 22,000 27,500 48,500 2,600 5,300 10,900 44,800 51,000 16,000 88,800 83,100 6,540 391 41,000 37,300 34,700 Significant floods during 1970-89 Date (month/ day/year) 5/15/70 12/04/82 6/15/72 5/17/74 6/15/72 5/17/74 4/20/73 5/17/74 3/04/85 12/07/82 5/14/70 6/21/74 6/21/74 6/02/80 6/03/80 3/03/79 7/09/78 6/02/80 6/22/74 6/22/74 8/16/81 4/17/82 6/02/80 3/02/79 6/02/80 12/04/82 4/21/73 6/03/80 12/05/82 12/07/82 3/06/85 6/22/74 4/18/75 6/23/74 3/04/85 10/04/86 6/24/74 3/06/85 Stage (ft) - 27.13 15.16 16.01 14.30 16.14 25.05 17.15 16.31 __ 10.34 10.03 11.64 4.43 16.58 4.66 6.55 10.62 16.40 29.68 -- 11.70 12.37 12.96 20.21 14.94 15.98 16.13 23.86 25.55 23.81 17.09 28.03 25.15 24.36 31.82 29.85 Dis- charge (ftVs) 24,800 31,800 10,000 12,500 10,800 20,100 261 7,500 6,630 108,000 6,930 1,940 5,200 1,050 5,100 560 9,330 12,800 26,000 48,500 31,000 20,300 2,600 2,790 7,400 44,800 29,700 46,700 51,000 88,800 78,800 6,540 391 41,000 30,900 26,400 36,400 29,200 Regu- lated during flood1 N N N N N N N N N Y N N N Y N Y Y Y N N N N N N N N N N N Y Y N N N N N N N Recur- rence interval (years) 10-15 30-35 15-20 65-70 45-50 >100 45-50 25 50-100 25 25 >100 .. 2-5 2-5 25 >100 45-50 15-20 50-100 35-45 10-20 >100 20-25 75-85 >100 40-45 15-20 >100 - >100 45-50 25-30 65-70 20-25 218 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 05570350 05570360 05570370 05570380 05570910 05572500 05573540 05574000 05574500 05575500 05575800 05576000 05576500 05577500 05577700 05578500 05579500 05580000 05580500 05580950 05581500 05582000 05582500 05583000 05584400 Station name Big Creek at St. David, IL Evelyn Branch near Bryant, IL Big Creek near Bryant, IL Slug Run near Bryant, IL Sangamon River at Fisher, IL Sangamon River near Oakley, IL Sangamon River at Route 48 at Decatur, IL South Fork Sangamon River near Nokomis, IL Flat Branch near Taylorville, IL South Fork Sangamon River at Kincaid, IL Horse Creek at Pawnee, IL South Fork Sangamon River near Rochester, IL Sangamon River at Riverton, IL Spring Creek at Springfield, IL Sangamon River tributary at Andrew, IL Salt Creek near Rowell, IL Lake Fork near Cornland, IL Kickapoo Creek at Waynesville, IL Kickapoo Creek near Lincoln, IL Sugar Creek near Bloomington, IL Sugar Creek near Hamburg, IL Salt Creek near Greenview, IL Crane Creek near Easton, IL Sangamon River near Oakford, IL Drowning Fork at Bushnell, IL Total drainage area (mi2) 28.0 5.78 41.2 7.12 240 774 938 11.0 276 562 52.2 867 2,618 107 1.50 335 214 227 306 34.4 333 1,804 26.5 5,093 26.3 Period of record 1972-86 1972-92 1972-92 1975-92 1979-96 1951-77 1983-96 1951-82 1950-82 1908-12, 1915-27, 1929-30, 1932-33, 1943, 1945-92 1968-85 1950-96 1908-96 1948-96 1956-75, 1977-80 1908-12, 1943-96 1943, 1948-96 1948-96 1929, 1943, 1945-92 1975-96 1945-92 1942-96 1950-81 1910-12, 1915-18, 1921-22, 1926-29, 1931-96 1961-86, 1988-92 Water year 1974 1980 1986 1974 1983 1986 1994 1974 1961 1994 1983 1957 1957 1957 1983 1994 1943 1927 1996 1979 1968 1943 1981 1983 1929 1983 1983 1943 1979 1959 1943 1980 1961 Stage (ft) 10.25 10.54 3.69 12.90 13.22 8.91 21.58 18.40 18.85 21.12 23.04 14.84 19.55 30.02 20.41 32.40 31.52 32.04 16.23 17.16 29.21 23.40 16.91 16.60 17.40 14.02 17.90 20.50 8.54 9.08 25.63 12.92 13.26 Dis- charge (ft'/s) 2,080 1,090 325 1,220 1,130 685 13,000 16,000 15,300 17,100 12,400 8,600 13,000 21,500 3,300 20,300 68,700 41,000 10,700 660 24,500 29,000 24,600 23,300- 6,600 41,200 41,200 534 425 123,000 3,500 1,650 Significant floods during 1970-89 Date (month/ day/year) 6/23/74 6/05/86 6/23/74 5/01/83 11/20/85 6/23/74 11/19/85 6/15/70 4/12/79 4/12/79 5/01/83 4/14/79 4/12/79 5/02/83 12/03/82 4/11/79 3/05/79 4/12/79 4/11/79 8/15/81 4/12/79 12/03/82 12/03/82 8/15/81 12/04/82 6/24/74 12/04/82 5/31/74 3/03/79 4/15/79 12/05/82 11/01/77 6/02/80 Stage (ft) 10.25 3.69 12.90 6.41 18.30 18.40 22.61 14.10 18.79 27.45 20.41 31.92 26.78 25.42 14.44 17.16 22.76 23.11 16.55 16.91 16.55 16.60 14.02 16.57 17.90 19.81 20.21 8.54 8.54 22.56 23.65 10.78 12.92 Dis- charge (ftVs) 2,080 325 1,220 322 8,550 16,000 13,900 6,000 11,300 17,500 3,300 14,900 44,200 38,800 8,080 660 7,140 8,930 21,400 24,600 23,200 23,300 6,600 33,000 41,200 38,100 37,500 508 534 55,900 68,700 1,680 3,500 Regu- lated during flood1 N Y N N N N Y N N N N Y N N N N Y N N N N N Y N N N N N N N N N N Recur- rence interval (years) 50-100 - 10-20 10-20 5-10 25-35 - 50-75 30-40 50 5-10 15-25 50-60 20-25 25-35 - 2-5 65-75 50-75 75-100 75-100 75-100 - 40-50 75-100 30-40 25-35 5-10 10-20 15-20 40-50 10-20 >100 Significant Floods, 1970 Through 1989, Illinois 219 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Station number (fig. 35) 05584500 05585000 05585500 05586000 05586800 05586850 05587000 05587500 05587900 05590400 05590800 05591200 05591500 05591700 05591750 05592000 05592050 05592100 05592300 05592800 05593600 05594090 05594330 05594450 05595200 Station name La Moine River at Colmar, IL La Moine River at Ripley, IL Illinois River at Meredosia, IL North Fork Mauvaise Terre Creek near Jacksonville, IL Otter Creek near Palmyra, IL Bear Creek tributary near Reeders, IL Macoupin Creek near Kane, IL Mississippi River at Alton, IL Cahokia Creek at Edwardsville, IL Kaskaskia River near Pesotum, IL Lake Fork at Atwood, IL Kaskaskia River at Cooks Mills, IL Asa Creek at Sullivan, IL West Okaw River near Lovington, IL Stringtown Branch tributary near Lake City, IL Kaskaskia River at Shelbyville, IL Robinson Creek near Shelbyville, IL Kaskaskia River near Cowden, IL Wolf Creek near Beecher City, IL Hurricane Creek near Mulberry Grove, IL Blue Grass Creek near Raymond, IL Sugar Creek at Albers, IL Mud Creek near Marissa, IL Silver Creek near Troy, IL Richland Creek near Total drainage area (mi2) 655 1,293 26,029 29.1 61.1 0.02 868 171,500 212 109 149 473 8.05 112 0.70 1,054 93.1 1,330 47.9 152 17.3 124 72.4 154 129 Period of record 1945-96 1921-96 1921-83, 1985-89 1950-90, 1992-96 1960-80 1956-80 1921-33, 1941-90, 1992-96 1858, 1928-86 1969-96 1965-79 1973-96 1971-93 1951-82 1980-96 1961-80 1908-13, 1939-96 1980-96 1971-96 1959-82 1971-96 1961-91 1973-82 1971-82 1967-96 1970-96 Water year 1985 1985 1943 1994 1990 1966 1973 1943 1994 1858 1985 1979 1974 1979 1994 1994 1974 1996 1978 1957 1983 1993 1979 1985 1970 1983 1990 1973 1970 1973 1979 1977 1979 1990 1996 Stage (ft) 26.61 29.07 28.61 12.35 12.77 11.91 20.80 28.50 28.32 - 425.23 24.74 15.92 14.03 15.39 17.30 12.06 16.40 15.56 22.37 13.37 14.92 18.97 19.12 13.17 19.99 20.91 12.80 14.79 22.70 16.74 16.82 17.52 17.94 44.40 Dis- charge (ft3/s) 38,900 28,000 123,000 7,160 4,600 11,900 42 40,000 40,100 573,000 40,300 8,200 3,310 4,030 -- 9,950 1,460 10,300 150 25,900 11,300 10,700 19,700 16,800 7,480 17,900 15,100 2,140 2,130 10,500 5,520 4,900 10,600 9,170 23,400 Significant floods during 1970-89 Date (month/ day/year) 3/05/85 10/04/86 9/27/70 3/07/85 10/07/86 12/12/82 3/10/85 5/06/77 12/03/82 5/13/78 6/19/73 4/12/79 12/04/82 4/29/73 4/12/79 6/23/74 3/05/79 2/23/85 5/19/74 5/02/83 8/02/78 3/08/82 5/02/83 4/12/79 4/19/70 12/25/82 4/21/73 1 1/02/72 4/12/79 4/12/79 11/02/72 Stage (ft) 26.61 25.69 28.42 29.07 28.10 26.40 27.62 11.62 11.62 11.60 20.80 26.51 26.30 - 24.74 15.92 14.03 16.72 12.06 15.07 15.56 12.82 13.37 18.97 13.17 19.99 12.80 22.70 16.74 17.52 42.88 Regu- Dis- lated charge during (frVs) flood1 38,900 28,700 24,100 28,000 23,400 112,000 122,000 4,700 4,700 8,940 42 27,800 26,700 535,000 8,200 3,310 4,030 9,250 1,460 5,300 150 5,090 11,300 19,700 7,480 17,900 2,140 10,500 5,520 10,600 14,900 N N N N N Y Y N N Y N N N Y N N N N N N N Y N Y N N N N N N N Recur- rence interval (years) 75-100 25-30 20-25 40-50 20-25 20-25 40-50 25-35 25-35 10-25 15-20 15-20 75-100 - 10-25 25 10-20 40-50 5-10 - <2 25-40 - 15-25 15-25 50-100 10-25 10-25 15-25 35-45 Hecker, IL 05596100 Andy Creek tributary at Valier, IL 1.03 1956-72 1970 18.58 835 6/16/70 18.58 835 N 220 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 14. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Illinois Continued Maximum stage and discharge for period of record through 1996 Significant floods during 1970-89 Station number (fig. 35) 05597000 05597500 05599500 07020500 07022000 Station name Big Muddy River at Plumfield, IL Crab Orchard Creek near Marion, IL Big Muddy River at Murphysboro, IL Mississippi River at Chester, IL Mississippi River at Thebes, IL Total drainage area (mi2) 794 31.7 2,169 708,600 713,200 Period of record 1909-12, 1914-96 1952-96 1916-96 1844, 1926-96 1844, 1933-96 Water year 1961 1983 1996 1961 1996 1844 1993 1844 1995 Stage (ft) 29.67 31.84 13.60 37.77 36.12 39.80 49.74 45.91 Dis- charge (ffVs) 42,900 11,800 9,270 33,300 33,800 1,350,000 1,000,000 1,375,000 Date (month/ day/year) 5/04/83 1/31/82 4/30/83 5/05/83 4/30/73 4/30/73 Stage («) 31.84 12.63 12.66 36.88 43.32 43.43 Dis- charge (ffVs) 11,800 3,520 3,570 32,100 886,000 886,000 Regu- lated during flood1 Y N N Y Y Y Recur- rence interval (years) 2-5 20-25 20-25 25-30 5-10 5-10 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Illinois 221 Indiana Significant Floods Hydroclimatology Indiana's location in the midcontinent interior allows several different sources of moisture to affect the climate. These sources originate from the Pacific Ocean, Lake Michigan, the Gulf of Mexico, and the subtropical Atlantic Ocean. Tropical airmasses domi- nate the climate in the late spring, summer, and early fall. These airmasses originate in the Gulf of Mexico and the subtropical Atlantic. Polar continental air- masses control the late fall, winter, and early spring climate. These typically dry airmasses carry frontal systems that form over Alberta, Canada, and move southeastward. However, lake-effect moisture from Lake Michigan combines with the polar airmasses to cause greater precipitation in northern and northwest- ern Indiana. A well-defined, north-south climatic gra- dient across the State results in a cool, temperate, continental climate in the north and a warm, temper- ate, continental climate in the south. Mean annual pre- cipitation ranges from 37 in. in the northwestern and north-central parts of the State to 44 in. in the south- central part (Paulson and others, 1991). Flooding in Indiana is most widespread in late winter when excessive rainfall caused by frontal sys- tems is combined with snowmelt. Frozen or saturated soil can result in an increase in runoff. Indiana also receives flooding due to the remnants of hurricanes tracking across the State. Summer floods typically are caused by thunderstorms and affect a smaller area than the floods associated with the remnants of hurricanes. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, factors affecting the magnitude of maximum discharges for streams in Indiana are con- tributing drainage area of the basin; storage, which is the percentage of the contributing drainage area cov- ered by lakes, ponds, and wetlands; runoff coefficient, which relates storm runoff to soil permeability; main- channel slope; precipitation, using 2-year, 24-hour measurements; and main-channel length (Jennings and others, 1994). Moderate rainfall combined with a melting snow- pack produced the floods of March 1982. Northern Indiana was most affected by the floods. Thirteen per- cent of the streamflow-gaging stations in the State recorded significant discharges. Flooding on the Kankakee River and its tributaries caused extensive damage in three counties in northwestern Indiana. The summer of 1979 was plagued by flooding. The first storm arrived in June, and an excess of 10 in. of rain fell in parts of southwestern Indiana. Remnants of Hurricane Bob caused the second major storm. Rainfall lasting all day caused local flooding in areas of southwestern, central, and eastern Indiana. The third and largest storm of the summer was caused when remnants of Tropical Storm Claudette combined with a stationary weather front. Intense rains caused flash flooding, and a total of 9 in. of rain was recorded in some areas. The recurrence intervals of the floods on some smaller creeks were greater than 100 years (Paulson and others, 1991). The location of streamflow-gaging stations in Indiana that had significant floods for 1970-89 is shown figure 36 by station number. The specific data for each significant flood are listed in table 15. A sig- nificant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 222 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 MICHIGAN 8?° 04099750 Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 40 60 MILES 0 20 40 60 KILOMETERS EXPLANATION 03376350 Ei Sfreamflow-gaging station and number Figure 36. Location of streamflow-gaging stations with significant floods during 1970-89 for Indiana. Significant Floods, 1970 Through 1989, Indiana 223 Table 15. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Indiana [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; -, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1995 Station number (fig. 36) 03274730 03274880 03274950 03275800 03275900 03276000 03276640 03276700 03276770 03276950 03292350 03302220 03302300 03302350 03302500 03302690 03302730 03302800 03303250 03303400 03303440 03303900 03322500 03322900 03323500 Station name Whitewater River tributary near Hagerstown, IN Greens Fork tributary near Lynn, IN Little Williams Creek at Connersville, IN West Run near Liberty, IN Templeton Creek near Fairfield, IN East Fork Whitewater River at Brookville, IN Tanners Creek tributary near Lawrenceburg, IN South Hogan Creek near Dillsboro, IN Laughery Creek tributary near Napoleon, IN Uhlman Creek tributary near Avonburg, IN Flag Run tributary near New Washington, IN Buck Creek near New Middletown, IN Little Indian Creek near Galena, IN Georgetown Creek tributary near Georgetown, IN Indian Creek near Corydon, IN Middle Fork Blue River tributary near Farabee, IN South Fork Blue River near Palmyra, IN Blue River at Fredericksburg, IN Sigler Creek tributary at Uniontown, IN Crooked Creek near Santa Claus, IN East Fork Crooked Creek tributary near Fulda, IN Little Red Creek tributary near Heilman, IN Wabash River near New Corydon, IN Wabash River at Linn Grove, IN Wabash River at Huntington, IN Total drainage area (mi2) 0.12 0.78 9.16 0.30 5.39 380 0.25 38.1 0.11 0.16 0.16 65.2 16.1 0.56 129 0.07 64.3 283 0.15 7.86 0.26 0.25 262 453 721 Period of record 1973-82 1973-82 1969-91 1973-89 1973-82 1954-78, 1980-94 1973-89 1959, 1962-93 1973-82 1973-82 1973-89 1970-95 1969-95 1973-82 1943-93 1973-82 1975-89 1969-95 1973-89 1970-95 1973-82 1973-82 1952-88 1964-95 1913,1943, 1951-95 Water year 1978 1979 1978 1974 1989 1980 1959 1968 1974 1959 1978 1982 1973 1970 1973 1980 1964 1982 1983 1976 1983 1979 1970 1989 1977 1979 1959 1978 1959 Stage (ft) 6.95 8.05 8.24 10.13 11.78 25.02 16.50 17.35 15.59 14.00 7.77 8.51 7.71 14.40 9.30 13.15 22.64 7.20 22.40 28.43 24.37 10.68 9.74 10.13 10.60 9.38 20.47 13.87 23.20 Dis- charge (ft3/*) 28 240 210 3,560 255 1,900 36,100 31,600 300 16,300 58 86 51 12,700 5,500 1,000 26,700 45 9,000 4,500 13,500 170 4,100 4,010 182 120 8,720 9,560 14,900 Significant floods during 1970-89 Date (month/ day/year) 5/23/78 8/01/79 6/22/74 5/26/89 8/18/80 3/05/75 6/22/74 4/29/70 6/19/78 6/08/82 7/21/73 4/02/70 7/21/73 7/02/80 7/22/73 1/23/82 5/01/83 5/02/83 7/26/79 4/28/70 8/24/77 7/26/79 2/24/85 3/17/78 3/24/82 Stage (ft) 6.95 8.05 10.13 11.78 25.02 8.21 15.59 12.70 7.77 8.51 7.71 14.40 9.30 13.15 22.31 7.20 22.40 24.37 10.68 9.74 10.60 9.38 19.44 13.87 - Dis- charge (ft3/s) 28 240 3,560 255 1,900 6,550 300 13,000 58 86 51 12,700 5,500 1,000 24,400 45 9,000 13,500 170 4,100 182 120 6,840 9,560 6,230 Regu- lated during flood1 N N N N N Y N N N N N N N N N N N N N N N N N N Y Recur- rence interval (years) 10 10-25 >100 25 25-50 20 50 40 25 10 50 25 25 80 100 10-25 25-50 <10 25 30 10-25 25 15 15 <10 224 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 15. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Indiana Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 36) 03324000 03324210 03324260 03324350 03326070 03327530 03327790 03327930 03328000 03328020 03328500 03329720 03330290 03330500 03331110 03331500 03332340 03332780 03333420 03333600 03333620 03334000 03334200 03334500 03334900 Station name Little River near Huntington, IN Blame Run at Blaine, IN Salamonie River tributary near Montpelier, IN Brook Creek tributary near Warren, IN Big Lick Creek near Hartford City, IN Minnow Creek tributary near Logansport, IN Eel River tributary near Columbia City, IN Koontz Ditch near Sidney, IN Eel River at North Manchester, IN Otter Creek tributary near North Manchester, IN Eel River near Logansport, IN Robinson Branch near Delphi, IN Shanton Ditch near Pierceton, IN Uppecanoe River at Oswego, IN Walnut Creek near Warsaw, IN Tippecanoe River near Ora,IN Weltzin Ditch tributary near Francesville, IN Big Creek near Wolcott, IN Grassy Fork tributary at Point Isabel, IN Kokomo Creek near Kokomo, IN Scott Youngman Ditch near Kokomo, IN Wildcat Creek at Owasco, IN Prairie Creek tributary near Frankfort, IN South Fork Wildcat Creek near Lafayette, IN South Fork Wildcat Creek tributary near Monitor, IN Total drainage area (mi2) 263 0.45 1.26 0.52 29.2 0.50 0.17 2.50 417 0.92 789 5.49 0.70 113 19.6 856 0.50 1.35 0.67 24.7 0.86 396 2.61 243 0.10 Period of record 1944-95 1973-82 1973-82, 1984-89 1972-82 1972-89, 1991-95 1973-82 1973-82 1973-82 1883, 1913, 1924-95 1973-84 1943-95 1973-82 1973-82 1943, 1950-95 1970-95 1944-88, 1990-95 1973-84 1973-82 1973-82 1960-95 1973-82 1913, 1943-81, 1989-95 1973-89 1943-95 1973-82 Water year 1950 1985 1981 1984 1972 1981 1973 1980 1981 1980 1991 1913 1981 1985 1943 1981 1975 1981 1943 1981 1981 1990 1978 1982 1980 1964 1980 1980 1913 1978 1943 1981 Stage (ft) 16.90 19.50 7.80 7.89 8.23 16.14 7.04 7.71 - 11.58 14.81 15.50 6.92 12.68 13.20 7.33 7.59 6.52 9.40 5.38 15.08 15.22 7.98 10.96 7.20 9.88 9.75 11.58 16.00 11.87 16.80 7.35 Dis- charge (ft3/s) 5,990 5,750 78 144 116 1,940 105 50 375 355 8,740 -- 195 17,700 17,000 350 190 35 1,050 561 8,660 7,110 68 250 125 1,040 156 10,800 236 17,900 84 Significant floods during 1970-89 Date (month/ day/year) 3/14/82 2/25/85 6/25/81 7/05/84 9/14/72 6/06/81 8/28/73 6/04/80 6/13/81 3/13/82 2/24/85 4/14/81 2/24/85 5/15/81 6/13/81 3/21/82 3/04/85 6/13/81 6/15/81 3/15/82 2/25/85 3/21/78 5/22/82 6/03/80 6/02/80 6/02/80 6/04/80 6/22/78 5/02/83 5/26/89 6/25/78 8/31/81 Stage (ft) 19.39 19.50 7.80 7.89 8.23 16.14 7.04 7.71 -- 13.72 13.76 6.92 12.68 7.33 6.52 9.25 8.89 5.38 15.08 14.98 15.05 7.98 10.96 7.20 9.45 9.75 11.58 11.87 15.68 15.36 7.32 7.35 Dis- charge (ft*/8) 5,700 5,750 78 144 116 1,940 105 50 375 8,180 8,240 195 17,700 350 35 950 758 561 8,660 8,460 8,640 68 250 125 959 156 10,800 236 15,100 14,400 84 84 Regu- lated during flood1 N N N N N N N N N N N N N N N Y Y N N N N N N N N N N N N N N N Recur- rence interval (years) 70 70 50 10 10 50 10 10 10-25 50 50 25-50 100 <10 50-100 100 30 15-20 50 40 50 >100 10-25 <10 20 25 25 <10 50 45 10 10 Significant Floods, 1970 Through 1989, Indiana 225 Table 15. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Indiana Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 36) 03335000 03335500 03335685 03335790 03336000 03339108 03339230 03340500 03341150 03341500 03342000 03342100 03342150 03342180 03342244 03342250 03342300 03342500 03343000 03346650 03346840 03348020 03348700 03350650 03351310 Station name Wildcat Creek near Lafayette, IN Wabash River at Lafayette, IN Big Pine Creek tributary near Pine Village, IN Big Shawnee Creek tributary near Attica, IN Wabash River at Covington, IN East Fork Coal Creek near Hillsboro, IN Woods Ditch near Frankfort, IN Wabash River at Montezuma, IN Demeree Creek tributary near Byron, IN Wabash River at Terre Haute, IN Wabash River at Riverton, IN Busseron Creek near Hymera, IN West Fork Busseron Creek near Hymera, IN Kettle Creek tributary near Shelburn, IN Mud Creek near Cass, IN Mud Creek near Dugger, IN Busseron Creek near Sullivan, IN Busseron Creek near Carlisle, IN Wabash River at Vincennes, IN River Deshee tributary near Frichton, IN White River tributary at Parker City, IN Killbuck Creek near Gaston, IN White River tributary near Strawtown, IN Stony Creek tributary near Lapel, IN Crooked Creek at Total drainage area (mi2) 794 7,267 0.21 1.00 8,218 33.4 1.12 11,118 0.15 12,263 13,161 16.7 14.4 0.48 9.16 11.9 138 228 13,706 0.82 0.20 25.5 0.42 0.60 17.9 Period of record 1955-92, 1994-95 1901-02, 1904, 1907-95 1973-82 1973-82 1913, 1927-92, 1994-95 1969-91 1972-82 1913, 1925-95 1973-89 1828,1858, 1867,1875, 1883, 1892-97, 1902-95 1912-14, 1939-95 1967-95 1967-86 1973-82 1982-91 1967-81 1967-86 1944-95 1913-94 1973-82 1973-82 1968-91 1973-82 1973-82 1970-95 Water year 1958 1913 1943 1974 1974 1913 1983 1975 1978 1913 1979 1913 1913 1943 1974 1982 1973 1979 1989 1979 1979 1950 1961 1913 1943 1979 1978 1980 1979 1978 1978 Stage (ft) 21.52 -- 28.47 7.61 8.31 35.10 10.47 11.13 11.59 34.00 7.99 31.10 26.40 29.36 18.58 19.16 13.23 11.52 12.16 14.83 16.28 20.05 20.30 26.30 29.33 10.56 7.00 12.70 8.42 7.55 13.31 Dis- charge (ft3/*) 25,000 190,000 131,000 200 240 200,000 2,680 276 244 230,000 80 245,000 250,000 201,000 1,890 1,160 1,930 490 996 1,270 6,050 8,800 8,580 255,000 189,000 250 26 1,200 80 180 5,500 Significant floods during 1970-89 Date (month/ day/year) 5/02/83 2/25/85 5/29/74 6/22/74 2/25/85 5/01/83 5/22/75 2/26/85 8/21/79 2/26/85 3/01/85 9/12/74 7/26/73 7/27/79 7/12/89 7/27/79 7/29/79 7/30/79 3/02/85 7/26/79 3/15/78 6/02/80 8/03/79 3/17/78 6/26/78 Stage (ft) 20.59 24.32 7.61 8.31 28.39 10.47 11.13 30.89 7.99 26.60 24.46 18.58 13.23 11.52 12.16 14.83 16.28 19.01 29.26 10.56 7.00 12.70 8.42 7.55 13.31 Dis- charge (frVs) 22,100 80,400 200 240 93,900 2,680 276 115,000 80 114,000 118,000 1,890 1,930 490 996 1,270 6,050 6,210 104,000 250 26 1,200 80 180 5,500 Regu- lated during flood1 N Y N N Y N N Y N Y Y Y N N N Y Y Y Y N N N N N N Recur- rence interval (years) 25 <10 10-25 <10 10 35-45 10 10 10 10 10 25 25 25 50 25 25 20 10 10-25 25 <10 10 10-25 50 Indianapolis, IN 226 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 15. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Indiana Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 36) 03351400 03352400 03353120 03353160 03353600 03353620 03353668 03353800 03356780 03357350 03360100 03360400 03360850 03361660 03361890 03364100 03364570 03366400 03367600 03368000 03369500 03369700 03370100 03371520 03371630 Station name Sugar Creek near Middletown, IN Blue Creek near Castleton, IN Pleasant Run at Arlington Avenue at Indianapolis, IN Pleasant Run at Brookville Road at Indianapolis, IN Little Eagle Creek at Speedway, IN Lick Creek at Indianapolis, IN White Lick Creek tributary near Brownsburg, IN White Lick Creek at Mooresville, IN Limestone Creek tributary near Gosport, IN Plum Creek near Bainbridge, IN Clear Branch at Cory, IN Doans Creek tributary near Doans, IN Veales Creek tributary at Washington, IN Little Sugar Creek tributary at Carrollton, IN Gilmore Creek near Bargersville, IN Tough Creek near Norristown, IN Fall Fork Clifty Creek tributary near Horace, IN Lewis Creek tributary near Kent, IN Flat Creek tributary at New Frankfort, IN Brush Creek near Nebraska, IN Vernon Fork Muscatatuck River at Vernon, IN Sixmile Creek tributary near North Vernon, IN Blau Ditch tributary near Crothersville, IN Back Creek at Leesville, IN North Fork Salt Creek Total drainage area (mi2) 5.80 0.95 7.58 10.1 24.3 15.6 0.31 212 0.72 3.00 0.27 0.20 0.27 0.70 0.71 1.50 0.83 0.20 0.34 11.4 198 0.39 1.31 24.1 0.22 Period of record 1969-89 1972-81 1956, 1960-95 1960-80 1960-95 1971-95 1973-84 1950, 1957-95 1973-82 1970-95 1973-82 1973-89 1973-82 1973-82 1973-82 1973-89 1973-82 1973-82 1973-82 1956-95 1940-95 1973-82 1973-82 1913, 1971-94 1973-89 Water year 1974 1979 1978 1956 1978 1979 1978 1978 1979 1977 1989 1980 1982 1982 1980 1978 1978 1979 1979 1978 1981 1959 1978 1974 1973 1913 1983 Stage (ft) 7.72 7.18 13.86 16.00 11.28 12.13 9.61 7.61 23.31 7.73 6.50 8.38 10.00 10.21 7.96 10.93 11.43 10.29 7.71 8.21 12.99 32.83 7.52 7.76 14.00 18.10 7.69 Dis- charge (ft3/*) 1,100 76 2,600 3,000 3,330 2,500 110 19,000 250 940 94 190 325 150 312 395 270 130 200 9,360 56,800 80 40 15,300 50 Significant floods during 1970-89 Date (month/ day/year) 6/30/74 6/09/79 6/25/78 10/04/86 6/25/78 7/28/79 6/25/78 6/25/78 7/13/79 8/06/77 9/14/89 6/01/80 9/01/82 5/29/82 8/18/80 6/26/78 6/25/78 6/20/79 7/28/79 8/03/78 6/10/81 6/10/81 6/26/78 9/12/74 7/21/73 5/02/83 Stage (ft) 7.72 7.18 13.86 11.48 11.28 12.13 9.61 7.61 23.31 7.73 6.50 8.38 10.00 10.21 7.96 10.93 11.43 10.29 7.71 8.21 12.99 22.72 7.52 7.76 14.00 7.69 Regu- Dis- lated charge during (ftVs) flood1 1,100 76 2,600 1,990 3,000 3,330 2,500 110 19,000 250 940 94 190 325 150 312 395 270 130 200 9,360 21,200 80 40 15,300 50 N N N N N N N N N N N N N N N N N N N N N Y N N N N Recur- rence interval (years) 15 <10 15 <10 15 50 <10 10 25 10-25 80 10 25-50 10-25 50 50 10-25 <10 10-25 25 >500 <10 <10 25 >100 25 tributary near Nashville, IN Significant Floods, 1970 Through 1989, Indiana 227 Table 15. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Indiana Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 36) 03372300 03372500 03372680 03373240 03373680 03373850 03374455 03374500 03375800 03376230 03376260 03376340 03376350 03376500 03376600 03378550 03378590 04093000 04093200 04093500 04094500 04095250 04097970 04099060 04099510 Station name Stephens Creek near Bloomington, IN Salt Creek near Hairodsburg, IN Clear Creek tributary near Bloomington, IN Spring Creek tributary near Springville, IN French Lick Creek tributary near French Lick, IN Slate Creek tributary near Haysville, IN Patoka River near Hardinsburg, IN Patoka River near Cuzco, IN Hall Creek near St. Anthony, IN Shiloh Drain near Jasper, IN Flat Creek near Otwell, IN Patoka River tributary near Glezen, IN South Fork Patoka River near Spurgeon, IN Patoka River near Princeton, IN Patoka River tributary near Patoka, IN Big Creek near Wadesville, IN Olive Creek tributary near Solitude, IN Deep River at Lake George outlet at Hobart, IN Little Calumet River at Gary, IN Burns Ditch at Gary, IN Salt Creek near McCool, IN East Branch Trail Creek tributary near Springville, IN Lime Lake outlet at Panama, IN Pigeon Creek tributary near Ellis, IN Pigeon Creek near Angola, IN Total drainage area (mi2) 10.9 432 0.38 0.54 0.30 0.14 12.8 171 21.8 0.57 21.3 0.84 42.8 822 0.40 104 0.31 124 160 74.6 0.17 17.5 1.22 106 Period of record 1971-91 1956-95 1973-82 1973-82 1973-83, 1985-89 1973-82 1969-95 1913, 1962-95 1971-95 1973-82 1964-82 1973-89 1964-86 1935-95 1973-82 1966-95 1973-82 1947-95 1955, 1959-67, 1969-71, 1986-88 1944-91 1945-91 1973-82 1970-86 1973-82 1946-95 Water year 1979 1960 1961 1981 1974 1979 1973 1979 1964 1979 1979 1978 1964 1979 1979 1937 1989 1979 1983 1975 1974 1991 1970 1955 1955 1944 1955 1974 1985 1981 1982 1950 Stage (ft) 13.18 32.76 35.35 9.93 9.36 9.06 7.59 11.35 20.02 15.30 10.85 12.34 12.58 10.71 15.07 22.43 23.07 11.98 19.07 19.72 9.89 17.58 11.35 13.09 15.90 16.44 14.12 6.75 4.87 7.89 13.90 14.95 Dis- charge (tf/s) 5,400 22,000 20,200 220 285 215 125 9,270 14,700 11,500 350 1,680 350 5,900 18,700 10,200 170 7,880 7,610 222 4,230 250 3,430 2,000 3,180 34 52 110 795 744 Significant floods during 1970-89 Date (month/ day/year) 7/13/79 1/19/73 5/24/81 5/31/74 7/27/79 8/01/73 7/26/79 5/27/83 7/26/79 6/10/79 5/12/78 6/09/79 4/28/70 6/09/79 4/08/89 5/6/83 8/16/79 5/01/83 5/31/74 6/14/81 5/16/70 6/15/81 7/02/83 4/04/74 4/10/85 6/14/81 3/22/82 Stage («) 13.18 20.97 9.93 9.36 9.06 7.59 11.35 -- 15.30 10.85 12.34 10.71 12.79 15.07 23.07 19.89 11.98 19.07 9.89 16.70 11.35 16.18 12.34 6.75 4.87 7.89 13.90 Dis- charge (tf/s) 5,400 3,340 220 285 215 125 9,270 2,810 11,500 350 1,680 350 3,600 5,900 10,200 12,100 170 7,880 222 4,000 250 3,260 3,120 34 52 110 795 Regu- lated during flood1 N Y N N N N N Y N N N N N Y Y Y N N N N N N N N Y N N Recur- rence interval (years) 100-150 <5 10-25 10-25 <10 10-25 >500 <10 >200 25-50 100 50 <10 >100 <10 10 <10 15 10-25 50 <10 15 100 10 50 10-25 60 228 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 15. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Indiana Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 36) 04099610 04099750 04099808 04100165 04100222 04100252 04100295 04100465 04100500 04101000 04179000 04179500 04179510 04180000 04181500 04182000 04183000 05515000 05515400 05515500 05516000 05516150 05516500 05517000 05517400 05517500 Station name Pretty Lake inlet near Stroh, IN Pigeon River near Scott, IN Little Elkhart River at Middlebury, IN Wible Lake inlet near Kendallville, IN North Branch Elkhart River at Cosperville, IN Forker Creek near Burr Oak, IN Rimmell Branch near Albion, IN Turkey Creek at Syracuse, IN Elkhart River at Goshen, IN St. Joseph River at Elkhart, IN St. Joseph River at Cedarville, IN Cedar Creek at Auburn, IN Cecil Metcaff Ditch near Auburn, IN Cedar Creek near Cedarville, IN St. Marys River at Decatur, IN St. Marys River near Fort Wayne, IN Maumee River at New Haven, IN Kankakee River near North Liberty, IN Kingsbury Creek near Laporte, IN Kankakee River at Davis, IN Yellow River near Bremen, IN Walt Kimble Ditch near Lapaz, IN Yellow River at Plymouth, IN Yellow River at Knox, IN West Arm Payne Ditch near North Judson, IN Kankakee River at Dunns Bridge, IN Total drainage area (mi2) 1.96 361 97.6 2.47 142 19.2 10.7 43.8 594 3,370 763 87.3 0.78 270 621 762 1,967 174 7.08 537 135 1.50 294 435 2.58 1,352 Period of record 1964-80 1969-95 1980-95 1973-82 1972-95 1970-95 1980-95 1970-87 1925-28, 1932-95 1903-27, 1943, 1948-95 1932, 1956-82 1943-78, 1980-82 1973-82 1947-95 1932-95 1931-95 1947-95 1951-95 1971-86 1926-29, 1932-95 1956-82 1973-82 1949-95 1944-95 1973-82 1949-95 Water year 1971 1982 1985 1982 1973 1982 1985 1991 1980 1981 1985 1985 1982 1908 1982 1982 1982 1982 1991 1943 1982 1959 1982 1982 1982 1968 1984 1981 1982 1985 1982 1978 1982 1955 1955 1981 1982 1955 Stage (ft) 9.30 7.85 10.52 5.87 6.70 8.12 7.00 7.03 9.88 12.82 5.52 11.87 11.94 27.91 21.94 10.63 10.50 13.38 23.40 24.40 19.42 19.66 25.49 9.01 9.04 6.35 6.83 13.52 15.17 17.68 10.08 17.13 13.75 8.33 13.20 Dis- charge (ftVs) 33 2,370 2,470 50 22 919 480 323 495 397 243 6,360 6,180 26,000 18,600 14,500 2,100 140 5,580 12,000 10,900 13,600 12,600 26,600 908 629 188 73 1,920 1,620 2,800 2,750 290 5,390 5,660 230 5,870 5,300 Significant floods during 1970-89 Date (month/ day/year) 2/05/71 3/21/82 2/24/85 3/14/82 3/23/82 2/24/85 4/03/80 3/31/85 3/14/82 2/24/85 2/27/85 3/17/82 3/14/82 3/14/82 3/14/82 3/14/82 3/14/82 3/17/82 2/27/85 3/17/82 2/24/85 6/23/84 3/20/82 5/03/83 3/16/82 3/13/82 3/16/82 3/18/82 2/28/85 6/13/81 3/23/82 3/04/85 Stage (ft) 9.30 7.85 10.52 5.87 8.12 7.00 9.88 5.52 11.94 11.87 27.05 21.94 10.63 10.50 12.98 24.40 19.66 25.49 24.19 9.01 8.64 6.35 12.86 15.17 10.08 16.37 13.25 12.15 8.33 13.18 Dis- charge (fts/s) 33 2,370 2,470 50 919 480 495 243 6,180 6,360 18,800 14,500 2,100 140 5,340 10,900 12,600 26,600 23,800 908 820 188 1,920 1,730 2,800 290 4,730 5,280 4,010 230 5,870 5,370 Regu- lated during flood1 N N N N N Y N Y N N Y Y N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 25-50 25 100 10-25 40 >100 10 25 80 100 50 100 100 25 25 25 35 60 25 >100 100 50-100 >100 50 >100 10-25 >100 >100 25 25-50 100 40 Significant Floods, 1970 Through 1989, Indiana 229 Table 15. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Indiana Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 36) 05517530 05517780 05518000 05519000 05522000 05523000 05523500 05524300 Station name Kankakee River near Kouts, IN Cobb Ditch tributary near Valparaiso, IN Kankakee River at Shelby, IN Singleton Ditch at Schneider, IN Iroquois River near North Marion, IN Bice Ditch near South Marion, IN Slough Creek near Collegeville, IN Yeoman Ditch tributary near Rensselaer, IN Total drainage area (mi2) 1,376 0.39 1,779 123 144 21.8 83.7 0.57 Period of record 1975-95 1973-89 1923-95 1949-88, 1990-95 1949-93 1949-93 1949-51, 1953-82 1972-81 Water year 1982 1983 1982 1985 1976 1991 1958 1979 1958 1968 1979 1979 Stage (ft) 14.52 9.54 - 12.25 11.24 12.54 15.09 11.41 12.02 16.88 17.19 9.82 Dis- charge (ft3/s) 6,420 82 7,650 6,340 3,550 2,460 2,040 1,080 780 2,390 1,420 250 Significant floods during 1970-89 Date (month/ day/year) 3/24/82 7/02/83 3/26/82 3/09/85 3/05/76 3/06/79 3/04/79 5/15/70 3/04/79 Stage (") 14.52 9.54 - 12.25 11.24 14.68 11.41 16.16 9.82 Dis- charge (ft3/s) 6,420 82 7,650 6,340 3,550 1,820 1,080 2,180 250 Regu- lated during flood1 N N N N N N N N N Recur- rence interval (years) >100 10-25 >100 30 >100 50 50 15 10-25 1 Regulated during flood: N, no; Y, yes. 230 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Iowa Hydroclimatology Iowa is located in the inidcontinent interior and is affected by various weather patterns during the year. Iowa's climate is governed by airmasses from the Gulf of Mexico and the Pacific Ocean. These airmasses are supplemented by moisture evaporated from the land surface and from lakes and reservoirs. Moisture from the Gulf of Mexico predominates the air movement from April to September and accounts for more than 70 percent of the precipitation in Iowa (Paulson and others, 1991). Iowa's annual precipitation ranges from 25 in. in the northwest to 38 in. in eastern and southern Iowa. The statewide mean annual precipitation is 32 in. (Paulson and others, 1991). Floods in Iowa typically are caused by two types of weather conditions. During the winter, low temper- atures and a stationary jetstream can produce large snow accumulations over extensive areas. When the snowpack melts, frozen soil prevents any absorption, resulting in swollen streams and occasional floods. In the late spring and early summer, floods are caused by thunderstorms in which local rains of 4 or more inches per day can occur. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the factors affecting the magnitude of maximum discharges for streams in Iowa include con- tributing-drainage area, a relative-relief factor, a drain- age-frequency factor, and the 2-year, 24-hour precipitation intensity. The relative-relief factor is the ratio of basin relief (difference between the highest and lowest basin elevations) and the basin perimeter as measured along the entire drainage-basin divide on 125,000-scale topographic maps. The drainage- frequency factor is the number of first-order streams per square mile (Hash, 1993). Significant Floods In June 1975, parts of Ames, Iowa, were affected by severe flooding from Squaw Creek and the South Shunk River. Maximum discharges at two gaging sta- tions exceeded the 100-year recurrence interval. The flood was caused by intense storms, which were all the more unusual because, statewide, the climate at that time subsequently was deemed to be a drought. Significant flooding occurred in June and July 1982 in east-central, south-central, and south- western Iowa. Rain from locally intense thunderstorms falling on saturated ground resulted in maximum dis- charges exceeding the 25-year recurrence interval at 7 percent of the State's streamflow-gaging stations. Maximum discharges at three stations exceeded the 100-year recurrence interval. The location of streamflow-gaging stations in Iowa that had significant floods for 1970-89 is shown in figure 37 by station number. The specific data for each significant flood are listed in table 16. A signifi- cant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Hash, D.A., 1993, Estimating design flood discharges for streams in Iowa using drainage-basin and channel- geometry characteristics: U.S. Geological Survey Water-Resources Investigations Report 93^4062,96 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Iowa 231 6861 'spue|S| ujBjjA au.1 PUB ' 'sa)ei§ paiiun au.1 "! SOUTH DAKOTA 6 Table 16. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Iowa [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 37) 05388310 05388400 05388600 05411600 05414350 05414400 05414450 05414500 05414600 05417530 05418450 05420560 05420600 05420620 05421300 05421550 05421890 05422000 05448900 05449500 05451500 05451700 Station name Waterloo Creek near Dorchester, LA Wexford Creek near Harpers Ferry, LA Paint Creek near Waterville, IA Turkey River at Spillville, LA Little Maquoketa River near Graf, LA Middle Fork Little Maquoketa River near Rickardsville, LA North Fork Little Maquoketa River near Rickardsville, LA Little Maquoketa River near Durango, LA Little Maquoketa River tributary at Dubuque, IA Plum Creek at Earlville, IA North Fork Maquoketa River at Fulton, LA Wapsipinicon River near Elma, IA Little Wapsipinicon River tributary near Riceville, IA Little Wapsipinicon River near Acme, IA Pine Creek tributary number 2 at Winthrop, LA Buffalo Creek above Winthrop, IA Silver Creek at Welton, IA Wapsipinicon River near De Witt, LA East Branch Iowa River tributary near Garner, IA Iowa River near Rowan, LA Iowa River at Marshalltown, LA Timber Creek near Marshalltown, LA Total drainage area (mi2) 43.6 11.9 56.0 177 39.6 30.2 21.6 130 1.54 41.1 516 95.2 0.90 7.76 0.70 68.2 9.03 2,330 5.98 429 1,532 118 Period of record 1970-87, 1989-93 1953-87, 1989 1951, 1953-85 1947, 1956-73, 1978-91 1951-94 1951-72, 1976-89, 1991-94 1951-94 1925, 1935-83, 1986-92, 1994 1951-65, 1967-92, 1994 1966-91 1974, 1977-91 1959-92 1953-94 1953-91, 1993 1953-87, 1989, 1993 1957-86, 1989-90 1966-94 1935-94 1952-86 1941-76, 1978-94 1903, 1915-27, 1929-30, 1933-94 1947, 1950-94 Water year 1978 1978 1974 1947 1951 1972 1972 1972 1957 1972 1974 1981 1974 1979 1993 1962 1968 1968 1974 1986 1990 1984 1954 1984 1918 1993 1977 Stage (ft) 704.80 9.78 19.24 18.40 15.78 27.70 14.02 23.13 7.98 15.31 88.75 17.26 14.94 15.38 5.71 9.02 7.26 19.36 89.77 89.82 14.19 10.46 14.88 15.00 17.74 20.77 17.69 Dis- charge (ft3/s) 9,380 8,100 19,000 10,000 7,220 23,000 7,180 40,000 1,650 1,250 6,200 10,700 10,100 6,420 2,470 2,380 570 14,100 4,820 2,050 31,100 660 8,460 8,450 42,000 20,400 12,000 Significant floods during 1970-89 Date (month/ day/year) 7/01/78 7/01/78 8/05/81 6/20/74 7/12/72 8/02/72 8/02/72 8/02/72 8/02/72 11/01/71 6/21/74 8/31/81 6/04/74 6/17/84 6/17/84 6/17/84 6/14/70 8/30/79 5/17/74 4/22/73 5/17/74 6/07/84 6/17/84 3/19/79 8/16/77 6/15/82 Stage (ft) 704.80 9.78 9.01 19.24 16.73 14.59 27.70 14.02 23.13 15.31 88.75 17.26 14.94 14.81 5.08 8.91 7.17 19.11 89.77 12.76 13.07 10.46 15.00 19.77 17.69 17.30 Regu- Dis- lated charge during (ft3/3) flood1 9,380 8,100 5,800 19,000 8,600 6,100 23,000 7,180 40,000 1,250 6,200 10,700 10,100 6,580 920 2,100 470 11,000 4,820 27,000 29,900 660 8,450 20,900 12,000 9,940 N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) ~ -- 15-20 -- >100 >100 30-35 50-60 5-20 20-30 5-10 10-15 35-40 -- 20 30-35 50 -- 60-70 15-20 95-100 35-40 Significant Floods, 1970 Through 1989, Iowa 233 Table 16. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Iowa Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 37) 05451900 05451955 05452000 05452200 05453600 05453750 05453850 05453950 05455000 05455010 05455100 05455210 05455230 05455280 05455300 05455350 05455700 05458560 05459010 05459490 05462750 05464130 05464133 05464137 05464145 Station name Richland Creek near Haven, IA Stein Creek near Clutier, IA Salt Creek near Elberon, IA Walnut Creek near Hartwick, IA Rapid Creek below Morse, IA Rapid Creek southwest of Morse, IA Rapid Creek tributary number 3 near Oasis, IA Rapid Creek tributary near Iowa City, IA Ralston Creek at Iowa City, IA South Branch Ralston Creek at Iowa City, IA Old Mans Creek near Iowa City, IA North English River at Guernsey, IA Deep River at Deep River, IA South English River tributary near Barnes City, IA South English River near Barnes City, IA South English River tributary number 2 near Montezuma, IA Iowa River near Lone Tree, IA Beaverdam Creek near Sheffield, IA Elk Creek at Kensett, IA Spring Creek near Mason City, IA Beaver Creek tributary near Aplington, IA Fourmile Creek near Lincoln, IA Half Mile Creek near Gladbrook, IA Fourmile Creek near Traer, IA Twelvemile Creek near Traer, IA Total drainage area (mi2) 56.1 23.4 201 70.9 8.12 15.2 1.62 3.43 3.01 2.94 201 81.5 30.5 2.51 11.5 0.52 4,293 123 58.1 29.3 11.6 13.8 1.33 19.5 43.8 Period of record 1918, 1950-94 1972-87, 1989-94 1944, 1946-94 1947, 1950-94 1951-92 1951-87, 1989-92 1951-86, 1990-92 1951-86, 1988, 1990-92 1925-87 1962, 1964-86, 1988-94 1951-87, 1989-94 1960, 1966-94 1960, 1966-93 1953-76 1953-87 1953-85 1944, 1957-94 1966-89 1966-89 1966-91, 1993 1966-91 1963-67, 1970-74, 1977-80 1963-67, 1970-74, 1977-80 1963-74, 1976-80 1966-87, 1989-92 Water year 1991 1982 1993 1991 1947 1987 1972 1965 1972 1971 1956 1972 1962 1982 1993 1982 1970 1970 1982 1961 1993 1979 1969 1986 1980 1983 1979 1974 1979 1979 1974 1979 1990 Stage (ft) 26.71 77.92 20.85 16.93 17.70 25.99 29.74 24.16 26.57 4.15 9.06 9.47 10.50 15.25 17.61 87.43 83.85 9.04 13.77 13.65 22.94 57.51 59.82 91.91 90.32 94.27 13.51 13.98 9.57 11.93 12.91 88.36 88.93 Dis- charge (ft3/s) 12,200 11,400 36,600 7,900- 3,000 4,300 1,200 2,000 2,200 1,690 1,070 -- 13,500 13,000 7,460 6,200 900 2,200 344 57,100 4,400 -- 1,450 4,500 3,000 1,100 893 611 1,450 1,040 3,800- Significant floods during 1970-89 Date (month/ day/year) 5/28/74 6/15/82 6/15/82 7/02/83 7/17/72 6/21/87 7/17/72 7/17/72 7/17/72 2/19/71 7/17/72 7/17/72 5/15/82 9/18/77 6/15/82 5/14/70 3/02/70 8/05/70 7/18/82 5/28/74 5/19/74 8/22/79 3/20/86 5/30/80 5/19/83 7/03/79 6/12/79 3/18/79 7/03/79 Stage (ft) 24.00 77.92 20.00 16.65 25.66 25.99 29.74 24.11 26.57 4.15 9.01 9.47 15.25 87.36 87.43 83.85 9.04 13.16 13.77 13.53 18.97 57.51 91.91 90.32 94.27 13.51 9.57 11.93 88.36 Dis- charge (tf/s) 7,000 11,400 33,200 7,100 2,800 3,000 4,300 1,200 2,000 2,200 1,760 1,070 13,500 7,000 7,460 6,200 900 1,850 2,200 340 35,700 4,400 1,450 4,500 3,000 1,100 611 1,450 3,800 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N Y N N N N N N N N Recur- rence interval (years) 50-55 >100 70-75 15-20 20 25 30-35 - 40 75 35 10-25 50 20-25 35-40 -- 10-25 30 50 50 25-35 - 25-50 - 10-25 10-25 75-100 25-50 - 234 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 16. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Iowa Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 37) 05464560 05464640 05465500 05471000 05472290 05472390 05472445 05473500 05474000 05474500 05481680 05481690 05481950 05482135 05482170 05482300 05483000 05484000 05484500 05484800 05485640 05486000 05486490 05487350 05487470 Station name Prairie Creek at Blairstown, IA Prairie Creek at Fairfax, IA Iowa River at Wapello, IA South Skunk River below Squaw Creek near Ames, IA Sugar Creek near Searsboro, IA Middle Creek near Lacey, IA Rock Creek at Sigourney, IA Big Creek near Mount Pleasant, IA Skunk River at Augusta, IA Mississippi River at Keokuk, IA Beaver Creek at Beaver, IA West Beaver Creek at Grand Junction, LA Beaver Creek near Grimes, LA North Raccoon River near Newell, LA Big Cedar Creek near Varina, IA North Raccoon River near Sac City, LA East Fork Hardin Creek near Churdan, LA South Raccoon River at Redfield, IA Raccoon River at Van Meter, LA Walnut Creek at Des Moines, LA Fourmile Creek at Des Moines, LA North River near Norwalk, IA Middle River near Indianola, IA South Otter Creek tributary near Woodburn, IA South River near Ackworth, IA Total drainage area (mi2) 87.0 178 12,499 556 52.7 23.0 26.3 106 4,303 119,000 38.5 12.6 358 233 80.0 700 24.0 994 3,441 78.4 92.7 349 503 0.71 460 Period of record 1966-84, 1986-87 1967-82 1903-94 1944, 1953-79, 1990, 1992-94 1966-88 1966-94 1966-88 1948, 1956-79 1903, 1915-94 1851, 1878-1989, 1991-94 1966-90 1966-87, 1989 1960-94 1983-93 1960-91 1954, 1959-94 1952-91 1940-94 1915-94 1972-94 1972-79, 1981-94 1940-94 1940-94 1955-70, 1972-74, 1976, 1978-84 1930, 1940-94 Water year 1982 1970 1979 1993 1990 1993 1975 1974 1976 1970 1973 1948 1973 1993 1979 1986 1979 1993 1984 1962 1979 1979 1990 1990 1986 1993 1958 1993 1986 1977 1974 1947 1990 1947 1981 1990 1981 Stage (ft) 84.65 85.05 14.63 28.10 28.91 25.55 25.57 92.85 90.06 91.29 25.58 27.00 27.05 27.58 89.99 89.01 89.51 16.58 16.73 13.68 16.29 18.02 20.14 10.20 10.78 26.98 29.04 26.34 18.32 14.64 14.84 25.30 25.33 26.40 14.06 31.25 32.85 Dis- charge (tf/s) 4,750 4,600 8,140 111,000 86,600 26,500 14,700 4,600 9,650 4,100 10,500 -- 66,800 446,000 1,950 880 -- 14,300 2,850 2,080 2,050 13,100 9,930 754 737 44,000 35,000 70,100 12,500 5,380 5,340 32,000 22,600 34,000 1,670 38,100 32,700 Significant floods during 1970-89 Date (month/ day/year) 6/15/82 3/19/79 4/22/73 3/27/75 5/18/74 4/24/76 9/17/70 4/22/73 4/23/73 4/24/73 3/19/79 6/30/86 6/30/86 6/17/84 3/24/79 3/23/79 6/30/86 7/01/86 7/04/73 7/01/86 5/10/86 8/28/77 6/11/84 8/27/87 6/07/81 7/05/81 Stage (ft) 84.65 14.63 28.63 25.57 92.85 90.06 91.29 25.58 27.05 - 89.99 89.01 14.73 16.73 16.29 18.02 10.78 25.15 21.74 22.69 18.32 14.64 23.03 23.79 14.06 32.85 Dis- charge (ft3/s) 4,750 8,140 92,000 14,700 4,600 9,650 4,100 10,500 66,800 344,000 1,950 880 7,980 2,850 2,050 13,100 737 26,300 35,600 40,200 12,500 5,380 13,700 15,500 1,670 32,700 Regu- lated during flood1 N N Y N N N N N N Y N N N N N N N N N N N N N N N N Recur- rence interval (years) 25-50 10-25 50 40-45 50-75 >100 50-100 >100 >200 75-100 __ - 20-30 5-15 15-20 25 100 20 20 25 45 15 20 15 - 40 Significant Floods, 1970 Through 1989, Iowa 235 Table 16. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Iowa Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 37) 05487600 05487800 05487980 05488620 05489000 05489150 05489350 05489490 05494100 05495600 06483440 06483460 06486000 06599800 06600100 06600500 06601480 06602020 06602190 06602400 06605340 06605750 06605890 Station name South White Breast Creek near Osceola, IA White Breast Creek at Lucas, IA White Breast Creek near Dallas, IA Coal Creek near Albia, IA Cedar Creek near Bussey, IA Little Muchakinock Creek at Oskaloosa, IA South Avery Creek near Blakesburg, IA Bear Creek at Ottumwa, IA South Fox Creek tributary near West Grove, IA South Wyaconda River near West Grove, IA Dawson Creek near Sibley, IA Otter Creek near Ashton, IA Missouri River at Sioux City, IA Perry Creek near Merrill, IA Floyd River at Alton, IA Floyd River at James, IA Big Whiskey Slough near Remsen, IA West Fork Ditch at Hornick, IA Elliott Creek at Lawton, IA Monona-Harrison Ditch near Turin, IA Prairie Creek near Spencer, IA Willow Creek near Cornell, IA Waterman Creek at Hartley, IA Total drainage area (mi2) 28.0 128 342 13.5 374 9.12 33.1 22.9 0.55 4.69 4.35 88.0 314,600 8.17 268 886 12.9 403 34.8 900 22.3 78.6 28.7 Period of record 1953-81 1953-88, 1990-91 1962-94 1966-87, 1989-91 1946, 1948-94 1966-88 1965-90, 1992-94 1965-94 1953-56, 1958-60, 1962-66, 1968-70, 1972-74, 1976-83 1953-75 1952-94 1952-72, 1974-88 1929-94 1953-84, 1986-87, 1989-94 1953, 1956-94 1935-94 1967, 1969-71, 1973, 1975, 1978-86, 1988-90, 1993-94 1975-94 1966-90, 1993 1940-94 1966-94 1966-92 1966-89 Water year 1981 1981 1982 1982 1982 1970 1982 1982 1980 1982 1970 1985 1993 1979 1952 1971 1953 1962 1953 1983 1953 1983 1985 1979 1984 1984 1954 1984 1971 1994 1979 1975 1987 Stage («) 15.66 18.27 33.45 88.51 34.61 89.06 90.20 93.91 6.43 7.25 10.11 6.28 8.84 12.39 24.28 30.65 9.51 12.22 18.54 25.30 28.85 93.49 94.87 22.80 86.14 23.40 24.80 90.77 91.05 91.49 87.88 89.68 Dis- charge (ft3/s) 11,800 15,500 37,300 12,700 96,000 4,500 21,000 4,030 788 490 3,100 4,500 -- 18,000 441,000 80,000 2,540 2,000 45,500 16,300 71,500 18,000 1,120 9,960 3,150 21,000 13,300 2,200 -- 4,200 2,100 -- Significant floods during 1970-89 Date (month/ day/year) 6/07/81 7/04/81 8/26/87 7/16/82 7/03/82 7/03/82 9/17/70 7/03/82 7/03/82 6/02/80 9/15/70 5/15/85 8/21/79 2/19/71 6/23/77 6/20/83 6/21/83 4/23/85 6/19/84 6/12/84 2/19/71 6/18/84 7/04/71 3/22/79 6/04/75 Stage (ft) 15.66 18.27 17.52 33.45 88.51 34.61 89.06 90.20 93.91 6.43 10.11 6.28 12.39 30.65 9.38 18.54 28.85 93.49 22.80 86.14 23.03 24.80 90.77 91.49 87.88 Dis- charge (frVs) 11,800 15,500 11,500 37,300 12,700 96,000 4,500 21,000 4,030 788 3,100 4,500 18,000 80,000 2,100 16,300 18,000 1,120 9,960 3,150 19,900 13,300 2,200 4,200 2,100 Regu- lated during flood1 N N N N N N N N N N N N N Y N N N N N N N N N N N Recur- rence interval (years) >100 50-100 20-25 >200 50-100 >200 >100 - 25-50 - 25-50 >100 20-25 25 30-35 20 - 20 25-50 50-55 10 25-50 25-50 10-25 236 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 16. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Iowa Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 37) 06607200 06607500 06609500 06610510 06610520 06610600 06807410 06807470 06807720 06807760 06807780 06808500 06809210 06809500 06811760 06811800 06811820 06811840 06811875 06817000 06818598 06818750 06819110 06819185 06819190 Station name Maple River at Mapleton, IA Little Sioux River near Turin, IA Boyer River at Logan, IA Moser Creek near Earling, IA Mosquito Creek near Earling, IA Mosquito Creek at Neola, IA West Nishnabotna River at Hancock, IA Indian Creek near Emerson, IA Middle Silver Creek near Avoca, IA Middle Silver Creek near Oakland, IA Middle Silver Creek at Treynor, IA West Nishnabotna River at Randolph, IA East Nishnabotna River near Atlantic, IA East Nishnabotna River at Red Oak, IA Tarkio River near Elliott, IA East Tarkio Creek near Stanton, I A Tarkio River tributary near Stanton, IA Tarkio River at Stanton, IA Snake Creek near Yorktown, IA Nodaway River at Clarinda, IA Platte River near Stringtown, IA Platte River near Diagonal, IA Middle Fork 102 River near Gravity, IA East Fork 102 River at Bedford, IA East Fork 102 River near Total drainage area (mi2) 669 3,526 871 21.6 32.0 131 609 37.3 3.21 25.7 42.7 1,326 436 894 10.7 4.66 0.67 49.3 9.10 762 51.7 217 34.5 85.4 92.1 Period of record 1942-94 1940-94 1881, 1918-25, 1938-94 1966-90, 1993-94 1965-79 1952-94 1960-94 1966-91, 1993 1953-84, 1986 1953-94 1953-55, 1957-90 1947, 1949-94 1958, 1961-94 1917-25, 1936-94 1952-87, 1989-91, 1993 1952-91, 1993-94 1952-84, 1987, 1992-93 1952, 1954-56, 1958-91 1966-91 1918-25, 1936-94 1966-88 1967-91 1966-87, 1989, 1993-94 1984-94 1960-83 Water year 1978 1950 1983 1971 1990 1881 1984 1972 1958 1978 1993 1982 1976 1991 1973 1987 1949 1958 1972 1972 1993 1982 1967 1967 1967 1987 1947 1974 1989 1987 1973 1986 1993 1974 Stage (ft) 16.74 22.10 26.54 27.44 22.54 25.00 87.89 31.18 23.26 31.28 23.52 92.63 11.21 15.54 17.06 24.50 24.60 22.49 22.81 27.43 12.98 13.57 13.74 5.18 28.56 95.24 25.30 92.09 23.60 23.67 83.65 23.47 23.85 20.72 Dis- charge (ft3/s) 20,800 13,000 31,200 30,000 30,800 9,600 12,000 17,300 11,900 30,100 15,800 1,200 2,500 3,700 40,800 16,000 34,200 26,700 38,000 4,640 2,500 4,790 835 22,500 3,080 31,100 3,120 8,630 8,580 5,800 9,570 9,170 9,980 Significant floods during 1970-89 Date (month/ day/year) 9/12/78 6/21/83 2/19/71 6/21/83 6/16/84 2/19/71 6/15/84 9/11/72 9/11/72 9/13/72 6/15/82 9/26/73 6/14/76 7/04/73 7/04/73 8/08/87 5/26/87 9/12/72 9/13/72 5/26/87 5/26/87 5/26/87 5/26/87 7/09/87 6/15/82 9/09/89 10/11/73 9/09/89 2/01/73 7/14/86 10/11/73 Stage (ft) 16.74 16.84 27.44 26.54 22.60 22.65 87.89 31.18 31.23 22.12 92.63 10.65 11.21 14.73 17.06 14.06 24.50 22.81 27.43 12.26 12.94 19.86 95.24 19.70 23.27 92.09 23.60 83.65 23.47 20.72 Dis- charge (ft3/*) 20,800 17,200 30,000 31,200 31,000 25,000 9,600 12,000 13,700 26,400 15,800 1,040 1,200 2,110 3,700 2,920 40,800 26,700 38,000 3,210 3,600 398 10,100 3,080 29,100 28,700 3,120 8,630 5,800 9,570 9,980 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 30 15 10 10 10 15 10-25 45-50 20 20-25 >100 -- 40 50-100 25 50 30-35 >100 25-50 25-50 " 15 10-25 20 15 25-50 20-25 " 20 20 Bedford, IA Significant Floods, 1970 Through 1989, Iowa 237 Table 16. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Iowa Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 37) 06903400 06903980 06903990 06904010 06904040 Total drainage Station name Chariton River near Chariton, IA Chariton River near Udell, IA Cooper Creek at Centerville, IA Chariton River near Moulton, IA Chariton River at Coal City, IA area (mi2) 182 631 47.8 740 816 Period of record 1947, 1960, 1966-94 1973-87, 1991-94 1966-89 1980-89, 1991-94 1973-74, 1976, 1978-84 Water year 1992 1982 1982 1982 1981 1982 Stage (ft) 29.32 860.22 80.41 36.83 823.94 823.97 Dis- charge (ft3/s) 37,700 8,000 7,000 11,200 7,400 7,400 Significant floods during 1970-89 Date (month/ day/year) 7/04/81 7/16/82 7/16/82 7/16/82 7/05/81 Stage (ft) 23.14 860.22 80.41 36.83 823.94 Dis- charge (tf/s) 16,600 8,000 7,000 11,200 7,400 Regu- lated during flood1 N Y N Y Y Recur- rence interval (years) 25 - 25-50 - - 1 Regulated during flood: N, no; Y, yes. 238 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Kansas Significant Floods Hydroclimatology Kansas' location in the midcontinent provides for several sources of moisture that affect the State's cli- mate. The Gulf of Mexico provides the primary source of moisture for the State. The Pacific Ocean is a sec- ondary source of moisture for Kansas. Moisture from Pacific airmasses is reduced as it crosses the oro- graphic barrier of the Rocky Mountains prior to reach- ing Kansas. During the winter, cold, dry Canadian airmasses dominate the weather patterns resulting in relatively dry winters. Precipitation in the State results mostly from thunderstorms that occur in the late spring and continue throughout the summer. Annual precipitation in the southeast corner of the State aver- ages 40 in. Along the western border of the State, mean annual precipitation is 15 in. or less (Paulson and others, 1991). Frontal boundaries between the cold, dry Cana- dian air and the warmer and wetter air from the Gulf of Mexico can produce storm systems with excessive precipitation anytime during the year. During the spring and summer, the frontal systems commonly trigger severe thunderstorms with intense rainfall. Regional floods occur usually after recurring storm systems move along stalled frontal boundaries. Slow- moving or "training" thunderstorms can cause local- ized flash floods. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, factors affecting the magnitude of maximum discharges for streams in Kansas are con- tributing-drainage area, 2-year, 24-hour rainfall, main- channel slope, and soil permeability index (Jennings and others, 1994). Significant flooding occurred in September and October 1973. This flood affected south-central, north- central, and east-central Kansas. The flood was a result of abundant precipitation that continued for several weeks. During this period, as much as 11 in. of rain fell in the Solomon, Smoky Hill, and Big Blue River Basins in the 4 days from September 25-28. Some areas reported as much as 7 in. of rain on September 26. Significant flooding occurred in Kansas in 1986. Eleven percent of the streamflow-gaging stations in the State recorded significant discharges. There were two flooding periods; the first was in late June and early July when streams in the northern part of the State flooded, and the second was in October when significant flooding occurred in the southern two- thirds of the State. The location of streamflow-gaging stations in Kansas that had significant floods for 1970-89 is shown in figure 38 by station number. The specific data for each significant flood are listed in table 17. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Kansas 239 6861. MBnoJiy. QLBl 'spue|S| u|6j|A 3MJ pue 'ooid 'sajejs p3J!Ufi 3MJ u; spooy lueofjmSis jo Ajeuiuins (fi C 3 CO 00 1 o 2-6' 3 tt- (B 0) 1 (Q 0) (Q3' (Q tt. 5' 3 CO > CD if| tfi-. t ^ ' c/3 m to " I" O ^ t£3 g "' S" | m 3 oo ' ill S ' s s 1 3 H 1 si 1 11 s |f Iu o o ex w -5 Q- C9. I s I to 5 ^ 3 9 g oo 5 co Q- =* 3 I CO 0) (0 Table 17. Maximum stage and discharge for period of record for streamf low-gag ing stations having significant floods during 1970-89 in Kansas [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 06813700 06814000 06815700 06818260 06844700 06844800 06844900 06846200 06847600 06847900 06848200 06848500 06853500 06853800 06855800 06855900 06856000 06856320 06856800 06862700 06863000 06863400 06863900 06864300 06864700 Station name Tennessee Creek tributary near Seneca, KS Turkey Creek near Seneca, KS Buttermilk Creek near Willis, KS White Clay Creek at Atchison, KS South Fork Sappa Creek near Brewster, KS South Fork Sappa Creek tributary near Goodland, KS South Fork Sappa Creek near Achilles, KS Beaver Creek tributary near Ludell, KS Prairie Dog Creek tributary at Colby, KS Prairie Dog Creek above Keith Sebelius Lake, KS Prairie Dog Creek tributary near Norton, KS Prairie Dog Creek near Woodruff, KS Republican River near Hardy, NE White Rock Creek near Burr Oak, KS Buffalo Creek near Jamestown, KS Wolf Creek near Concordia, KS Republican River at Concordia, KS Elk Creek at Clyde, KS Moll Creek near Green, KS Smoky Hill River near Schoenchen, KS Smoky Hill River at Pfeifer, KS Big Creek tributary near Ogallah, KS North Fork Big Creek near Victoria, KS Smoky Hill River tributary at Dorrance, KS Spring Creek near Kanopolis, KS Total drainage area (mi2) 0.90 276 3.74 13.1 74.0 4.98 446 10.2 7.53 590 1.02 1,007 22,401 227 330 56.0 23,560 73.0 3.60 5,750 6,033 4.81 54.0 5.39 9.84 Period of record 1957-89 1949-94 1957-93 1972-94 1968-89 1957-89 1960-94 1957-89 1957-94 1963-94 1957-91 1929-32, 1945-94 1903-15, 1932-94 1950, 1958-94 1960-90 1963-81 1903, 1915, 1935, 1941-94 1970-71, 1973-94 1957-90 1965-94 1970-85 1957-94 1963-87 1957-94 1957-89 Water year 1959 1974 1949 1984 1982 1979 1979 1975 1982 1975 1975 1972 1977 1957 1947 1957 1935 1973 1950 1974 1974 1935 1993 1973 1964 1972 1970 1993 1970 1987 1974 1975 1967 Stage (ft) 18.64 24.77 25.17 20.18 16.07 8.65 18.49 10.47 11.42 15.54 27.44 12.81 13.15 14.15 - 26.70 19.40 25.06 32.60 19.65 17.95 19.77 15.30 17.94 17.95 16.17 16.55 19.30 15.20 21.34 14.62 16.29 Dis- charge (ft3/s) 1,220 21,400 12,000 6,000 5,410 1,770 3,450 5,310 2,340 880 4,300 8,880 1,590 620 15,000 8,910 225,000 15,800 -- 27,800 4,180 207,000 37,700 6,000 1,780 1,070 20,400 20,200 30,000 4,100 26,400 2,400 3,000 Significant floods during 1970-89 Date (month/ day/year) 9/12/77 10/11/73 6/08/84 6/08/82 5/02/79 5/02/79 6/19/75 6/1 1/70 6/18/75 6/18/75 9/06/72 6/21/86 9/03/77 10/01/83 9/03/73 7/01/89 10/12/73 10/11/73 10/12/73 9/26/73 9/06/72 6/14/70 6/14/70 3/24/87 8/09/74 9/03/75 6/11/71 Stage (ft) 18.49 24.77 20.18 16.07 8.65 18.49 10.47 15.37 15.54 27.44 12.81 14.06 23.48 13.65 25.06 23.76 19.65 17.95 13.98 15.30 17.95 16.17 19.30 15.20 21.34 14.62 15.94 Dis- charge (ft3/s) 1,150 21,400 6,000 5,410 1,770 3,450 5,310 850 880 4,300 8,880 595 4,580 17,400 15,800 11,100 27,800 4,180 28,900 6,000 1,070 20,400 30,000 4,100 26,400 2,400 2,500 Regu- lated during flood1 N N N N N N N N N N N N Y Y N N N N Y N N Y Y N N N N Recur- rence interval (years) 20-25 15 50 40 20-25 30 25-50 5-10 5-10 >100 >100 10-25 2-5 2-5 >100 50-100 >100 25-50 2-5 50-100 5-10 -- .. 40-50 >100 50 10-15 Significant Floods, 1970 Through 1989, Kansas 241 Table 17. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 06866490 06866500 06867800 06868200 06868300 06868400 06868700 06868900 06869500 06869950 06870200 06870300 06871900 06873300 06873700 06874500 06875800 06875900 06876200 06876700 06876900 06877120 06877200 06877500 06878000 Station name Dry Creek at Mentor, KS Smoky Hill River near Mentor, KS Cedar Creek tributary near Bunker Hill, KS Saline River at Wilson Dam, KS Coon Creek tributary near Luray, KS Wolf Creek near Lucas, KS North Branch Spillman Creek near Ash Grove, KS Bullfoot Creek tributary near Lincoln, KS Saline River at Tescott, KS Mulberry Creek near Salina, KS Smoky Hill River at New Cambria, KS Gypsum Creek near Gypsum, KS Deer Creek near Phillipsburg, KS Ash Creek tributary near Stockton, KS Kill Creek near Bloomington, KS East Limestone Creek near Ionia, KS Limestone Creek near Glen Elder, KS Solomon River near Glen Elder, KS Middle Pipe Creek near Miltonvale, KS Salt Creek near Ada, KS Solomon River at Niles, KS Mud Creek at Abilene, KS West Turkey Creek near Elmo, KS Turkey Creek near Abilene, KS Chapman Creek near Chapman, KS Total drainage area (mi2) 37.0 8,358 0.99 1,917 6.53 163 26.1 2.64 2,820 250 11,730 120 65.0 0.89 52.0 25.6 210 5,340 10.2 384 6,770 87.0 26.6 143 300 Period of record 1971-77, 1979-89, 1991 1903, 1923-32, 1935, 1938, 1948-94 1957-77 1964-94 1957-94 1959-90 1963-77 1957-89 1919-94 1961-89, 1991-94 1963-94 1903, 1929, 1951, 1955-90 1967-81 1957-93 1964-81 1934-38, 1957-89 1965-86 1965-94 1957-77 1960-94 1897-1903, 1918-94 1970-94 1957-77 1951, 1959-90 1951, 1954-94 Water year 1974 1903 1938 1975 1973 1982 1987 1982 1974 1989 1951 1993 1971 1974 1974 1993 1965 1903 1977 1987 1993 1981 1935 1974 1985 1993 1973 1961 1951 1903 1974 1971 1951 1951 Stage (ft) 24.83 - 26.14 11.64 18.84 21.13 31.43 31.45 17.58 17.48 30.06 30.14 26.94 27.09 30.91 31.72 20.71 22.20 25.60 11.19 15.54 19.40 22.55 - 20.97 29.57 24.86 23.25 31.76 33.80 15.77 20.35 29.70 25.50 Dis- charge (ft3/s) -- 32,000 24,000 450 3,320 4,210 15,400 9,080 3,720 740 61,400 8,430 7,500 7,200 26,400 18,600 11,400- 5,190 760 530 5,220 3,920 5,500 2,080 9,410 6,400 16,000 178,000 30,000 7,500 2,700 23,700 46,700 Significant floods during 1970-89 Date (month/ day/year) 10/11/73 10/11/73 9/03/75 4/06/73 8/26/77 7/02/82 7/02/82 4/14/87 10/11/73 5/22/71 7/15/89 4/01/73 4/16/87 5/22/71 9/29/73 10/12/73 10/11/73 9/03/77 5/31/87 9/25/81 9/26/73 10/12/73 4/14/87 9/26/73 7/03/82 9/28/73 10/11/73 10/11/73 5/23/71 5/22/71 10/12/73 Stage (ft) 24.85 24.82 11.64 18.84 20.30 21.13 31.45 31.43 17.58 14.02 17.48 29.59 29.77 26.94 30.26 30.91 20.30 25.60 11.19 19.40 22.54 - 28.31 24.86 22.81 30.38 30.92 15.77 20.35 27.36 24.08 Dis- charge (ft3/s) - 20,300 450 3,320 2,000 4,210 9,080 15,400 3,720 500 740 9,800 9,110 7,500 22,000 26,400 8,100 5,190 760 5,220 2,100 5,500 7,470 6,400 12,800 28,500 52,400 7,500 2,700 16,000 15,800 Regu- lated during flood1 N Y N Y N N N N N N N Y Y N Y Y N N N N N N Y N N Y Y N N N N Recur- rence interval (years) 25-50 50 .. 10-15 50 25-30 100 25-30 25-30 50-60 10 5-10 15 .. -- 20-25 5-10 25-50 15-20 15-20 >100 - >100 20-25 25 >100 10-15 5-10 25-35 35 242 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 17. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 06879100 06879815 06882510 06884100 06884200 06884300 06884400 06884900 06885500 06886500 06887200 06888030 06888300 06888500 06888900 06889100 06889120 06889140 06889160 06889200 06889500 06889550 06889630 06890000 06890100 Station name Kansas River at Fort Riley, KS Wildcat Creek at Manhattan, KS Big Blue River at Marysville, KS Mulberry Creek tributary near Haddam, KS Mill Creek at Washington, KS Mill Creek tributary near Washington, KS Little Blue River near Barnes, KS Robidoux Creek at Beattie, KS Black Vermillion River near Frankfort, KS Fancy Creek at Winkler, KS Cedar Creek near Manhattan, KS Vermillion Creek near Louisville, KS Rock Creek near Louisville, KS Mill Creek near Paxico, KS Blacksmith Creek tributary near Valencia, KS Soldier Creek near Goff, KS Soldier Creek near Bancroft, KS Soldier Creek near Soldier, KS Soldier Creek near Circleville, KS Soldier Creek near Delia, KS Soldier Creek near Topeka, KS Indian Creek near Topeka, KS Shunganunga Creek at Topeka, KS Lower Delaware River near Horton, KS Delaware River near Muscotah, KS Total drainage area (mi2) 44,870 74.0 4,777 1.64 344 3.20 3,324 40.0 410 174 13.4 297 128 316 1.31 2.06 10.5 16.9 49.3 157 290 9.72 33.5 19.0 431 Period of record 1964-94 1974-89 1985-94 1957-72, 1974-89 1960-94 1957-94 1958-94 1957-89 1948, 1951, 1954-94 1944, 1951, 1954-73, 1975-89 1957-94 1970-85 1959-90 1951, 1954-94 1957-89 1965-87 1965-88 1965-94 1965-94 1959-94 1929-94 1970-94 1970-94 1951, 1955-61, 1963-64, 1977-78 1970-94 Water year 1993 1977 1986 1968 1993 1983 1974 1960 1959 1993 1972 1944 1972 1993 1982 1984 1968 1951 1985 1970 1970 1970 1984 1982 1982 1929 1981 1973 1993 1977 1977 Stage (ft) 27.93 25.30 38.90 23.30 29.35 19.90 27.70 22.46 29.40 30.28 21.60 22.30 22.38 22.93 39.35 43.40 35.50 34.70 14.45 15.18 16.09 16.46 21.52 23.95 27.44 28.25 17.87 15.18 15.37 18.45 30.83 Dis- charge (ft3/s) 87,600 8,600 39,700 2,000 14,600 2,500 53,700 6,200 38,300 18,700 24,000 8,800 -- 14,000 -- 20,000 77,200 2,000 7,080 13,100 11,700 25,300 29,400 30,400 10,000 2,700 3,300 3,200 1,530 28,000 Significant floods during 1970-89 Date (month/ day/year) 10/14/73 6/18/77 7/06/86 10/11/73 6/18/83 6/18/83 10/12/73 7/21/73 10/11/73 9/07/72 9/06/72 6/09/82 6/09/84 9/26/73 9/12/77 2/22/85 5/10/70 5/10/70 5/10/70 6/09/84 6/09/82 6/09/84 6/09/82 6/10/84 9/13/77 7/27/81 6/09/82 7/27/81 7/20/73 9/12/77 9/13/77 Stage (ft) 23.74 25.30 38.90 19.20 29.13 19.90 27.70 22.30 30.06 21.60 22.38 39.35 34.76 32.21 13.47 14.45 15.18 16.09 16.46 15.31 21.40 21.52 23.95 22.81 21.31 25.90 27.44 17.87 15.18 18.45 30.83 Dis- charge (ft3/s) 59,400 8,600 39,700 1,200 12,300 2,500 53,700 6,000 36,400 24,000 8,800 14,000 17,000 42,200 1,300 2,000 7,080 13,100 11,700 8,660 23,900 25,300 29,400 16,700 21,900 25,000 30,400 2,700 3,300 1,530 28,000 Regu- lated during flood1 Y N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y N Recur- rence interval (years) - 35 5-10 20-25 10-15 25 70-75 5-10 25-35 75-100 25-35 20-25 20-25 25-35 10-25 50 >100 >100 >100 80-100 >100 >100 >100 40-50 20-25 30-40 50-100 10-25 10 - 25 Significant Floods, 1970 Through 1989, Kansas 243 Table 17. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 06890300 06890900 06891500 06891650 06892800 06892940 06893300 06893350 06910800 06911500 06911900 06912300 06913000 06913500 06913700 06915000 06915100 06915800 06916600 06916700 06917000 06917100 06917380 06917400 Station name Spring Creek near Wetmore, KS Delaware River below Perry Dam, KS Wakarusa River near Lawrence, KS Naismith Creek at Lawrence, KS Turkey Creek at Merriam, KS Turkey Creek at Kansas City, KS Indian Creek at Overland Park, KS Tomahawk Creek near Overland Park, KS Marais des Cygnes River near Reading, KS Salt Creek near Lyndon, KS Dragoon Creek near Burlingame, KS Dragoon Creek tributary near Lyndon, KS Marais des Cygnes River near Pomona, KS Marais des Cygnes River near Ottawa, KS Middle Creek near Princeton, KS Big Bull Creek near Hillsdale, KS Big Bull Creek at Paola, KS Marais des Cygnes River at La Cygne, KS Marais des Cygnes River near KS-MO State line, KS Middle Creek near Kincaid, KS Little Osage River at Fulton, KS Marmaton River tributary near Bronson, KS Marmaton River near Marmaton, KS Marmaton River tributary near Fort Scott, KS Total drainage area (mi2) 21.0 1,117 425 1.54 6.76 22.3 26.6 23.9 177 111 114 3.76 1,040 1,250 52.0 147 230 2,669 - 3,230 2.02 295 0.88 292 2.80 Period of record 1957-77 1970-94 1921, 1929-72, 1981-94 1974-88 1974-86 1974-87 1964-94 1970-82 1969-94 1940-94 1961-94 1957-90 1923-37, 1969-94 1895, 1897-98, 1902-05, 1909, 1912-13, 1915, 1919-94 1951, 1957-89 1951, 1958-94 1970-91, 1993-94 1985-94 1959-94 1957-90 1949-94 1957-90 1972-94 1957-94 Water year 1970 1984 1951 1977 1977 1983 1984 1982 1982 1951 1982 1981 1982 1929 1986 1951 1929 1981 1961 1951 1974 1985 1987 1957 1987 1969 1973 1987 1968 1987 Stage (ft) 23.00 -- 31.59 15.80 21.65 25.80 17.78 19.17 27.47 17.00 22.64 18.11 18.20 30.59 38.65 28.49 29.73 21.20 25.18 32.20 34.31 15.96 35.21 16.82 17.34 42.87 16.62 16.65 Dis- charge (ft3/s) 11,000 12,100 24,200 2,500 5,300 12,500 12,800 8,250 67,400 36,400 34,400 8,200 7,600 69,400 25,700 142,000 87,400 16,000 10,000 45,200 39,000 50,100 64,100 2,500 62,800 590 590 105,600 1,900 1,900 Significant floods during 1970-89 Date (month/ day/year) 5/10/70 7/09/84 6/30/88 6/24/77 9/12/77 5/01/83 6/09/84 8/13/82 5/29/82 6/16/75 6/19/77 5/29/82 6/11/81 5/29/82 10/10/85 6/12/81 10/12/85 6/11/81 10/22/85 10/11/73 2/24/85 6/25/77 10/04/86 8/20/89 10/03/86 4/22/73 10/03/86 10/03/86 Stage (ft) 23.00 -- 28.55 15.80 21.65 25.80 17.78 19.17 27.47 15.51 22.05 22.64 18.11 18.20 30.59 35.07 35.11 28.49 10.20 25.18 32.20 32.83 34.31 15.94 35.21 17.34 42.87 16.65 Dis- charge (ft3/s) 11,000 12,100 9,230 2,500 5,300 12,500 12,800 8,250 67,400 18,000 24,800 34,400 8,200 7,600 25,700 25,100 25,000 16,000 2,910 39,000 50,100 49,300 64,100 2,000 62,800 590 105,600 1,900 Regu- lated during flood1 N Y Y N N N N N N N N N N N Y Y Y N Y N Y Y Y N N N N N Recur- rence interval (years) 25-50 -- 2-5 25-50 >100 10-25 50-100 10-25 100 25-50 25-35 50-100 25-30 20-25 10-25 5 5 >100 -- >100 -- -- 10-15 >100 25 >100 25 244 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 17. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 07138600 07138650 07139700 07139800 07140300 07140600 07140700 07141200 07141300 07141800 07142100 07142300 07142620 07142700 07142860 07142900 07143100 07143300 07143330 07143500 07143600 07143665 07144200 07144300 07144325 Station name White Woman Creek tributary near Selkirk, KS White Woman Creek near Leoti, KS Arkansas River tributary near Dodge City, KS Mulberry Creek near Dodge City, KS White Woman Creek near Bellefont, KS Pawnee River tributary near Kalvesta, KS Guzzlers Gulch near Ness City, KS Pawnee River near Larned, KS Arkansas River at Great Bend, KS Otter Creek near Rush Center, KS Rattlesnake Creek tributary near Mullinville, KS Rattlesnake Creek near Macksville, KS Rattlesnake Creek near Raymond, KS Salt Creek near Partridge, KS Cow Creek near Claflin, KS Blood Creek near Boyd, KS Lower Cheyenne Creek tributary near Claflin, KS Cow Creek near Lyons, KS Arkansas River near Hutchinson, KS Little Arkansas River near Geneseo, KS Little Arkansas River near Little River, KS Little Arkansas River at Alta Mills, KS Little Arkansas River at Valley Center, KS Arkansas River at Wichita, KS Gypsum Creek at Oliver Street, Wichita, KS Total drainage area (mi2) 38.0 750 8.66 73.8 14.0 6.89 58.2 2,148 34,356 17.0 10.3 784 1,167 85.0 43.0 61.0 1.48 728 38,910 25.0 71.0 736 1,327 40,490 16.4 Period of record 1957-90, 1992-94 1967-86 1957-89, 1992-94 1969-90 1957-89 1957-89 1962-80 1925-94 1921, 1941-94 1957-89 1957-89 1960-94 1961-94 1957-89 1967-88 1957-89 1957-94 1929, 1938-51, 1960-94 1960-94 1957-77 1960-86 1973-94 1916-17, 1919, 1921-94 1898-1994 1968-77 1983-84 Water year 1972 1972 1982 1978 1978 1987 1987 1971 1958 1993 1965 1981 1958 1963 1973 1973 1973 1975 1981 1957 1981 1929 1973 1973 1972 1973 1974 1945 1980 1904 1973 Stage (ft) 13.06 13.10 17.15 16.22 12.07 14.88 13.38 14.29 28.22 33.75 13.10 16.56 20.71 16.10 11.02 8.74 20.12 16.15 15.95 21.48 16.70 22.75 12.95 23.89 18.83 21.49 27.42 22.05 17.30 99.20 Dis- charge (ft3/s) 1,000 5,600 4,880 1,150 1,330 3,410 5,490 3,050 16,300 6,210 27,800 14,000 5,080 5,500 17,700 2,140 4,600 5,060 7,700 3,400 570 28,000 24,700 1,800 9,000 -- 30,100 32,000 48,400 39,000 2,300 Significant floods during 1970-89 Date (month/ day/year) 7/09/72 7/10/72 4/30/78 4/30/78 7/04/87 7/04/87 7/29/71 7/25/79 4/03/73 7/11/72 9/26/73 9/26/73 9/29/73 9/26/73 10/11/73 8/29/75 6/22/81 6/22/81 9/26/73 9/28/73 10/13/73 9/26/73 9/02/72 10/12/73 4/21/74 10/31/79 10/01/73 10/31/79 10/11/85 3/10/73 Stage (ft) 13.06 13.10 16.22 12.07 14.88 13.38 14.29 22.13 10.62 18.73 15.00 11.02 8.74 20.12 19.86 16.15 15.95 16.70 20.38 12.95 11.81 23.89 18.83 27.42 - - - -- -- 99.20 Dis- charge (ft3/s) 1,000 5,600 1,150 1,330 3,410 5,490 3,050 9,780 16,500 1,700 3,110 17,700 2,140 4,600 4,000 5,060 7,700 570 24,100 24,700 18,000 1,800 9,000 30,100 26,600 29,000 39,400 48,400 32,500 2,300 Regu- lated during flood1 N N N N N N N N Y N N N Y N N N N N N Y Y N N N N N N N N N Recur- rence interval (years) 100 10-25 25-50 10-25 25-35 >100 10-25 20-25 - 10-20 5-10 >100 50 25-50 25 25-30 50-60 >100 80-100 25-50 15-25 10-25 >100 10-25 10-25 25 25-50 50-100 25-50 10 Significant Floods, 1970 Through 1989, Kansas 245 Table 17. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 07144330 07144494 07144780 07144795 07144850 07144900 07145200 07145300 07145500 07145700 07145800 07146500 07146570 07146700 07146830 07147020 07147070 07147990 07148100 07148700 07148800 07151500 07151600 Station name Dry Creek at Lincoln Street, Wichita, KS Cowskin Creek tributary at Westfield Drive, Wichita, KS North Fork Ninnescah River above Cheney Reservior, KS North Fork Ninnescah River at Cheney Dam, KS South Fork South Fork Ninnescah River near Pratt, KS South Fork Ninnescah River tributary near Pratt, KS South Fork Ninnescah River nearMurdock, KS Clear Creek near Garden Plain, KS Ninnescah River near Peck, KS Slate Creek at Wellington, KS Antelope Creek tributary near Dalton, KS Arkansas River at Arkansas City, KS Cole Creek near Degraff, KS West Branch Walnut River tributary near Degraff, KS Walnut River at U.S. Highway 54 east of El Dorado, KS Whitewater River tributary near Towanda, KS Whitewater River at Towanda, KS Cedar Creek tributary near Cambridge, KS Grouse Creek near Dexter, KS Dog Creek near Deerhead, KS Medicine Lodge River tributary near Medicine Lodge, KS Chikaskia River near Corbin, KS Rush Creek near Harper, KS Total drainage area (mi2) 2.94 3.53 787 901 21.0 1.48 650 5.03 2,129 154 0.41 43,713 30.0 11.0 350 0.17 426 2.41 170 5.31 2.04 794 12.0 Period of record 1964-77 1968-77 1966-94 1965-94 1962-80 1957-89 1951-94 1957-89 1923, 1938-94 1960-94 1957-90 1903-06, 1922-94 1962-80 1957-77 1982-94 1963-94 1962-94 1961-94 1960-89 1957-77 1957-77 1923, 1950-65, 1976-94 1957-89 Water year 1970 1977 1980 1980 1987 1974 1987 1980 1986 1923 1975 1965 1986 1923 1979 1976 1986 1965 1979 1977 1961 1976 1970 1974 1923 1977 Stage (ft) 29.51 21.87 11.65 4.80 5.51 10.05 15.82 12.84 15.28 26.40 25.82 26.44 18.40 28.43 15.40 21.63 14.52 16.32 29.73 14.42 14.70 31.19 26.76 15.84 28.00 16.82 Dis- charge (tt3/s) 1,550 900 87,000 2,070 1,990 7,050 2,310 28,700 1,600 70,000 28,500 9,000 692 103,000 22,500 5,600 9,350 510 58,400 3,000 2,670 51,000 3,600 1,600 60,000 4,500 Significant floods during 1970-89 Date (month/ day/year) 6/11/70 8/11/77 10/30/79 11/13/79 7/13/87 4/20/74 8/19/85 7/05/87 10/31/79 10/09/85 6/17/75 10/11/85 6/17/75 7/02/76 5/06/86 10/12/85 6/08/79 7/02/76 10/10/85 6/08/79 6/08/79 10/10/85 6/21/77 7/03/76 5/28/70 10/11/73 10/11/85 5/23/77 5/06/87 Stage (ft) 29.51 21.87 11.65 4.80 5.51 10.05 14.93 15.82 12.84 15.28 20.88 21.33 25.82 23.80 18.40 26.10 15.40 21.63 14.52 16.30 29.73 28.21 14.42 31.19 26.76 15.84 22.75 16.82 16.70 Dis- charge (tt3/s) 1,550 900 87,000 2,070 1,990 7,050 1,000 2,310 28,700 1,600 31,700 34,800 28,500 10,700 692 85,200 22,500 5,600 9,350 230 58,400 41,600 3,000 51,000 3,600 1,600 39,300 4,500 4,260 Regu- lated during flood1 N N N Y Y N N N N N Y Y N N N Y N N Y N N N N N N N N N N Recur- rence interval (years) 25-35 50 50-100 -- >100 10 >100 25-35 15-20 20-25 25 >100 10 >100 25-50 >100 50 5-10 50-75 25 10-25 50-100 25-50 25 20-25 25-35 25 246 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 17. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 07155590 07155900 07156000 07156010 07156100 07156220 07156700 07157100 07157400 07157900 07166000 07166200 07166500 07167500 07169200 07169500 07169700 07169800 07170060 07170500 07170600 07170700 07170800 07171700 07171800 Station name Cimarron River near Elkhart, KS North Fork Cimarron River tributary near Elkhart, KS North Fork Cimarron River tributary near Richfield, KS North Fork Cimarron River at Richfield, KS Sand Arroyo Creek near Johnson, KS Bear Creek near Johnson, KS Cimarron River tributary near Satanta, KS Crooked Creek near Copeland, KS Crooked Creek tributary at Meade, KS Cavalry Creek at Coldwater, KS Verdigris River near Coyville, KS Sandy Creek near Yates Center, KS Verdigris River near Altoona, KS Otter Creek at Climax, KS Salt Creek near Severy, KS Fall River at Fredonia, KS Snake Creek near Howard, KS Elk River at Elk Falls, KS Elk River below Elk City Lake, KS Verdigris River at Independence, KS Cherry Creek near Cherryvale, KS Big Hill Creek near Cherryvale, KS Mud Creek near Mound Valley, KS Spring Branch near Cedar Vale, KS Cedar Creek tributary near Hooser, KS Total drainage area (mi2) 2,899 75.0 103 463 619 835 2.41 44.0 6.57 39.0 747 6.80 1,138 129 7.59 827 1.84 220 634 2,892 15.0 37.0 4.22 3.10 0.56 Period of record 1972-94 1957-89 1957-77 1972-86 1972-86 1967-94 1957-94 1957-89 1957-89 1957-88 1940-94 1957-94 1939-94 1947-93 1957-77 1904, 1923, 1927-28, 1939-94 1957-77 1968-94 1966-94 1885, 1904-05, 1907-08, 1915,1918, 1922-94 1957-77 1958-94 1957-90 1957-94 1957-90 Water year 1977 1976 1976 1976 1982 1982 1962 1994 1965 1989 1981 1978 1958 1951 1972 1951 1976 1976 1945 1976 1976 1987 1945 1943 1976 1976 1976 1987 1987 Stage (ft) 9.17 17.50 21.10 17.50 9.00 15.00 14.12 16.12 17.27 14.83 16.83 8.47 10.68 41.25 19.80 31.09 31.47 22.56 36.17 19.33 34.85 33.36 47.28 47.60 26.26 23.02 20.40 17.60 16.13 Dis- charge (ft3/s) 21,500 10,000 11,000 32,000 2,300 15,000 2,040 725 5,500 758 4,400 4,620 1,700 130,000 3,000 71,000 107,000 9,200 49,000 3,090 200,000 11,900 117,000 114,000 19,000 36,000 7,500 3,650 720 Significant floods during 1970-89 Date (month/ day/year) 5/26/77 4/28/76 4/27/76 4/27/76 7/08/82 7/08/82 6/18/82 8/31/72 4/30/78 7/30/81 9/26/73 5/26/78 10/04/86 7/12/72 10/03/86 7/03/76 7/03/76 10/03/86 7/03/76 7/03/76 10/04/86 10/04/86 7/03/76 7/03/76 10/02/86 7/03/76 5/27/84 6/18/78 10/02/86 10/03/86 6/13/89 Stage (ft) 9.17 17.50 21.10 17.50 9.00 15.00 13.95 18.85 16.33 16.83 9.40 8.47 31.85 19.80 28.81 31.47 22.56 32.26 19.33 34.85 33.36 46.79 26.26 23.02 15.32 20.40 19.26 14.44 17.60 16.13 15.90 Dis- charge (ft3/s) 21,500 10,000 11,000 32,000 2,300 15,000 1,600 4,000 3,500 4,400 3,550 4,620 8,740 3,000 48,900 107,000 9,200 32,800 3,090 200,000 11,900 109,000 19,000 36,000 1,380 7,500 4,800 3,100 3,650 720 680 Regu- lated during flood1 N N N N N N N N N N N N Y N Y N N Y N N Y Y N N Y N N N N N N Recur- rence interval (years) 10-25 25-50 50 >100 25-35 25-50 25-50 20-25 10-25 10-25 25-35 50-75 <2 20-25 10-15 >100 15-25 5 >100 >100 -- 100 >100 >100 <2 >100 100 10 10-20 40-50 25-35 Significant Floods, 1970 Through 1989, Kansas 247 Table 17. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kansas Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 38) 07172000 07179500 07179730 07180300 07180400 07181500 07182250 07182600 07183000 07183100 07183200 07183500 07183800 07184000 07184600 Station name Caney River near Elgin, KS Neosho River at Council Grove, KS Neosho River near Americus, KS Spring Creek tributary near Florence, KS Cottonwood River near Florence, KS Middle Creek near Elmdale, KS Cottonwood River near Plymouth, KS North Big Creek near Burlington, KS Neosho River near lola, KS Owl Creek near Piqua, KS Neosho River near Chanute, KS Neosho River near Parsons, KS Limestone Creek near Beulah, KS Lightning Creek near McCune, KS Fly Creek near Faulkner, KS Total drainage area (mi2) 445 250 622 0.55 754 92.0 1,740 46.0 3,818 177 4,195 4,905 12.0 197 27.0 Period of record 1939-94 1932, 1938-94 1964-94 1957-90 1962-94 1917, 1938-51, 1960-62, 1965-82, 1984-90 1964-94 1957-89 1885, 1895-1904, 1918-94 1960-70 1963-74 1922-94 1957-89 1938^16, 1960-94 1957-77 Water year 1987 1951 1942 1993 1969 1975 1975 1969 1938 1986 1965 1961 1951 1970 1961 1970 1951 1985 1987 1993 1976 1964 Stage (ft) 42.35 35.50 37.13 27.84 28.30 18.36 28.03 19.92 21.00 35.45 35.70 23.81 43.00 20.97 21.78 32.09 40.20 22.15 18.48 19.79 23.52 23.65 Dis- charge (ft3/s) 104,000 121,000 65,900 17,400 10,900 710 56,000 90,000 20,000 58,200 57,500 9,200 436,000 27,700 22,000 41,600 410,000 11,000 84,000 67,500 28,000 20,000 Significant floods during 1970-89 Date (month/ day/year) 10/03/86 5/22/71 10/10/85 6/16/75 6/17/75 6/20/77 10/10/85 10/11/73 10/03/86 4/19/70 4/20/70 10/05/86 6/22/85 10/01/86 7/03/76 Stage (ft) 42.35 15.53 27.43 18.36 28.03 18.48 35.45 22.39 31.78 20.97 32.09 27.20 22.15 18.48 23.52 Dis- charge (ft3/s) 104,000 3,720 17,000 710 56,000 22,000 58,200 6,600 64,100 27,700 41,600 92,700 11,000 84,000 28,000 Regu- lated during flood1 N Y Y N Y N Y N Y N Y Y N N N Recur- rence interval (years) >100 <2 -- 30-50 25-35 10-20 -- 10-25 10 20 -- 25-35 10-25 100 25 Regulated during flood: N, no; Y, yes. 248 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Kentucky Hydroclimatology Kentucky is located in the south-central United States. This location results in the Gulf of Mexico being the primary source of moisture for the State. The Pacific Ocean can be a secondary source during the winter months. The moisture evaporated from the land surface, as well as the moisture evaporated from the lakes and reservoirs, supple- ment both the moisture from the Gulf and the Pacific. The precipitation in Kentucky varies from north to south as a result of the southern part of the State being closer to the Gulf of Mexico. Mean annual precipitation in the north is 41 in. and in the south, 52 in. (Paulson and others, 1991). Floods in Kentucky are caused either by frontal systems that occur in winter and early summer, airmass-type thunderstorms from summer to early fall, or tropical storms from the Gulf of Mexico from late summer to early fall. Floods associated with frontal systems are generally the longest lasting and the most widespread. Floods associated with summer thunderstorms are more local and can be of short duration. Rainfall asso- ciated with tropical cyclones is infrequent but can produce widespread flooding. On the basis of regionalization procedures that relate flood characteristics to water- shed and climatic characteristics, the magnitude of maximum discharges for streams in Kentucky is dependent on contributing-drainage area; main-channel slope; basin-shape index, which is the ratio of basin length squared to total drainage area; and main- channel sinuosity, which is the ratio of main-channel length to basin length (Jennings and others, 1994). Significant Floods Significant flooding occurred in December 1978 in central and north-central Ken- tucky as a result of widespread rainfall associated with a slow-moving, low-pressure system. Twenty-two percent of the streamflow-gaging stations recorded significant dis- charges. The discharge of the Kentucky River at Lock 4 at Frankfort (station 03287500, table 18) was the largest ever recorded at that station. In early May 1984, central Kentucky was affected by a series of thunderstorms pro- ducing widespread and flash flooding. Twenty-two percent of the streamflow-gaging stations in the State recorded significant discharges. Widespread flooding occurred again throughout central Kentucky in Febru- ary 1989. Flooding was particularly severe in northern areas of the Kentucky River Basin and in the Rolling Fork Basin. Some areas received more than 10 in. of rain. The location of streamflow-gaging stations in Kentucky that had significant floods for 1970-89 is shown in figure 39 by station number. The specific data for each signifi- cant flood are listed in table 18. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., andRiggs, H.C., 1994, Nationwide summary of U.S. Geo- logical Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geological Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Kentucky 249 TJo o a w (D3. O 33o' O D) a (D 3" Oc <Q3-i to 83° Ohio 03403910 Base from U.S. Geological Survey digital data, 1:2,000,000, 1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 20 40 60 MILES 20 40 60 KILOMETERS 03313000 EXPLANATION Streamflow-gaging station and number Figure 39. Location of streamflow-gaging stations with significant floods during 1970-89 for Kentucky. Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03207962 03207965 03208000 03209300 03209500 03209575 03209800 03210000 03212500 03215000 03215500 03216505 03216563 03216564 03216800 03216901 03217000 03237895 03237900 03238030 03248500 03249500 03250080 03250100 03250150 Station name Dicks Fork at Phyllis, KY Grapevine Creek near Phyllis, KY Levisa Fork below Fishtrap Dam, KY Russell Fork at Elkhorn City, KY Levisa Fork at Pikeville, KY Bill D Branch near Kite, KY Levisa Fork at Prestonsburg, KY Johns Creek near Meta, KY Levisa Fork at Paintsville, KY Big Sandy River at Louisa, KY Blaine Creek at Yatesville, KY Beckwith Branch tributary near Grayson, KY Mile Branch near Rush, KY Mile Branch at Coalton, KY Tygarts Creek at Olive Hill, KY Trough Camp Creek tributary near Olive Hill, KY Tygarts Creek near Greenup, KY Indian Run tributary near Tollesboro, KY Cabin Creek near Tollesboro, KY Lawrence Creek near Maysville, KY Licking River near Salyersville, KY Licking River at Farmers, KY Jacks Branch near Moorehead, KY North Fork Triplet! Creek near Morehead, KY Indian Creek near Owingsville, KY Total drainage area (mi2) 0.82 6.20 392 554 1,238 3.17 1,702 56.3 2,144 3,897 217 0.51 0.94 1.61 59.6 1.11 242 0.23 22.4 1.90 140 827 0.19 84.7 2.43 Period of record 1975-84 1974-82, 1989-92 1929, 1938-92 1957-92 1862, 1903, 1908-15, 1917-93 1976-86 1957, 1964-81 1938-39, 1942-93 1862, 1918, 1929-93 1939-77 1916-20, 1938-84 1977-86 1976-87 1977-86 1957-93 1976-85 1934, 1937, 1941-93 1975-86 1972-91 1975-86 1939-89, 1991-92 1938-93 1976-86 1968-87, 1989-93 1975-86 Water year 1984 1974 1981 1957 1974 1977 1957 1984 1957 1963 1984 1957 1862 1955 1958 1962 1979 1980 1980 1972 1975 1979 1979 1983 1972 1982 1939 1962 1967 1979 1989 1979 Stage (ft) 3.89 3.45 3.95 33.90 85.77 24.80 52.72 10.89 48.78 17.38 19.62 45.92 46.60 46.36 46.37 29.64 14.44 7.11 15.43 17.06 19.04 8.50 22.75 87.98 14.42 94.93 25.40 26.70 31.13 15.42 20.62 73.57 Dis- charge (ft3/s) 178 1,650 1,220 33,000 8,540 54,200 85,500 900 69,700 7,380 5,950 69,700 89,400 77,900 21,000 80 378 450 9,470 7,900 445 30,300 170 8,370 790 14,300 24,000 16,900 85 10,600 1,610 Significant floods during 1970-89 Date (month/ day/year) 5/07/84 6/01/74 1/17/74 4/04/77 4/05/77 5/07/84 4/05/77 6/07/81 5/07/84 4/06/77 5/09/84 4/07/77 12/09/78 5/01/83 7/03/80 7/03/80 4/22/72 9/21/79 4/22/72 12/09/78 5/02/83 4/22/72 1/22/82 12/09/78 1/15/74 12/08/78 2/15/89 7/27/79 Stage (ft) 3.89 3.45 85.77 24.80 51.46 10.89 45.71 19.30 19.62 42.19 40.45 45.00 27.50 14.43 7.11 15.43 17.06 8.50 21.25 22.75 87.98 14.42 94.93 24.91 23.62 15.42 20.62 73.57 Dis- charge (ft3/s) 178 1,650 8,540 54,200 81,700 900 45,500 6,010 5,950 43,700 43,400 84,200 17,000 80 378 450 9,470 445 18,200 30,300 170 8,370 790 11,700 8,100 85 10,600 1,610 Regu- lated during flood1 N N Y Y Y N Y N N Y Y Y N N N N N N N N N N N N Y N N N Recur- rence interval (years) 5-10 25-50 <2 25 40 25-50 -- 15-20 15-20 <5 <5 10 50 5 10-25 5 15-20 25-50 25 >100 10-25 15-25 10-25 25 <2 10-25 50 >100 Significant Floods, 1970 Through 1989, Kentucky 251 Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03250243 03250620 03251008 03251015 03251500 03252000 03253500 03254400 03260010 03260012 03277070 03277185 03277450 03277500 03277630 03278000 03278500 03280000 03280700 03280728 03280935 03281000 03281090 03281500 Station name Rose Run tributary near Olympia, KY Johnson Creek tributary near Fairview, KY Wells Creek tributary near Washington, KY Lee Creek tributary at Mays Lick, KY Licking River at McKinneysburg, KY Stoner Creek at Paris, KY Licking River at Catawba, KY North Fork Grassy Creek near Finer, KY Pleasant Run Creek at Crescent Springs, KY Pleasant Run Creek tributary at Fort Mitchell, KY Fowlers Fork at Union, KY Craigs Creek tributary near Warsaw, KY Carr Fork near Sassafras, KY North Fork Kentucky River at Hazard, KY Brier Fork near Hazard, KY Bear Branch near Noble, KY Troublesome Creek at Noble, KY North Fork Kentucky River at Jackson, KY Cutshin Creek at Wooton, KY Bull Creek near Hyden, KY Stamper Fork at Canoe, KY Middle Fork Kentucky River at Tallega, KY Paces Creek near Garrard, KY South Fork Kentucky River at Booneville, KY Total drainage area (mi2) 0.70 0.33 0.14 0.45 2,326 239 3,300 13.6 0.68 1.62 1.54 0.68 60.6 466 1.32 2.21 111 1,101 61.3 1.84 1.57 537 0.47 722 Period of record 1975-86 1976-86 1977-86 1975-85 1922, 1925-26, 1937, 1939-93 1954-80, 1982-91 1854, 1888-1993 1968-80, 1982-83 1973-83, 1985-86 1973-87 1976-86 1976-86 1963-93 1900, 1940-92 1976-85 1955-82 1939, 1950-81 1905-07, 1917-21, 1927-31, 1935-93 1958-93 1976-86 1975-86 1929, 1931-32, 1935, 1937, 1939-93 1976-85 1926-31, 1937, 1939-93 Water year 1980 1979 1982 1976 1964 1979 1964 1970 1979 1973 1977 1986 1972 1967 1957 1984 1972 1963 1957 1939 1963 1976 1981 1957 1976 1957 Stage (ft) 89.91 6.97 17.71 97.44 50.26 20.55 52.60 19.92 10.87 10.60 11.44 8.26 1789 19.24 37.54 90.94 3.97 29.75 40.41 43.10 16.23 12.55 94.42 43.33 20.16 43.40 Dis- charge (ft3/s) 470 154 398 285 59,100 19,400 95,000 20,200 640 1,900 1,250 770 5,420 5,220 47,800 563 568 22,800 53,500 46,800 14,200 890 1,060 52,700 76 66,100 Significant floods during 1970-89 Date (month/ day/year) --A-/80 9/14/79 1/22/82 10/17/75 2/16/89 12/09/78 2/16/89 4/30/70 6/08/79 7/24/73 4/02/77 7/12/86 4/12/72 1/24/79 4/05/77 1 1/19/84 4/12/72 6/22/74 5/08/84 6/15/89 3/30/76 6/06/81 6/07/81 8/15/76 5/08/84 Stage (ft) 89.91 6.97 17.71 97.44 43.75 20.55 43.98 19.92 10.87 10.60 11.44 8.26 17.89 11.82 32.06 90.94 3.97 28.87 41.97 16.10 12.55 94.42 24.90 20.16 41.12 Regu- Dis- lated charge during (ft^s) flood1 470 N 154 N 398 N 285 N 44,300 Y 19,400 N 76,800 Y 20,200 N 640 N 1,900 N 1,250 N 770 N 5,420 N 1,840 Y 39,000 Y 563 N 568 N 21,400 N 53,500 Y 14,000 N 890 N 1,060 N 8,620 Y 76 N 51,600 N Recur- rence interval (years) 100 10-25 10-25 100 5-10 100 15 >100 10-25 >50 100 25-50 10-25 <2 25 10-25 15-20 15-20 20 25-50 10-25 25-50 <2 -- 10-20 252 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03282000 03282198 03282500 03283305 03283500 03283610 03284000 03284340 03285000 03285100 03287000 03287128 03287500 03287534 03288000 03288500 03289000 03289190 03289300 03289500 03290000 03290580 03291050 Station name Kentucky River at Lock 14 at Heidelberg, KY Clear Creek tributary near West Irvine, KY Red River near Hazel Green, KY Middle Fork Red River at Zachariah, KY Red River at Clay City, KY Lulbegrud Creek tributary at West Bend, KY Kentucky River at Lock 10 near Winchester, KY Old Town Branch tributary near Richmond, KY Dix River near Danville, KY Balls Branch tributary near Danville, KY Kentucky River at Lock 6 near Salvisa, KY Tanners Creek at Mortonsville, KY Kentucky River at Lock 4 at Frankfort, KY South Benson Creek near Frankfort, KY North Elkhorn Creek near Georgetown, KY Cave Creek near Fort Spring, KY South Elkhorn Creek at Fort Spring, KY Wolf Run at Cambridge Drive at Lexington, KY South Elkhorn Creek near Midway, KY Elkhorn Creek near Frankfort, KY Flat Creek near Frankfort, KY Town Creek at New Castle, KY South Rays Fork near Corinth, KY Total drainage area (mi2) 2,657 0.59 65.8 0.58 362 0.33 3,955 1.83 318 0.13 5,102 1.49 5,412 4.47 119 2.53 24.0 5.30 105 473 5.63 5.62 0.58 Period of record 1921-79, 1981-93 1975-85 1955-93 1975-85 1931-32, 1937-93 1975-76, 1978-86 1908-93 1976-85 1943-93 1976, 1978-86 1895-1986, 1988-93 1976-87 1895-1931, 1933-56, 1958-93 1976-86 1948, 1951-83, 1989-93 1953-79 1951-92 1976-87 1983-86, 1988-93 1916-20, 1932, 1937, 1940-83, 1989-93 1952-87 1976-86 1976-86 Water year 1939 1975 1962 1976 1979 1985 1979 1979 1979 1978 1979 1976 1979 1978 1976 1979 1948 1979 1989 1978 1989 1932 1979 1979 1979 Stage (ft) 35.60 101.18 22.12 102.94 26.75 88.55 40.15 10.22 21.81 6.02 49.04 7.18 48.47 9.71 10.08 15.60 22.00 3.49 9.50 9.15 21.28 17.50 11.80 15.04 15.30 Dis- charge (ft3/s) 120,000 348 9,080 250 28,800 105 101,000 860 44,400 68 144,000 680 118,000 760 590 8,730- 405 2,280 1,620 7,270 31,000 8,500 1,300 525 Significant floods during 1970-89 Date (month/ day/year) 5/08/84 4/25/75 12/09/78 10/17/75 12/09/78 8/26/85 12/10/78 12/08/78 4/28/70 12/09/78 5/07/84 10/01/77 4/16/72 12/10/78 2/17/76 12/09/78 2/16/89 12/05/77 12/09/78 9/21/79 2/15/89 8/25/78 2/15/89 2/16/89 9/14/79 9/13/79 9/22/79 Stage (ft) 30.90 101.18 20.50 102.94 26.75 88.55 40.15 10.22 17.16 21.81 15.77 6.02 41.30 49.04 7.18 48.47 44.17 9.71 15.60 3.49 9.50 9.15 21.28 15.26 11.80 15.04 15.30 Dis- charge (ft3/s) 94,600 348 7,930 250 28,800 105 101,000 860 33,400 44,400 29,500 68 107,000 144,000 680 118,000 106,000 760 8,730 405 2,280 1,620 7,270 28,700 8,500 1,300 525 Regu- lated during flood1 Y N N N N N Y N N N N N Y Y N Y Y N N N N N N N N N N Recur- rence interval (years) 5-10 10-25 50 25 100 10 35 10-25 40 >100 25 5 15-20 >100 >50 70 25 10 25-50 10-25 25 10-25 - 100 >100 10-25 25-50 Significant Floods, 1970 Through 1989, Kentucky 253 Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03291500 03292200 03292460 03292472 03292500 03292785 03293000 03295000 03295845 03296500 03297000 03297845 03298000 03298535 03299000 03300000 03300065 03300400 03300990 03301000 03301500 03302000 03302085 Station name Eagle Creek at Glencoe, KY Jeff Branch near Sligo, KY Harrods Creek near La Grange, KY South Fork Harrods Creek near Crestwood, KY South Fork Beargrass Creek at Louisville, KY Middle Fork Beargrass Creek at St. Matthews, KY Middle Fork Beargrass Creek at Louisville, KY Salt River near Harrodsburg, KY Bradshaw Creek near Shelbyville, KY Plum Creek near Wilsonville, KY Little Plum Creek near Waterford, KY Floyds Fork near Crestwood, KY Floyds Fork at Fisherville, KY Elm Lick near Clermont, KY Rolling Fork near Lebanon, KY Beech Fork near Springfield, KY North Prong near Willisburg, KY Beech Fork at Maud, KY Town Creek tributary at Bardstown, KY Beech Fork at Bardstown, KY Rolling Fork near Boston, KY Pond Creek near Louisville, KY Otter Creek tributary near Vine Grove, KY Total drainage area (mi2) 437 0.87 24.1 0.97 17.2 6.59 18.9 41.4 1.36 19.1 5.15 46.7 138 0.68 239 85.9 1.71 436 0.32 669 1,299 64.0 0.90 Period of record 1913, 1915-20, 1928-31, 1937, 1939-87, 1989-93 1976-83, 1985-86 1968-93 1975-87 1940-83, 1988-93 1954, 1958-64, 1967, 1970-83 1943, 1945-83, 1985-93 1953-83 1976-86 1954-80 1954-78, 1980-83 1980-91 1937, 1943, 1945-93 1976-85 1913, 1939-92 1953-83 1975-78, 1980-87 1964, 1973-93 1975-86 1940-85 1937, 1939-93 1937, 1945-93 1975-78, 1980-86 Water year 1964 1978 1989 1979 1978 1964 1970 1970 1979 1984 1980 1980 1989 1970 1937 1979 1970 1913 1970 1984 1979 1979 1979 1989 1937 1964 1975 Stage (ft) 26.05 17.23 9.80 9.93 14.50 17.17 563.02 9.60 17.02 17.50 10.82 6.30 21.52 16.15 16.80 13.55 24.51 24.70 30.34 19.04 26.16 16.52 46.00 52.62 55.20 22.69 7.33 Dis- charge (ft3/s) 58,200 960 6,100 5,310 640 4,940 2,200 5,200 12,000 1,600 7,950 4,420 5,370 28,500 880 54,800 10,600 960 33,300 120 39,900 66,500 8,020 250 Significant floods during 1970-89 Date (month/ day/year) 9/14/79 10/01/77 4/04/89 10/01/77 4/02/70 7/22/73 4/02/70 4/02/70 4/28/70 12/08/78 6/1 1/84 7/02/80 7/02/80 4/04/89 4/02/70 9/14/79 9/19/79 4/28/70 12/08/78 4/28/70 5/07/84 12/09/78 9/22/79 12/09/78 5/08/84 12/10/78 5/09/84 2/17/89 4/02/70 4/30/83 3/29/75 Stage (ft) 24.19 17.23 9.80 14.50 16.89 16.52 563.02 9.60 15.65 17.02 17.50 10.82 6.30 21.52 16.15 15.26 13.55 24.51 23.17 30.34 19.04 26.16 16.52 46.00 45.50 51.73 48.49 52.62 22.52 20.90 7.33 Dis- charge (tf/s) 46,500 960 6,100 640 4,610 3,790 2,200 5,200 7,620 12,000 1,600 7,950 4,420 5,370 28,500 24,900 880 54,800 37,600 10,600 960 33,300 120 39,900 38,000 65,000 60,500 66,500 5,970 5,180 250 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 50 25-50 50 10-25 50 25 25 100 25 >100 25-50 >100 25-50 -- 100 50 25-50 >100 30-40 25-50 10 10-15 10-15 50 25-35 100 90 100 15-25 10 <5 254 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03304500 03305000 03305500 03305559 03305725 03305835 03306000 03306640 03307000 03307100 03307500 03307670 03308500 03310000 03310300 03310385 03310400 03310880 03311500 03311600 03312000 03312795 03313000 03313020 03313500 Station name McGills Creek near McKinney, KY Green River near McKinney, KY Green River near Mount Salem, KY Carpenter Creek tributary near Houstonville, KY Irvin Branch near Salem, KY Gum Lick Creek tributary near Clementsville, KY Green River near Campbellsville, KY White Oak Creek tributary near Montpelier, KY Russell Creek near Columbia, KY Russell Creek near Gresham, KY South Fork Little Barren River at Edmonton, KY Prices Creek near Gradyville, KY Green River at Munfordville, KY North Fork Nolin River at Hodgenville, KY Nolin River at White Mills, KY Bacon Creek tributary near Upton, KY Bacon Creek near Priceville, KY Brier Creek tributary near Ollie, KY Green River at Lock 6 at Brownsville, KY Beaverdam Creek at Rhoda, KY Bear Branch near Leitchfield, KY Little Beaver Creek near Glasgow, KY Barren River near Finney, KY Solomon Creek tributary near Scottsville, KY West Bays Fork at Total drainage area (mi2) 2.14 22.4 36.3 0.88 1.37 0.71 682 0.50 188 265 18.3 2.53 1,673 36.4 357 0.56 85.4 0.31 2,762 10.9 30.8 0.89 942 0.24 7.47 Period of record 1952-79 1952-83 1954-83 1976-85 1976-86 1976-86 1931-32, 1962, 1964-93 1976-85 1937, 1940-93 1965-83 1942-83 1976-86 1913, 1916-22, 1925-79, 1981-93 1942-78, 1980-82 1960-93 1975-85 1958, 1960-93 1976-85 1907-50, 1952-91 1973-93 1937, 1950-83 1976-79, 1981-86 1942-50, 1961-93 1976-84, 1986 1951-83 Water year 1972 1974 1979 1980 1984 1976 1962 1989 1982 1982 1979 1975 1984 1962 1970 1964 1970 1984 1984 1958 1984 1937 1984 1973 1979 1985 1986 1962 1943 1980 1969 Stage (ft) 6.57 10.75 12.39 13.52 26.20 8.56 72.60 113.68 16.45 26.12 33.41 14.82 14.60 57.72 15.75 15.80 34.86 18.64 20.11 21.80 8.20 44.94 11.38 61.50 21.68 7.50 7.79 99.50 9.59 8.34 Dis- charge (ft3/s) 1,480 20,000 16,400 730 2,650 515 60,700 6,730 790 40,600 68,000 10,600 2,350 76,800 9,380 8,860 19,400 440 6,800 280 120,000 4,850 965 8,380 345 285 78,000 23,500 175 7,050 Significant floods during 1970-89 Date (month/ day/year) 4/12/72 4/12/72 1/10/74 9/21/79 1 1/24/79 5/07/84 6/03/76 1/08/70 9/01/82 9/01/82 5/07/84 12/09/78 3/12/75 3/21/76 5/07/84 5/08/84 4/28/70 4/29/70 2/14/89 5/07/84 12/08/78 5/07/84 5/07/84 5/09/84 5/07/84 9/14/79 8/01/85 3/02/77 12/13/79 12/09/78 Stage (ft) 6.57 9.26 10.75 12.39 13.52 26.20 8.56 56.97 16.45 26.12 24.41 33.41 14.82 9.96 14.60 53.78 15.75 34.86 34.65 18.64 19.88 20.11 8.20 - 11.38 21.68 7.50 88.20 9.59 6.73 Regu- Dis- lated charge during (fAs) flood1 1,480 13,700 20,000 16,400 730 2,650 515 10,100 790 40,600 29,600 68,000 10,600 3,570 2,350 65,300 9,380 19,400 19,200 440 6,600 6,800 280 73,000 4,850 8,380 345 5,160 175 2,660 N N N N N N N Y N N N N N N N Y N N N N N N N Y N N N Y N N Recur- rence interval (years) 25 15-25 50 25 10-25 >50 10-25 <2 -- 75 25 50-100 >100 10 25-50 50 15-25 15-25 15-25 10 35-45 35-45 10-25 20 25-50 30-^0 5-10 <2 5-10 10-20 Scottsville, KY Significant Floods, 1970 Through 1989, Kentucky 255 Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03313700 03313800 03314000 03314750 03315500 03317500 03317965 03318505 03318800 03319000 03319520 03320500 03321350 03321465 03382975 03383000 03383605 03400500 03400700 03400800 03400990 03401000 03402000 Station name West Fork Drakes Creek near Franklin, KY Lick Creek near Franklin, KY Drakes Creek near Alvaton, KY Barren River tributary near Bowling Green, KY Green River at Lock 4 at Woodbury, KY North Fork Rough River near Westview, KY Long Lick Creek tributary near Axtel, KY Pleasant Run tributary near Falls of Rough, KY Caney Creek near Horse Branch, KY Rough River near Dundee, KY West Fork Adams Fork tributary near Fordsville, KY Pond River near Apex, KY South Fork Panther Creek near Whitesville, KY Rhodes Creek tributary near Owensboro, KY Ward Creek at Lewiston, KY Tradewater River at Olney, KY West Fork Donaldson Creek near Fredonia, KY Poor Fork at Cumberland, KY Clover Fork at Evarts, KY Martins Fork near Smith, KY Clover Fork at Harlan, KY Cumberland River near Harlan, KY Yellow Creek near Middlesboro, KY Total drainage area (mi2) 110 21.6 478 0.50 5,404 42.0 0.38 0.22 124 757 0.26 194 58.2 0.29 0.91 255 2.52 82.3- 82.4 55.8 222 374 60.6 Period of record 1969-90, 1992-93 1959-83 1937, 1940-82 1976-84, 1986 1913, 1937-92 1955-64, 1966-76, 1978-80, 1982-83 1975-79, 1982-86 1975-81, 1983-85, 1987 1957-92 1937, 1940-92 1976-86 1937, 1941-93 1969-83 1975-79, 1982-86 1975-79, 1981-86 1937, 1941-83, 1986-93 1975-80, 1982-86 1927, 1940-92 1960-78, 1981-86 1968-93 1978-87, 1989-92 1918, 1929, 1940-88, 1990-93 1929, 1939, 1941-64, 1966-70, 1972-93 Water year 1975 1975 1969 1982 1937 1983 1984 1976 1984 1958 1979 1937 1983 1984 1979 1970 1979 1985 1937 1984 1975 1957 1977 1977 1977 1984 1977 1977 Stage (ft) 23.20 9.97 40.43 12.81 43.10 20.62 24.70 19.37 13.96 14.43 29.05 31.80 7.95 22.83 17.88 18.18 8.67 21.57 19.27 21.30 21.33 11.50 15.88 14.87 24.24 20.09 30.26 23.35 Dis- charge (ft3/s) 27,300 11,400 96,400 700 205,000 4,150 570 250 13,600 10,000 22,200 175 35,700 3,860 2,490 295 1,120 17,000 2,000 1,860 11,800 10,700 18,100 9,000 21,700 64,500 11,700 Significant floods during 1970-89 Date (month/ day/year) 3/12/75 3/12/75 3/12/75 8/30/82 12/11/78 5/02/83 4/29/84 2/17/76 4/29/83 5/07/84 9/22/79 5/07/84 5/02/83 12/09/78 5/07/84 2/15/89 12/04/78 12/04/78 5/22/85 2/16/89 4/29/84 4/04/77 4/04/77 3/17/73 5/07/84 12/31/69 4/05/77 12/30/69 11/28/73 4/04/77 Stage (ft) 23.20 9.97 35.93 12.81 34.07 20.62 24.70 19.37 13.19 13.96 29.05 29.75 7.95 21.34 22.83 22.60 17.88 8.67 21.57 18.85 21.30 15.88 14.87 13.88 20.09 24.90 30.26 20.99 20.24 23.35 Regu- Dis- lated charge during (frVs) flood1 27,300 11,400 63,700 700 102,000 4,150 570 250 11,300 13,600 22,200 19,800 175 22,800 35,700 24,000 3,860 295 1,120 14,600 2,000 10,700 18,100 6,040 21,700 43,200 64,500 9,980 9,980 11,700 N N N N Y N N N N N Y Y N N N N N N N N N N N Y Y N N N N N Recur- rence interval (years) 100 >100 50 >100 5-10 25-50 25-50 5-10 25 50-100 25 15 5-10 25 >100 40 10 >50 10-25 75 10-25 50 25-50 <5 .. 25 100 50 50 75-100 256 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03402020 03403000 03403500 03403910 03404000 03404500 03404820 03404867 03404900 03405854 03406000 03406500 03407100 03407200 03407300 03407500 03410500 03412500 03413200 03413202 03413425 03414000 03414102 03435140 03437490 Station name Shillalah Creek near Page, KY Cumberland River near Pineville, KY Cumberland River at Barbourville, KY Clear Fork at Saxton, KY Cumberland River at Williamsburg, KY Cumberland River at Cumberland Falls, KY Laurel River at municipal dam near Corbin, KY Gozey Hollow near Corbin, KY Lynn Camp Creek at Corbin, KY Big Hurricane Branch at Conway, KY Wood Creek near London, KY Rockcastle River at Billows, KY Cane Branch near Parkers Lake, KY West Fork Cane Branch near Parkers Lake, KY Helton Branch at Greenwood, KY Buck Creek near Shopville, KY South Fork Cumberland River near Stearns, KY Pitman Creek at Somerset, KY Beaver Creek near Monticello, KY Elk Spring Creek near Spann, KY Williams Creek tributary near Cartwright, KY Cumberland River near Rowena, KY Bear Creek near Burksville, KY Whippoorwill Creek near Claymour, KY South Fork Little River Total drainage area (mi2) 2.96 809 960 331 1,607 1,977 140 0.31 53.8 1.91 3.89 604 0.67 0.26 0.85 165 954 31.3 43.4 0.57 0.76 5,790 3.52 20.8 2.62 Period of record 1976-86 1929, 1939-75, 1977, 1979-91 1923-31, 1946, 1949-93 1969-90 1929, 1946, 1951-93 1916-31, 1933-93 1974-92 1976-85 1957-93 1976-85 1954-86 1913, 1937-93 1957-86 1957-86 1956-86 1953-91 1929, 1943-91, 1993 1954-83 1969-83, 1991-93 1976-86 1976-86 1826, 1940-77, 1979-92 1976-86 1973-91 1977-86 Water year 1977 1977 1977 1977 1957 1977 1918 1984 1984 1984 1957 1984 1984 1979 1981 1957 1957 1981 1962 1973 1929 1962 1979 1984 1979 1946 1826 1977 1975 1984 Stage (ft) 59.40 54.86 45.91 41.51 33.78 35.03 14.72 27.46 7.90 22.50 12.69 7.17 47.17 2.39 2.43 2.20 1.70 23.21 45.31 52.90 9.95 8.37 10.36 8.62 64.82 69.50 12.39 17.75 20.72 Dis- charge (tt3/s) 856 80,500 56,100 22,800 49,700 46,600 59,600 58,600 18,300 54 9,000 1,360 694 50,100 411 198 129 195 19,900 93,200- 3,460 9,240 609 235 162,000 1,750 8,380 600 Significant floods during 1970-89 Date (month/ day/year) 4/04/77 12/31/69 4/05/77 1/01/70 11/29/73 4/06/77 4/05/77 4/07/77 5/07/84 5/07/84 5/07/84 5/07/84 5/07/84 4/28/70 5/07/84 12/09/78 8/09/70 6/06/81 12/09/78 6/06/81 12/08/78 5/28/73 3/13/75 12/09/78 12/09/78 5/07/84 12/09/78 3/29/75 7/01/77 3/12/75 5/07/84 Stage (ft) 59.40 49.77 54.86 42.30 42.65 45.91 41.51 35.03 14.72 27.46 7.90 13.49 12.69 6.32 7.17 47.17 2.00 2.39 1.99 1.70 21.94 45.31 44.15 9.80 8.37 10.36 8.62 29.55 12.39 17.75 20.72 Dis- charge (frVs) 856 56,200 80,500 48,800 49,500 56,100 22,800 46,600 58,600 18,300 54 6,190 1,360 524 694 50,100 236 411 103 195 18,100 93,200 88,900 3,420 9,240 609 235 42,600 1,750 8,380 600 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N Y N N N Recur- rence interval (years) 10-25 10-25 100 10-25 10-25 25 10 40 30 25-50 5 10-25 10-25 5-10 10-25 40 10 75 25 15-20 15-20 75 50 15 10-25 10-25 5 <2 10-25 15-35 15-35 tributary near Hopinsville, KY Significant Floods, 1970 Through 1989, Kentucky 257 Table 18. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Kentucky Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 39) 03438000 03438070 03438120 03438220 03610470 03610500 03610503 03610545 03610820 03611260 07022500 07023040 07023500 07023935 Total drainage area Station name (mi2) Little River near Cadiz, 244 KY Muddy Fork Little River 30.5 near Cerulean, KY North Fork Dryden Creek tributary near Confederate, KY Cumberland River near 17,598 Grand Rivers, KY York Creek near Benton, 0.96 KY Clarks River near Benton, 227 KY Chestnut Creek near 0.82 Benton, KY West Fork Clarks River 68.7 near Brewers, KY Clarks River tributary near 0.13 Reidland, KY Massac Creek near 14.6 Paducah, KY Perry Creek near 1.72 Mayfield, KY Lick Creek tributary near 0.53 Kirbyton, KY Obion Creek at 36.8 Pryorsburg, KY South Fork Bayou de 0.23 Chein at Water Valley, KY Period of record 1940-93 1969-83 1975-85 1900, 1965-93 1975-82, 1984-87 1939-83 1975-79, 1981-86 1969-83, 1989-93 1975-79, 1981, 1983-86 1972-93 1952-65, 1968-87 1975-85, 1987 1949, 1952-83 1975-87 Water year 1984 1970 1975 1975 1979 1985 1958 1985 1975 1975 1985 1983 1980 1979 1975 Dis- Stage charge (ft) (ft3/s) 22.45 20,200 19.87 7,320 6.77 51 209,000 41.14 146,000 20.60 820 17.10 36,000 17.91 1,350 17.61 9,370 11.97 290 15.86 5,990 12.02 2,760 18.20 438 14.05 6,320 19.69 215 Significant floods during 1970-89 Date (month/ day/year) 3/12/75 12/08/78 5/07/84 8/10/70 3/29/75 3/16/75 9/05/85 3/13/75 9/05/85 3/12/75 7/04/75 9/05/85 6/03/83 6/29/80 3/12/75 12/03/78 3/29/75 Stage (ft) 22.28 22.33 22.45 19.87 6.77 - 20.60 16.73 17.91 17.61 11.97 15.86 12.02 18.20 13.79 14.05 19.69 Regu- Dis- lated charge during (ftVs) flood1 19,400 19,600 20,200 7,320 51 209,000 820 33,400 1,350 9,370 290 5,990 2,760 438 6,030 6,320 215 N N N N N Y N N N N N N N N N N N Recur- rence interval (years) 50 50 50 10-25 - - 10-25 50 25-50 5- 10 25-50 25-50 >100 25-50 10-20 15-25 10 1 Regulated during flood: N, no; Y, yes. 258 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Louisiana Significant Floods Hydroclimatology Louisiana is located in the south-central part of the United States and is bordered on the south by the Gulf of Mexico. More than one-half of Louisiana can be considered a flood plain, as much of the State is in the Mississippi River Delta. Louisiana is located along the southernmost part of the Mississippi River Basin, which has the largest drainage of any basin in North America. The major source of moisture is the Gulf of Mexico. Rainfall occurs from summer airmass thun- derstorms, tropical storms and hurricanes in the late summer and fall, and from frontal systems in the win- ter and spring. Pacific moisture can reach Louisiana as well and is a prevalent effector of climate during the winter and spring. Precipitation at locations in Louisi- ana is dependent on the distance to the Gulf of Mex- ico. The delta area in southeastern Louisiana receives an average of about 64 in. of precipitation annually. Mean annual precipitation decreases to the west and north, with the northwest corner of the State receiving an average of 48 in. (Paulson and others, 1991). Large-scale flooding in Louisiana most commonly is caused by frontal systems, particularly in the north- ern part of the State. Flooding along the Mississippi and Red Rivers can become severe as these rivers are quite large. Flooding from tropical cyclones and hurri- canes usually is caused by the storm surge and can result in loss of lives and can be most destructive to property. Flash flooding usually is the result of convec- tive thunderstorms. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in the Mississippi River alluvial plain is a function of drainage area, channel slope, and channel length. For the rest of Louisiana, drainage area of the basin, mean annual precipitation, and channel slope are the most important factors (Jennings and others, 1994). The most significant flood during 1970-89 occurred from April 6 through 9, 1983. Twenty-three percent of the streamflow-gaging stations in Louisiana recorded significant discharges. The flood was a result of a frontal system that brought warm, moist air inland from the Gulf of Mexico and produced intense thun- derstorms of long duration. The flood affected south- eastern Louisiana the most. Maximum discharges were recorded at 27 gaging stations. Some stations recorded maximum discharges that exceeded the 50-year recurrence interval. A large flood came down the Mississippi River from the upstream parts of the basin in May 1973. Flood-control structures, including the old river struc- ture upstream from Baton Rouge, were damaged by excessive flow and scour. The flood on the Mississippi River in 1973 was considered a 50-year flood. The location of streamflow-gaging stations in Louisiana that had significant floods for 1970-89 is shown in figure 40 by station number. The specific data for each significant flood are listed in table 19. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Flood, 1970 Through 1989, Louisiana 259 Wi D> O w 3 3;o' D> o 3J o" O t» Q. 3 0 «r U a (0 o (Q 07344450 EXPLANATION 07111000 s Streamflow-gaging station and number 0 20 40 60 MILES i___ i ___^______i fv 0 20 40 60 KILOMETERS Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' GULF OF MEXICO Figure 40. Location of streamflow-gaging stations with significant floods during 1970-89 for Louisiana. Inset A 90°50' 30°40' - 30°25' - Base from U.S. Geological Survey digital data, 1:100,000,1994 Universal Transverse Mercator projection Zone 15 Converted to Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 6 MILES 6 KILOMETERS EXPLANATION 07379085 KI Streamflow-gaging station and number Figure 40. Location of streamflow-gaging stations with significant floods during 1970-89 for Louisiana Continued. Significant Floods, 1970 Through 1989, Louisiana 261 Table 19. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Louisiana [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1993 Station number (fig. 40) 02489500 02489990 02490105 02490113 02491200 02491350 02491500 02491700 02492000 02492600 07344450 07344467 07346950 07348700 07349500 07349660 07349794 07349795 07349860 07350020 07350990 07351300 07351500 Station name Pearl River near Bogalusa, LA Bogue Lusa Creek tributary near Franklinton, LA Bogue Lusa Creek at State Highway 439 at Bogalusa, LA Bogue Lusa Creek at Louisiana Highway 21 at Bogalusa, LA Silver Creek near Clifton, LA Hays Creek near Franklinton, LA Bogue Chitto at Franklinton, LA Lawrence Creek near Franklinton, LA Bogue Chitto near Bush, LA Pearl River at Pearl River, LA Paw Paw Bayou near Greenwood, LA Logan Bayou near Shreveport, LA Kelly Bayou near Ida, LA Byu Dorcheat near Springhill, LA Bodcau Bayou near Sarepta, LA Bayou Bodcau (reservior outlet) near Shreveport, LA Collinsburg Creek near Plain Dealing, LA Cypress Bayou above Benton, LA Red Chute Bayou at Sligo, LA Loggy Bayou near East Point, LA Boggy Bayou at Woolworth Road near Keithville, LA Brush Bayou near Shreveport, LA Cypress Bayou near Keithville, LA Total drainage area (mi2) 6,573 0.41 72.7 75.9 50.1 42.2 990 44.2 1,213 8,494 80.5 2.60 73.0 605 546 683 7.39 88.9 980 2,648 41.3 27.1 66.0 Period of record 1938-93 1966-76 1964-85 1961, 1969-82 1966-83 1966-86 1900, 1922-93 1964-83 1938-93 1874, 1900-93 1956-86 1968-79, 1981 1969-83 1958-93 1905, 1930, 1939-91, 1993 1930, 1950-78 1967-81 1975-86 1960-93 1948-52, 1959-64, 1984-85 1963-83 1960-93 1939-93 Water year 1979 1973 1983 1977 1961 1983 1983 1983 1900 1983 1983 1980 1983 1986 1974 1979 1974 1958 1958 1930 1975 1930 1974 1975 1991 1963 1984 1964 1979 1974 1955 Stage (ft) 23.23 10.15 13.80 79.10 81.40 12.03 17.06 24.69 29.60 15.32 21.22 19.75 21.05 15.97 8.56 10.03 44.70 22.79 25.14 27.00 165.32 170.80 13.92 11.99 38.26 148.00 24.98 32.53 43.59 165.53 13.62 Dis- charge (ft3/s) 129,000 400 9,350 7,250 12,200 10,600 125,000 15,800 131,700 173,800 230,000 19,100 1,230 4,160 36,400 18,600 2,880 1,320 3,970 6,800 11,300 9,940 13,600 23,700 Significant floods during 1970-89 Date (month/ day/year) 4/24/79 3/31/80 4/08/83 4/24/73 4/07/83 4/22/77 4/07/83 4/07/83 3/30/80 4/07/83 4/07/83 3/31/80 4/08/83 4/02/80 4/09/83 6/27/86 12/03/73 4/22/74 6/10/74 12/29/88 2/14/75 3/15/76 12/03/74 2/03/75 7/02/89 3/06/84 5/04/79 12/03/73 3/05/84 Stage (ft) 23.23 22.42 22.78 10.15 13.80 79.10 12.03 17.06 20.55 24.69 15.32 17.31 21.22 19.75 21.05 15.97 8.56 44.70 20.81 23.52 165.32 162.85 13.92 11.99 36.46 24.98 43.59 165.53 11.92 Dis- charge (ft3/s) 129,000 107,000 114,000 400 9,350 7,250 12,200 10,600 56,700 125,000 15,800 57,400 131,700 173,800 230,000 19,100 1,230 4,160 30,500 13,200 2,880 1,680 1,320 3,970 4,480 11,300 9,940 13,600 15,100 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) >100 >100 >100" 25 10 25 25 10-15 >100 25 15 >100 >100 >100 >100 -- 50-100 25-50 20-25 -- 10-25 -- -- 25-50 25-50 20 262 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 19. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Louisiana Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 40) 07351600 07351670 07351725 07351750 07351980 07352000 07352265 07352295 07352400 07352800 07353520 07353780 07353990 07354100 07354420 07355456 07355618 07364108 07364200 07364500 07364507 07364700 07364740 07366000 07366200 Station name Bayou Pierre near Grand Bayou, LA Rambin Bayou near Frierson, LA Buffalo Bayou tributary near Mansfield, LA Bayou Pierre near Lake End, LA Saline Bayou near Bienville, LA Saline Bayou near Lucky, LA Leatherman Creek tributary at Athens, LA Black Lake Creek at Gibsland, LA Kepler Creek at Sparta, LA Grand Bayou near Coushatta, LA Nantachie Lake near Aloha, LA Sibley Lake tributary near Natchitoches, LA Kisatchie Bayou at Kisatchie, LA Kisatchie Bayou at Lotus, LA Bayou Provencal tributary near Provencal, LA Williamson Branch at Gardner, LA Slash Bayou tributary at Holloway, LA Cook Creek tributary at Spencer, LA Bayou Bartholomew near Jones, LA Bayou Bartholomew near Beekman, LA Horse Bayou at Bastrop, LA Bayou De Loutre near Laran, LA Bayou De Loutre near Farmerville, LA Corney Bayou near Lillie, LA Little Corney Bayou near Lillie, LA Total drainage area (mi2) 661 59.6 0.79 860 54.9 154 2.90 44.8 21.1 93.9 80.4 0.65 37.3 140 0.82 0.57 0.22 0.49 1,187 1,645 2.05 141 241 462 208 Period of record 1933, 1947-54, 1956-57, 1961-85 1966-93 1967-69, 1972-75, 1977-81 1960-93 1966-83 1941-93 1968-81 1968-83 1954-68, 1974-93 1957-77, 1980-93 1969-87, 1989-93 1966-77, 1979-81 1966-93 1939-42, 1956-93 1968-81 1966-81 1968-81 1968-81 1958-93 1927, 1929-80 1967-81 1956-77 1966-83 1941-83 1956-93 Water year 1962 1933 1983 1975 1979 1989 1983 1945 1971 1975 1976 1984 1988 1989 1983 1974 1983 1983 1939 1975 1971 1979 1973 1979 1975 1991 1958 1975 1978 1974 1974 1958 1974 Stage (ft) 27.10 35.40 15.15 8.44 15.50 33.58 45.25 12.90 15.81 47.88 50.63 46.04 43.36 14.04 9.39 10.34 26.13 18.17 18.19 17.36 12.62 13.63 13.08 13.09 16.28 29.16 28.30 8.94 10.25 20.43 51.34 25.20 17.54 Dis- charge (ft3/s) 7,350 13,600 1,180 11,700 3,870 13,500 770 7,460 5,280 712 15,400 10,200 665 17,800 33,700 1,200 310 470 190 330 7,530 14,700 800 23,900 17,300 48,200 24,000 Significant floods during 1970-89 Date (month/ day/year) 1/22/79 5/21/83 5/06/75 5/18/89 12/27/82 5/19/89 12/20/70 5/03/75 12/10/83 5/18/89 12/27/82 4/12/74 12/27/82 12/27/82 6/28/89 5/06/75 10/12/70 9/21/79 4/17/73 7/08/75 7/19/89 3/18/73 4/30/75 6/09/74 6/10/74 6/09/74 6/09/74 Stage (ft) 26.93 15.15 8.44 33.58 45.25 11.30 15.81 47.88 46.04 14.04 9.39 10.34 26.13 18.17 17.09 17.36 12.62 13.63 13.08 16.28 27.30 26.79 8.94 20.43 51.34 24.24 17.54 Dis- charge (ft3/s) 7,260 13,600 1,180 11,700 3,870 10,300 770 7,460 5,280 15,400 10,200 665 17,800 33,700 11,700 1,200 310 470 190 330 6,990 10,400 800 23,900 17,300 43,600 24,000 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 50 " -- 10-25 20 - 50 50-100 >100 25 -- 25-50 5-10 10-25 -- 10-25 10 10 >100 >100 >100 100 Significant Floods, 1970 Through 1989, Louisiana 263 Table 19. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Louisiana Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 40) 07366350 07366403 07366420 07367250 07367300 07367600 07367630 07368558 07369360 07370000 07370530 07370575 07370600 07370660 07370700 07370750 07370820 07370840 07370930 07370950 07370980 07371500 07372110 07372113 07372200 Station name Stowe Creek near Farmerville, LA Bayou Choudrant tributary near Tremont, LA Bayou Choudrant near Calhoun, LA Guyton Creek near Eros, LA North Cheniere Creek at Cheniere, LA Cypress Creek near Vixen, LA Ouachita River at Columbia Lock and Dam near Riverton, LA Dry Fork at Archibald, LA Bushley Creek at Manifest, LA Bayou Macon near Delhi, LA Black Bayou near Kelly, LA Caney Creek near Chatham, LA Beaucoup Creek near Cotton Plant, LA Flat Creek near Olla, LA Beech Creek near Olla, LA Chickasaw (Big Chickasaw) Creek near Olla, LA Dugdemona River near Quitman, LA Choctaw Creek near Hodge, LA Cypress Creek at Quitman, LA Coulee Creek tributary near Hodge, LA Little Dugdemona River near Hodge, LA Dugdemona River near Jonesboro, LA Brushy Creek near Joyce, LA Dugdemona River tributary near Joyce, LA Little River near Rochelle, LA Total drainage area (mi2) 29.0 0.54 113 8.76 38.0 16.0 15,630 -- 64.7 782 51.9 48.8 127 103 58.0 47.6 117 16.5 91.8 0.46 20.0 355 24.0 0.14 1,899 Period of record 1954-68, 1974-83 1966-87, 1989-93 1966-93 1968-93 1954-68, 1974-83 1954-68, 1974-83 1913-71, 1973-93 1968-81 1984-93 1882, 1885-95, 1926-93 1966-83 1966-83 1951-68, 1974-93 1966-83 1954-68, 1974-83 1954-83 1965-83 1966-83 1966-83 1966-81 1965-83 1939-93 1965-93 1967-81 1958-93 Water year 1983 1989 1983 1983 1983 1974 1983 1927 1973 1979 1988 1991 1882 1983 1983 1966 1983 1974 1974 1966 1983 1983 1983 1974 1983 1983 1988 1975 1983 Stage (ft) 49.90 12.49 48.50 14.38 46.29 48.83 44.77 47.91 10.33 11.64 42.94 22.87 37.50 42.66 45.73 48.76 13.93 50.98 46.78 43.22 47.29 45.89 47.74 8.61 48.25 21.20 47.77 11.51 45.88 Dis- charge (ft3/s) 12,800 1,280 26,800 2,770 7,620 8,820 79,700 165 15,500 12,600 14,600 14,700 17,200 17,500 23,900 10,400 14,000 5,310 21,700 408 7,400 41,500 16,000 161 108,000 Significant floods during 1970-89 Pate (month/ day/year) 12/28/82 5/05/89 12/27/82 12/27/82 12/27/82 4/12/74 12/24/85 3/11/87 1/10/83 3/16/73 11/16/87 6/10/74 1/21/79 5/20/83 12/28/82 12/27/82 12/28/82 4/12/74 4/12/74 12/27/82 12/27/82 12/27/82 12/27/82 2/21/74 12/27/82 12/28/82 5/19/89 11/16/87 6/10/75 12/29/82 11/18/87 Stage (ft) 49.90 12.49 48.50 14.38 46.29 48.83 44.77 10.33 42.94 22.87 25.34 42.66 45.73 13.93 50.98 46.78 42.87 47.29 45.89 47.74 8.61 48.25 21.20 19.27 47.77 11.51 45.88 41.09 Dis- charge (ft3/s) 12,800 1,280 26,800 2,770 7,620 8,820 35,600 50,000 79,700 165 15,500 9,320 9,480 9,350 14,600 14,700 17,200 17,500 23,900 8,440 14,000 5,310 21,700 408 7,400 41,500 26,200 16,000 161 108,000 60,600 Regu- lated during flood1 N N N N N N N N Y N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 50-100 >100 50-100 50 50-100 25-50 :: - -- 10-25 10-25 10-25 >100 50-100 50-100 10-25 25-50 50-100 50-100 50-100 50-100 10-15 100 >100 25 25-50 10-15 50 10-15 264 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 19. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Louisiana Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 40) 07373000 07373250 073732865 07373450 07373640 07373700 07373965 07374000 07374590 07374700 07375000 07375170 07375185 07375222 07375300 07375345 07375463 07375480 07375500 07375800 07375920 07375960 07376000 Station name Big Creek at Pollock, LA Hemphill Creek at Nebo, LA Old river outflow channel at Knox Landing, LA Thompson Creek at Jackson, LA Hammer Creek tributary near Jackson, LA Thompson Creek near Starhill, LA South Canal near Baker, LA Mississippi River at Baton Rouge, LA North Carson Creek tributary near Sunny Hill, LA Tchefuncta River near Franklinton, LA Tchefuncta River near Folsom, LA Bogue Falaya at Covington, LA Little Bogue Falaya near Blond, LA Abita River north of Abita Springs, LA Tangipahoa River near Kentwood, LA Ashleys Brook near Kentwood, LA Chappepeela Creek near Husser, LA Chappepeela Creek southeast of Loranger, LA Tangipahoa River at Robert, LA Tickfaw River at Liverpool, LA Hoffman Creek near Greensburg, LA Tickfaw River at Montpelier, LA Tickfaw River at Holden, LA Total drainage area (mi2) 51.0 35.3 1,128,700 99.3 0.20 249 - 1,129,810 0.22 53.1 95.5 88.2 0.91 46.1 237 1.74 31.7 91.0 646 89.7 0.78 220 247 Period of record 1942-93 1979-93 1961-78 1949-59, 1972-73, 1975-88 1968-77, 1979-88 1949-68, 1973, 1975-83 1965-93 1828, 1832, 1844, 1849-52, 1858-59, 1862, 1869, 1871-1978 1968-76, 1978-81 1949-68, 1975-83 1944-93 1964-83 1967-81 1966-93 1951-68, 1974-83 1966-81 1966-83 1964-83 1921, 1939-93 1956-93 1967-81 1951-68, 1974-83 1941-93 Water year 1953 1988 1988 1975 1973 1973 1985 1979 1983 1967 1945 1927 1973 1983 1983 1983 1972 1981 1980 1983 1973 1983 1983 1983 1921 1983 1973 1974 1983 Stage (ft) 16.90 18.58 14.93 54.83 59.30 92.26 8.23 47.62 79.40 79.52 45.18 47.22 9.36 51.04 24.12 23.58 9.13 9.67 24.07 17.20 10.65 30.04 18.69 25.87 27.10 13.30 8.07 108.31 21.04 Dis- charge (ft3/s) 23,500 15,400 15,800 626,000 -- 40,300 614 98,400 2,430- 1,473,000- 261 26,900 29,800 12,700 502 -- 4,750 43,300 1,200 18,000 30,800 85,000 -- 32,000 715 28,400 22,400 Significant floods during 1970-89 Date (month/ day/year) 11/16/87 1 1/16/87 4/13/75 3/24/73 10/23/84 4/22/79 4/06/83 4/06/83 5/10/73 3/24/73 4/06/83 4/06/83 4/08/83 1/12/72 3/29/80 4/06/83 3/24/73 4/07/83 4/07/83 5/23/74 4/07/83 4/06/83 3/24/73 5/23/74 5/23/74 4/07/83 Stage (ft) 18.58 14.93 54.83 92.26 8.23 47.62 47.61 79.40 41.58 9.36 51.04 24.12 23.58 9.13 24.07 17.20 10.65 30.04 18.69 21.76 25.87 13.30 8.07 108.31 20.37 21.04 Dis- charge (frVs) 15,400 15,800 626,000 40,300 614 98,400 98,200 2,430 1,380,000 261 26,900 29,800 12,700 502 4,750 43,300 1,200 18,000 30,800 39,500 85,000 32,000 715 28,400 19,000 22,400 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 10-15 -- - 10-25 >100 25-50 25-50 - - 10-25 >100 25-50 25-50 10-25 5-10 100 10-25 50 25-50 10-15 -- 75-100 5-10 25-50 25 25-50 Significant Floods, 1970 Through 1989, Louisiana 265 Table 19. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Louisiana Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 40) 07376250 07376290 07376500 07376520 07377000 07377190 07377210 07377240 07377300 07377405 07377500 07377700 07377755 07377782 07377842 07378000 07378070 07378500 07379085 07380400 07381000 07381440 07381750 07381800 07381850 Station name Killian Brook near Maurepas, LA Blood River near Springfield, LA Natalbany River at Baptist, LA Little Natalbany River at Albany, LA Amite River near Darlington, LA Sandy Creek southeast of Clinton, LA Sandy Creek near Pride, LA Little Sandy Creek near Greenwell Springs, LA Amite River at Magnolia, LA Pretty Cree tributary near Clinton, LA Comite River near Olive Branch, LA Redwood Creek near Slaughter, LA White Bayou East Division Canal near Baton Rouge, LA White Bayou southeast of Zachary, LA White Bayou near Baker, LA Comite River near Comite, LA Beaver Bayou near Fred, LA Amite River near Denham Springs, LA North Branch Ward Creek tributary at Baton Rouge, LA Bayou LaFourche at Donaldsonville, LA Bayou LaFourche at Thibodaux, LA Bayou Grosse Tete at Rosedale, LA Spring Creek tributary near Hineston, LA Spring Creek near Glenmora, LA Hurricane Creek tributary at Forest Hills, LA Total drainage area (mi2) 1.88 26.6 79.5 40.6 580 17.2 69.9 28.2 884 0.29 145 41.1 45.0 284 0.17 1,280 0.13 -- 0.18 68.3 0.95 Period of record 1969-77, 1979-81 1964-69, 1971-83 1944-93 1966-83 1949-93 1966-83 1976-93 1975-93 1949-83, 1993 1968-81 1943-93 1966-83 1965-82, 1984, 1986-87, 1989-93 1965-93 1973-84, 1986-93 1944-93 1975-81, 1984-88 1921, 1939-93 1969-82, 1984-88 1958-81 1966-88, 1993 1965-80, 1984-86, 1988, 1990-93 1967-81 1953-86 1968-81 Water year 1973 1983 1983 1983 1967 1990 1983 1983 1992 1983 1989 1977 1980 1977 1961 1983 1979 1989 1983 1983 1977 1983 1953 1981 1983 1976 1980 1979 1988 1973 1988 1966 1973 1985 1953 1980 1979 Stage (ft) 9.30 19.94 20.80 29.79 30.95 22.05 16.22 21.31 18.21 26.69 64.32 51.91 10.33 22.88 23.37 18.63 17.19 77.77 23.24 16.78 17.25 29.72 30.64 12.46 41.50 11.86 9.44 7.46 7.64 11.00 14.33 9.76 18.00 20.50 9.40 10.25 Dis- charge (ft3/s) 340 2,850 9,810 10,800 7,950 104,000 13,000 11,800 5,730 14,700 85,100 735 22,400 19,900 7,020 1,550 4,730 888 661 37,000 20,500 27 112,000 127 642 510 1,230 5,170 194 9,200 740 Significant floods during 1970-89 Date (month/ day/year) 3/24/73 4/08/83 4/07/83 4/07/83 4/22/77 4/06/83 4/06/83 4/06/83 4/23/77 4/08/83 5/16/80 4/22/77 4/22/79 4/06/83 4/23/79 4/06/83 4/07/83 4/23/77 4/07/83 7/26/75 4/23/77 4/08/83 --/--/76 4/13/80 4/02/88 2/19/88 3/24/73 12/26/82 10/21/84 12/13/79 Stage (ft) 9.30 19.94 20.80 29.79 21.76 16.22 21.31 26.69 51.91 50.97 10.33 22.88 20.36 18.63 17.19 23.24 16.78 27.52 29.72 12.40 41.08 41.50 11.86 - 7.46 11.00 9.76 17.57 18.00 9.40 Dis- charge (ft3/s) 340 2,850 9,810 10,800 76,400 13,000 11,800 14,700 85,100 75,700 735 22,400 21,300 7,020 1,550 4,730 888 24,100 37,000 27 110,000 112,000 127 642 1,230 5,170 194 7,570 9,200 740 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 25-50 50-75 100 10-25 25-50 50-75 75-100 50 25-50 25-50 10-25 10-25 75-100 25-50 10 50-75 -- 50 50 ~ - 10-25 10-25 25-50 5-10 266 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 19. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Louisiana Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 40) 07382000 07382500 07383500 07385500 07385700 07386700 07386880 07386980 08011760 08011800 08012000 08012150 08012300 08012470 08013000 08013350 08013500 08013610 08013800 08014600 08015200 08015500 08016400 Station name Bayou Cocodrie near Clear water, LA Bayou Courtableau at Washington, LA Bayou des Glaises diversion channel at Moreauville, LA Bayou Teche at Arnaudville, LA Bayou Teche at Keystone Lock near St. Martinville, LA Ruth Canal near Ruth, LA Vermilion River at Surrey Street at Lafayette, LA Vermilion River at Perry, LA West Fork Caney Creek tributary (Mitchell) near Oakdale, LA Castor Creek near Oberlin, LA Bayou Nezpique near Basile, LA Mermentau River at Mermentau, LA Bayou Queue de Tortue at Riceville, LA Bayou Laccassine near Lake Arthur, LA Calcasieu River near Glenmora, LA Chinquapin Creek near Oberlin, LA Calcasieu River near Oberlin, LA Whiskey Chitto Creek tributary near Leesville, LA Little Sixmile Creek near Pitkin, LA Flat Creek near de Ridder, LA Dry Creek at Dry Creek, LA Calcasieu River near Kinder, LA Beckwith Creek near de Quincy, LA Total drainage area (mi2) 240 715 270 1,530 -- -- 1.25 43.9 527 1,381 299 499 1.80 753 0.32 10.4 26.3 42.7 1,700 148 Period of record 1923-24, 1938-88, 1990-93 1940, 1947-88, 1990-93 1944-88, 1990-93 1944-88, 1990-93 1913-88, 1990-93 1940, 1947-85 1968-74, 1985-88, 1990-93 1979-88, 1990-93 1967-81 1964-93 1939-93 1940-80, 1985-93 1898, 1943-49, 1986-88, 1990-93 1969-86, 1988-93 1944-93 1966-81 1923-24, 1939-93 1966-93 1954-83 1964-83 1954-68, 1975-93 1913, 1923-24, 1939-93 1946-84 Water year 1953 1953 1953 1953 1967 1973 1927 1983 1940 1988 1972 1986 1980 1973 1979 1979 1953 1986 1940 1986 1990 1986 1980 1953 1979 1953 1989 1978 1983 1983 1953 1983 1955 Stage (ft) 26.72 35.29 22.68 21.14 12.95 23.50 18.40 14.00 12.05 6.54 8.23 49.93 34.39 14.50 11.17 12.72 21.55 10.29 26.53 11.50 16.70 13.79 24.66 32.00 23.71 24.45 Dis- charge (ft3/s) 28,200 9,490 6,340 4,630 2,650 3,970 622 5,660 15,800 426 8,560 35,800 58,000 6,980 5,200 9,790 59,900 668 72,800 645 4,200 8,450 7,430 182,000 15,900 13,800 Significant floods during 1970-89 Date (month/ day/year) 12/28/82 10/31/85 12/29/71 12/06/71 4/21/77 12/06/71 9/05/73 6/06/78 12/04/82 5/16/84 2/23/88 10/28/85 3/24/73 9/20/79 10/28/85 11/01/85 9/24/85 11/02/85 7/05/89 10/31/85 10/30/85 6/29/89 9/20/79 12/30/82 7/02/89 6/28/89 10/11/77 12/27/82 9/20/79 12/27/82 12/29/82 7/02/89 12/27/82 Stage (ft) 23.28 22.63 ~ 20.54 -- 13.80 12.95 12.58 -- 6.54 49.93 48.93 30.65 - -- 20.46 10.29 24.33 25.70 11.50 16.70 13.79 24.60 24.66 26.22 26.28 23.71 Dis- charge (ft3/s) 7,240 5,270 7,520 4,980 4,000 3,500 3,970 3,380 622 558 5,660 15,800 426 8,560 7,120 29,100 34,900 58,000 38,200 6,980 9,790 47,300 668 51,000 54,000 645 4,200 8,450 7,300 7,430 100,000 101,000 15,900 Regu- lated during flood1 N N N N Y N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 50-100 25-50 25-50 25-50 -- -- -- -- 10 25 10-25 -- -- 20-25 10-25 25-35 30-40 5-10 30-40 50-100 10-20 10-20 25-35 25-35 50-60 Significant Floods, 1970 Through 1989, Louisiana 267 Table 19. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Louisiana Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 40) 08016600 08016800 08016990 08022765 08023080 08023270 08023400 08023424 08024030 08025500 08025850 08026200 08027500 08027550 08028000 08028700 08029700 Station name Hickory Branch near Kernan, LA Bear Head Creek near Starks, LA Cowards Gully near de Quincy, LA Bayou Castor near Funston, LA Bayou Grand Cane near Stanley, LA Bull Bayou near Hunter, LA Bayou San Patricio near Benson, LA Bayou San Patricio tributary number 2 near Converse, LA Bayou Scie at Zwolle, LA Bayou Toro near Toro, LA Pearl Creek at State Highway 1 1 1 at Bun- Ferry, LA Red Bank Creek at Evans, LA Bayou Anacoco near Leesville, LA Prairie Creek near Leesville, LA Bayou Anacoco near Rosepine, LA Hoosier Creek near Merryville, LA Brushy Creek at Bancroft, LA Total drainage area (mi2) 82.2 177 15.3 91.5 72.5 8.54 80.2 0.89 45.9 148 9.66 17.2 115 40.0 369 13.1 25.9 Period of record 1946-83 1954-84 1954-68, 1971-72 1972-86 1981-93 1964-83 1954-68, 1978-93 1967-81 1950-68, 1974-93 1956-86, 1990-93 1967-86, 1988-93 1953, 1966-83 1949-64, 1983 1949-68, 1974-83 1952-93 1956-81, 1983 1954-68, 1974-83 Water year 1983 1983 1971 1984 1989 1980 1958 1989 1980 1978 1989 1968 1984 1983 1983 1983 1953 1983 1983 Stage (ft) 28.60 18.32 17.30 15.29 15.37 14.57 20.36 21.19 8.24 10.33 17.90 25.73 12.78 21.95 48.11 48.11 28.38 13.12 18.52 Dis- charge (ft3/s) 12,900 19,100 7,000 4,860 9,450 672 21,300 16,700 450 22,400 31,200 3,300 6,010 33,600 34,200 64,300 3,860 8,440 Significant floods during 1970-89 Date (month/ day/year) 12/28/82 10/28/70 12/28/82 10/10/70 3/06/84 5/18/89 4/12/80 5/18/89 5/16/80 5/18/89 4/12/74 2/13/84 12/27/82 12/28/82 12/27/82 12/28/82 12/28/82 12/27/82 Stage (ft) 28.60 17.63 18.32 17.30 15.29 15.37 14.57 21.19 8.24 17.90 24.69 12.78 21.95 48.11 48.11 27.80 13.12 18.52 Dis- charge (ft3/s) 12,900 11,200 19,100 7,000 4,860 9,450 672 16,700 450 22,400 23,900 3,300 6,010 33,600 34,200 58,600 3,860 8,440 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 25 20-25 >100 25-50 5-10 25-50 50-100 25-35 5-10 100 40-50 >100 10-25 10-25 75-100 40-50 >100 50 1 Regulated during flood: N, no; Y, yes. 268 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Maine Hydroclimatology Maine is located in the extreme northeastern part of the United States with Canada to the north and east and the Atlantic Ocean to the south. Three airmasses dominate Maine's climate. These are the polar conti- nental, which are cold, dry airmasses originating in Canada and Arctic areas; tropical maritime, which are warm, moist airmasses originating in the Gulf of Mex- ico and adjacent subtropical water of the Atlantic Ocean; and polar maritime, which are cool, damp air- masses from the North Atlantic. Land-recycled mois- ture is also an important source of moisture because it supplements the major sources of moisture with evap- oration from lakes and reservoirs and from the land surface. Maine receives abundant precipitation annually. There is a generally uniform distribution of precipita- tion throughout the entire year. Mean annual precipita- tion in the northeast is 34 in. and 55 in. in the southeast. The statewide mean annual precipitation is about 42 in. (Paulson and others, 1991). Maine receives widespread flooding when frontal systems stall over the eastern seaboard causing intense rainfall. Flooding also occurs from rapid snowmelt, ice jams, and hurricanes. Smaller scale flooding in Maine results from convective thunderstorms in the summer months. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Maine is dependent on drainage area of the basin, channel slope, and storage, which is the area of lakes and ponds in the basin as a percentage of total area (Jennings and others, 1994). Significant Floods The flood of April 1987 was the most destructive in Maine's history. The flood was caused by a slow- moving frontal system. The intense rains associated with the frontal system combined with the melting snowpack and resulted in flooding conditions. Thir- teen strearnflow-gaging stations recorded record maximum discharges. During the April 1987 flood, 61 percent of the gaging stations in the State recorded significant discharges. Fourteen of Maine's 16 coun- ties were declared disaster areas, and damage esti- mates exceeded $100 million (Paulson and others, 1991). Seventeen percent of the strearnflow-gaging stations in the State recorded significant discharges in April 1983. The flood occurred in the Allagash River Basin. The maximum discharge of record was recorded on the Allagash River at Allagash (station 01011000, table 20). The location of strearnflow-gaging stations in Maine that had significant floods for 1970-89 is shown in figure 41 by station number. The specific data for each significant flood are listed in table 20. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94^002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Maine 269 01014700 0101 450-1 20 40 60 MILES 0 20 40 60 KILOMETERS EXPLANATION 01049000 is Streamflow-gaging station and number Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' Figure 41. Location of streamflow-gaging stations with significant floods during 1970-89 for Maine. 270 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 20. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maine [mi , square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; , not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals (calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1 995 Station number (fig. 41) 01010000 01010070 01010500 01011000 01013500 01014000 01014700 01015700 01015800 01017000 01017300 01017900 01018000 01018500 01019000 01021000 01021200 01021500 01021600 01022260 01022500 01022700 01023000 01026800 01029500 Station name St. John River at Ninemile Bridge, ME Big Black River near Depot Mountain, ME St. John River at Dickey, ME Allagash River near Allagash, ME Fish River near Fort Kent, ME St. John River below Fish River at Fort Kent, ME Factory Brook near Madawaska, ME Houlton Brook near Oxbow, ME Aroostook River near Masardis, ME Aroostook River at Washburn, ME Nichols Brook near Caribou, ME Marley Brook near Ludlow, ME Meduxnekeag River near Houlton, ME St. Croix River at Vanceboro, ME Grand Lake Stream at Grand Lake Stream, ME St. Croix River at Baring, ME Dennys River at Dennysville, ME Machias River at Whitneyville, ME Middle River near Machias, ME Pleasant River near Epping, ME Narraguagus River at Cherryfield, ME Forbes Pond Brook near Prospect Harbor, ME West Branch Union River at Amherst, ME Frost Pond Brook near Sedgwick, ME East Branch Penobscot Total drainage area (mi2) 1,341 171 2,680 1,229 873 5,665 5.87 5.45 892 1,654 3.99 1.47 175 413 227 1,374 92.9 458 8.26 60.6 227 9.15 148 4.84 1,086 Period of record 1951-95 1984-95 1947-95 1932-95 1904-08, 1930-95 1927-95 1964-74 1964-74 1958-95 1931-95 1964-74 1965-82 1941-82 1929-95 1929-95 1923, 1960-95 1956-95 1906-21, 1930-77 1965-74 1981-91 1948-95 1965-74 1909-10, 1912-19, 1930-79 1965-74 1903-82 Water year 1974 1987 1979 1983 1973 1979 1974 1973 1983 1983 1971 1973 1976 1984 1952 1923 1973 1961 1970 1989 1961 1970 1979 1970 1923 Stage (ft) 12.63 15.62 19.13 13.68 12.43 27.31 9.91 7.89 17.70 13.73 13.47 10.36 9.98 11.28 6.35 -- 9.35 16.92 5.19 10.77 17.40 4.94 9.44 8.82 16.90 Dis- charge (tf/s) 44,400 8,680 91,700 36,900 15,800 151,000 281 236 23,100 43,400 281 335 6,640 6,730 2,840 24,100 3,930 14,800 302 1,240 10,400 402 4,220 350 37,000 Significant floods during 1970-89 Date (month/ day/year) 5/01/74 8/06/81 4/01/87 5/01/74 4/29/79 4/29/73 4/18/83 4/30/73 4/26/83 5/01/74 4/30/79 5/02/74 4/29/73 4/19/83 4/30/73 5/02/74 4/19/83 10/03/70 7/05/73 4/03/76 4/29/73 4/04/76 6/03/84 4/25/83 4/04/76 4/29/73 4/03/76 4/02/70 5/13/89 5/12/89 4/02/70 3/25/79 2/04/70 4/29/73 Stage (ft) 12.63 11.30 15.62 18.67 19.13 12.33 13.68 12.43 11.75 26.95 27.31 9.91 7.89 17.70 13.68 13.58 13.73 13.47 10.36 9.98 10.43 10.88 11.28 6.69 12.27 9.35 15.15 5.19 10.77 15.70 4.94 9.44 8.82 14.71 Dis- charge (ft3/s) 44,400 39,000 7,420 87,200 91,700 29,400 36,900 15,800 14,000 148,000 151,000 281 236 23,100 43,100 42,500 43,400 281 335 6,640 6,040 6,670 6,730 2,600 20,600 3,930 12,400 302 1,240 7,250 402 4,220 350 30,600 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N Y Y Y Y Y Y N N N N N N N Y Recur- rence interval (years) 40-50 15-20 25-50 20 25-30 30 >100 >100 40 50 60 10-25 20-30 20 30-35 30 30-35 10-25 >50 20 5-10 10-15 10-15 35 20 >100 40-45 10 10-25 10-15 10 100 10-25 50-60 River at Grindstone, ME Significant Floods, 1970 Through 1989, Maine 271 Table 20. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maine Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 41) 01030000 01030300 01030400 01030500 01031500 01033000 01034000 01034500 01035000 01036390 01036500 01037430 01038000 01041000 01041900 01042500 01045000 01046500 01047000 01048000 01048100 01049000 01049130 01049265 Station name Penobscot River near Mattawamkeag, ME Trout Brook near Danforth, ME Gulliver Brook near Monarda, ME Mattawamkeag River near Mattawamkeag, ME Piscataquis River near Dover-Foxcroft, ME Sebec River at Sebec, ME Piscataquis River at Medford, ME Penobscot River at West Enfield, ME Passadumkeag River at Lowell, ME Penobscot River at Eddington, ME Kenduskeag Stream near Kenduskeag, ME Goose River at Rockport, ME Sheepscot River at North Whitefield, ME Kennebec River at Moosehead, ME Mountain Brook near Lake Parlin, ME Kennebec River at the Forks, ME Dead River at the Forks, ME Kennebec River at Bingham, ME Carrabassett River near North Anson, ME Sandy River near Mercer, ME Pelton Brook near Anson, ME Sebasticook River near Pittsfield, ME Johnson Brook at South Albion, ME Kennebec River at North Sidney, ME Total drainage area (mi2) 3,356 4.19 11.0 1,418 298 326 1,162 6,671 297 7,764 176 8.25 145 1,268 4.09 1,590 867 2,715 353 516 14.9 572 2.92 5,403 Period of record 1941-91 1964-73 1964-74 1903-95 1903-95 1925-82, 1985-93 1925-82, 1987, 1990-95 1902-95 1916-79 1979-95 1909-19, 1942-79, 1987 1964-74 1939-95 1920-82 1964-74 1902-95 1903-07, 1911-17, 1919-79 1908-09, 1931-95 1926-95 1929-79, 1987-95 1965-74 1929-95 1981-91 1979-93 Water year 1973 1970 1973 1936 1987 1936 1987 1923 1923 1987 1987 1972 1987 1974 1973 1984 1974 1984 1987 1987 1974 1987 1987 1987 Stage (ft) 16.89 6.50 5.25 15.34 22.62 14.46 18.65 25.15 9.40 23.53 15.84 7.83 13.71 9.74 10.05 13.78 8.92 15.61 26.66 19.25 9.79 15.53 12.34 39.31 Dis- charge (f^/s) 66,000 354 562 29,200 37,300 14,300 85,000 153,000 5,680 159,000 7,400 624 7,350 16,700 918 30,300 20,100 65,200 50,700 51,100 2,080 17,600 178 232,000 Significant floods during 1970-89 Date (month/ day/year) 4/29/73 4/29/79 4/02/87 4/25/70 7/05/73 4/06/76 4/28/79 4/01/87 4/02/87 4/29/79 4/01/87 4/30/73 4/19/83 4/02/87 4/05/76 4/03/87 4/01/87 3/23/72 12/18/73 4/01/87 5/03/74 9/25/81 7/05/73 12/22/73 4/18/83 6/01/84 -/~74 6/01/84 4/01/87 4/01/87 4/01/87 12/21/73 4/03/87 4/01/87 4/02/87 Stage (ft) 16.89 13.01 12.90 6.50 5.25 14.70 16.15 22.62 12.89 14.17 18.65 21.66 20.81 23.58 7.05 23.53 15.84 7.83 12.52 13.71 9.74 9.76 10.05 12.68 14.41 13.78 8.92 15.61 15.46 26.66 19.25 9.79 15.53 12.34 39.31 Dis- charge (ft3/s) 66,000 53,000 55,400 354 562 27,600 19,300 37,300 11,000 50,200 85,000 128,000 118,000 147,000 3,660 159,000 7,400 624 6,420 7,350 16,700 16,700 918 24,900 28,300 30,300 20,100 65,200 63,400 50,700 51,100 2,080 17,600 178 232,000 Regu- lated during flood1 Y Y Y N N N N N Y N N Y Y Y N Y N N N N Y Y N Y Y Y Y Y Y N N N N N Y Recur- rence interval (years) 75 20-25 30 10-25 25-50 20 25 >500 100 25-30 250-500 35 25 100 20 - 50-75 5-10 75 >100 30 30 >50 30 60-70 100 30-40 75-100 50-75 >100 >100 20-30 >100 10-25 >100 272 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 20. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maine Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 41) 01049300 01049373 01049500 01049550 01049700 01054200 01054500 01055000 01055300 01055500 01057000 01058500 01059000 01060000 01062700 01064200 01065500 01066000 01066500 01069500 01069700 Station name North Branch Tanning Brook near Manchester, ME Mill Stream at Winthrop, ME Cobbosseecontee Stream at Gardiner, ME Togus Stream at Togus, ME Gardiner Pond Brook at Dresden Mills, ME Wild River at Gilead, ME Androscoggin River at Rumford, ME Swift River near Roxbury, ME Bog Brook near Buckfield, 1 ME Nezinscot River at Turner Center, ME Little Androscoggin River near South Paris, ME Little Androscoggin River near Auburn, ME Androscoggin River near Auburn, ME Royal River at Yarmouth, ME Patte Brook near Bethel, ME Mill Brook near Old Orchard Beach, ME Ossipee River at Cornish, ME Saco River at Cornish, ME Little Ossipee River near South Limington, ME Mousam River near West Kennebunk, ME Branch Brook near Kennebunk, ME Total drainage area (mi2) 0.93 32.7 217 23.7 8.00 69.6 2,068 96.9 10.4 169 73.5 328 3,263 141 5.65 2.15 452 1,293 168 99.0 10.3 Period of record 1964-83 1978-92 1891-1964, 1977-95 1982-95 1965-74 I960, 1965-95 1892-1995 1930-95 1964-74 1942-95 1914-23, 1932-95 1936, 1941-82 1870, 1896, 1929-95 1950-95 1965-74 1965-74 1917-95 1917-95 1936, 1941-82 1940-84 1965-74 Water year 1974 1987 1936 1987 1974 1960 1936 1960 1970 1953 1987 1977 1936 1977 1973 1973 1936 1936 1936 1983 1972 Stage (ft) 3.89 6.16 -- 7.50 8.96 15.60 -- 12.87 8.75 11.18 12.22 10.42 27.57 8.46 6.34 4.96 16.32 21.90 -- 5.64 6.34 Dis- charge (ft3/s) 195 1,330 5,020 1,010 456 18,100 74,000 16,800 289 13,900 9,340 8,230 135,000 11,500 664 208 17,200 46,600 8,530 4,020 723 Significant floods during 1970-89 Date (month/ day/year) 12/17/73 4/02/87 4/01/87 4/01/87 12/17/73 3/31/87 4/06/84 4/01/87 4/01/87 2/11/70 3/15/77 4/01/87 4/06/84 4/01/87 3/16/77 4/02/87 3/13/77 4/01/87 7/01/73 4/02/73 4/02/87 4/03/87 3/15/77 3/14/77 3/20/83 5/04/72 Stage (ft) 3.89 6.16 10.04 7.50 8.96 13.03 23.22 12.54 8.75 8.69 10.20 10.47 12.22 10.42 23.71 8.46 7.83 6.34 4.96 10.90 16.54 7.04 5.82 5.64 6.34 Dis- charge (ft3/s) 195 1,330 4,240 1,010 456 13,600 47,000 63,900 15,900 289 8,530 11,600 5,890 9,340 8,230 103,000 11,500 8,440 664 208 9,460 31,300 5,760 3,540 4,020 723 Regu- lated during flood1 N N Y N N N Y Y N N N N N N Y Y N N N N N N N Y Y N Recur- rence interval (years) 50-100 50-100 30-35 25-50 >50 15 20 100-250 25 10 30 >100 30-35 >100 20-25 >100 >100 20-25 10-25 10-25 25 >100 40-50 50 75-100 10-25 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Maine 273 Maryland and the District of Columbia Hydroclimatology Maryland is located in the mid-Atlantic region of the eastern seaboard. The three main airmasses affect- ing Maryland's climate are cool, moist maritime air from the Atlantic Ocean, warm, moist tropical air from the Gulf of Mexico and subtropical Atlantic, and cool, dry continental air from Canada. During the summer and early fall, moisture from the Atlantic Ocean often originates from a tropical airmass having surface dew- points greater than about 70 °F. During winter, air moving inland from the Atlantic Ocean at low eleva- tions is considered to be polar maritime air. Air from the Gulf of Mexico, moving northward both east and west of the Appalachian Mountains, is considered to be tropical maritime in origin. During winter, this trop- ical air often will overrun colder air near the land sur- face between the mountains and the coast. This overrunning typically creates slow, steady rainfall. Mean annual precipitation is greatest (52 in.) in the mountainous, extreme western part of Maryland. Precipitation just east of the mountains decreases to approximately 40 in., then increases again to nearly 48 in. along the eastern coast. Statewide mean annual precipitation in Maryland averages 42 in. The District of Columbia has mean annual precipitation of 43 in. (Paulson and others, 1991). Floods in Maryland typically are caused by intense "northeasters" or by hurricanes. These floods tend to be widespread and result in extensive damage. Floods also can be the result of convective thunder- storms. These storms tend to result in flash floods that affect only a local area. Melting of a large snowpack, especially when combined with rainfall, can result in some flooding. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the factors affecting the magnitude of maximum discharges for streams in Maryland and the District of Columbia are drainage area; channel slope; percentage of basin area covered by forests; percent- age of basin occupied by lakes, ponds, and swamps; 2-year, 24-hour precipitation; and soil permeability. The equations are applicable only to streams draining natural basins without urban development or regulated flow (Jennings and others, 1994). Significant Floods The flood of June 1972 was the largest flood that occurred during 1970-89. Forty-four percent of the streamflow-gaging stations in Maryland and the Dis- trict of Columbia recorded signficant discharges. The flood was caused by Hurricane Agnes. It affected cen- tral Maryland, the District of Columbia, and the Sus- quehanna River Basin. Maximum discharges greater than the 100-year recurrence interval were recorded throughout a wide area. In some areas, discharges more than twice the 100-year recurrence interval were recorded. This flood was probably the largest natural disaster in Maryland history. Twenty percent of the streamflow-gaging stations in Maryland and the District of Columbia recorded significant discharges during the flood of Septem- ber 1975. The flood was a result of Hurricane Eloise. Two floods occurred during 1979. The combina- tion of the two floods caused 22 percent of the gaged streams to have significant discharges. In Febru- ary 1979, flooding was caused by rapid melting of 10 to 18 in. of snow that had fallen on February 19. With the ground frozen, nearly all of the snowmelt became runoff. Moderate temperatures resulted in rapid melting of the snow, and the ground quickly became saturated. The second flood of 1979 was a result of Hurricane David in early September, and the severest flooding was limited to small areas in and near Baltimore and in Washington, D.C. The location of streamflow-gaging stations in Maryland and the District of Columbia that had signif- icant floods for 1970-89 is shown in figure 42 by sta- tion number. The specific data for each significant flood are listed in table 21. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 274 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 03071 c5' Q. q 55' 01495000 I J3075500 01595600/'%/ 594936 11594930 Base from U.S. Geological Survey digital data, 1 -.2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 016101K 30' oi610m016130M 016131507? "PENNSYLVANIA3!0' "" ~ ~ 01646500 DISTRICT OF COLUMBIA Washington, D.C. EXPLANATION 01596005 ia Streamflow-gaging station and number 60 MILES 0 20 40 60 KILOMETERS Figure 42. Location of streamflow-gaging stations with significant floods during 1970-89 for Maryland and District of Columbia. Table 21 . Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maryland and District of Columbia [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig- 42) 01485000 01485500 01486000 01486100 01489000 01490000 01491000 01492050 01493000 01493500 01495000 01496000 01496080 01577940 01578310 01578500 01580000 01580200 01581500 01581700 01582000 01582510 01583000 01583495 01583500 Station name Pocomoke River near Willards, MD Nassawango Creek near Snow Hill, MD Manokin Branch near Princess Anne, MD Andrews Branch near Delmar, MD Faulkner Branch at Federalsburg, MD Chicamacomico River near Salem, MD Choptank River near Greensboro, MD Gravel Run at Beulah, MD Unicorn Branch near Millington, MD Morgan Creek near Kennedyville, MD Big Elk Creek at Elk Mills, MD Northeast Creek at Leslie, MD Northeast River tributary near Charlestown, MD Broad Creek tributary at Whiteford, MD Susquehanna River at Conowingo, MD Octoraro Creek near Rising Sun, MD Deer Creek at Rocks, MD Deer Creek near Kalmia, MD Bynum Run at Bel Air, MD Winters Run near Benson, MD Little Falls at Blue Mount, MD Piney Creek near Hereford, MD Slade Run near Glyndon, MD Western Run tributary at Western Run, MD Western Run at Western Run, MD Total drainage area (mi2) 60.5 44.9 4.80 4.10 7.10 15.0 113 8.40 22.3 12.7 52.6 24.3 1.70 0.77 27,100 193 94.4 125 8.52 34.8 52.9 1.50 2.09 0.26 59.8 Period of record 1950-94 1950-94 1951-71, 1975-94 1967-76 1950-91 1951-80 1948-94 1966-76 1948-94 1951-94 1884, 1932-94 1949-84 1967-76 1971-86 1968-94 1884, 1918, 1932-58, 1963, 1965-77 1927-94 1967-77 1945-50, 1955-72 1967-94 1933, 1945-94 1966-79 1948-81 1967-76 1945-94 Water year 1989 1979 1989 1969 1985 1973 1975 1979 1967 1975 1960 1972 1884 1972 1975 1984 1972 1884 1933 1972 1972 1972 1972 1979 1972 1972 1975 1972 Stage («) 15.41 7.95 9.07 5.44 7.08 8.00 5.98 4.99 14.47 7.40 7.17 13.07 19.00 8.41 7.70 12.40 36.83 24.30 17.70 16.08 8.32 11.60 18.54 20.60 4.80 8.10 9.70 26.00 Dis- charge (ft'/s) 2,820 1,940 1,070 547 347 191 1,680 715 6,970 690 1,060 7,500 18,000 4,800 700 1,390 1,130,000 60,000 13,600 16,800 4,650 7,600 8,280 1,450 515 515 195 38,000 Significant floods during 1970-89 Date (month/ day/year) 2/26/79 8/20/89 2/26/79 9/06/79 8/22/73 7/13/75 5/30/84 8/03/73 2/26/79 2/26/79 7/13/75 6/22/72 6/22/72 6/22/72 6/22/72 7/20/75 7/01/84 6/24/72 6/22/72 6/22/72 6/22/72 6/22/72 6/22/72 6/22/72 9/26/75 9/06/79 6/22/72 6/22/72 6/22/72 9/26/75 9/06/79 Stage (ft) 13.88 15.41 7.95 5.28 8.00 5.98 5.59 4.48 4.99 13.61 7.40 7.03 13.07 13.46 8.41 7.70 12.40 36.83 18.92 17.09 16.08 8.32 11.60 18.54 15.29 20.60 4.80 -- 26.00 12.56 13.22 Dis- charge (frVs) 1,870 2,820 1,940 361 191 1,680 1,290 542 715 6,110 690 1,020 7,500 8,720 4,800 700 1,390 1,130,000 29,000 12,200 16,800 4,650 7,600 8,280 6,840 1,450 515 515 38,000 7,990 8,800 Regu- lated during flood1 N N N N N N N Y Y N N N N N N N N Y Y N N N N N N N N N N N N Recur- rence interval (years) 40 >100 >100 15 15 50 25 15 35 35 20 25 >100 25 40-45 >50 >25 >100 35 50 >50 60 20 50 25 25 20 25 >500 15 20 276 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 21 . Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maryland and District of Columbia Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 42) 01583580 01583600 01584050 01584500 01585100 01585200 01585300 01585400 01585500 01586000 01586210 01586610 01587050 01587500 01588000 01589000 01589100 01589200 01589240 01589300 01589330 01589440 01589500 01591000 Station name Baisman Run at Broadmoor, MD Beaverdam Run at Cockeysville, MD Long Green Creek at Glen Arm, MD Little Gunpowder Falls at Laurel Brook, MD Whitemarsh Run at White Marsh, MD West Branch Herring Run at Idlewylde, MD Stemmers Run at Rossville, MD Brien Run at Stemmers Run, MD Cranberry Branch near Westminster, MD North Branch Patapsco River at Cedarhurst, MD Beaver Run near Finksburg, MD Morgan Run near Louisville, MD Haymeadow Branch tributary at Poplar Springs, MD South Branch Patapsco River at Henryton, MD Piney Run near Sykesville, MD Patapsco River at Hollofield, MD East Branch Herbert Run at Arbutus, MD Gwynns Falls near Owings Mills, MD Gwynns Falls at McDonogh, MD Gwynns Falls at Villa Nova, MD Dead Run at Franklintown, MD Jones Falls at Sorrento, MD Sawmill Creek at Glen Burnie, MD Patuxent River near Unity, MD Total drainage area (mi2) 1.47 20.9 9.40 36.1 7.61 2.13 4.46 1.97 3.29 56.6 14.0 28.0 0.54 64.4 11.4 285 2.47 4.90 19.3 32.5 5.52 25.2 4.97 34.8 Period of record 1965-76 1983-94 1976-94 1927-73, 1975-85 1960-89, 1992-94 1958-87 1960-72, 1974-89 1959-87 1949-94 1946-94 1983-94 1983-94 1966-76 1949-80 1932-74 1933, 1945-91, 1994 1956, 1958-89 1959-75 1958, 1960, 1962-67, 1971-73, 1975-84 1956-88 1960-87 1958-88 1933, 1945-52, 1965-70, 1984-94 1945-94 Water year 1972 1984 1984 1984 1971 1971 1971 1971 1975 1972 1989 1989 1971 1972 1972 1956 1972 1979 1984 1972 1972 1972 1972 1972 1989 1971 Stage (ft) 6.08 12.10 6.70 11.40 14.05 6.80 11.34 10.75 7.47 20.75 5.70 8.30 10.60 28.14 11.00 12.00 31.30 6.80 7.51 5.70 18.80 21.50 12.50 18.11 5.12 18.60 Dis- charge (ft3/s) 692 3,370 3,250 11,800 8,000 1,740 5,950 3,500 2,220 27,800 2,150 3,400 630 26,900 9,700 7,380 80,600 2,460 1,060 5,500 14,700 16,200 7,400 13,800 178 21,800 Significant floods during 1970-89 Date (month/ day/year) 6/22/72 7/01/84 7/01/84 6/22/72 7/01/84 8/01/71 8/27/78 9/11/71 9/06/79 8/01/71 8/01/71 9/26/75 1/20/88 6/22/72 9/26/75 5/06/89 5/06/89 9/11/71 6/22/72 9/26/75 6/22/72 6/22/72 9/26/75 9/06/79 6/14/81 6/22/72 6/22/72 6/22/72 8/13/84 6/22/72 6/22/72 9/06/79 8/29/89 9/11/71 6/22/72 Stage (ft) 6.08 12.10 6.70 10.18 11.40 14.05 11.73 6.80 6.68 11.34 10.75 7.47 3.10 20.75 16.59 5.70 8.30 10.60 28.14 21.16 11.00 31.30 22.80 6.80 5.89 5.70 18.80 21.50 15.50 12.50 18.11 17.20 5.12 18.60 16.10 Dis- charge (frVs) 692 3,370 3,250 9,030 11,800 8,000 3,880 1,740 1,660 5,950 3,500 2,220 1,400 27,800 15,300 2,150 3,400 630 26,900 14,600 9,700 80,600 46,500 2,460 2,130 5,500 14,700 16,200 8,690 7,400 13,800 11,700 178 21,800 14,500 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N Y Y N N N N N N N N N N N N Recur- rence interval (years) 20 20 20 20 55-60 >100 25 20 15 >100 >100 50 20 >100 80-85 10 10 20 >100 35 >100 >100 55 55 35 >100 >100 >100 35 45 >100 85 20-25 >100 55 Significant Floods, 1970 Through 1989, Maryland and District of Columbia 277 Table 21 . Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maryland and District of Columbia Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 42) 01591610 01591700 01592500 01593350 01593500 01594000 01594440 01594500 01594930 01594936 01595000 01595500 01595800 01596005 01596500 01597500 01601500 01610000 01610105 01610150 01610155 01613000 Station name Patuxent River below Brighton Dam near Brighton, MD Hawlings River near Sandy Spring, MD Patuxent River near Laurel, MD Little Patuxent River tributary at Guilford Downs, MD Little Patuxent River at Guilford, MD Little Patuxent River at Savage, MD Patuxent River near Bowie, MD Western Branch near Largo, MD Laurel Run at Dobbin Road near Wilson, MD North Fork Sand Run near Wilson, MD North Branch Potomac River at Steyer, MD North Branch Potomac River at Kitzmiller, MD North Branch Potomac River at Barnurn, WV Savage River near Frostburg, MD Savage River near Barton, MD Savage River below Savage River Dam near Bloomington, MD Wills Creek near Cumberland, MD Potomac River at Paw Paw, WV Pratt Hollow tributary at Pratt, MD Bear Creek at Forest Park, MD Sideling Hill Creek near Bellegrove, MD Potomac River at Hancock, MD Total drainage area (mi2) 78.6 27.0 132 0.95 38.0 98.4 348 30.2 8.23 1.91 73.0 225 266 1.50 49.1 106 247 3,109 0.70 10.4 102 4,073 Period of record 1981-94 1979-94 1945-94 1966-67, 1969-76 1933-94 1933, 1940-66, 1968,1972, 1975-80, 1986-94 1978-94 1950-74 1980-94 1980-94 1955-94 1950-94 1967-94 1971-76, 1978-86 1949-94 1949-94 1924, 1930-94 1877, 1889, 1924, 1928, 1936, 1939-94 1971-83, 1985-86 1965-69, 1971-83 1968-77 1889, 1924, 1929, Water year 1989 1979 1972 1972 1975 1972 1972 1979 1971 1986 1985 1986 1986 1955 1978 1985 1955 1986 1936 1936 1972 1972 1972 1936 Stage («) 10.26 8.80 25.00 10.30 13.40 18.38 25.40 18.52 8.97 10.10 10.47 13.14 14.85 16.50 13.37 20.65 8.45 7.81 20.20 54.00 12.80 11.70 12.44 47.60 Dis- charge (ft3/s) 2,650 4,300 26,000 620 410 12,400 35,400 11,500 1,760 863 895 11,500 50,400 33,400 27,100 150 7,510 8,550 38,100 240,000 110 1,450 14,200 340,000 Significant floods during 1970-89 Date (month/ day/year) 5/06/89 9/06/79 9/12/71 6/22/72 9/26/75 6/22/72 6/22/72 9/26/75 6/22/72 9/26/75 9/06/79 8/27/71 1/05/85 5/31/85 1/05/85 1/05/85 7/03/78 5/06/88 2/24/85 1/05/85 1/04/85 8/13/84 1/05/85 6/22/72 6/22/72 6/22/72 1/06/85 Stage (ft) 10.26 8.80 18.50 25.00 19.84 10.30 18.38 13.39 25.40 16.74 18.52 8.97 10.10 10.47 13.14 14.85 13.37 8.29 20.65 6.57 7.81 14.94 53.58 12.80 11.70 12.44 41.20 Dis- charge (ft3/s) 2,650 4,300 12,000 26,000 17,000 620 12,400 5,370 35,400 12,300 11,500 1,760 863 895 11,500 50,400 27,100 7,150 150 4,320 8,550 24,000 235,000 110 1,450 14,200 207,000 Regu- lated during flood1 Y N Y Y Y N N N N N Y N N N N N N Y N N Y N N N N N N Recur- rence interval (years) 15 -- 15 >100 20 >100 25 20-25 10 25-30 25 50 >100 25 25 30 -- 55 >100 30 50 100 50 01613150 Ditch Run near Hancock, MD 1933-94 4.80 1965-86 1978 9.90 650 8/04/78 9.90 650 N 30 278 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 21. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maryland and District of Columbia Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 42) 01613160 01614500 01617800 01619000 01619500 01637000 01637500 01637600 01638500 01639000 01639095 01639500 01640000 01640500 01640700 01640965 01640970 01641000 01641500 01642400 01642500 01643000 01643500 01644420 01645000 Station name Potomac River tributary near Hancock, MD Conococheague Creek at Fairview, MD Marsh Run at Grimes, MD Antietam Creek near Waynesboro, PA Antietam Creek near Sharpsburg, MD Little Catoctin Creek at Harmony, MD Catoctin Creek near Middletown, MD Hollow Road Creek near Middletown, MD Potomac River at Point of Rocks, MD Monocacy River at Bridgeport, MD Piney Creek tributary at Taneytown, MD Big Pipe Creek at Bruceville, MD Little Pipe Creek at Avondale, MD Owens Creek at Lantz, MD Owens Creek tributary near Rocky Ridge, MD Hunting Creek near Foxville, MD Hunting Creek tributary near Foxville, MD Hunting Creek at Jimtown, MD Fishing Creek near Lewistown, MD Dollyhyde Creek at Libertytown, MD Linganore Creek near Frederick, MD Monocacy River at Jug Bridge near Frederick, MD Bennett Creek at Park Mills, MD Bucklodge Branch tributary near Barnesville, MD Seneca Creek at Dawsonville, MD Total drainage area (mi2) 1.20 494 18.9 93.5 281 8.83 66.9 2.30 9,651 173 0.62 102 8.10 5.93 1.20 2.14 4.01 18.4 7.29 2.70 82.3 817 62.8 0.27 101 Period of record 1965-76 1889, 1924, 1929-94 1964-94 1949-51, 1966-81 1928-94 1948-77 1948-94 1965-74, 1977 1889, 1895-1994 1933, 1942-94 1967-76 1948-94 1948-56, 1959-80 1932-84 1967-77 1982-94 1982-91 1950-92 1948-84 1967-76 1933-82 1889, 1930-94 1949-58, 1960-94 1967-76 1931-94 Water year 1974 1972 1985 1972 1956 1952 1977 1977 1977 1936 1933 1975 1975 1972 1935 1977 1988 1988 1977 1977 1972 1972 1972 1972 1972 1972 Stage («) 6.50 24.50 4.45 12.33 16.73 8.49 9.29 14.13 13.30 41.03 25.00 12.00 18.98 10.45 8.40 17.70 4.71 3.78 6.32 5.75 13.20 19.46 35.90 22.10 13.80 16.40 Dis- charge (ft3/s) 250 32,400 459 5,430 12,600 5,400 4,770 12,000 2,000 480,000 23,000 300 28,000 2,400 3,270 1,370 814 1,905 2,670 2,200 1,620 20,100 81,600 32,200 400 26,100 Significant floods during 1970-89 Date (month/ day/year) 10/29/73 6/23/72 2/15/84 2/26/79 2/12/85 6/22/72 6/23/72 9/26/75 10/09/76 6/22/72 10/09/76 10/09/76 6/23/72 6/22/72 10/09/76 9/26/75 6/22/72 9/26/75 6/22/72 9/26/75 10/09/76 9/05/79 10/09/76 5/19/88 5/19/88 10/09/76 9/06/79 10/09/76 9/05/79 6/21/72 6/22/72 9/26/75 6/23/72 9/26/75 9/12/71 6/21/72 6/21/72 9/12/71 6/22/72 9/06/79 Stage (ft) 6.50 24.50 17.97 4.41 4.45 12.33 14.30 14.71 9.29 12.28 14.13 13.30 37.43 24.05 23.18 12.00 17.86 18.98 10.45 9.94 7.13 7.75 17.70 4.71 3.78 6.32 6.12 5.75 3.83 13.20 19.46 13.85 35.90 30.80 14.33 22.10 13.80 16.32 16.40 12.69 Dis- charge (ft3/s) 250 32,400 21,500 450 459 5,430 9,880 10,100 4,770 9,390 12,000 2,000 347,000 21,300 19,200 300 22,800 28,000 2,400 2,240 2,180 2,680 1,370 814 1,905 2,670 2,470 2,200 678 1,620 20,100 7,850 81,600 61,200 13,000 32,200 400 25,900 26,100 16,000 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y N N N N N N N N Recur- rence interval (years) 75-80 >100 50 15 15 30 40 40 60 30 55 >100 55 50-55 35 10 85 >100 25 20-25 20-25 30-35 >100 35 20-25 30-35 25 85-90 10-15 15-20 >100 20 >100 100 35 >100 45 100 100 35 Significant Floods, 1970 Through 1989, Maryland and District of Columbia 279 Table 21. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maryland and District of Columbia Continued Maximum stage and discharge for period of record through 1994 Station number (fig- 42) 01645200 01646500 01646550 01647720 01647740 01649500 01650050 01650085 01650190 01650500 01651000 01653500 01653600 01658000 01660900 01660930 01661050 03075450 03075500 03075600 03076500 03076505 03076600 Station name Watts Branch at Rockville, MD Potomac River near Washington, D.C., Little Falls pump station Little Falls Branch near Bethesda, MD North Branch Rock Creek near Norbeck, MD North Branch Rock Creek near Rockville, MD Northeast Branch Anacostia River at Riverdale, MD Northwest Branch Anacostia River at Norwood, MD Nursery Run at Cleverly, MD Batchellors Run at Oakdale, MD Northwest Branch Anacostia River near Colesville, MD Northwest Branch Anacostia River near Hyattsville, MD Henson Creek at Oxon Hill, MD Piscataway Creek at Piscataway, MD Mattawoman Creek near Pomonkey, MD Wolf Den Branch near Cedarville, MD Clark Run near Bel Alton, MD St. Clement Creek near Clements, MD Little Youghiogheny River tributary at Deer Park, MD Youghiogheny River near Oakland, MD Toliver Run tributary near Hoyes Run, MD Youghiogheny River at Friendsville, MD Youghiogheny River tributary near Friendsville, MD Bear Creek at Friendsville, MD Total drainage area (mi2) 3.70 11,560 4.10 9.73 12.5 72.8 2.45 0.35 0.47 21.1 49.4 16.7 39.5 54.8 2.30 11.2 18.5 0.57 134 0.53 295 0.22 48.9 Period of record 1958-87 1931-94 1945-84 1967-77 1968-77 1933, 1939-94 1967-76 1967-76 1967-76 1924-83 1933, 1939-94 1949-78 1966-94 1950-86 1967-80 1966-76 1969-94 1965-76 1936, 1942-94 1965-86 1899-1905, 1923-31, 1940-94 1965-76 1965-94 Water year 1975 1936 1966 1945 1972 1972 1972 1933 1972 1972 1975 1972 1972 1971 1979 1955 1975 1972 1979 1972 1955 1936 1984 1924 1974 1971 Stage (ft) 7.32 28.10 6.82 7.50 14.10 6.10 9.52 15.50 6.25 4.85 4.36 15.89 14.47 7.63 11.21 7.52 9.60 8.91 6.96 5.30 12.16 15.30 8.84 14.20 3.80 9.60 Dis- charge (ft3/s) 3,400 484,000 2,680 2,340 10,100 420 12,000 10,500 3,750 695 750 11,000 18,000 3,440 8,500 9,300 750 4,800 4,500 40 11,800 -- 195 15,600 18 4,650 Significant floods during 1970-89 Date (month/ day/year) 6/21/72 9/26/75 6/24/72 6/21/72 6/22/72 6/22/72 6/22/72 9/26/75 6/21/72 6/21/72 7/15/75 6/22/72 7/15/75 9/05/79 6/22/72 9/26/75 9/06/79 8/04/71 9/06/79 9/26/75 9/25/75 6/22/72 9/06/79 6/29/72 1/05/85 4/05/84 1/05/85 5/18/74 9/14/71 7/09/85 Stage (ft) 7.22 7.32 22.03 6.62 14.10 6.10 9.52 10.57 6.25 4.85 4.36 15.89 12.24 11.47 14.47 11.17 9.40 7.63 11.21 7.40 9.60 8.91 6.96 5.30 12.07 8.84 8.59 3.70 9.60 6.58 Dis- charge (tf/s) 2,900 3,400 359,000 2,540 10,100 420 12,000 10,800 3,750 695 750 11,000 6,640 6,300 18,000 14,800 12,000 3,440 8,500 8,700 750 4,800 4,500 40 11,700 195 13,000 18 4,650 2,630 Regu- lated during flood1 N N N N N Y N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 25 30 35 20 >100 25 65 45 >100 35 25 >100 50 45 100 60 35 20 70-75 40 55 70 30 5 50 >100 30 5 65-70 10 280 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 21 . Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Maryland and District of Columbia Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 42) Total drainage area Period of Water Station name (mi2) record year Dis- Stage charge (ft) (ftS/s) Significant floods during 1970-89 Date (month/ day/year) Stage (ft) Dis- charge (ft3/s) Regu- lated during flood1 Recur- rence interval (years) 03077700 North Branch Casselman River tributary at Foxtown, MD 1.00 1965-76 1971 6.30 84 9/14/71 6.30 84 10 1 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Maryland and District of Columbia 281 Massachusetts Hydroclimatology Massachusetts is located in the northeastern part of the United States with the Atlantic Ocean on its eastern side. Massachusetts' climate is governed by airmasses from Canada, which are cold and dry, from the northern Atlantic, which are cool and damp, and from the Gulf of Mexico, which are warm and moist. Mean monthly precip- itation throughout the year in Massachusetts is fairly uniform. Mean annual precipita- tion increases from east to west. The western part of the State receives about 52 in. of precipitation annually, whereas the coastal areas of the State typically receive 45 in. of precipitation per year (Paulson and others, 1991). Floods in Massachusetts can be caused by intense spring rains in conjunction with the melting of the snowpack. Hurricanes in the late summer and fall and coastal "north- easters" during the winter can also produce widespread flooding. On the basis of regionalization procedures that relate flood characteristics to water- shed and climatic characteristics, the magnitude of maximum discharges for streams in Massachusetts is affected by drainage area and hydraulic head, which is measured as the difference between the mean basin elevation and the elevation at the most down- stream streamflow-gaging station (Jennings and others, 1994). Significant Floods The most significant flood during 1970-89 occurred from March 31 to April 10, 1987. This flood was caused by two major storms. The first storm to hit the area was a fast-moving weather system that caused rains on a near-record snowpack. The second storm to hit the area was a slow-moving weather system that produced intense rainfall. Flooding was most severe in the northeastern and northwestern areas of the State. Twenty-seven percent of the streamflow-gaging stations in Massachusetts recorded sig- nificant discharges. The flood of 1979 was caused by intense rains from January 21 to 25. Central and eastern Massachusetts were affected by this flood. Twenty-three percent of the stream- flow-gaging stations in the State recorded significant discharges. The flood of 1984 was caused by a prolonged 6-day storm. The flood affected all but the southeastern part of the State. Thirteen percent of the streamflow-gaging stations recorded significant dis- charges. The location of streamflow-gaging stations in Massachusetts that had significant floods for 1970-89 is shown in figure 43 by station number. The specific data for each significant flood are listed in table 22. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geo- logical Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geological Survey Water-Resources Investigations Report 94^002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 282 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 to o B> 3 Tl O O Q. 73L° VERMONT n ~J - - f T -NEW HAMPSHIRE -r "01163200KH01163100 ATLANTIC OCEAN -i - Base from U.S. Geological Survey digital data, 1.2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' EXPLANATION oii83ioo Ei Streamflow-gaging station and number RHODE ISLAND1 41°30' 0 10 20 30 MILES i___ i ___ i______i 0 10 20 30 KILOMETERS Figure 43. Location of streamflow-gaging stations with significant floods during 1970-89 for Massachusetts. Table 22. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Massachusetts '[mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 43) 01094400 01095200 01096000 01096500 01096910 01097000 01097300 01097452 01098530 01099500 01100000 01100100 01100600 01101000 01101500 01102000 01102500 01104200 01104500 01104600 01105000 01105500 01105550 01105585 Station name North Nashua River at Fitchburg, MA Houghton Brook near Oakdale, MA Squannacook River near West Groton, MA Nashua River at East Pepperell, MA Boulder Brook at East Bolton, MA Assabet River at Maynard, MA Nashoba Brook near Acton, MA Jackstraw Brook at Hopkinton Road, Westborough, MA Sudbury River at Saxonville, MA Concord River below River Meadow Brook at Lowell, MA Merrimack River below Concord River at Lowell, MA Richardson Brook near Lowell, MA Shawsheen River near Wilmington, MA Parker River at Byfield, MA Ipswich River at South Middleton, MA Ipswich River near Ipswich, MA Aberjona River at Winchester, MA Charles River at Wellesley, MA Charles River at Waltham, MA Beaver Brook at Belmont, MA Neponset River at Norwood, MA East Branch Neponset River at Canton, MA Plantingfield Brook at Norwood, MA Town Brook at Quincy, MA Total drainage area (mi2) 63.4 0.69 65.9 435 1.60 116 12.8 1.24 106 400 4,635 4.22 36.5 21.3 44.5 125 24.7 211 251 4.00 34.7 27.2 1.52 4.22 Period of record 1973-94 1964-83 1950-94 1936-94 1972-83 1942-94 1964-94 1964-83 1980-94 1938-94 1852, 1924-94 1963-83 1964-94 1946-94 1938-94 1931-94 1940-94 1960-94 1932-94 1963-83 1938, 1940-94 1953-94 1964-74 1973-86 Water year 1987 1979 1987 1936 1979 1955 1979 1979 1982 1987 1979 1936 1979 1979 1987 1987 1987 1979 1968 1976 1979 1955 1955 1974 1968 1975 Stage (ft) 7.78 9.82 8.16 19.10 3.69 8.94 5.57 9.59 13.30 13.47 9.60 68.40 19.15 9.85 7.35 7.51 9.43 15.46 6.20 6.54 16.20 14.65 8.18 14.83 15.06 7.40 Dis- charge (ft3/s) 3,510 60 4,220 20,900 208 4,250 679 77 2,420 2,240 5,410 173,000 424 1,660 790 1,010 3,550 1,330 2,410 4,150 300 1,490 1,790 185 178 381 Significant floods during 1970-89 Date (month/ day/year) 4/05/87 1/25/79 4/06/87 4/07/87 1/25/79 1/26/79 1/26/79 4/07/87 1/25/79 6/07/82 4/08/87 1/28/79 4/10/87 4/07/87 1/25/79 1/26/79 4/06/87 4/07/87 1/26/79 4/07/87 4/08/87 1/25/79 6/06/82 4/07/87 1/28/79 2/03/76 1/25/79 6/07/82 1/25/79 5/31/84 2/25/75 3/21/74 5/13/75 Stage (ft) 7.78 9.82 8.16 16.19 3.69 8.11 5.57 4.91 9.59 13.30 13.47 9.60 9.60 57.16 19.15 9.85 -- 7.35 7.12 7.51 9.43 15.46 14.12 14.20 6.11 6.54 6.48 5.44 16.20 10.22 3.21 14.83 7.40 Dis- charge (tf/s) 3,510 60 4,220 11,700 208 3,420 679 337 77 2,420 2,240 5,410 5,120 84,700 424 1,660 1,200 790 839 1,010 3,550 1,330 850 877 2,310 4,150 3,480 2,960 300 943 1,790 185 381 Regu- lated during flood1 Y N N Y N Y N Y N Y Y Y Y Y N N Y N Y Y Y Y Y Y Y Y Y Y N Y Y N Y Recur- rence interval (years) 10-25 10-25 10-25 10-25 - 10-25 10-25 2-5 10-25 10-25 10-25 10-25 10-25 10-25 10-25 5-10 25-50 10-25 10-25 25-50 25-50 5-10 10-25 5-10 25-50 10-25 10-25 10-25 10-25 10-25 10-25 2-5 284 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 22. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Massachusetts Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 43) 01105600 01105850 01105880 01109050 01109100 01109270 01109480 01110000 01111200 01123160 01123360 01123600 01124050 01124350 01161300 01162000 01162500 01163100 01163200 01165300 01166500 01168151 01168500 01169000 01169900 Station name Old Swamp River near South Weymouth, MA Furnace Brook near Marshfield, MA Herring River at North Harwich, MA Threemile River tributary near Oakland, MA Taunton River tributary near Fall River, MA Runnins River at Seekonk, MA Kettle Brook diversion weir at Auburn, MA Quinsigamond River at North Grafton, MA West River below West Hill Dam near Uxbridge, MA Wales Brook tributary near Wales, MA Quinebaug River below East Brimfield Dam at Fiskdale, MA Quinebaug River below Westville Dam near Southbridge, MA Tufts Branch at Dudley, MA French River below dam at Hodges Village, MA Millers Brook at Northfield, MA Millers River near Winchendon, MA Priest Brook near Winchendon, MA Wilder Brook near Gardner, MA Otter River at Otter River, MA Lake Rohunta outlet near Athol, MA Millers River at Erving, MA Deerfield River near Rowe, MA Deerfield River at Charlemont, MA North River at Shattuckville, MA South River near Conway, MA Total drainage area (mi2) 4.50 1.56 9.40 0.51 0.23 4.27 31.6 25.6 27.9 0.73 67.4 99.0 1.10 31.2 2.30 81.8 19.4 2.35 34.1 20.3 372 254 361 89.0 24.1 Period of record 1967-94 1964-83 1967-88 1964-74 1964-80, 1982-83 1967-83 1979-83, 1985-86, 1988-90 1940-94 1962-90 1964-83 1936, 1938, 1955, 1973-90 1963-90 1963-83 1962-80, 1982-90 1964, 1966-83 1918-94 1917, 1919-94 1964-74 1965-94 1965-85 1915-94 1975-94 1914-94 1940-94 1967-94 Water year 1984 1968 1977 1983 1967 1974 1969 1983 1978 1979 1955 1984 1979 1970 1955 1977 1980 1973 1978 1975 1938 1938 1973 1979 1984 1938 1984 1984 1976 1938 1987 1987 Stage (ft) 5.02 5.22 10.94 3.71 4.88 7.04 7.25 13.73 7.52 489.45 5.15 4.27 9.44 9.53 .. 6.52 6.83 13.49 3.47 20.12 21.55 9.90 12.19 5.02 7.36 .. 7.63 14.73 14.79 20.17 11.19 10.16 Dis- charge (tf/s) 590 566 101 75 54 32 18 108 157 1,900 820 607 63 52 15,400 1,020 1,850 128 628 680 8,500 3,000 56 948 760 29,000 6,810 20,900 16,400 56,300 14,200 5,750 Significant floods during 1970-89 Date (month/ day/year) 5/31/84 3/23/77 2/12/83 12/18/73 4/10/83 1/26/78 1/25/79 1/26/79 4/07/87 6/06/84 1/25/79 1/30/76 3/23/80 2/03/73 1/28/78 9/26/75 6/01/84 4/01/87 4/01/87 3/23/72 3/07/79 4/05/87 5/31/84 3/07/79 5/29/84 4/04/87 2/20/81 4/05/87 4/04/87 Stage (ft) 5.02 10.94 3.71 7.04 13.73 7.52 489.45 4.59 3.96 4.27 9.44 6.42 6.83 13.49 3.47 20.12 .. -- 6.55 12.18 5.02 4.95 7.36 .. 14.73 16.25 9.83 11.19 10.16 Dis- charge (ft3/s) 590 101 75 32 108 157 1,900 652 488 607 63 1,040 1,850 128 628 680 3,500 4,000 871 56 948 919 760 7,200 20,900 36,200 10,600 14,200 5,750 Regu- lated during flood1 N N Y N N N Y Y Y Y N Y Y N Y N Y Y Y N N N Y Y Y Y N N N Recur- rence interval (years) 5-10 5-10 10-25 10-25 10-25 5-10 10-25 25-50 10-25 10-25 5-10 <2 2-5 5-10 5-10 10-25 10-25 25-50 5-10 5-10 10-25 5-10 10-25 5-10 5-10 10-25 5-10 10-25 10-25 Significant Floods, 1970 Through 1989, Massachusetts 285 Table 22. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Massachusetts Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 43) 01170000 01170100 01170900 01171200 01171500 01171800 01171910 01172003 01172500 01173000 01173040 01173260 01173330 01173500 01173900 01174500 01174600 01174900 01175500 01175600 01176000 01176450 01178230 01180500 01180800 Station name Deerfield River near West Deerfield, MA Green River near Colrain, MA Mill River near South Deerfield, MA Scarboro Brook at Dwight, MA Mill River at Northampton, MA Bassett Brook near Northampton, MA Broad Brook near Holyoke, MA Connecticut River below Holyoke Dam at Holyoke, MA Ware River near Barre, MA Ware River at intake works near Barre, MA Pleasant Brook near Barre, MA Moose Brook near Barre, MA Fish Brook near Gilbertville, MA Ware River at Gibbs Crossing, MA Middle Branch Swift River at North New Salem, MA East Branch Swift River near Hardwick, MA Cadwell Creek near Pelham, MA Cadwell Creek near Belchertown, MA Swift River at West Ware, MA Caruth Brook near Paxton, MA Quaboag River at West Brimfield, MA Roaring Brook near Belchertown, MA Mill Brook at Plainfield, MA Middle Brook Westfield River at Goss Heights, MA Walker Brook near Becket Center, MA Total drainage area (mi2) 557 41.4 6.42 2.90 54.0 5.56 2.27 8,309 55.1 96.3 1.22 4.63 1.20 197 4.77 43.7 0.60 2.55 189 2.27 150 2.74 4.45 52.7 2.94 Period of record 1941-94 1968-94 1963-74 1963-66, 1968-74 1939-94 1963-74 1965-83 1984-94 1947-94 1929-91 1965-74 1963-74 1964-74 1913-94 1964-74 1937-94 1962-94 1962-94 1911-94 1965-83 1913-94 1963-74 1964-76, 1978-83 1911-90 1963-77 Water year 1987 1974 1970 1973 1974 1955 1974 1982 1984 1956 1938 1929 1974 1974 1974 1938 1974 1938 1944 1990 1990 1979 1936 1979 1968 1955 1987 1970 1976 1938 1955 1976 Stage (ft) 17.71 8.20 12.16 12.17 16.23 11.78 6.82 19.84 25.62 6.31 -- 10.52 3.43 15.37 18.20 9.45 15.05 22.49 5.29 7.39 7.42 15.00 10.10 10.20 7.78 12.78 16.79 10.61 11.33 7.57 Dis- charge (tf/s) 61,700 4,560 300 130 148 6,300 102 393 153,000 1,890 14,000 990 123 309 104 22,700 320 6,780 2,300 65 283 271 7,590 203 163 12,800 2,170 185 470 19,900 16,500 499 Significant floods during 1970-89 Date (month/ day/year) 4/05/87 2/21/73 4/03/70 12/21/73 6/06/82 12/21/73 6/06/82 6/01/84 4/13/87 4/14/87 12/21/73 12/21/73 12/21/73 3/06/79 12/21/73 3/07/79 3/06/79 3/06/79 6/01/84 3/06/79 6/02/84 4/03/70 8/01/76 3/26/80 8/10/76 Stage (ft) 17.71 8.20 12.16 16.23 10.98 6.82 19.84 25.62 5.56 - 10.52 3.43 15.37 7.94 9.45 22.38 5.26 7.42 11.58 10.10 7.66 12.78 16.79 5.93 7.57 Dis- charge (ft3/s) 61,700 4,560 300 148 4,790 102 393 153,000 1,630 1,590 123 309 104 5,050 320 2,180 62 271 3,070 203 2,510 185 470 1,670 499 Regu- lated during flood1 Y N N N Y N N Y Y Y N N N Y N N N N Y N N N N Y N Recur- rence interval (years) 25-50 5-10 25-50 10-25 10-25 5-10 25-50 - 10-25 2-5 25-50 25-50 10-25 5-10 25-50 10-25 5-10 5-10 5-10 5-10 5-10 10-25 5-10 <2 5-10 286 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 22. Maximum stage and discharge for period of record" for streamflow-gaging stations having significant floods during 1970-89 in Massachusetts Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 43) 01181000 01183100 01183810 01 184900 01185100 01196990 01197050 01197155 01197300 01197500 01197550 01331400 01332000 01332500 01333000 Station name West Branch Westfield River at Huntington, MA Dickinson Brook tributary at GranviUe, MA Longmeadow Brook at Pondside Road near Longmeadow, MA Haley Pond outlet near Otis, MA Fall River below Otis Reservoir near Otis, MA Windsor Brook tributary at Windsor, MA Churchill Brook at Pittsfield, MA Housatonic River tributary number 2 at Lee, MA Marsh Brook at Lenox, MA Housatonic River near Great Barrington, MA Housatonic River tributary at Risingdale, MA Dry Brook near Adams, MA North Branch Hoosic River at North Adams, MA Hoosic River near Williamstown, MA Green River at Williamstown, MA Total drainage area (mi2) 94.0 0.70 4.40 0.26 16.5 0.30 1.16 0.73 2.12 282 0.67 7.67 40.9 126 42.6 Period of record 1936-94 1964-77, 1979-83 1963-77, 1979-83 1964-74 1970-82 1964-74 1964-74 1965-74 1963-74 1914-94 1963-83 1963-74 1928, 1932-90 1941-94 1949-94 Water year 1955 1938 1975 1974 1982 1974 1972 1974 1974 1973 1974 1973 1974 1949 1974 1974 1928 1976 1949 1974 1949 Stage (ft) 15.27 15.50 14.24 6.13 6.22 12.01 5.41 11.64 12.64 7.72 .. 3.70 12.08 17.14 5.52 12.24 14.85 5.68 7.50 Dis- charge (tf/s) 26,100 21,800 208 118 112 30 422 52 139 69 88 150 20 12,200 47 947 9,980 8,450 13,000 4,060 -- Significant floods during 1970-89 Date (month/ day/year) 3/21/80 9/27/75 12/21/73 12/21/73 7/02/72 12/21/73 12/21/73 12/21/73 2/03/73 5/31/84 12/21/73 12/21/73 8/10/76 8/10/76 12/21/73 6/30/76 Stage (ft) 12.49 14.24 6.13 12.01 5.41 11.64 7.72 10.96 17.14 5.52 12.24 13.02 5.68 5.64 Dis- charge (ft'/s) 17,600 208 118 30 422 52 139 88 150 10,300 47 947 8,450 11,200 4,060 3,980 Regu- lated during flood1 N N N N Y N N N N Y N N N Y N N Recur- rence interval (years) 10-25 5-10 5-10 10-25 5-10 10-25 50-100 10-25 >100 25-50 5-10 25-50 10-25 10-25 10-25 10-25 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Massachusetts 287 Michigan Hydroclimatology Michigan is located in the north-central United States. The State consists of two peninsulas in the Great Lakes Region. The Upper Peninsula is bordered on the south by Lakes Michigan and Huron and on the north by Lake Superior. The Lower Peninsula is bor- dered on the east by Lakes Huron and Erie and on the west by Lake Michigan. The Great Lakes have a sig- nificant effect on the climate of Michigan. The large volume and surface area of the lakes have a moderat- ing effect on the temperature. Michigan has a milder winter and cooler summer when compared to areas to the west at the same latitude. Seventy-five percent of Michigan's moisture origi- nates from the Gulf of Mexico. Polar maritime air- masses from the Pacific and Atlantic Oceans contribute very little moisture to the Michigan area. The Great Lakes are a significant source of moisture, especially during the winter months. Michigan's mean annual precipitation is about 31 in. statewide and ranges from 28 to 36 in. (Paulson and others, 1991). More than one-half of the precipitation occurs during the growing season. Summer precipitation occurs in the form of rain showers or thunderstorms and is caused by convective air circulation. Winter precipita- tion occurs more steadily and is typically the result of frontal systems. Lake-effect snowstorms add signifi- cantly to the total annual precipitation. The Upper Peninsula's annual snowfall is one of the largest east of the Rocky Mountains. Flooding in Michigan is not a common occur- rence. When flooding does occur, however, it typically occurs in late winter or early spring when rain associ- ated with rapid warming causes quick melting of the snowpack. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the factors affecting the magnitude of maximum discharges for streams in the State are the contributing-drainage area; main-channel slope; main- channel swamp, which is the percentage of main- channel length that passes through swamps, lakes, or ponds; slenderness ratio, which is the square of the channel length divided by the contributing-drainage area; the 100-year, 24-hour rainfall; a regional factor; and seven characteristics of surficial geologic material, each measured as a percentage of the contributing- drainage area. The surficial geologic variables are: (1) lacustrine clay and silt; (2) coarse-textured glacial till; (3) end moraines of fine-textured till; (4) medium-tex- tured glacial till and end moraines of fine-textured till; (5) peat and muck; (6) postglacial alluvium or glacial outwash sand and gravel and postglacial alluvium, and ice-contact outwash sand and gravel; and (7) thin to discontinuous glacial till over bedrock (Jennings and others, 1994). Significant Floods The most severe flood on record occurred in Sep- tember 1985. It was caused by a storm system that remained nearly stationary for several days, resulting^ in as much as 13 in. of rain in some areas of the central Lower Peninsula. The flood produced maximum dis- charges for the period of record at eight streamflow- gaging stations. Flooding caused six deaths and an estimated $500 million in damages (Paulson and oth- ers, 1991). A large amount of flooding occurred during 1985. Significant flooding was recorded at two separate times during that year. From April 20 to 24, the Escanaba, Michigamme, Chocolay, and Manistique River Basins in the Upper Peninsula had floods that recorded signficant discharges. In September 1985, a stalled frontal system caused flooding in the Flint River Basin. The flooding was intensified by succes- sive storms following the same path. Snowmelt, in addition to record precipitation, resulted in the flood of April 1975. The southern area of the Lower Peninsula was affected by the flood. Flooding was most severe in Lansing, where an esti- mated $50 million in damages occurred (Paulson and others, 1991). Sixteen percent of the streamflow- gaging stations in the State recorded significant discharges. The location of streamflow-gaging stations in Michigan that had significant floods for 1970-89 is shown in figure 44 by station number. The specific data for each significant flood are listed in table 23. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. 288 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 References Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, 1988-89-Hydrologic events and floods and droughts: Nationwide summary of U.S. Geological Survey n s Geological Survey Water-Supply Paper 2375, regional regression equations for estimating magnitude 591 n and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Significant Floods, 1970 Through 1989, Michigan 289 Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30", central meridian -96°00' EXPLANATION 04045500 H Streamflow-gaging station and number 0 20 40 60 80 MILES i____i_____i_____i____i 0 20 40 60 80 KILOMETERS Figure 44. Location of streamflow-gaging stations with significant floods during 1970-89 for Michigan. 290 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Inset A 43°15' 83°45' 42°30' 30' 15' 82°30' 04148800 LAKE HURON CANADA Base from U.S. Geological Survey digital data, 1:100,000,1994 Universal Transverse Mercator projection Zone 17 Converted to Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 10 15 20 MILES 10 15 20 KILOMETERS EXPLANATION I Streamflow-gaging station and number Figure 44. Location of streamflow-gaging stations with significant floods during 1970-89 for Michigan Continued. Significant Floods, 1970 Through 1989, Michigan 291 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; , not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04001000 04039500 04040000 04040500 04041000 04041500 04043050 04044200 04044400 04044813 04045500 04045538 .04045559 04057000 04057510 04057800 04057900 04058100 04058200 04058300 04058400 04058500 04059000 04059400 04059500 Station name Washington Creek at Windigo, Isle Royale, MI South Branch Ontonagon River at Ewen, MI Ontonagon River near Rockland, MI Sturgeon River near Sidnaw, MI Perch River near Sidnaw, MI Sturgeon River near Alston, MI Trap Rock River near Lake Linden, MI Carp Creek at Ishpeming, MI Carp River near Negaunee, MI Two Hearted River near Paradise, MI Tahquamenon River near Paradise, MI West Branch Waiska River near Brimley, MI East Branch Waiska River near Brimley, MI Indian River near Manistique, MI Sturgeon River near Nahma Junction, MI Middle Branch Escanaba River at Humboldt, MI Black River near Republic, MI Middle Branch Escanaba River near Princeton, MI Schweitzer Creek near Palmer, MI Warner Creek near Palmer, MI Goose Lake outlet near Sands Station, MI East Branch Escanaba River at Gwinn, MI Escanaba River at Cornell, MI Tenmile Creek at Perronville, MI Ford River near Hyde, MI Total drainage area (mi2) 13.2 348 1,340 171 63.1 346 28.0 16.5 51.4 201 790 40.7 31.9 302 183 46.0 34.4 210 23.6 14.2 37.5 124 870 38.4 450 Period of record 1965-94 1939-82, 1986 1942-94 1913-15, 1943-94 1913-15, 1957-91 1932-94 1967-94 1970-91 1962-86 1973-93 1954-94 1973-93 1973-91 1938-82 1967-94 1960-94 1962-68, 1970-91 1962-82, 1985, 1990-94 1961-94 1962-68, 1970-78 1966-86 1955-80, 1985 1906-08, 1911-12, 1951-94 1971-93 1955-94 Water year 1972 1960 1942 1960 1960 1960 1979 1985 1985 1985 1991 1960 1974 1988 1985 1986 1960 1943 1985 1985 1985 1985 1970 1970 1985 1985 1979 1975 1986 1960 Stage (ft) 6.82 22.07 28.60 11.63 11.07 53.09 10.72 11.32 6.83 8.42 12.36 10.26 9.19 9.84 13.86 14.82 7.56 7.79 11.50 9.21 6.32 11.84 6.50 8.95 6.84 15.75 5.00 5.42 5.76 8.27 Dis- charge (tf/s) 480 13,500 42,000 4,630 1,100 7,360 1,590 403 918 3,210 1,720 6,990 1,200 1,140 1,380 740 2,030 1,550 2,120 1,930 1,160 4,200 860 600 710 2,700 10,700 810 800 7,590 Significant floods during 1970-89 Date (month/ day/year) 5/01/72 4/01/86 4/01/86 4/20/85 4/20/85 4/21/85 5/10/79 4/20/85 4/20/85 4/25/85 4/25/85 4/18/74 4/21/85 4/28/79 4/21/85 4/20/85 4/20/85 5/06/72 4/22/85 5/31/70 4/20/85 5/31/70 5/31/70 -/~/85 4/21/85 4/26/79 4/22/85 4/24/75 4/14/71 Stage (ft) 6.82 20.99 20.12 11.07 10.85 11.43 10.72 11.32 6.83 8.42 10.07 9.19 13.86 6.27 11.50 9.21 6.32 7.85 11.84 6.50 6.44 8.95 5.89 15.75 5.00 4.95 5.42 7.09 Dis- charge (tf/s) 480 9,850 26,400 4,570 940 5,950 1,590 403 918 3,210 6,700 1,200 1,380 1,150 2,120 1,930 1,160 2,580 4,200 860 751 600 458 710 2,700 10,700 10,600 810 4,900 Regu- lated during flood1 N N Y N N Y N N Y N N N N N N N N N Y Y Y N N N Y Y Y N N Recur- rence interval (years) 20 20 25 50 25-50 25 50 25-50 100 25 25 25 25 10 50-100 100 100 25-50 >100 50 25 >50 10 >100 50 25 25 25 25 292 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04061500 04062200 04062230 04062300 04065300 04065393 04096272 04096340 04096400 04096515 04096600 04096900 04097060 04097170 04097370 04097500 04097540 04099000 04101500 04101800 04102500 04102700 04105000 04105500 04105700 Station name Paint River at Crystal Falls, MI Peshekee River near Champion, MI Michigamme River near Michigamme, MI Michigamme River at Republic, MI West Branch Sturgeon River near Randville, MI East Branch Sturgeon River below Skunk Creek near Felch, MI Beebe Creek near Hillsdale, MI St. Joseph River at Clarendon, MI St. Joseph River near Burlington, MI South Branch Hog Creek near Alien, MI Coldwater River near Hodunk, MI Nottawa Creek near Athens, MI Little Portage Creek at 38th Street near Fulton, MI Portage River near Vicksburg, MI Flowerfield Creek at Flowerfield, MI St. Joseph River at Three Rivers, MI Prairie River near Nottawa, MI St. Joseph River at Mottville, MI St. Joseph River at Niles, MI Dowagiac River at Sumnerville, MI Paw Paw River at Riverside, MI South Branch Black River near Bangor, MI Battle Creek at Battle Creek, MI Kalamazoo River near Battle Creek, MI Augusta Creek near Augusta, MI Total drainage area (mi2) 597 133 194 240 56.1 61.8 42.4 144 201 48.7 293 162 27.0 68.2 42.6 1,350 106 1,866 3,666 255 390 83.6 241 824 38.9 Period of record 1945-94 1962-82, 1985 1969-82 1962-91 1959-81 1974-84 1975-91 1975-91 1963-91 1970-94 1963-89 1967-94 1965-67, 1972-79 1947-51, 1965-70, 1972-92 1964-79 1950, 1952-83, 1993-94 1963-94 1924-94 1931-94 1961-94 1952-94 1967-94 1931, 1933-93 1938-93 1965-93 Water year I960 1985 1976 1985 1981 1979 1981 1982 1985 1989 1989 1985 1989 1989 1989 1978 1989 1978 1969 1950 1982 1985 1989 1950 1982 1985 1987 1986 1947 1947 1985 1978 Stage (ft) 9.82 10.90 7.77 9.94 6.64 4.28 6.13 7.61 8.02 5.82 6.00 6.20 9.17 7.85 8.82 5.81 2.51 2.58 10.60 10.69 6.30 10.41 13.10 14.97 9.26 10.90 13.63 4.48 7.95 3.41 Dis- charge (tf/s) 10,900 6,100 3,180 5,270 610 628 438 620 618 1,000 1,390 664 646 2,800 2,190 900 416 105 87 8,260 8,180 797 11,400 20,200 19,900 1,590 3,580 1,860 3,640 7,290 5,760 560 Significant floods during 1970-89 Date (month/ day/year) 4/22/85 4/21/85 4/19/76 4/24/85 6/15/81 4/26/79 3/20/82 6/04/89 6/05/89 2/25/85 6/02/89 6/02/89 6/26/78 6/02/89 9/17/78 3/21/82 3/20/82 2/26/85 3/21/82 6/04/89 3/21/82 2/25/85 2/24/85 10/04/86 2/27/85 10/04/86 9/30/86 4/21/75 2/26/85 6/27/78 Stage (ft) 7.95 10.90 7.77 9.94 6.64 4.28 8.02 5.82 6.00 9.17 7.85 8.82 5.81 2.51 10.69 6.12 6.30 9.81 10.41 14.97 14.96 9.26 8.84 10.42 10.90 13.63 4.44 7.95 3.41 Dis- charge (ft3/s) 7,250 6,100 3,180 5,270 610 628 620 1,000 1,390 664 2,800 2,190 900 416 105 8,180 698 797 10,100 11,400 19,900 19,900 1,590 1,460 2,980 3,580 1,860 3,590 5,760 560 Regu- lated during flood1 N N N N N N N N N N N N N N N Y N N Y Y Y Y Y Y N N N N Y N Recur- rence interval (years) 25 100 25 50 50 25 25 25 25 25 50 100 50 50 25-50 >100 25 50 50 100 50 50 50 25 25 100 25 50 25-50 >100 Significant Floods, 1970 Through 1989, Michigan 293 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04105800 04106000 04106180 04106300 04106400 04108500 04108600 04108645 04108800 04111000 04111379 04111500 04112000 04112500 041 12700 04113090 04114000 04114500 04115000 04116500 041 17000 04117500 04118000 04118500 04119055 Station name Gull Creek near Galesburg, MI Kalamazoo River at Comstock, MI Portage Creek at Portage, MI Portage Creek near Kalamazoo, MI West Fork Portage Creek at Kalamazoo, MI Kalamazoo River near Fennville, MI Rabbit River near Hopkins, MI Rabbit River at Hamilton, MI Macatawa River near Zeeland, MI Grand River at Eaton Rapids, MI Red Cedar River near Williamston, MI Deer Creek near Dansville, MI S loan Creek near Williamston, MI Red Cedar River at East Lansing, MI Sycamore Creek near Mason, MI Carrier Creek near Grand Ledge, MI Grand River at Portland, MI Looking Glass River near Eagle, MI Maple River at Maple Rapids, MI Flat River at Smyrna, MI Quaker Brook near Nashville, MI Thornapple River near Hastings, MI Thornapple River near Caledonia, MI Rogue River near Rockford, MI Plaster Creek at Grand Rapids, MI Total drainage area (mi2) 38.1 1,010 16.5 22.4 18.7 1,600 71.4 274 65.8 661 163 16.3 9.34 355 39.5 7.18 1,385 281 434 528 7.60 385 773 234 46.6 Period of record 1965-74 1933-79, 1985-93 1983-93 1965-93 1960-93 1929, 1931-36, 1938-93 1966-94 1979-94 1961-94 1949-82 1975-89 1955-94 1955-94 1903-04, 1911-94 1975-94 1975-94 1953-81, 1989-94 1945-94 1945-94 1951-86, 1993-94 1955-94 1945-94 1931-38, 1952-81, 1984-94 1952-82, 1988-94 1974-94 Water year 1974 1947 1989 1989 1989 1978 1975 1947 1978 1989 1989 1981 1950 1968 1975 1975 1975 1904 1975 1986 1975 1947 1982 1986 1986 1975 1947 1985 1976 1979 1991 Stage (ft) 3.82 7.94 9.37 3.87 3.09 4.49 3.32 14.30 9.57 18.20 15.81 8.15 8.19 10.41 12.18 9.99 13.40 12.53 10.01 12.98 7.70 8.43 12.33 9.05 9.45 10.20 11.43 9.29 11.99 Dis- charge (tf/s) 142 6,910 4,910 118 407 290 41 17,500 9,030 1,860 5,260 7,220 3,860 3,220 2,670 962 1,290 8,000 1,080 465 12,400 2,860 2,000 8,770 4,700 470 6,810 6,700 3,540 1,700 1,550 Significant floods during 1970-89 Date (month/ day/year) 2/22/74 2/28/85 5/31/89 5/30/89 4/19/75 6/27/78 3/20/82 5/31/89 6/01/89 5/11/81 7/17/82 2/21/71 4/19/75 4/19/75 4/18/75 4/20/75 4/19/75 6/12/86 4/21/75 3/04/79 9/12/86 9/13/86 4/19/75 4/21/75 2/27/85 2/27/85 3/06/76 3/04/79 Stage (ft) 3.82 7.91 3.87 3.09 3.32 14.30 13.43 9.57 18.20 15.81 14.37 7.52 10.41 12.18 9.99 11.95 12.53 10.01 12.98 6.84 12.33 9.05 9.45 9.72 9.80 11.43 9.29 -- Dis- charge (tf/s) 142 6,410 118 407 41 9,030 7,970 1,860 5,260 7,220 4,600 3,500 2,670 962 1,290 5,940 1,080 465 12,400 2,240 8,770 4,700 470 5,040 5,140 6,700 3,540 1,700 Regu- lated during flood1 N Y N N N Y Y N N N N N N N N N N N N N N N N N N Y N N Recur- rence interval (years) 10-25 50 50-100 >100 100 25 10-15 100 50 50-100 10-15 10-15 50-100 100 100 >100 25 25-50 100 25 100 >100 100 25 25 25-50 100 25-50 294 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04119160 04120295 04121300 04121500 04121900 04122000 04122100 04122200 04122223 04122230 04122500 04124000 04124500 04125500 04126000 04126200 04126600 04127000 04127800 04127850 04127918 04128000 04128500 04130000 04131500 Station name Buck Creek at Grandville, MI Black Creek near Muskegon, MI Clam River at Vogel Center, MI Muskegon River at Evart, MI Little Muskegon River near Morley, MI Muskegon River at Newaygo, MI Bear Creek near Muskegon, MI White River near Whitehall, MI Pentwater River near Hart, MI North Branch Pentwater River near Pentwater, MI Pere Marquette River at Scottville, MI Manistee River near Sherman, MI East Branch Pine River near Tustin, MI Pine River near Hoxeyville, MI Manistee River near Manistee, MI Little Manistee River near Freesoil, MI Betsie River near Benzonia, MI Boardman River near Mayfield, MI Jordan River near East Jordan, MI Boyne River near Boyne City, MI Pine River near Rudyard, MI Sturgeon River near Wolverine, MI Indian River (Burt Lake) at Indian River, MI Cheboygan River (Mullett Lake) near Cheboygan, MI Rainy River near Ocqueoc, MI Total drainage area (mi2) 50.5 39.0 243 1,433 121 2,350 14.8 406 78.0 44.0 681 857 60.0 251 1,677 200 170 186 67.9 65 184 192 583 865 87.9 Period of record 1974-94 1975,1977, 1979-89, 1991 1967-94 1931, 1934-94 1967-94 1910-15, 1917,1919, 1931-93 1966-94 1958-94 1975-84 1975-94 1940-94 1904-16, 1931, 1934-94 1953-65, 1968-76, 1978-90, 1992-94 1953-82 1952-93 1957-82 1975-94 1953-89 1967-94 1975-76, 1978-91 1973-94 1943-94 1942-82 1943-82 1953-82 Water year 1981 1986 1989 1989 1986 1986 1945 1976 1980 1975 1984 1986 1986 1913 1990 1956 1956 1987 1975 1976 1989 1961 1975 1975 1990 1986 1972 1961 1979 1943 1979 1952 1960 Stage (ft) 10.30 4.47 7.31 14.99 8.57 19.54 53.76 11.00 16.29 7.46 5.03 6.33 8.07 15.99 6.23 6.82 8.44 8.70 3.88 5.46 6.90 6.51 3.93 4.66 18.44 3.72 4.48 5.65 - 2.68 6.33 Dis- charge (ft3/s) 1,580 656 1,710 9,040 2,300 23,200 11,600 930 468 5,400 528 2,680 6,440 3,570 3,100 1,410 2,440 7,280 5,810 595 993 1,220 1,360 662 590 4,500 1,290 1,180 1,250 1,010 1,970 1,550 946 Significant floods during 1970-89 Date (month/ day/year) 5/12/81 9/12/86 3/29/89 3/29/76 3/31/89 9/12/86 9/12/86 3/05/76 9/01/75 9/13/86 5/26/84 9/11/86 9/13/86 3/30/89 3/29/76 4/13/71 4/14/71 3/30/76 10/05/86 3/30/76 3/28/89 8/16/87 7/19/75 7/19/75 3/30/86 9/29/72 5/07/72 5/03/79 5/22/79 3/27/76 Stage (ft) 10.30 4.47 7.31 14.07 14.99 8.57 19.54 11.00 7.46 7.33 5.03 6.33 8.07 5.92 15.72 - 6.60 8.37 8.44 3.88 5.46 6.70 6.51 3.93 18.44 3.72 -- - 5.96 Dis- charge (frVs) 1,580 656 1,710 7,790 9,040 2,300 23,200 930 5,400 4,990 528 2,680 6,440 3,110 3,430 1,000 1,970 7,120 7,280 595 993 1,100 1,360 662 4,500 1,290 1,220 1,250 1,970 748 Regu- lated during flood1 N N N N N N Y N N N Y N N N N N N Y Y N N Y N N N N Y Y Y N Recur- rence interval (years) 50 - 100 25 100 100 >100 >100 50-100 50 25-50 >100 >100 10-20 50 25 25 10-25 10-25 25 25 25 50-100 25 25 50-100 25 25 100 25 Significant Floods, 1970 Through 1989, Michigan 295 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04132000 04133500 04134000 04135000 04135600 04135700 04136500 04138500 04140200 04140500 04141000 04141100 04142000 04143500 04143900 04144000 04144180 04144200 04144220 04144500 04145000 04146000 04146020 04146063 04147500 Station name Black River near Cheboygan, MI Thunder Bay River near Bolton, MI North Branch Thunder Bay River near Bolton, MI Thunder Bay River near Alpena, MI East Branch Au Sable River at Grayling, MI South Branch Au Sable River near Luzerne, MI Au Sable River at Mio, MI Au Ores River near National City, MI Klacking Creek near Selkirk, MI Rifle River at Selkirk, MI South Branch Shepards Creek near Selkirk, MI Shepards Creek near Selkirk, MI Rifle River near Sterling, MI North Branch Kawkawlin River near Kawkawlin, MI Shiawassee River at Linden, MI Shiawassee River at Byron, MI Jones Creek near Gaines, MI Porter Drain near Gaines, MI Jones Creek at Duffield, MI Shiawassee River at Owosso, MI Shiawassee River near Fergus, MI Farmers Creek near Lapeer, MI South Branch Flint River near Millville, MI South Branch Flint River near Columbiaville, MI Flint River near Otisville, MI Total drainage area (mi2) 597 588 184 1,238 76.0 401 1,361 169 7.51 117 1.15 4.44 320 101 83.7 368 7.60 4.68 23.4 538 637 55.3 160 221 530 Period of record 1943-76, 1978 1946-80 1946-80 1902-08, 1980-90 1958-84 1967-89, 1991-94 1953-94 1951-81 1953-63, 1965-91 1951-94 1952-87 1953-63, 1965-78, 1988-89 1937-94 1951-82 1968-94 1948-83 1970-83 1970-83 1970-83 1931-94 1940-84, 1989-94 1933-94 1974-91 1980-94 1953-89, 1991-94 Water year 1976 1976 1976 1950 1986 1902 1976 1976 1986 1976 1974 1959 1959 1956 1973 1989 1950 1974 1975 1975 1982 1975 1982 1982 1947 1947 1973 1985 1985 1985 1960 Stage (ft) 4.50 10.29 7.46 7.98 - -- 5.24 7.30 6.16 8.64 10.64 6.59 6.76 4.42 4.88 5.00 13.74 10.92 7.43 15.25 8.86 9.04 6.73 10.30 10.35 12.50 14.89 20.95 10.33 9.60 14.97 Dis- charge (ftVs) 2,700 4,290 2,950 1,300 12,100 3,800 207 1,120 4,380 2,720 2,500 738 2,760 181 838 240 5,340 1,610 476 3,880 266 190 186 630 6,240 7,500 5,300 1,380 2,510 3,090 6,150 Significant floods during 1970-89 Date (month/ day/year) 4/24/72 3/30/76 3/26/76 3/28/76 3/28/86 3/28/76 3/28/76 3/28/76 9/30/86 3/06/74 3/21/76 3/20/76 3/27/89 9/30/86 5/28/73 3/28/89 5/18/74 4/22/75 4/22/75 10/01/81 10/01/81 10/01/81 10/01/81 10/02/81 9/09/85 9/09/85 9/09/85 4/07/85 Stage (ft) - 4.50 10.29 7.46 - 5.24 7.30 6.14 6.16 10.64 8.64 2.93 5.17 4.29 4.88 11.39 10.92 7.43 15.25 8.86 6.73 10.30 10.25 14.84 20.95 10.33 9.60 14.80 Dis- charge (ftVs) 2,700 2,700 4,290 2,950 12,100 207 1,120 4,170 4,380 2,500 2,720 175 2,160 166 838 4,010 1,610 476 3,880 266 186 630 5,460 7,340 1,380 2,510 3,090 5,850 Regu- lated during flood1 N N Y N Y N Y Y Y N N N N N N N N Y N N N N N N N N N Y Recur- rence interval (years) 25 25 25 25 25 50-100 50-100 50-100 50-100 25 25 10 50 25 50 25 25 50 50-100 25-50 25-50 25 25-50 25 50-100 50 25-50 25 04147800 Powers Cullen Drain near Genesee, MI 9.17 1970-83 1982 6.42 775 6/28/82 6.42 775 50 296 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04147900 04147990 04148120 04148139 04148140 04148144 04148160 04148200 04148255 04148260 04148265 04148270 04148300 04148410 04148440 04148500 04148610 04148620 04148640 04148720 04148740 04148800 04148900 04149300 04150000 04150500 Station name Lefler-Scothan Drain near Otisville, MI Butternut Creek near Genesee, MI Kearsley Creek near Atlas, MI Black Creek near Davison, MI Kearsley Creek near Davison, MI Chipmunk Creek near Genesee, MI Gilkey Creek near Flint, MI Swartz Creek near Holly, MI Swartz Creek near Grand Blanc, MI Swartz Creek near Swartz Creek, MI Kimball Drain near Swartz Creek, MI West Branch Swartz Creek near Swartz Creek, MI Swartz Creek at Flint, MI Thread Creek near Goodrich, MI Thread Creek near Flint, MI Flint River near Flint, MI Cole Creek near Flushing, MI Freeman Drain near Mont- rose, MI Armstrong Creek near Montrose, MI Brent Run near Montrose, MI Central Stadler Drain near Montrose, MI Pine Run near Montrose, MI Silver Creek near Clio, MI Misteguay Creek near Flushing, MI South Branch Cass River near Cass City, MI Cass River at Cass City, MI Total drainage area (mi2) 4.90 34.7 55.6 22.8 99.4 5.49 6.43 12.1 36.0 67.3 10.6 40.6 115 28.8 54.4 956 8.51 8.21 11.9 20.8 15.0 28.2 3.70 17.3 238 359 Period of record 1970-83 1970-83 1970-83 1970-83 1966-94 1970-83 1970-83 1956-84 1970-83 1970-83 1970-88 1970-83 1970-83, 1991-94 1970-83 1970-83, 1991-94 1933-92, 1994 1970-88 1970-83 1970-88 1970-83 1970-83 1970-83 1970-83 1970-83 1949-80 1948-94 Water year 1981 1982 1976 1975 1975 1982 1985 1982 1982 1975 1975 1975 1982 1975 1975 1975 1975 1975 1947 1985 1985 1982 1982 1982 1985 1982 1975 1979 1973 1982 1976 1971 1982 1967 1986 Stage (ft) 7.40 9.00 9.46 7.91 7.50 8.39 11.85 6.61 8.93 4.81 5.65 11.09 9.08 9.21 11.03 9.02 7.75 7.65 16.35 16.95 7.82 7.83 7.28 7.15 10.10 6.63 6.11 7.12 9.55 9.79 4.08 4.19 11.74 14.86 19.82 Dis- charge (tf/s) 193 1,800 772 1,250 460 427 1,500 506 393 177 210 1,600 465 300 1,770 3,160 355 1,260 14,900 11,400 755 362 400 357 -- 735 340 160 730 723 123 85 1,640 6,400 12,500 Significant floods during 1970-89 Date (month/ day/year) 9/04/81 10/01/81 4/20/75 4/20/75 9/09/85 6/28/82 10/01/81 4/19/75 4/19/75 4/19/75 10/01/81 4/19/75 4/19/75 4/19/75 4/19/75 9/06/85 9/06/85 10/01/81 10/01/81 10/01/81 4/19/75 2/31/72 3/03/76 10/01/81 3/06/76 4/06/85 9/12/86 Stage (ft) 7.40 9.00 7.91 7.50 11.85 6.61 8.93 4.81 5.65 11.09 9.08 11.03 9.02 7.75 7.65 16.95 7.82 7.28 7.15 6.63 6.11 9.55 4.08 11.74 13.90 15.61 19.82 Dis- charge (ftVs) 193 1,800 1,250 460 1,500 506 393 177 210 1,600 465 1,770 3,160 355 1,260 11,400 755 400 357 735 340 730 123 1,640 5,630 8,650 12,500 Regu- lated during flood1 N N N N N N N N N N N N N N N Y N N N N N N N N N N N Recur- rence interval (years) 25 10-25 50 10-25 50 25 25 50-100 25 25 25 25 25 25 25 25-50 100 25 25 10-25 10-25 10 25 25 25 25 100 Significant Floods, 1970 Through 1989, Michigan 297 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04150800 04151000 04151500 04153500 04154000 04155500 04156000 04159900 04160350 04160570 04160600 04160800 04160900 04161000 04161100 04161500 04161580 04161760 04161800 04162900 04164000 04164010 04164050 04164100 04164150 04164200 04164300 Station name Cass River at Wahjamega, MI Cass River at Vassar, MI Cass River at Frankenmuth, MI Salt River near North Bradley, MI Chippewa River near Mount Pleasant, MI Pine River near Midland, MI Tittabawassee River at Midland, MI Mill Creek near Avoca, MI Pine River at U.S. Highway 25 near Rattle Run, MI North Branch Belle River at Imlay City, MI Belle River at Memphis, MI Sashabaw Creek near Drayton Plains, MI Clinton River near Drayton Plains, MI Clinton River at Auburn Heights, MI Galloway Creek near Auburn Heights, MI Paint Creek near Lake Orion, MI Stony Creek near Romeo, MI West Branch Stony Creek near Washington, MI Stony Creek near Washington, MI Big Beaver Creek near Warren, MI Clinton River near Fraser, MI North Branch Clinton River at Almont, MI North Branch Clinton River near Romeo, MI East Pond Creek at Romeo, MI North Branch Clinton River near Meade, MI Coon Creek near Armada, MI East Branch Coon Creek Total drainage area (mi2) 645 710 841 138 416 390 2,400 169 135 18.0 151 20.9 79.2 123 17.9 38.5 25.6 22.5 68.2 23.5 444 9.56 49.7 21.8 89.6 10.0 13.0 Period of record 1969-94 1948-82 1908,1936, 1940-94 1935-82 1931, 1933-94 1935-38, 1948-94 1876, 1907, 1910-94 1964-79, 1988-94 1974-94 1966-94 1963-94 1960-94 1960-94 1936-40, 1957-91 1960-91 1956-91 1965-94 1967-94 1959-94 1954-88 1947-94 1959-94 1959-94 1959-94 1959-94 1959-94 1959-94 Water year 1986 1948 1986 1974 1986 1986 1968 1986 1975 1975 1986 1975 1975 1982 1974 1981 1985 1968 1975 1975 1975 1985 1988 1959 1968 1947 1985 1975 1975 1968 1965 1962 1975 1962 1975 1985 1975 Stage (ft) 26.66 20.8 27.52 18.30 15.58 11.74 12.08 33.89 8.87 23.87 6.66 9.33 8.96 4.53 4.95 5.41 5.62 6.27 4.26 5.19 4.42 4.72 6.44 6.71 14.45 20.00 8.60 8.62 5.44 6.03 4.48 4.56 7.76 7.85 6.25 6.95 6.69 Dis- charge (frVs) 20,000 18,000 22,200 8,500 6,660 9,360 2,900 38,700 4,570 5,400 354 334 4,520 181 276 1,780 536 368 428 290 470 220 552 400 1,240 9,000 818 691 3,500 2,630 358 105 4,500 1,600 480 422 910 Significant floods during 1970-89 Date (month/ day/year) 9/12/86 3/06/76 9/12/86 5/17/74 9/12/86 9/12/86 9/13/86 4/19/75 4/19/75 6/12/86 4/19/75 2/23/74 10/01/81 3/12/74 3/07/76 9/30/81 8/24/85 8/24/85 6/21/89 3/05/76 4/19/75 3/05/74 4/19/75 4/19/75 6/10/88 10/01/81 10/01/81 4/19/75 9/06/85 4/19/75 7/25/87 4/19/75 4/19/75 4/19/75 Stage (ft) 26.66 17.70 27.52 18.30 15.58 11.74 33.89 8.87 23.87 6.66 8.96 4.38 4.53 4.95 4.65 5.41 5.38 5.62 5.33 3.59 4.26 - 5.19 4.42 6.44 12.05 19.56 8.62 8.60 5.44 4.26 7.76 6.25 6.69 Dis- charge (frVs) 20,000 11,900 22,200 8,500 6,660 9,360 38,700 4,570 5,400 354 4,520 161 181 276 221 1,780 1,730 536 390 253 428 246 290 470 552 772 8,840 691 818 3,500 327 4,500 480 910 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N Y Y N N N Y N N N N N N N N N Recur- rence interval (years) 100 10-25 100 25-50 >100 >100 50 25 50 50 50 25-50 25-50 100 25 10-25 10-25 50 25 5-10 25 25 50 50 100 10 50 50 100 100 25 50 25 50-100 at Armada, MI 298 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 23. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Michigan Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 44) 04164350 04164360 04164400 04164450 04164500 04164600 04166000 04166100 04166200 04166300 04166500 04167000 04168800 04170000 04173000 04173250 04174500 04174800 04175340 04175600 04175960 04176000 04176500 Station name Highbank Creek near Armada, MI East Branch Coon Creek at 29-Mile Road near New Haven, MI Deer Creek near Meade, MI McBride Drain near Macomb, MI North Branch Clinton River near Mount Clemens, MI Middle Branch Clinton River at Schoenherr Road near Macomb, MI River Rouge at Birmingham, MI River Rouge at Southfield, MI Evans Ditch at Southfield, MI Upper River Rouge at Farmington, MI River Rouge at Detroit, MI Middle River Rouge near Garden City, MI Huron River near Andersonville, MI Huron River at Milford, MI Huron River near Dexter, MI Mill Creek near Lima Center, MI Huron River at Ann Arbor, MI Huron River at Ypsilanti, MI Stony Creek at Oakville, MI River Raisin near Manchester, MI South Branch River Raisin near Adrian, MI River Raisin near Adrian, MI River Raisin near Monroe, MI Total drainage area (mi2) 14.9 36.1 12.7 5.79 199 22.2 33.3 87.9 9.49 17.5 187 99.9 14.0 132 522 47.3 729 807 68.0 132 165 463 1,042 Period of record 1959-94 1959-94 1959-94 1960-94 1948-94 1959-69, 1971-94 1951-94 1959-94 1959-94 1959-94 1931-94 1931-33, 1948-94 1974-92 1949-94 1946-79 1973-92 1902,1904, 1906-47, 1949-94 1975-84, 1990-94 1970-81 1970-81, 1985-94 1979-91 1931, 1933-38, 1954-94 1938-94 Water year 1985 1975 1985 1985 1965 1968 1968 1968 1968 1968 1982 1968 1947 1968 1968 1948 1975 1982 1968 1947 1983 1982 1918 1968 1983 1981 1985 1985 1982 1982 Stage (ft) 16.77 8.95 9.48 8.90 8.82 9.55 18.62 12.17 8.70 19.04 15.03 8.70 .. 21.40 9.96 10.50 3.17 7.87 8.26 8.17 10.24 10.72 17.50 12.64 8.25 7.21 11.96 15.77 10.40 Dis- charge (tf/s) 2,240 2,700 2,600 691 220 180 6,700 1,400 1,390 4,900 1,200 1,500 13,000 7,300 2,330 2,150 120 648 567 3,120 669 640 5,840 4,610 4,500 865 869 3,460 6,660 15,300 Significant floods during 1 970-89 Date (month/ day/year) 4/19/75 9/06/85 4/19/75 9/06/85 9/06/85 2/24/85 4/20/75 4/19/75 10/01/81 10/01/81 10/01/81 6/21/89 10/01/81 4/14/79 4/19/75 10/03/81 3/05/76 5/02/83 3/09/74 5/02/83 2/19/81 2/24/85 2/25/85 3/15/82 2/25/85 9/06/81 3/16/82 2/26/85 Stage (ft) 15.88 16.77 8.95 9.48 8.90 9.07 18.48 11.80 7.26 18.20 15.03 7.10 21.08 9.71 3.17 7.87 - 10.24 16.74 12.64 8.25 7.21 11.96 15.77 15.62 10.22 10.40 10.06 Dis- charge (tf/s) 1,890 2,240 2,700 2,600 691 212 6,500 1,220 1,050 4,400 1,200 885 6,830 1,970 120 648 2,500 669 4,650 4,500 865 869 3,460 6,660 5,610 14,500 15,300 13,100 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N Y Y N N N N N N N N Recur- rence interval (years) 25 25-50 50 50 25 50 25-50 25-50 50-100 100 100 25 25-50 10-25 50 50 25 10-25 25 10 10 100 50-100 50-100 25-50 25-50 50 25 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Michigan 299 Minnesota Hydroclimatology Minnesota is located in the north-central United States. During the summer, the climate is controlled either by dry, tropical continental airmasses from the desert Southwest or by warm, moist, tropical maritime airmasses from the Gulf of Mexico. Winter is domi- nated by cold, dry, polar continental airmasses that originate over northwestern Canada. The Gulf of Mex- ico provides the majority of moisture for Minnesota. The Pacific Ocean provides a small amount. Precipita- tion usually occurs in mature cyclonic systems that can draw moisture from the Gulf of Mexico. Late spring and summer cold fronts can spawn severe thun- derstorms and associated intense rainfall from June through August when Minnesota receives 45 percent of its precipitation. Mean annual rainfall ranges from 20 in. in the northwest to approximately 31 in. in the southeast (Paulson and others, 1991). Floods in Minnesota typically are a result of melt- ing of a large snowpack in combination with precipita- tion. Summer floods are usually a result of intense thunderstorms. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the factors affecting the magnitude of maximum discharges for streams in Minnesota are drainage area; storage, which includes all lakes, ponds, and wetlands in the basin and is expressed as a percentage of the contributing-drainage area; mean annual runoff; and main-channel slope (Jennings and others, 1994). Significant Floods Three significant floods took place during the spring and summer of 1979. The flood that occurred from April 10 to May 31 was the most severe of the year. The Red River of the North and its tributaries were flooded by a rapidly melting, thick snowpack. Flood maximum discharges were the largest of record in several areas. Flooding in June 1979 occurred locally in the area between St. Cloud and Paynesville. The flood was a result of intense rainfall that lasted 2 hours. The flood of August 1979, a result of intense thunderstorms, affected the Des Moines and Blue Earth River Basins in south-central Minnesota. The flood during the summer of 1978 was a result of a series of intense thunderstorms. The area of great- est rainfall was centered over the headwaters of the South Fork Zumbro and Cedar Rivers. A quarter of Rochester was inundated. Discharges twice the 100- year recurrence interval were recorded on the South Fork Zumbro River at Rochester (station 05372995, table 24). In July 1972, flooding affected central Minnesota from Little Falls to the eastern border of the State. The storm that caused the flood produced the largest 24-hour rainfall recorded in Minnesota. Excessive rainfall occurred on September 20, 1972, producing a flash flood in Duluth. The location of streamflow-gaging stations in Minnesota that had significant floods for 1970-89 is shown in figure 45 by station number. The specific data for each significant flood are listed in table 24. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 300 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 y4»^X^^^^^Rr-/' /^ "^ W«fl flgiaW^ ,?,fo532040T --XJ3 VJ)S318100r ^vn__ "^T^- _'^_L^ri IOWA Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' 60 MILES 0 20 40 60 KILOMETERS EXPLANATION 05318100 E3 Streamflow-gaging station and number Figure 45. Location of streamflow-gaging stations with significant floods during 1970-89 for Minnesota. Significant Floods, 1970 Through 1989, Minnesota 301 Table 24. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Minnesota [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1995 Station number (fig. 45) 04010500 04011390 04012500 04013100 04013200 04014500 04015150 04015200 04015250 04015300 04015330 04015360 04015370 04015400 04015475 04016000 04016500 04017700 04018750 04018900 04019300 04020480 Station name Pigeon River at Middle Falls near Grand Portage, MN Little Devil Track River tributary near Grand Marais, MN Poplar River at Lutsen, MN Lake Superior tributary near Taconite Harbor, MN Caribou River near Little Marais, MN Baptism River near Beaver Bay, MN Crow Creek near Silver Creek, MN Encampment River tributary at Silver Creek, MN Silver Creek tributary near Two Harbors, MN Little Stewart River near Two Harbors, MN Knife River near Two Harbors, MN Lake Superior tributary number 2 at French River, MN Talmadge River at Duluth, MN Miller Creek at Duluth, MN Partridge River above Colby Lake at Hoyt Lakes, MN Partridge River near Aurora, MN St. Louis River near Aurora, MN McKinley Lake tributary at McKinley, MN St. Louis River at Forbes, MN East Two River near Iron Junction, MN West Swan River near Silica, MN North Branch Whiteface River near Fairbanks, MN Total drainage area (mi2) 600 0.47 114 1.58 22.6 137 1.04 0.96 3.62 4.96 83.6 1.44 5.86 4.91 106 159 293 0.37 713 40.9 16.3 17.1 Period of record 1924-28, 1930-95 1966-80, 1982 1913-17, 1930-32, 1934-47, 1953-61, 1976-87 1964-81 1961-85 1930-47, 1949-93 1960-75 1960-90 1965-95 1960-95 1975-95 1964-81 1964-95 1960-85 1979-88 1943-82 1943-93 1960-81 1964-89 1967-79 1964-79 1979-95 Water year 1934 1977 1977 1977 1972 1977 1977 1977 1993 1972 1968 1972 1972 1979 1972 1979 1979 1979 1950 1950 1978 1979 1974 1974 1979 Stage (ft) 12.37 16.75 8.09 14.05 14.60 27.00 8.33 11.38 11.34 11.49 17.08 15.18 11.16 31.58 21.76 19.95 10.89 7.86 8.37 11.90 17.71 10.01 5.68 13.67 Dis- charge (ft3/s) 11,000 10,500 77 4,780 600 416 4,430 10,000 3,930 196 245 1,880 598 7,440 748 1,180 525 2,020 3,230 5,380 41 6,200 640 573 660 Significant floods during 1970-89 Date (month/ day/year) 9/24/77 9/24/77 9/25/77 8/21/72 9/24/77 9/24/77 9/20/72 9/20/72 9/20/72 9/20/72 5/10/79 5/10/79 9/20/72 9/20/72 5/09/79 5/09/79 4/22/79 4/24/79 4/21/71 4/24/79 7/18/78 4/25/79 10/12/73 10/10/73 4/23/79 Stage (ft) 12.37 16.75 8.09 14.05 27.00 8.33 11.34 11.49 17.08 15.18 14.34 11.16 31.58 20.54 21.76 19.95 10.89 6.78 5.31 6.06 11.90 17.71 10.01 5.68 13.67 Dis- charge (ft3/s) 10,500 77 4,780 600 4,430 10,000 196 225 1,880 598 500 7,440 748 1,020 1,180 525 2,020 2,090 2,370 3,170 41 6,200 640 573 660 Regu- lated during flood1 N N N N N N N N N N N N N N N N N Y Y Y N Y N N N Recur- rence interval (years) 50 25-50 >100 25-50 >100 75-85 25-50 50-60 50-100 50-100 40-50 40-60 15-30 35^5 50-100 15-25 >50 10 5 20 15-20 50-100 10-25 5 25-50 302 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 24. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Minnesota Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 45) 04020700 04021205 04024000 04024095 04024098 04024100 04024110 04024200 05040500 05046000 05049000 05050700 05060800 05061000 05061200 05061400 05061500 05062000 05062280 05062470 05062500 05062700 05062800 05063500 05064000 Station name Bug Creek at Shaw, MN Floodwood River above Floodwood, MN St. Louis River at Scanlon, MN Nemadji River near Holyoke, MN Deer Creek near Holyoke, MN Rock Creek near Blackhoof, MN Rock Creek tributary near Blackhoof, MN South Fork Nemadji River near Holyoke, MN Pelican River near Fergus Falls, MN Otter Tail River below Orwell Dam near Fergus Falls, MN Mustinka River above Wheaton, MN Rabbit River near Nashua, MN Buffalo River near Callaway, MN Buffalo River near Hawley, MN Whisky Creek at Barnesville, MN Spring Creek above Downer, MN South Branch Buffalo River at Sabin, MN Buffalo River near Dilworth, MN Mosquito Creek near Bagley, MN Marsh Creek tributary near Mahnomen, MN Wild Rice River at Twin Valley, MN Wild Rice River tributary near Twin Valley, MN Coon Creek near Twin Valley, MN South Branch Wild Rice River near Borup, MN Wild Rice River at Hendrum, MN Total drainage area (mi2) 24.8 198 3,430 127 7.7 4.85 0.49 19.9 486 1,740 810 99.2 76.4 325 76.3 7.93 305 975 4.0 13.0 934 4.75 50.1 254 1,560 Period of record 1979-95 1972-87 1908-95 1972-95 1977-95 1961-65, 1967-87 1961-86 1961-85 1910-12, 1943-47, 1949-80 1931-95 1916-17, 1919-24, 1931-58, 1985-95 1979-95 1960-95 1921, 1945-95 1961-95 1961-95 1945-95 1931-95 1961-85 1961-85 1909-17, 1931-95 1961-85 1962-84 1944-49, 1972-84 1944-95 Water year 1979 1979 1950 1979 1985 1985 1985 1985 1970 1983 1943 1967 1953 1952 1989 1986 1989 1993 1921 1985 1966 1975 1986 1975 1975 1979 1966 1979 1978 1909 1989 1970 1966 1975 1975 1978 1979 Stage (ft) 15.12 22.87 - 13.93 17.38 32.76 38.95 24.32 17.99 18.52 5.53 6.99 5.60 .. 20.01 14.27 15.08 24.90 11.30 7.12 8.25 13.52 13.78 19.90 27.10 10.53 11.37 14.00 16.07 13.65 14.76 15.70 14.59 20.59 31.42 32.30 Dis- charge (ft3/s) 590 2,300 37,900 34,200 4,420 2,000 2,350 115 2,100 1,950 756 655 1,710 7,320 5,400 1,280 760 1,630 3,000 660 260 1,460 839 8,500 13,600 90 60 460 375 9,200 5,260 324 91 2,700 3,700 9,350 8,800 Significant floods during 1970-89 Date (month/ day/year) 4/23/79 4/23/79 10/13/73 4/23/79 9/03/85 9/03/85 9/03/85 9/02/85 5/21/70 4/12/74 5/27/86 3/29/86 9/21/86 5/12/85 7/01/75 6/29/75 5/31/85 6/29/75 7/02/75 7/02/75 4/20/79 4/19/79 4/07/78 4/18/79 4/05/89 6/16/70 6/29/75 7/01/75 4/10/78 4/21/79 Stage (ft) 15.12 22.87 12.76 13.93 17.38 32.76 38.95 24.32 17.99 6.08 4.75 18.91 14.27 17.13 9.76 6.97 7.12 13.52 19.90 27.10 10.53 14.00 13.64 12.93 13.65 14.76 14.59 20.59 31.42 32.30 Dis- charge (ft^s) 590 2,300 28,900 34,200 4,420 2,000 2,350 115 2,100 725 1,600 5,500 1,280 635 2,050 610 660 1,460 8,500 13,600 90 460 6,470 6,010 5,260 324 2,700 3,700 9,350 8,800 Regu- lated during flood1 N N Y Y N N N N N N Y N N N N N N N N N N N N N N N N N Y Y Recur- rence interval (years) 25-50 10-25 15 40-45 45-55 25-50 50-100 50-100 20 20 25 20 5-15 10 20 35^5 50-60 >100 50-100 >100 15 20-30 40-50 30-40 20-30 20-30 20 25-50 50-75 50-60 Significant Floods, 1970 Through 1989, Minnesota 303 Table 24. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Minnesota Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 45) 05067500 05073600 05073750 05073800 05075000 05075700 05078000 05078180 05078200 05078230 05078400 05078500 05079000 05086900 05087500 05094000 05102500 05104500 05124480 05124500 05124990 05125550 05126000 05127000 05127205 Station name Marsh River near Shelly, MN South Branch Battle River at Northome, MN Spring Creek near Blackduck, MN Perry Creek near Shocks, MN Red Lake River at High Landing near Goodridge, MN Mud River near Grygla, MN Clearwater River at Plummer, MN Silver Creek near Clearbrook, MN Silver Creek tributary at Clearbrook, MN Lost River at Oklee, MN Clearwater River tributary near Plummer, MN Clearwater River at Red Lake Falls, MN Red Lake River at Crookston, MN Middle River near Newfolden, MN Middle River at Argyle, MN South Branch Two Rivers at Lake Bronson, MN Red River of the North at Emerson, MN Roseau River below South Fork near Making, MN Kawishiwi River near Ely, MN Isabella River near Isabella, MN Filson Creek near Ely, MN Stony River near Babbitt, MN Dunka River near Babbitt, MN Kawishiwi River near Winton, MN Burntside River near Ely, Total drainage area (mi2) 220 2.80 8.23 1.16 2,300 150 555 5.05 6.18 254 6.61 1,380 5,270 88.8 255 422 40,200 424 254 339 9.66 215 55.1 1,229 68.9 Period of record 1944-95 1960-85 1960-85 1960-85 1930-93 1979-95 1939-95 1960-85 1960-81 1950, 1961-95 1961-90 1910-17, 1919, 1935-95 1897, 1902, 1904-20, 1922-95 1979-95 1945, 1950-95 1929-37, 1941-47, 1954-95 1861, 1913-95 1929-38, 1940-95 1967-95 1953-61, 1976-77 1975-85 1976-80, 1986-95 1952-62, 1976-80 1906-07, 1913-19, 1924-95 1968-78 Water year 1979 1975 1979 1975 1985 1975 1975 1950 1979 1979 1985 1962 1973 1969 1950 1981 1979 1969 1979 1975 1966 1950 1861 1968 1966 1976 1976 1980 1976 1979 1950 1906 1970 Stage (ft) 23.36 15.09 16.50 16.85 18.70 9.91 13.39 13.42 18.49 12.31 12.69 14.35 16.11 14.91 18.39 16.92 12.38 27.33 17.10 16.59 18.23 90.89 95.00 22.32 23.37 5.92 9.73 8.87 8.71 8.02 - -- 8.59 Dis- charge (ft3/*) 4,880 126 60 896- 140 4,060 3,720 1,480 3,940 194 132 152 3,210 2,790 420 10,300 28,400 1,000 4,260 5,410 95,500 -- 5,750 5,050 1,720 3,900 426 2,490 876 16,000 3,330 455 Significant floods during 1970-89 Date (month/ day/year) 4/19/79 7/02/75 7/02/75 7/02/75 7/07/75 4/25/79 4/26/79 4/25/79 5/11/85 9/02/73 4/09/78 6/28/81 4/19/78 4/25/79 4/26/79 4/25/79 7/03/75 6/01/70 4/09/87 5/01/79 4/25/79 6/29/85 4/24/76 4/19/76 9/13/80 4/19/76 4/22/79 4/23/76 6/12/70 Stage (ft) 23.36 15.09 16.85 9.91 13.39 12.30 18.49 12.31 12.69 16.11 16.64 16.92 11.56 12.38 24.99 17.10 16.59 14.51 91.19 21.78 21.14 5.92 9.73 8.87 8.71 8.02 .. 8.59 Dis- charge (ftS/s) 4,880 126 896 140 4,060 3,660 1,480 3,940 194 152 3,140 420 9,890 10,300 21,900 1,000 4,260 4,140 37,400 92,700 5,480 5,170 1,720 3,900 426 2,490 876 8,740 455 Regu- lated during flood1 Y N N N Y Y N N N N N N N N N N N Y N Y N N N N N N N Y N Recur- rence interval (years) 30-35 20-30 >100 50-100 15 10 15-35 30 50-100 20-30 20 >100 30-35 35-40 25 25-50 50-75 25-30 5 >100 20 20 20 10-25 25-50 25-50 25-50 15 25-50 MN 304 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 24. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Minnesota Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 45) 05127210 05127215 05127220 05127230 05128300 05128700 05129115 05129290 05129650 05129710 05130300 05130500 05131500 05131750 05131878 05132000 05133500 05134200 05139500 05140000 05200200 05200445 05201500 05206500 05210200 05217700 Station name Armstrong Creek near Ely, MN Longstorff Creek near Ely, MN Burgo Creek near Ely, MN Shagawa River at Ely, MN Pike River near Gilbert, MN Pike River tributary near Wahlsten, MN Vermilion River near Crane Lake, MN Gold Portage outlet from Kabetogama Lake near Ray, MN Little Fork River at Cook, MN Johnson Creek near Britt, MN Boriin Creek near Chisholm, MN Sturgeon River near Chisholm, MN Little Fork River at Littlefork, MN Big Fork River near Bigfork, MN Bowerman Brook near Craigville, MN Big Fork River at Big Falls, MN Rainy River at Manitou Rapids, MN Rapid River near Baudette, MN Warroad River near Warroad, MN Bulldog Run near Warroad, MN Hennepin Creek near Becida, MN Mississippi River at Bemidji, MN Mississippi River at Winnibigoshish Dam, MN Leech Lake River at Federal Dam, MN Smith Creek near Hill City, MN Bluff Creek near Jacobson, MN Total drainage area (mi2) 5.99 8.6 2.84 99.0 0.73 2.71 905 - 68.2 7.95 13.7 180 1,680 605 25.7 1,480 19,400 543 170 11.8 36.0 358 1,442 1,163 8.01 1.46 Period of record 1968-78 1968-78 1968-78 1968-78 1966-81 1961-81 1979-95 1983-94 1968-84 1961-64, 1966-75 1959-92 1943-95 1910-17, 1929-95 1973-95 1979-95 1910-12, 1929-94 1929-95 1950, 1957-85 1946-80 1946-51, 1967-83 1979-93 1973-95 1982-94 1982-94 1961-95 1961-81 Water year 1970 1970 1970 1974 1970 1978 1974 1966 1985 1988 1970 1971 1966 1969 1950 1979 1916 1979 1979 1950 1950 1985 1979 1965 1979 1985 1979 1989 1982 1982 1981 1978 Stage (ft) 5.88 6.52 12.14 12.59 6.89 9.85 8.22 8.91 15.20 19.23 21.40 8.19 9.19 13.40 6.41 6.60 37.00 15.48 14.73 17.08 21.04 22.78 9.66 9.95 7.54 15.25 13.04 - -- - 7.95 9.99 Dis- charge (ft3/s) 131 230 732 133 640 89 105 25 4,360 897 2,200 37 35 700 3,630 2,460 25,000 2,830 650 14,800 71,600 7,580 2,070 1,780 498 375 1,690 1,460 1,440 1,300 445 139 Significant floods during 1970-89 Date (month/ day/year) 5/21/70 6/10/70 6/10/70 6/12/70 7/18/78 10/10/73 4/25/85 9/21/88 6/1 1/70 4/16/71 4/20/79 4/22/79 4/25/79 4/22/79 4/21/79 4/22/79 6/10/74 4/26/79 6/26/85 4/25/79 4/18/79 5/11/85 4/23/79 6/27/89 5/17/82 8/05/81 8/23/78 Stage (ft) 5.88 6.52 12.14 6.89 9.85 8.22 15.20 19.23 21.40 8.19 13.37 6.60 32.59 15.48 14.73 15.90 19.04 21.13 22.78 9.66 7.54 15.25 13.04 - -- 7.95 9.99 Dis- charge (ft3/s) 131 230 732 640 89 105 4,360 897 2,200 37 560 2,460 20,600 2,830 650 14,000 61,600 7,550 7,580 2,070 498 375 1,690 1,460 1,300 445 139 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N Y Y N N Recur- rence interval (years) 10-25 25-50 >50 40-60 50-100 15-25 15-25 25-50 >50 10-25 30 25 20 40-60 10-25 25-30 15 20-30 20-30 20 15-20 >75 40-60 5-10 25-50 35-40 30-50 Significant Floods, 1970 Through 1989, Minnesota 305 Table 24. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Minnesota Continued Maximum stage and discharge for period of record through 1 995 Station number (fig. 45) 05219000 05220500 05221020 05227500 05231000 05244000 05244100 05244200 05244440 05245100 05245800 05247000 05261000 05267000 05267800 05267900 05268000 05270300 05270310 05271800 05272300 05273510 05274200 05276200 05278000 Station name Sandy River at Sandy Lake Dam at Libby, MN Mississippi River below Sandy River near Libby, MN Willow River below Palisade, MN Mississippi River at Aitkin, MN Pine River at Cross Lake Dam at Cross Lake, MN Crow Wing River at Nimrod, MN Kitten Creek near Sebeka, MN Cat River near Nimrod, NM Leaf River near Aldrich, MN Long Prairie River at Long Prairie, MN Sevenmile Creek near Pillager, MN Gull River at Gull Lake Dam near Brainerd, MN Mississippi River near Fort Ripley, MN Mississippi River near Royalton, MN Big Mink Creek tributary near Lastrup, MN Hillman Creek near Pierz, MN Platte River at Royalton, MN Sauk River tributary at Spring Hill, MN Sauk River tributary number 2 near St. Martin, MN Johnson Creek tributary at Luxemburg, MN Johnson Creek near St. Augusta, MN Mississippi River at Clearwater, MN Stony Brook tributary near Foley, MN North Fork Crow River at Paynesville, MN Middle Fork Crow River near Spicer, MN Total drainage area (mi2) 421 5,060 523 6,140 562 1,010 18.9 57.1 870 434 20.1 287 11,010 11,600 1.31 45.0 432 7.11 0.26 3.89 45.6 - 2.63 243 163 Period of record 1982-94 1930-90 1972-95 1888, 1899, 1902-95 1982-95 1910-14, 1931-74, 1976-87, 1992-95 1961-78 1961-95 1972-95 1972-95 1979-93 1982-94 1972-95 1924-95 1961-80 1964-95 1930-36, 1972-95 1960-90 1960, 1962-85 1964-89 1964-95 1972-94 1960-89 1973-95 1949-87 Water year 1986 1982 1950 1979 1950 1985 1982 1974 1965 1974 1965 1974 1979 1972 1983 1986 1982 1979 1965 1924 1972 1969 1972 1986 1978 1978 1984 1985 1985 1975 1972 1984 1986 1957 Stage (ft) -- -- 20.02 17.25 22.49 - -- 7.35 7.57 10.95 11.14 9.43 16.15 9.37 13.08 -- 47.42 - -- 12.56 15.48 7.84 12.85 22.76 12.12 12.19 11.25 16.37 19.28 14.29 10.59 6.47 6.67 Dis- charge (frVs) 2,040 1,840 16,000 3,730 20,000 2,150 1,600 3,700 2,890 400 320 560 5,170 3,270 285 672 568 28,000 37,700 6,380 86 2,960 6,850 2,390 1,440 559 376 218 2,350 35,600 204 2,300 571 387 Significant floods during 1970-89 Date (month/ day/year) 5/21/86 5/09/75 4/25/79 5/03/75 4/26/79 7/21/85 10/10/73 4/18/79 10/10/73 10/12/73 4/22/79 7/22/72 6/14/83 5/16/86 4/19/79 4/29/75 4/24/79 7/22/72 7/22/72 7/26/72 7/06/78 7/06/78 9/09/85 6/26/83 9/09/85 4/30/75 7/22/72 5/10/86 6/22/84 6/22/83 7/28/86 Stage (ft) - 16.18 17.25 - - 7.35 7.24 10.95 9.43 16.15 9.37 13.08 47.42 - - 12.56 15.25 7.84 22.76 12.12 11.25 15.30 16.37 19.28 14.29 13.08 10.59 6.02 6.47 Dis- charge (frVs) 2,040 8,770 3,730 14,500 13,300 2,150 3,700 3,610 400 560 5,170 3,270 285 672 28,000 30,700 35,100 86 2,490 6,850 1,440 559 218 1,100 2,350 35,600 204 180 2,300 509 571 Regu- lated during flood1 Y Y N Y Y Y N N N N N N N Y N Y Y N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 15 20-30 25 15 25-50 50-75 50-75 10-25 25-35 20 >100 10-25 10-25 20-30 20 35-40 30-50 30-40 >100 50-100 >100 >100 25 >100 20 25 20 20-30 15 25 306 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 24. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Minnesota Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 45) 05284100 05284600 05284920 05286000 05287890 05292000 05299100 05301000 05301200 05302500 05311000 05315000 05316690 05316800 05316850 05316900 05316920 05317850 05318100 05318300 05318897 05320200 05320400 05320480 05330150 Station name Mille Lacs Lake tributary near Wealthwood, MN Robinson Brook near Onamia, MN Stanchfield Creek tributary near Day, MN Rum River near St. Francis, MN Elm Creek near Champlin, MN Minnesota River at Ortonville, MN Lazarus Creek tributary near Canby, MN Minnesota River near Lac Qui Parle, MN Minnesota River tributary near Montevideo, MN Little Chippewa River near Starbuck, MN Minnesota River at Montevideo, MN Redwood River near Marshall, MN Spring Creek tributary near Sleepy Eye, MN Cottonwood River tributary near Balaton, MN Meadow Creek tributary near Marshall, MN Dry Creek near Jeffers, MN Cottonwood River tributary near Sanborn, MN Foster Creek near Alden, MN East Branch Blue Earth River tributary near Blue Earth, MN Watonwan River near Delft, MN South Fork Watonwan River near Ormsby, MN Le Sueur River tributary near Mankato, MN Maple River tributary near Mapleton, MN Maple River near Rapidan, MN Sand Creek tributary near Total drainage area (mi2) 0.54 4.73 1.34 1,360 86.0 1,160 2.95 4,050 0.40 96.2 6,180 259 4.13 0.90 0.47 3.16 0.38 2.34 9.66 13.5 107 0.06 5.74 338 0.35 Period of record 1961-72 1960-85 1961-85 1930-95 1979-95 1938-95 1960-90 1943-94 1960-75 1979-95 1910-95 1940-95 1966-90 1959-85 1961-72 1961-85 1966-90 1959-84 1960-85 1960-95 1979-95 1959-85 1959-85 1972-95 1961-81 Water year 1972 1972 1972 1969 1986 1952 1963 1969 1970 1969 1979 1982 1969 1993 1979 1979 1971 1972 1984 1965 1977 1972 1981 1981 1993 1965 1980 1981 1968 1981 1983 1979 Stage (ft) 12.34 19.32 10.22 11.63 9.93 12.92 18.49 39.75 10.57 14.40 12.54 13.22 21.68 17.00 7.49 10.84 15.05 16.59 10.20 10.64 6.84 8.59 8.19 12.08 17.70 18.42 18.40 24.91 24.99 23.35 12.73 11.01 Dis- charge (ft3/s) 53 458 203 10,100 597 3,060 1,000 29,400 58 30 195 140 35,100 6,380 130 486 112 29 530 400 103 7 223 610 1,000 810 1,920 377 36 2,000 4,550 82 Significant floods during 1970-89 Date (month/ day/year) 7/22/72 7/22/72 7/22/72 7/29/72 3/27/86 3/27/89 6/16/70 4/08/86 6/15/70 4/16/79 4/08/86 5/07/83 7/20/79 6/19/79 4/07/71 6/12/84 6/16/77 7/15/81 6/23/81 5/30/80 5/31/80 6/23/81 7/27/81 3/01/83 8/21/79 Stage (ft) 12.34 19.32 10.22 11.20 9.93 10.76 14.92 36.80 10.57 12.54 17.26 14.70 7.49 10.84 15.05 10.20 6.84 8.19 12.08 17.82 18.40 24.91 23.35 12.73 11.01 Regu- Dis- lated charge during (ft3/s) 53 458 203 9,540 597 2,780 486 13,200 58 195 14,000 3,270 130 486 112 530 103 223 610 900 1,920 377 2,000 4,550 82 flood1 N N N N N N N Y N N Y N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 50-100 >100 20 10 20 10 25 10-25 10 15 15 15 40-50 10-25 15 10 10 30-40 20 10-25 >100 >100 20-30 >100 Montogomery, MN Significant Floods, 1970 Through 1989, Minnesota 307 Table 24. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Minnesota Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 45) 05331000 05336200 05336300 05336550 05336700 05337400 05338200 05338500 05340050 05355200 05372800 05372930 05372950 05372990 05372995 05373080 05373350 05373700 05373900 05374400 05374900 05376000 05376500 05376800 Station name Mississippi River at St. Paul, MN Glaisby Brook near Kettle River, MN Moose River tributary at Moose Lake, MN Wolf Creek tributary near Sandstone, MN Kettle River below Sandstone, MN Knife River near Mora, MN Mission Creek near Hinckley, MN Snake River near Pine City, MN Sunrise River near Lindstrom, MN Cannon River at Welch, MN South Fork Zumbro River on Belt Line at Rochester, MN Bear Creek at Rochester, MN Silver Creek at Rochester, MN Cascade Creek at Rochester, MN South Fork Zumbro River at Rochester, MN Milliken Creek near Concord, MN Zumbro River tributary near South Troy, MN Spring Creek near Wanamingo, MN Trout Brook tributary near Goodhue, MN Long Creek near Potsdam, MN Zumbro River at Kellogg, MN North Fork Whitewater River near Elba, MN South Fork Whitewater River near Altura, MN Whitewater River near Beaver, MN Total drainage area (mi2) 36,800 27.0 1.45 4.02 868 102 4.12 974 231 1,340 155 78.8 17.7 38.2 303 22.1 0.11 10.0 0.37 4.44 1,400 101 77.4 271 Period of record 1867-70, 1872-1995 1960-93 1960-81 1960-89 1965, 1968-95 1975-95 1960-85 1914-17, 1950, 1952-87, 1992-95 1966-85 1888, 1911-13, 1931-87, 1992-95 1969-83 1969-83 1969-83 1969-83 1951-95 1979-95 1962-85 1960-86 1960-86 1966-90 1976-90 1940-41, 1967-93 1940-87 1938, 1940-56, 1974-85, 1991-95 Water year 1965 1972 1972 1979 1972 1979 1972 1971 1972 1975 1965 1978 1978 1978 1974 1978 1982 1978 1979 1978 1974 1986 1974 1974 1974 1978 Stage (ft) 26.01 10.18 13.26 20.03 15.38 6.31 15.39 15.72 10.38 7.65 14.01 5.97 7.87 16.18 83.52 23.36 14.50 14.07 18.08 13.98 26.50 16.07 16.32 10.84 11.00 12.88 Dis- charge (ftVs) 171,000 1,370 479 240 17,200 1,840 217 56 14,300 745 36,100 20,500 24,900 9,290 2,050 30,500 580 138 2,850 759 773 22,300 16,100 5,620 19,200 15,400 Significant floods during 1970-89 Date (month/ day/year) 5/06/86 7/22/72 5/10/79 7/22/72 7/22/72 5/10/79 7/23/72 5/10/79 7/22/72 7/27/72 7/03/75 9/22/86 7/06/78 7/06/78 7/06/78 6/21/74 7/06/78 5/31/82 7/17/78 8/28/79 7/01/78 6/20/74 9/23/86 6/21/74 6/21/74 7/05/78 6/21/74 7/06/78 Stage (ft) 16.10 10.18 9.02 13.26 19.68 20.03 15.38 6.31 15.39 10.38 7.65 13.80 5.97 7.87 16.18 83.52 23.36 14.50 14.07 18.08 13.98 26.50 16.07 16.32 10.84 10.83 11.00 12.88 Dis- charge (frVs) 83,300 1,370 1,080 479 224 240 17,200 1,840 217 14,300 745 33,700 20,500 24,900 9,290 2,050 30,500 580 138 2,850 759 773 22,300 16,100 5,620 5,610 19,200 15,400 Regu- lated during flood1 Y N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 10 40-50 25-35 50-100 15 20 40-50 10 30-40 50-100 30-50 >100 >100 >100 >100 25-50 >100 5-10 20-30 40-60 >100 25-35 25-50 50-100 25 25 50-100 35^15 308 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 24. Maximum stage and discharge for period of record for streamf low-gaging stations having significant floods during 1970-89 in Minnesota Continued Maximum stage and discharge for period of record through 1995 Station number (fig. 45) 05378300 05383700 05383720 05383850 05384120 05384150 05384200 05384300 05384400 05384500 05385500 05387030 05457000 05457080 05474750 05474760 05475400 06482950 Station name Straight Valley Creek near Rollingstone, MN Mill Creek tributary near Chatfield, MN Mill Creek near Chatfield, MN South Fork Bear Creek near Grand Meadow, MN South Branch Root River at Lanesboro, MN Root River tributary near Whalan, MN Gribben Creek near Whalen, MN Big Springs Creek near Arendahl, MN Pine Creek near Arendahl, MN Rush Creek near Rushford, MN South Fork Root River near Houston, MN Crooked Creek at Freeburg, MN Cedar River near Austin, MN Rose Creek tributary near Dexter, MN Beaver Creek tributary number 2 near Slayton, MN Beaver Creek tributary above Slayton, MN Warren Lake tributary near Windom, MN Mound Creek near Hardwick, MN Total drainage area (mi2) 5.02 2.39 22.6 14.1 297 0.09 7.78 0.15 28.2 132 275 44.8 399 1.13 5.01 2.22 3.29 2.52 Period of record 1959-85 1959-75 1962-85 1962-85 1973-86, 1988 1959-81 1959-85 1959-81 1959-85 1942-95 1950, 1953-83, 1985-95 1979-95 1910-14, 1945-95 1962-85 1961-85 1961-85 1960-87 1959-85 Water year 1978 1974 1978 1978 1981 1980 1974 1974 1978 1950 1974 1976 1984 1992 1978 1978 1979 1962 1979 1962 1980 1966 1979 Stage (ft) 18.10 17.32 17.79 23.18 13.48 10.07 22.24 11.61 15.58 13.54 13.81 14.75 15.66 19.02 20.35 11.82 20.87 21.22 20.80 21.56 12.84 13.76 11.66 Dis- charge (ft3/s) 1,500 1,030 8,580 8,500 9,500 172 5,200 256 4,150 11,600 11,000 10,800 1,430 -- 12,400 1,090 228 211 160 116 666 395 459 Significant floods during 1970-89 Date (month/ day/year) 7/05/78 6/20/74 7/06/78 7/17/78 7/11/81 5/30/80 6/20/74 6/20/74 7/01/78 7/01/78 6/21/74 7/01/78 6/17/84 7/17/78 7/17/78 7/20/79 7/20/79 5/29/80 8/09/79 Stage («) 18.10 17.32 17.79 23.18 13.48 10.07 22.24 11.61 15.58 11.20 13.81 13.79 15.66 20.35 11.82 20.87 20.80 12.84 11.66 Dis- charge (ft3/s) 1,500 1,030 8,580 8,500 9,500 172 5,200 256 4,150 7,930 11,000 11,000 1,430 12,400 1,090 228 160 666 459 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 20-30 50-100 50-100 >100 10-25 20-30 30-40 >100 25-35 15 35-40 35-40 5-10 25-50 >100 20-30 20-30 >100 45-55 Regulated during flood: N, no; Y, yes. Significant Floods, 1970 Through 1989, Minnesota 309 Mississippi Hydroclimatology Mississippi is located in the southeastern United States and is bordered on the south by the Gulf of Mexico and on the west by the Mississippi River. Mis- sissippi has a humid climate. The principal source of moisture is the Gulf of Mexico. During most of the year, tropical airmasses bring moisture inland from the Gulf. Occasionally, Pacific moisture reaches Missis- sippi, but this is rare. The summer months usually bring airmass-type thunderstorm activity with locally intense rainfall. The threat of hurricanes and tropical storms exists from mid-summer to late fall. Rainfall in the late fall to late spring is usually caused by frontal systems that can stall out and persist for several days. Mean annual precipitation ranges from about 50 in. in the north to about 68 in. near the coast of the Gulf of Mexico in southeastern Mississippi. Flooding in Mississippi usually is associated with excessive rainfall from stalled frontal systems during the winter and spring months. Flooding from severe thunderstorms associated with cold fronts or squall lines can occur in any month. Tropical storm and hur- ricane flooding can be caused by excessive rainfall and from storm surges along the coast. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Mississippi is dependent upon the drain- age area, main-channel slope, and the main-channel length, from the point of discharge to the drainage divide (Jennings and others, 1994). Significant Floods Significant flooding occurred in April and May 1983 when a series of storms produced excessive rainfall statewide. In April, 15 streamflow-gaging sta- tions recorded maximum discharges with recurrence intervals equal to or greater than the 100-year recur- rence interval. Forty percent of the streamflow-gaging stations in the southern part of the State recorded max- imum discharges with recurrence intervals greater than the 20-year recurrence interval. The flooding in May was caused by excessive rainfall over the northern two-thirds of the State. This flooding caused one death and damages of approximately $500 million (Paulson and others, 1991). The Easter flood of April 1979 on the Pearl River was the largest and most damaging flood in recent his- tory. The flood was a result of a major storm that pro- duced rainfall totals of 12 to 21 in. in the headwaters of the Pearl River. The discharges recorded on the main stem of the Pearl River were generally equal to or greater than the 100-year recurrence interval. Twenty percent of the streamflow-gaging stations in the State recorded significant discharges at this time. During the flood of 1973 that occurred from March through May, 15 percent of the gaging stations in the State recorded significant discharges. The March flood resulted in maximum discharges greater than the 100-year recurrence interval at some stations in the Tombigbee River Basin, and in the Yazoo River Basin floodwater passed over the emergency spillways of four flood-control dams. These floods were part of a major regional flood that extended from Mississippi and Tennessee to Alabama and Georgia. As a result of the 1973 floods, 19 lives were lost, and more than $200 million in damages were sustained in Mississippi (Paulson and others, 1991). The location of streamflow-gaging stations in Mis- sissippi that had significant floods for 1970-89 is shown in figure 46 by station number. The specific data for each significant flood are listed in table 25. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94^002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. 310 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 90° TENNESSEE _ ^ 8f _ 02432500 Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' EXPLANATION 07373550^1 Streamflow-gaging station and number 0 GULF OF MEXICO 20 40 60 MILES 0 20 40 60 KILOMETERS Figure 46. Location of streamf low-gag ing stations with significant floods during 1970-89 for Mississippi. Significant Floods, 1970 Through 1989, Mississippi 311 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant .floods during 1970-89 in Mississippi [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 02429900 02429949 02430000 02430500 02431000 02432500 02433000 02433500 02434000 02436500 02437000 02437500 02437600 02439400 02439997 02440000 02440400 02440500 02440800 02441000 Station name Big Brown Creek near Booneville, MS Little Brown Creek near New Site, MS Mackeys Creek near Dennis, MS Tombigbee River near Marietta, MS Tombigbee River near Fulton, MS Bull Mountain Creek at Tremont, MS Bull Mountain Creek near Smithville, MS Tombigbee River at Bigbee, MS Town Creek at Tupelo, MS Town Creek near Nettleton, MS Tombigbee River near Amory, MS Tombigbee River at Aberdeen, MS James Creek at Aberdeen, MS Buttahatchee River near Aberdeen, MS Chuquatonchee Creek tributary near Trebloc, MS Chuquatonchee Creek near Egypt, MS Houlka Creek near McCondy, MS Chuquatonchee Creek near West Point, MS Trim Cane Creek near Starkville, MS Tibbee Creek near Tibbee, MS Total drainage area (mi2) 27.1 42.2 66.9 308 612 136 336 1,226 111 620 1,928 2,171 28.4 798 0.72 167 189 505 44.9 926 Period of record 1953-93 1974-85, 1987-89 1939-79 1938-51, 1955, 1968-77, 1991-93 1929-93 1941-64, 1973-83, 1991-93 1927, 1941-91 1927, 1937-42, 1944, 1946-55, 1957-58, 1962, 1964-93 1939-46, 1949-93 1927, 1940-93 1892, 1927, 1938-93 1892, 1909-83 1963-94 1967-93 1966-84 1950-83, 1985-93 1963-93 1941-46, 1948-93 1940, 1952-94 1927, 1929-30, 1940-93 Water year 1970 1983 1955 1973 1991 1955 1991 1975 1983 1973 1973 1955 1955 1973 1973 1985 1991 1973 1971 1973 1973 1973 1983 1973 Stage (ft) 99.97 14.65 28.44 12.30 15.24 25.75 27.72 9.80 14.06 18.26 27.64 27.72 33.88 34.65 45.02 15.21 24.82 23.48 9.18 16.61 18.65 24.58 28.10 32.26 Dis- charge (ftVs) 3,900 8,390 16,300 30,600 82,200 73,800 15,000 44,400 112,000 23,000 151,000 162,000 123,000 6,970 6,280 80,000 540 36,300 40,000 57,100 9,980 81,600 Significant floods during 1970-89 Date (month/ day/year) 4/17/70 5/19/83 3/16/73 3/16/73 3/17/73 12/27/82 3/13/75 3/16/73 3/17/73 5/19/83 3/16/73 3/17/73 3/18/73 2/03/83 10/22/84 3/17/73 2/21/71 3/16/73 3/16/73 3/17/73 4/13/79 5/19/83 3/17/73 Stage (ft) 99.97 14.65 22.83 12.30 23.00 23.70 9.80 18.26 27.64 25.66 32.73 34.65 45.02 14.85 15.21 23.48 9.18 16.61 18.65 24.58 27.95 28.10 32.26 Dis- charge (ft3/*) 3,900 8,390 7,030 30,600 56,700 59,400 15,000 44,400 112,000 15,000 72,600 162,000 123,000 6,330 6,970 80,000 540 36,300 40,000 57,100 9,600 9,980 81,600 Regu- lated during flood1 N N N N N Y Y N N N N N N N N N N N N N N N N Recur- rence interval (years) 10 25-50 -- 10-25 30-40 35-45 10-25 >100 50-100 10 40-50 75-100 50-75 10-25 10-25 >100 25-50 200 >100 75-100 25 25-50 50 02441220 Sand Creek tributary near Mayhew, MS 0.44 1966-93 1984 8.75 395 4/27/84 8.75 395 25 312 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 02441500 02443000 02443500 02443700 02447220 02447280 02447500 02447800 02448000 02448620 02467100 02469672 02471100 02471500 02472000 02472160 02472500 02472700 02472810 02473000 Station name Tombigbee River at Columbus, MS Luxapallila Creek at Steens, MS Luxapallila Creek near Columbus, MS Cedar Creek near Brooksville, MS Bogue Fallah tributary near Ackerman, MS Lawson Brook near Betheden, MS Noxubee River near Brooksville, MS Hashuqua Creek near Macon, MS Noxubee River at Macon, MS Flat Scooba Creek tributary near Scooba, MS Hamilton Brook near Dekalb, MS Little Okatuppa Creek near Quitman, MS Leaf River near Raleigh, MS Oakohay Creek at Mize, MS Leaf River near Collins, MS Big Creek tributary near Laurel, MS Bouie Creek near Hattiesburg, MS Okatoma Creek tributary at Mt. Olive, MS Okatoma Creek tributary number 2 near Collins, MS Leaf River at Hattiesburg, MS Total drainage area (mi2) 4,463 309 715 0.49 0.34 1.11 446 96.2 768 0.44 0.97 4.35 143 185 743 0.17 304 0.33 0.21 1,748 Period of record 1892-1985, 1989-93 1940-93 1892, 1927, 1929-30, 1938-39, 1948-49, 1951, 1961-62, 1964-65, 1968-69, 1973-93 1965-84 1966-84 1965-77 1940-73, 1979 1951-70, 1976, 1979 1892, 1927, 1929-32, 1939-93 1967-93 1965-77 1966-84 1856, 1900, 1940-43, 1957-81, 1983-93 1942-49, 1961, 1968-76, 1978-93 1856, 1900, 1939-93 1966-84 1900, 1939-93 1965-77 1967-84 1900, 1905-93 Water year 1892 1973 1949 1979 1892 1984 1979 1977 1979 1979 1979 1979 1974 1984 1974 1974 1856 1983 1900 1974 1983 1974 Stage (ft) 40.09 42.22 19.20 32.35 35.30 8.32 9.17 10.43 28.30 100.04 38.97 8.87 7.58 9.01 28.17 17.26 33.00 6.50 33.50 6.21 8.61 34.03 Dis- charge (ft'/s) 268,000 194,000 16,000 40,400 552 472 964 76,000 28,000 125,000 427 662 1,850 17,000 28,900 56,000 211 50,000 318 314 121,000 Significant floods during 1970-89 Date (month/ day/year) 3/19/73 4/14/79 4/14/79 4/27/84 4/12/79 1/09/77 4/12/79 4/12/79 4/13/79 4/12/79 4/13/74 2/27/84 4/13/74 4/13/74 4/07/83 4/14/74 4/06/83 4/14/74 4/13/74 4/06/83 4/15/74 Stage (ft) 42.22 18.73 32.35 8.32 9.17 10.43 28.30 100.04 38.97 8.87 7.58 9.01 28.17 17.26 15.62 32.60 6.50 28.18 6.21 8.61 34.03 Dis- charge (tf/s) 194,000 14,200 40,400 552 472 964 76,000 28,000 125,000 427 662 1,850 17,000 28,900 16,900 54,200 211 45,500 318 314 121,000 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 40-50 10-25 25 50-100 >100 50-100 >100 >100 >200 50-100 10-25 10-25 25-50 >100 25 50-100 10 200 10-25 25 >200 Significant Floods, 1970 Through 1989, Mississippi 313 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 02473047 02473460 02473480 02473498 02473500 02473610 02474500 02474600 02474650 02475000 02475050 02475220 02475350 02475500 02477000 02477050 02477330 02477990 02478600 02479130 02479138 02479187 02479300 02479560 Station name Gordon Creek at Hattiesburg, MS Tallahala Creek at Waldrup, MS Tallahattah Creek near Waldrup, MS Tallahala Creek tributary at 8th Street at Laurel, MS Tallahala Creek at Laurel, MS Tallahala Creek tributary number 2 at Grandview at Laurel, MS Tallahala Creek near Runnelstown, MS Bogue Homo near Richton, MS Buck Creek near Runnels- town, MS Leaf River near McLain, MS Waterfall Branch near McLain, MS Little Rock Creek tributary near Little Rock, MS Tarlow Creek near Newton, MS Chunky River near Chunky, MS Chickasawhay River at Enterprise, MS Souinlovie Creek near Baxter, MS Shubuta Creek near Shubuta, MS Buckatunna Creek near Denham, MS Granny Branch at Piave, MS Black Creek near Brooklyn, MS Walls Creek tributary near Brooklyn, MS Red Creek tributary near Wiggins, MS Red Creek at Vestry, MS Escatawpa River near Agricola, MS Total drainage area (mi2) 8.83 102 30.4 1.12 238 1.52 612 344 20.8 3,495 0.65 0.22 16.1 369 918 1.14 75.5 492 0.69 355 0.37 0.22 441 562 Period of record 1969-93 1961, 1969-93 1965-93 1974-84 1900, 1920, 1938-93 1974-84 1900, 1920, 1940-93 1941-43, 1971-77, 1979-93 1951-77, 1979-81, 1983-93 1900, 1938, 1940-72, 1974-93 1955-93 1965-84 1953-70, 1979 1939-93 1871, 1900, 1905-93 1964-93 1963-66, 1968-93 1972-93 1967-84 1961, 1971-93 1966-77, 1983 1966-84 1959-93 1974-86, 1989-94 Water year 1983 1974 1979 1974 1983 1976 1920 1976 1900 1974 1979 1961 1900 1959 1979 1979 1979 1961 1979 1993 1973 1979 1984 1983 1974 1983 1987 1983 Stage (ft) 61.89 23.18 17.20 18.14 39.15 39.23 26.00 32.30 30.50 27.63 91.41 94.89 31.80 11.71 7.79 18.86 26.64 37.94 41.90 13.56 24.88 34.90 6.77 29.96 10.39 9.54 21.48 22.39 Dis- charge (ft3/s) 6,920 17,900 7,200 -- 856 821 38,300 920 38,000 21,900 5,700 3,900 131,000 764 265 3,500 40,900 61,700 49,800 1,150 12,700 12,200 433 42,500 490 390 28,000 33,700 Significant floods during 1970-89 Date (month/ day/year) 4/06/83 4/13/74 3/03/79 5/20/83 4/14/74 3/30/76 4/16/74 2/28/73 4/03/79 4/18/74 4/06/83 4/12/79 3/04/79 4/13/74 3/04/79 4/14/74 4/14/79 4/18/73 4/25/73 3/06/79 5/03/84 4/07/83 4/13/74 4/06/83 4/08/83 8/15/87 4/09/83 Stage (ft) 61.89 23.18 17.20 39.15 23.28 32.30 28.44 27.63 91.41 30.38 10.73 7.79 18.86 25.45 26.64 40.25 41.90 12.56 24.88 34.90 6.77 29.96 10.39 9.54 21.18 21.48 22.39 Dis- charge (ft3/s) 6,920 17,900 7,200 856 23,300 920 27,900 21,900 5,700 110,000 655 265 3,500 29,800 40,900 45,300 49,800 1,050 12,700 12,200 433 42,500 490 390 26,800 28,000 33,700 Regu- lated during flood 1 N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) >100 50-100 25-50 5-10 30-40 10-25 25 10-25 50 35-45 10-25 10-25 25-50 20 50 15-20 20 25-50 25-50 5-10 10 >100 50-100 >100 25 25-50 25-50 314 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 02480500 02481000 02481505 02481510 02481810 02481840 02481880 02481900 02482000 02482100 02482310 02482500 02482550 02482900 02483000 02483500 02484000 02484500 02484600 02484760 02485000 02485380 Station name Tuxachanie Creek near Biloxi, MS Biloxi River at Wortham, MS Mill Creek tributary near Lizana, MS Wolf River near Landon, MS Tallahaga Creek near Noxapater, MS Noxapater Creek near Noxapater, MS Pearl River at Burnside, MS Coonshuck Creek tributary near House, MS Pearl River at Edinburg, MS Indian Branch near Edinburg, MS Lobutcha Creek tributary at Wamba, MS Lobutcha Creek near Carthage, MS Pearl River near Carthage, MS Tallabogue Creek tributary near Harperville, MS Tuscolameta Creek at Walnut Grove, MS Pearl River near Lena, MS Yockanookany River near Kosciusko, MS Yockanookany River near Ofahoma, MS Coffee Bogue at Ludlow, MS Fannegusha Creek near Sand Hill, MS Pearl River at Meeks Bridge near Canton, MS Hollybush Creek tributary Total drainage area (mi2) 92.4 96.2 2.29 308 58.6 31.7 520 0.20 904 1.91 0.94 309 1,346 0.12 411 1,981 303 469 77.0 52.3 2,755 0.59 Period of record 1906, 1948, 1953-93 1948, 1953-93 1967-77 1971-93 1953-70, 1974, 1979 1952-70, 1979 1935, 1938-39, 1962, 1979, 1981-93 1965-77, 1979 1878, 1902, 1909-93 1965-84 1964-84 1938-70, 1979 1874, 1900, 1902, 1932, 1938-39, 1962-93 1965-77 1900, 1902, 1939-93 1902, 1937-53, 1962, 1974, 1979, 1983 1933, 1938-93 1938-93 1971-80, 1982-87, 1989-93 1971-93 1933, 1938-63, 1979, 1983 1965-84 Water year 1906 1987 1983 1973 1983 1993 1979 1979 1979 1975 1979 1979 1979 1979 1979 1975 1950 1974 1979 1979 1979 1991 1989 1980 1973 1979 1983 Stage («) 23.20 23.63 25.30 7.68 21.53 27.12 97.09 98.10 23.60 5.55 30.06 5.47 12.77 19.99 28.74 5.74 23.00 30.20 32.20 23.06 23.27 23.48 15.93 13.35 13.36 29.50 8.03 Dis- charge (ft3/s) 21,000 19,600 10,300 1,240 18,400 16,600 22,600 23,000 76,600 208 77,900 710 1,240 44,000 102,000 108 34,600 26,600 122,000 40,700 46,500 13,200 9,550 9,000 7,100 145,000 470 Significant floods during 1970-89 Date (month/ day/year) 8/15/87 4/08/83 3/24/73 4/08/83 4/13/79 3/13/79 4/13/79 4/12/79 4/14/79 5/22/83 4/12/79 4/12/79 4/13/79 4/14/79 5/22/83 2/23/74 4/14/74 4/--T79 3/15/75 4/13/79 4/14/79 5/22/83 7/04/89 4/12/80 4A-/79 4/06/83 Stage (ft) 23.63 25.30 7.68 21.53 97.09 98.10 23.60 5.55 30.06 28.35 5.47 12.77 19.99 28.74 27.07 5.74 30.20 32.20 18.86 23.06 23.27 20.20 15.93 13.35 29.50 8.03 Dis- charge (ft3/s) 19,600 10,300 1,240 18,400 22,600 23,000 76,600 208 77,900 52,300 710 1,240 44,000 102,000 69,500 108 26,600 122,000 18,600 40,700 46,500 21,900 9,550 9,000 145,000 470 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) >100 25-50 10-25 10-25 >100 >100 >100 10-25 >200 100 10-25 >100 >100 >200 100-200 5-10 15-20 >200 10-15 >200 >200 20 25-50 10-25 >200 25-50 number 1 near Pisgah, MS 02485385 Hollybush Creek tributary number 2 near Pisgah, MS 0.25 1965-77 1975 7.04 306 8/01/75 7.04 306 N 25 Significant Floods, 1970 Through 1989, Mississippi 315 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 02485392 02485700 02485900 02486000 02486115 02486240 02486350 02486690 02487230 02487300 02487500 02487600 02487620 02487670 02487690 02487900 02488000 02488340 02488500 02488510 02488540 02488550 02488680 Station name Clear Creek tributary near Pelahatchie, MS Hanging Moss Creek near Jackson, MS Neely Creek near Brandon, MS Pearl River at Jackson, MS Three Mile Creek at Jackson, MS Richland Creek tributary near Brandon, MS Cany Creek at Jackson, MS Rhodes Creek near Terry, MS Strong River near Morton, MS Strong River near Puckett, MS Strong River at D'Lo, MS Dabbs Creek near D'Lo, MS Riles Creek near Mendenhall, MS Boggans Ditch near Mendenhall, MS Baking Powder Draw near Prentiss, MS Copiah Creek near Hazlehurst, MS Pearl River near Rockport, MS Small Pine Ditch near Monticello, MS Pearl River near Monticello, MS Roadside park ditch near Monticello, MS New Hebron Gulley at New Hebron, MS Goines Draw near Pren- tiss, MS Plum Ditch near Prentiss, MS Total drainage area (mi2) 0.12 16.8 1.09 3,171 1.05 0.12 8.38 21.0 16.2 248 425 57.2 25.5 0.94 0.84 47.4 4,556 0.16 4,993 0.25 2.50 0.34 0.23 Period of record 1965-84 1953-93 1964-84 1874, 1881, 1900-93 1962-78, 1966-77 1961-77 1948-67, 1969, 1973 1959-69, 1974-75 1950, 1955-70, 1972-93 1900, 1929-93 1948-69, 1980 1949-50, 1954-70, 1974 1955-84 1955-77 1950, 1953, 1955-81, 1983-84, 1986-93 1874, 1900, 1938-51, 1979, 1983, 1985-93 1955, 1957-77, 1980-84 1874, 1900, 1902, 1924-93 1955-77, 1983 1957, 1965-77, 1983 1955, 1957-74, 1978-84 1955-76, 1983 Water year 1977 1953 1983 1979 1974 1975 1973 1977 1973 1949 1975 1950 1983 1980 1950 1974 1955 1973 1980 1979 1973 1979 1874 1974 1974 1974 1983 Stage («) 6.97 99.60 9.50 43.28 31.52 6.10 70.89 72.87 23.70 24.50 22.00 27.06 33.48 25.94 26.29 26.31 8.16 6.97 25.11 42.83 8.24 34.08 34.50 7.06 17.05 9.10 9.01 Dis- charge (ft3/s) 152 5,320 1,180 128,000 1,720 100 4,400 4,000 5,000 4,470 5,600 19,000 26,400 16,000 9,050 9,050 764 532 32,000 123,000 281 122,000 289 2,650 610 333 Significant floods during 1970-89 Date (month/ day/year) 10/05/76 1/30/77 4/13/83 5/25/83 4/17/79 2/26/71 8/30/74 2/16/75 4/16/73 4/16/73 2/24/74 4/07/83 4/07/83 4/12/80 4/00/74 4/06/83 3/24/73 4/12/80 4/--/79 3/24/73 4/20/79 3/31/80 4/09/83 4/12/74 4/12/74 4/12/74 4/06/83 Stage (ft) 6.97 20.07 9.50 39.58 43.28 31.50 31.52 6.10 70.89 23.70 22.00 26.47 33.48 25.94 26.31 8.09 6.97 25.11 42.83 8.24 34.08 30.50 30.53 7.06 17.05 9.10 9.01 Dis- charge (ft3/s) 152 4,500 1,180 79,500 128,000 1,710 1,720 100 4,400 5,000 5,600 18,600 26,400 16,000 9,050 747 532 32,000 123,000 281 122,000 79,800 80,400 289 2,650 610 333 Regu- lated during flood1 N N N N Y N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 20 50-100 30 >200 10-25 10-25 5-10 10-25 25-50 25-50 10-20 30-40 >100 >100 10-25 10-25 >100 >200 25-50 >200 30-40 30-40 25 >100 >100 50-100 316 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 02488700 02489000 02489030 02489160 02490500 02490550 02490750 03592718 07029252 07029270 07029300 07267000 07268000 07268500 07269000 07272500 07274000 07274250 07275000 07277700 07278500 Station name Whitesand Creek near Oakvale, MS Pearl River near Columbia, MS Elmers Draw near Columbia, MS Kokomo Draw at Kokomo, MS Bogue Chitto near Tylertown, MS Middle Fork Hickory Flat near Tylertown, MS McGees Creek at Tylertown, MS Little Yellow Creek East near Burnsville, MS Pool Brook near Ripley, MS Hatchie River near Walnut, MS Tuscumbia River Canal near Corinth, MS Hell Creek near New Albany, MS Little Tallahatchie River at Etta, MS Cypress Creek near Etta, MS North Tippah Creek near Ripley, MS Little Tallahatchie River at Sardis Dam, MS Yocona River near Oxford, MS Otoucalofa Creek at Water Valley, MS Yocona River at Enid Dam, MS Hickahala Creek near Senatobia, MS Coldwater River at Arkabutla Dam, MS Total drainage area (mi2) 130 5,720 0.91 1.26 492 1.46 152 24.7 1.24 274 277 27.3 526 28.5 20.0 1,545 262 84.1 560 121 1,000 Period of record 1966-93 1874, 1900, 1905-86, 1989-93 1955-93 1955-77, 1983 1936, 1945-93 1953, 1955-84 1900,1943, 1952-74, 1980, 1983 1974-93 1965-75, 1977 1947-80 1950-80 1939, 1942, 1952-58, 1960-74, 1976, 1978-80, 1982-93 1937, 1939-93 1939-42, 1952-76, 1979-80, 1983-93 1939-42, 1948, 1952-66, 1968-80, 1983-85, 1988-93 1940-83 1947-93 1952-76, 1978-80, 1982-93 1927-83 1943-84, 1986-93 1938-83 Water year 1974 1874 1983 1983 1983 1936 1953 1983 1983 1991 1973 1974 1955 1973 1973 1983 1955 1983 1955 1983 1969 1979 1973 1940 1955 1983 1983 1948 1947 1938 Stage (ft) 18.76 31.00 16.22 12.86 34.62 34.70 13.95 31.38 19.83 20.14 5.24 5.74 30.70 33.23 15.72 13.50 17.32 29.02 29.32 19.94 21.17 21.60 -- 23.72 28.38 28.07 21.61 20.60 12.90 Dis- charge (frVs) 25,400 165,000 1,620 2,040 64,200 49,000 2,300 30,000 5,180 3,900 527 350 23,200 21,600 30,300 8,420 3,210 85,200 79,000 11,300 7,100 -- 11,900 4,730 44,100 32,000 15,900 36,300 30,000 30,200 Significant floods during 1970-89 Date (month/ day/year) 4/13/74 4/15/74 4/22/79 4/06/83 4/06/83 4/07/83 4/06/83 4/07/83 4/05/83 10/--/73 3/16/73 3/15/73 2/26/82 5/19/83 12/04/83 5/19/83 11/09/86 5/19/83 4/28/73 2/25/83 5/11/70 5/19/83 2/04/83 3/29/83 7/13/88 4/25/73 Stage (ft) 18.76 27.00 27.80 16.22 12.86 34.62 13.30 31.38 19.83 5.24 33.23 15.72 13.50 29.02 28.18 19.94 19.28 20.64 -- 23.10 28.07 27.45 19.87 .. Dis- charge (ft3/s) 25,400 93,900 120,000 1,620 2,040 64,200 2,060 30,000 5,180 527 21,600 30,300 8,420 85,200 67,500 11,300 10,700 6,660 11,900 7,000 33,100 15,900 13,600 5,000 18,800 10,200 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N Y Y N N N Y N Y Recur- rence interval (years) >100 75-100 >200 >100 >100 MOO MOO >200 10-25 5-10 10-25 50 25-50 50-75 20-25 10-20 10-15 10-15 -- 25-30 40-50 25-30 5-10 _. Significant Floods, 1970 Through 1989, Mississippi 317 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 07280270 07280340 07281000 07282000 07282300 07283000 07285000 07285100 07285700 07286010 07287165 07287170 07287520 07288500 07288568 07289000 07289100 07289180 07289330 07289350 07289395 07289470 Station name Tillatoba Creek below Oakland, MS South Fork Tillatoba Creek near Charleston, MS Tallahatchie River at Swan Lake, MS Yalobusha River at Calhoun City, MS Sabougla Creek tributary at Sabougla, MS Skuna River at Bruce, MS Yalobusha River at Grenada Dam near Grenada, MS Tie Plant Brook near Grenada, MS Long Creek near Cascilla, MS Brushy Creek tributary near Oxberry, MS Mosquito Lake tributary number 1 at Itta Bena, MS Mosquito Lake tributary number 2 at Itta Bena, MS Short Creek tributary near Yazoo City, MS Big Sunflower River at Sunflower, MS Quiver River near Schlater, MS Mississippi River at Vicksburg, MS Big Black River tributary near Eupora, MS Big Black River near Kilmichael, MS Zilpha Creek near Kosciusko, MS Big Black River at West, MS Sharkey Creek tributary near West, MS Tacketts Creek near Pickens, MS Total drainage area (mi2) 37.1 53.9 5,130 305 0.50 254 1,320 0.13 1.64 1.49 0.11 0.13 1.49 767 0.18 1,140,500 2.29 549 90.0 1,027 0.30 0.15 Period of record 1975-84 1976-88 1907, 1911, 1914-83 1949-93 1967-77 1948-93 1954-83 1955, 1966-77 1965-93 1965-77 1966-81, 1984 1966-78, 1981-84 1964-73 1936-83 1967-79 1858, 1885, 1897-98, 1903-04, 1906-07, 1909, 1912-13, 1916-17, 1920, 1922, 1927-88 1965-77 1937-60, 1962, 1964-83 1953-70, 1979 1927, 1930, 1937-93 1967-79, 1982-84 1965-84 Water year 1984 1975 1983 1933 1932 1983 1974 1955 1991 1983 1954 1974 1984 1974 1980 1981 1971 1973 1975 1978 1927 1929 1977 1983 1979 1983 1979 1982 1979 Stage (ft) 16.20 17.72 23.96 33.20 35.00 25.75 7.69 24.11 31.13 ~~ 6.23 12.70 8.31 6.46 5.00 10.06 28.37 5.97 6.43 55.10 8.13 18.10 28.70 26.08 9.53 7.07 7.90 Dis- charge (ft3/s) 9,200 5,820 11,900 49,200 30,000 70,100 401 61,400 35,700 8,850 3,790 205 1,860 1,320 121 110 1,130 15,000 41 2,278,000 1,730,000 1,200 50,000 21,600 71,200 300 222 Significant floods during 1970-89 Date (month/ day/year) 5/07/84 2/26/82 3/17/73 3/16/73 12/26/82 7/11/74 12/03/83 2/12/74 5/22/83 6/07/74 5/08/84 1/27/73 1/10/79 10/27/80 2/21/71 3/18/73 3/13/75 5/12/73 3/03/77 3/16/73 5/20/83 4/12/79 5/21/83 1/20/79 1/23/82 Stage (ft) 16.20 23.96 31.59 24.58 25.75 7.69 29.83 -- 6.23 12.70 8.31 6.46 5.00 10.06 28.37 5.97 8.13 17.53 18.10 28.70 26.08 9.53 7.07 Dis- charge (frVs) 9,200 11,900 44,900 52,100 70,100 401 39,400 6,510 8,850 205 1,860 1,320 121 110 1,130 15,000 41 1,962,000 1,200 38,000 50,000 21,600 71,200 300 222 Regu- lated during flood1 N N Y N N N N Y Y N N N N N N N N N N N N N N N N Recur- rence interval (years) 10-25 10-25 >200 10 30 25-50 10-15 -- 25-50 25-50 10-25 50-100 25-50 10 200 5-10 25 10-25 10-25 25-50 50-100 60-80 25-50 10 318 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Station number (fig. 46) 07289500 07289505 07289530 07289600 07289610 07289640 07289641 07289730 07290000 07290115 07290650 07290690 07290830 07290870 07290910 07291000 07291250 07291260 07291500 07292500 07294500 07295000 07373550 Station name Big Black River at Pickens, MS Big Cypress Creek near Vaughn, MS Doaks Creek near Canton, MS Tilda Bogue near Canton, MS Bachelor Creek at Canton, MS Panther Creek near Flora, MS Panther Creek tributary near Flora, MS Big Black River near Bentonia, MS Big Black River near Bovina, MS Unnamed creek near Bolton, MS Bayou Pierre near Willows, MS Clarks Creek near Pattison, MS Little Creek near Fayette, MS Coles Creek near Fayette, MS Spanish Bayou atNatchez, MS Homochitto River at Eddiceton, MS McCall Creek near Lucien, MS Beaver Run near McCall Creek, MS Homochitto River near Bude, MS Homochitto River at Rosetta, MS Homochitto River near Doloroso, MS Buffalo River near Woodville, MS Moores Branch near Woodville, MS Total drainage area (mi2) 1,493 89.3 161 24.4 3.85 0.26 0.07 2,340 2,812 3.10 654 75.0 1.71 257 2.59 181 60.8 2.61 399 787 1,120 180 0.21 Period of record 1892, 1927, 1930, 1937-83 1960-70, 1979 1948-51, 1953-70, 1973, 1979 1948-51, 1953-93 1953-70, 1973, 1975, 1979 1965-77, 1979 1964-85 1929-83 1936-93 1960-70, 1979 1959-93 1962-93 1967-93 1961-64, 1966-93 1966-77 1939-93 1953, 1955-70, 1972-81, 1983-93 1955, 1957-77 1942-50, 1961,1965, 1972-74 1949-93 1938, 1940-51, 1953-84 1942-93 1955, 1957-93 Water year 1983 1927 1979 1979 1953 1983 1975 1973 1973 1983 1930 1983 1979 1983 1980 1974 1974 1971 1974 1990 1974 1974 1974 1974 1949 1974 1953 1973 1973 Stage (ft) - 23.70 33.30 23.30 19.00 19.44 20.65 7.17 7.42 32.48 34.70 40.77 98.00 29.36 27.90 15.45 31.96 15.12 19.53 21.06 92.70 10.85 22.00 28.60 37.80 33.00 33.00 22.30 9.90 Dis- charge (It3/!) 72,000 58,900 16,000 39,000 8,800 -- 4,400 252 140 86,000 61,800 92,300 1,500 88,000 31,000 1,800 75,000 1,990 55,400 33,600 23,000 1,220 95,000 150,000 -- 148,000 -- 65,000 455 Significant floods during 1970-89 Date (month/ day/year) 4/13/79 SI-IK 4/13/79 4/13/79 8/01/75 7/31/75 3/10/73 3/10/73 4/--/79 SI-IK 4/16/79 5/24/83 4/12/79 4/13/80 4/07/83 5/08/78 4/12/80 4/12/74 4/12/74 5/11/78 10/12/70 4/13/74 5/07/78 4/06/83 4/13/74 4/13/74 4/14/74 4/13/74 2/06/71 4/14/74 3/25/73 4/22/79 3/24/73 2/01/83 Stage (ft) 23.60 - 33.30 23.30 19.16 20.65 7.17 7.42 31.81 32.48 40.56 40.77 98.00 28.16 29.36 27.46 27.90 15.45 31.96 31.39 15.12 19.53 17.52 16.43 92.70 10.85 22.00 28.60 31.50 33.00 22.30 22.02 9.90 9.19 Dis- charge (tf/s) 66,000 72,000 16,000 39,000 8,300 4,400 252 140 80,000 86,000 83,300 92,300 1,500 63,800 88,000 28,000 31,000 1,800 75,000 71,000 1,990 55,400 43,500 35,200 23,000 1,220 95,000 150,000 134,000 148,000 65,000 57,400 455 423 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) 40-50 50-75 >50 >100 40-50 >100 10-25 10-25 50-75 75-100 60-80 >100 10-25 25 5-100 >100 >100 50 100 50-100 25 >100 50 15-20 50 10-25 >100 15-20 10-25 25-50 100 25-50 50-100 25-50 Significant Floods, 1970 Through 1989, Mississippi 319 Table 25. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Mississippi Continued Maximum stage and discharge for period of record through 1993 Significant floods during 1970-89 Station number (fig. 46) 07375235 07376665 07376760 Station name Tangipahoa River tributary near McComb, MS Stock Pond Draw near Liberty, MS CRS Draw near Liberty, MS Total drainage area (mi2) 2.71 0.38 0.80 Period of record 1966-84 1955, 1965-77 1955, 1965-84 Water year 1973 1976 1975 Stage (ft) 10.23 8.26 11.81 Dis- charge (ft3/s) 1,460 443 993 Date (month/ day/year) 3/24/73 10/16/75 6/08/75 Stage (ft) 10.23 8.26 11.81 Dis- charge (ft9/*) 1,460 443 993 Regu- lated during flood1 N N N Recur- rence interval (years) 25-50 10-25 >100 1 Regulated during flood: N, no; Y, yes. 320 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Missouri Hydroclimatology Missouri is located in the continent's interior near the center of the United States. The Mississippi River forms the east border of the State. Due to the State's location, the climate in Missouri is temperate with moderate seasonality. Airmasses from the Gulf of Mexico supply the majority of the moisture. The Pacific Ocean is a secondary source of moisture both in the summer and winter. Continental polar airmasses from Canada can clash with Gulf of Mexico moisture at any time during the year. These clashes can produce intense snowstorms in winter, persistent rainstorms from stalled cyclonic systems, and severe thunder- storms in spring and summer months. Missouri receives the majority of its annual pre- cipitation during the spring and early summer months. Annual precipitation in southeastern Missouri aver- ages about 48 in., decreasing to approximately 34 in. in the northwest (Paulson and others, 1991). On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Missouri is dependent on drainage area and channel slope. For urban areas, runoff depends on drainage area and a basin development factor (an index of urban drainage improvements) or percentage of the drainage area that is impervious (Jennings and others, 1994). Significant Floods Throughout December 1982, widespread, exces- sive rainfall plagued southeastern Missouri. The resulting flood set record maximum stages and dis- charges. Discharges at several streamflow-gaging sta- tions had recurrence intervals of more than 100 years. Twenty-two percent of the streamflow-gaging stations in the State recorded significant discharges during this flood. The duration, magnitude, and the areal extent of the 1973 flood in the Mississippi River Basin was excessive. The flood began in the upper Mississippi River in early March from snowmelt and rainfall. Twelve percent of the streamflow-gaging stations in Missouri recorded significant discharges during this flood. The streamflow-gaging station on the Fox River at Wayland (station 05495000, fig. 47) recorded a maximum discharge of record. The flood on the Mis- sissippi River extended from Wisconsin to Louisiana, with maximum stages occurring during April 1973. The flood of September to October 1986 was caused by intense rainfall in central and western Mis- souri. Ten percent of the streamflow-gaging stations in the State had significant discharges. The location of streamflow-gaging stations in Mis- souri that had significant floods for 1970-89 is shown in figure 47 by station number. The specific data for each significant flood are listed in table 26. A signifi- cant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. References Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-4002, 196 p. Paulson, R.W., Chase, E.B., Roberts, R.S., and Moody, D.W., compilers, 1991, National water summary, 1988-89 Hydrologic events and floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, 591 p. Significant Floods, 1970 Through 1989, Missouri 321 I I Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' EXPLANATION 07058000 is Streamflow-gaging station and number g 2o 4Q 60 MILES 0 20 40 60 KILOMETERS Figure 47. Location of streamflow-gaging stations with significant floods during 1970-89 for Missouri. 322 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 26. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Missouri [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; --, not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig. 47) 05495000 05495100 05496000 05497000 05497500 05497700 05498000 05501000 05502300 05503000 05504700 05505000 05506500 05506800 05507500 05508000 05513600 05513650 05513700 05514500 06813000 06816000 06817500 06817700 Station name Fox River at Wayland, MO Big Branch tributary near Wayland, MO Wyaconda River above Canton, MO North Fabius River at Monticello, MO Middle Fabius River near Baring, MO Bridge Creek Branch near Baring, MO Middle Fabius River near Monticello, MO North River at Palmyra, MO Salt River at Hagers Grove, MO Oak Dale Branch near Emden, MO Bean Creek near Mexico, MO South Fork Salt River at Santa Fe, MO Middle Fork Salt River at Paris, MO Elk Fork Salt River near Madison, MO Salt River near Monroe City, MO Salt River near New London, MO Camp Creek near Elsberry, MO Hurricane Creek near Elsberry, MO Mams Slough Creek near Wellsville, MO Cuivre River near Troy, MO Tarkio River at Fairfax, MO Mill Creek at Oregon, MO Nodaway River near Burlington Junction, MO Nodaway River near Graham, MO Total drainage area (mi2) 400 0.70 393 452 185 2.38 393 373 365 2.64 3.02 295 356 200 2,230 2,480 1.50 3.06 5.08 903 508 4.90 1,240 1,380 Period of record 1922-94 1956-82 1922-72, 1976, 1978-92, 1994 1922-94 1931-82 1955-79 1946-94 1935-94 1975-92, 1994 1956-80 1960-79 1940-68, 1976-86 1940-94 1967, 1969-71, 1973-94 1928, 1940-80 1858, 1922-94 1955-79 1955-79 1955-57, 1961-79 1922-72, 1974-81, 1983-93 1922-70, 1972-90 1950-76 1922-83 1983-92, 1994 Water year 1973 1973 1933 1986 1973 1973 1970 1973 1973 1983 1973 1973 1983 1986 1973 1973 1973 1973 1977 1978 1974 1942 1942 1974 1974 1989 Stage (ft) 21.71 11.50 30.00 31.33 33.03 25.94 17.30 27.14 29.70 18.80 10.96 14.80 21.25 22.00 33.50 33.40 39.10 31.80 7.39 9.21 15.31 33.40 18.91 9.10 19.85 23.34 Dis- charge (ft3/s) 26,400 941 17,700 17,300 20,700 12,100 1,090 17,700 57,400 22,000 1,740 2,960 14,500 14,000 45,000 42,300 102,000 107,000 3,800 2,300 1,850 120,000 16,300 4,700 46,000 26,600 Significant floods during 1970-89 Date (month/ day/year) 4/22/73 4/22/73 9/22/86 4/22/73 4/22/73 7/05/82 8/08/70 4/23/73 4/21/73 12/03/82 4/03/83 4/20/73 5/30/74 7/24/73 5/02/83 1/20/85 4/21/73 4/21/73 4/22/73 4/22/73 7/29/81 5/07/77 5/12/78 5/30/74 12/03/82 8/30/82 5/18/74 10/11/73 9/10/89 Stage (ft) 21.71 11.50 31.33 33.03 25.94 25.80 17.30 27.14 29.70 26.11 18.80 10.96 9.66 14.80 21.25 22.00 33.50 33.40 39.10 31.80 31.09 7.39 9.21 15.31 31.28 24.75 9.10 19.85 23.34 Dis- charge (ft3/s) 26,400 941 17,300 20,700 12,100 12,000 1,090 17,700 57,400 34,500 22,000 1,740 1,390 2,960 14,500 14,000 45,000 42,300 102,000 107,000 74,200 3,800 2,300 1,850 89,200 14,300 4,700 46,000 26,600 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N Y N N N N N N N N Recur- rence interval (years) 75-100 20-30 10 15 10 10 5-10 15 >100 >100 20-30 25-35 10-20 >100 .. >100 >100 >100 100 100 20-30 10-25 >100 5 >100 25 - Significant Floods, 1970 Through 1989, Missouri 323 Table 26. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Missouri Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 47) 06818000 06818900 06819500 06820000 06821130 06821150 06821190 06893793 06893890 06894000 06896000 06897500 06902000 06904050 06904300 06904500 06905500 06906000 06906300 06906600 06908000 Station name Missouri River at St. Joseph, MO Platte River at Ravenwood, MO One Hundred and Two River at Maryville, MO White Cloud Creek near Maryville, MO First Creek near Nashua, MO Little Platte River at Smithville, MO Platte River at Sharps Station, MO Little Blue River below Longview dam site at Kansas City, MO East Fork Little Blue River near Blue Springs, MO Little Blue River near Lake City, MO Wakenda Creek at Carrollton, MO Grand River near Galla- tin, MO Grand River near Sumner, MO Chariton River at Livonia, MO Shoal Creek near Hartford, MO Chariton River at Novinger, MO Chariton River near Prairie Hill, MO Mussel Fork near Musselfork, MO East Fork Little Chariton River near Huntsville, MO Burge Branch near Arrow Rock, MO Blackwater River at Blue Lick, MO Total drainage area (mi2) 420,300 486 515 6.06 0.55 234 2,380 50.3 34.4 184 248 2,250 6,880 864 155 1,370 1,870 267 220 0.33 1,120 Period of record 1844, 1881, 1903, 1922-68, 1970-92, 1994 1922-23, 1929-32, 1959-81, 1983-89 1926, 1933-91 1949-71, 1973-78 1959-78, 1980 1965-92, 1994 1979-90, 1992, 1994 1967-92, 1994 1970-92, 1994 1948-92, 1994 1948-70, 1972-80, 1989 1909, 1922-94 1909, 1922-85, 1987-93 1976-94 1963-80 1917, 1922-52, 1955-94 1929-94 1949-51, 1963-89 1963-92, 1994 1960-73 1905, 1923-33, 1938-90, 1992 Water year 1952 1881 1989 1974 1974 1974 1965 1984 1982 1982 1982 1987 1993 1947 1982 1974 1917 1973 1981 1973 1973 1929 1987 Stage (ft) 26.82 27.20 21.50 19.25 14.58 18.84 44.80 34.55 21.24 22.14 27.06 26.60 41.50 39.50 28.33 22.70 28.60 21.96 22.47 20.78 9.27 41.25 41.53 Dis- charge (ft3/s) 397,000 370,000 16,500 28,000 7,200 1,250 76,600 29,000 18,700 11,000 42,300 13,100 89,800 180,000 9,200 8,100 27,000 31,900 23,800 30,000 276 54,000 44,800 Significant floods during 1970-89 Date (month/ day/year) 10/13/73 5/27/87 8/29/79 9/09/89 10/12/73 7/15/86 10/10/73 5/18/74 8/13/82 6/10/84 8/13/82 9/13/77 8/13/82 9/13/77 8/13/82 10/03/86 10/13/73 3/06/79 7/18/82 7/04/74 10/10/85 4/23/73 4/22/73 6/25/81 4/21/73 4/20/73 4/21/73 10/03/86 Stage (ft) 25.63 23.83 21.45 21.50 19.25 17.00 14.58 18.84 36.44 34.55 21.24 21.07 22.14 23.30 27.06 26.60 33.22 34.84 28.33 22.70 23.40 21.96 22.11 22.47 20.78 9.27 38.06 41.53 Dis- charge (tf/s) 200,000 207,000 16,500 16,500 28,000 16,800 7,200 1,250 21,000 29,000 18,700 18,100 11,000 17,000 42,300 13,100 57,400 119,000 9,200 8,100 18,600 31,900 23,100 23,800 30,000 276 35,300 44,800 Regu- lated during flood1 Y Y N N N N N N Y N N N Y N N N N N Y N Y Y N N Y N N N Recur- rence interval (years) - -- 5-10 5-10 25 5 >100 >100 _ - >100 >100 - 40 10 10 10 - .. -. 20-30 20-30 10 25 50 324 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 26. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Missouri Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 47) 06908500 06909500 06910000 06910230 06910500 06918460 06919000 06919020 06919500 06919900 06920800 06921200 06921590 06922600 06922700 06923000 06925200 06926200 06926800 06927000 06927800 06928700 Station name Shiloh Branch near Marshall, MO Moniteau Creek near Fayette, MO Petite Saline Creek near Booneville, MO Hinkson Creek at Columbia, MO Moreau River near Jefferson City, MO Turnback Creek above Greenfield, MO Sac River near Stockton, MO Sac River at Highway J below Stockton, MO Cedar Creek near Pleasant View, MO Sac River near Caplinger Mills, MO Big Muddy Creek at Lowry City, MO Lindley Creek near Polk, MO South Grand River at Archie, MO Little Turkey Creek tributary near Warsaw, MO Chub Creek near Lincoln, MO Niangua Branch at Marshfield, MO Starks Creek at Preston, MO Van Cleve Branch near Meta, MO Long Branch near Vienna, MO Maries River at Westphalia, MO Osage Fork Gasconade River at Drynob, MO Beeler Branch near Total drainage area (mi2) 2.87 81.0 182 70.2 561 252 1,160 1,292 420 1,810 0.31 112 256 0.18 2.86 0.82 4.18 0.75 0.32 257 404 7.78 Period of record 1953-65, 1968-73, 1975-80 1944, 1949-80 1921, 1949-67, 1970 1967-80, 1988-91 1948-80 1966-94 1896, 1909, 1922-89 1974-94 1909, 1923-26, 1943, 1949-94 1975-94 1955-79 1957-94 1970-86 1959-67, 1969, 1971-79 1958-79 1951-58, 1960-61, 1963-68, 1970, 1972-75, 1977-79 1957-80 1957-79 1957-58, 1960-68, 1970, 1972-79 1937, 1948-80 1963-80 1968-79 Water year 1973 1973 1944 1970 1979 1990 1985 1987 1993 1943 1993 1958 1909 1994 1973 1960 1987 1961 1986 1972 1973 1978 1977 1977 1970 1975 1970 1979 1972 Stage (ft) 10.39 22.23 22.90 25.16 19.62 19.77 30.61 23.74 26.34 31.80 23.71 27.35 27.70 30.95 9.45 10.08 23.32 23.60 21.25 12.12 21.56 22.12 8.76 10.78 7.85 10.82 21.31 17.96 8.90 Dis- charge (ft3/s) 1,160 13,700 -- 12,000 10,000 9,270 33,000 44,000 42,700 120,000 13,300 37,000- 61,500 210 180 31,900 28,000 24,200 230 970 920 605 2,200 1,870 450 27,300 21,300 4,700 Significant floods during 1970-89 Date (month/ day/year) 4/21/73 4/20/73 5/15/70 4/1 1/79 12/03/82 2/22/85 10/01/86 3/04/75 2/23/85 10/01/86 10/02/86 4/20/79 10/01/86 9/30/86 4/14/72 4/21/73 6/20/77 9/26/77 4/23/70 4/24/75 6/05/73 12/03/82 4/12/79 4/15/72 Stage (ft) 10.39 22.23 25.16 19.62 29.83 30.61 23.74 16.54 23.51 27.28 30.00 9.45 23.32 21.25 12.12 21.56 8.76 10.78 7.85 10.82 20.12 21.31 17.96 8.90 Dis- charge (frVs) 1,160 13,700 12,000 10,000 30,000 33,000 30,500 9,020 10,100 36,300 60,000 210 31,900 24,200 230 970 605 2,200 1,870 450 24,400 27,300 21,300 4,700 Regu- lated during flood1 N N N N N N N N Y Y N Y N N N N N N N N N N N N N Recur- rence interval (years) 5-10 50-60 10-25 15 20 25-50 100 - - 50 - 5 100 20-30 10 .. 10 50 >100 20-30 15-20 20-25 5-10 -- Cabool, MO Significant Floods, 1970 Through 1989, Missouri 325 Table 26. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Missouri Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 47) 06930750 06931000 06931500 06931600 06932000 06933500 06933700 06934500 06934600 06935800 07010000 0701 1200 07012000 07013000 07014500 07015000 07015720 07016000 07016500 07018500 07019000 Station name Prewett Hollow near Dixon, MO Beaver Creek near Rolla, MO Little Beaver Creek near Rolla, MO Paulsell Branch near Rolla, MO Little Piney Creek at Newburg, MO Gasconade River at Jerome, MO Penzer Hollow near Rolla, MO Missouri River at Hermann, MO Rumbo Branch at Danville, MO Shotwell Creek at Highway 340 near Ellisville, MO Mississippi River at St. Louis, MO Love Creek near Salem, MO Behmke Branch near Rolla, MO Meramec River near Steelville, MO Meramec River near Sullivan, MO Bourbeuse River near St. James, MO Bourbeuse River near High Gate, MO Bourbeuse River near Spring Bluff, MO Bourbeuse River at Union, MO Big River at Byrnesville, MO Meramec River near Eureka, MO Total drainage area (mi2) 0.46 13.7 6.41 2.33 200 2,840 0.27 524,200 1.40 0.81 97,000 0.89 1.05 781 1,480 21.3 135 608 808 917 3,790 Period of record 1960-64, 1966-79 1949-58, 1960-79 1945, 1948-79 1949-79 1915, 1929-94 1897, 1904-05, 1915, 1923-92, 1994 1956-58, 1960-70, 1972-79 1844, 1903, 1929-94 1953-79 1960-79 1844, 1861-1987, 1989-94 1955-58, 1960-66, 1969-70, 1972-82 1949-79 1915, 1917-94 1915, 1922-33, 1944-93 1948-80 1965-94 1915, 1944-79 1897, 1915-94 1915, 1923-88, 1990, 1992-94 1904-05, 1915-16, 1922-90, 1992-93 Water year 1970 1979 1958 1979 1946 1915 1983 1970 1844 1993 1970 1970 1844 1993 1979 1979 1915 1915 1979 1983 1915 1983 1915 1915 1983 Stage (ft) 16.30 9.50 8.57 7.00 16.20 16.70 31.34 18.61 35.50 36.97 11.40 23.16 41.32 49.58 7.13 5.59 26.50 33.50 11.17 23.65 35.70 33.80 30.20 40.20 42.89 Dis- charge (fttys) 752 12,000 7,420 10,000 32,500 30,000 136,000 280 892,000 750,000 1,090 1,030 1,300,000 1,070,000 365 4,000 60,000 90,000 8,390 49,300 60,000 73,300 80,000 175,000 145,000 Significant floods during 1970-89 Date (month/ day/year) 6/14/70 1 1/24/73 7/28/79 4/1 1/79 4/11/79 2/03/82 2/05/82 4/30/70 10/05/86 6/13/70 8/09/70 4/28/73 2/07/82 4/1 1/79 2/22/79 2/04/82 6/18/85 12/04/82 4/1 1/79 4/11/79 12/03/82 4/12/79 12/05/82 11/21/85 12/06/82 Stage (ft) 16.30 5.95 9.50 7.65 7.00 16.11 31.34 18.61 35.79 11.40 23.16 43.23 - 7.13 5.59 25.59 26.15 32.22 11.17 21.15 23.65 32.00 33.80 26.47 42.89 Dis- charge (ft3/s) 752 5,100 12,000 5,150 10,000 29,300 136,000 280 549,000 1,090 1,030 852,000 739,000 365 4,000 49,300 51,200 67,700 8,390 33,500 49,300 36,000 73,300 43,000 145,000 Regu- lated during flood1 N N N N N N N N Y N N Y Y N N N N N N N N N N N N Recur- rence interval (years) 50-100 20-30 >100 50-100 >100 30-35 50 5-10 - 40-50 - - 20-30 >100 15-20 15-20 50 40-50 25-50 >100 20-30 >100 15-20 20-25 326 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 26. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during t970-89 in Missouri Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 47) 07021000 07037500 07041000 07042000 07042500 07043000 07043500 07046000 07050580 07052160 07052700 07054300 07057500 07058000 07061300 07061500 07062500 07063000 07064500 07066000 07067000 07068000 07068500 07071500 Station name Castor River at Zalma, MO St. Francis River near Patterson, MO Little River Ditch 81 near Kennett, MO Little River Ditch 1 near Kennett, MO Little River Ditch 25 1 near Lilbourn, MO Castor River at Aquilla, MO Little River Ditch 1 near Morehouse, MO Little River Ditch 259 near Kennett, MO James River near Strafford, MO Wilsons Creek near Battlefield, MO Brawley Hollow near Cassville, MO Gray Branch at Lutie, MO North Fork River near Tecumseh, MO Bryant Creek near Tecumseh, MO East Fork Black River at Lesterville, MO Black River near Annapolis, MO Black River at Leeper, MO Black River at Poplar Bluff, MO Big Creek near Yukon, MO Jacks Fork at Eminence, MO Current River at Van Buren, MO Current River at Doniphan, MO Little Black River near Fairdealing, MO Eleven Point River near Bardley, MO Total drainage area (mi2) 423 956 111 235 235 175 450 89.0 165 55.0 2.61 0.23 561 570 94.5 484 987 1,250 8.36 398 1,670 2,040 187 793 Period of record 1915, 1920-91 1915, 1921-75, 1977-94 1927-79 1927-79 1945-91 1945-80 1945-91 1927-79 1974-86 1969-70, 1973-80 1960-79 1955-69, 1971, 1973-79 1945-94 1945-85 1961-90 1939-94 1904, 1915, 1922-94 1904, 1923-94 1950-79 1895, 1904, 1922-94 1904, 1913-91, 1993-94 1904, 1915, 1919-94 1940-42, 1955-79 1915, 1922-94 Water year 1983 1935 1983 1979 1973 1975 1977 1964 1989 1927 1977 1979 1975 1973 1986 1983 1986 1994 1904 1904 1983 1971 1994 1895 1915 1904 1983 1977 1983 Stage (ft) 29.92 28.20 35.77 10.15 14.55 14.17 15.67 15.71 19.50 15.57 18.90 14.03 19.25 15.42 28.10 26.74 12.53 27.38 22.30 .. 21.68 5.54 17.82 25.00 25.90 24.90 25.49 23.63 21.64 Dis- charge (ft3/s) 97,100 40,000 155,000 3,280 7,900 6,580 7,510 5,900 12,200 4,140 24,900 7,240 960 335 133,000 71,100 35,800 109,000 125,000 100,000 65,600 5,520 58,500 -- 125,000 130,000 122,000 52,800 49,800 Significant floods during 1970-89 Date (month/ day/year) 12/04/82 3/31/85 12/03/82 4/23/73 3/28/75 4/02/79 4/23/73 4/03/79 3/29/75 4/02/79 3/28/77 3/31/85 2/15/89 4/24/73 3/29/75 9/27/77 5/20/79 11/03/74 7/24/73 2/23/85 11/19/85 3/11/73 12/03/82 11/02/72 11/19/85 11/19/85 12/03/82 3/28/77 12/04/82 10/27/70 4/15/72 4/30/83 2/23/85 11/19/85 12/03/82 12/03/82 3/27/77 12/03/82 12/03/82 Stage (ft) 29.92 27.85 35.77 9.83 9.70 10.15 14.55 14.40 14.17 14.43 15.67 18.42 19.50 11.91 12.05 18.90 14.03 19.25 15.42 26.28 28.10 21.93 26.74 11.13 12.53 25.81 15.15 20.17 21.68 5.54 6.38 17.03 17.15 17.58 23.89 25.49 23.63 -- 21.64 Dis- charge (ft3/*) 97,100 52,600 155,000 3,090 3,030 3,280 7,900 7,700 6,580 6,090 7,510 11,200 12,200 3,680 3,760 24,900 7,240 960 335 108,000 133,000 33,200 71,100 10,400 35,800 98,500 40,900 21,700 65,600 5,520 5,470 50,300 51,500 55,800 89,200 122,000 52,800 54,200 49,800 Regu- lated during flood1 N N N N N N N N N N N N N N N N N N N N N N N N Y Y Y Y Y N N N N N N N N N N Recur- rence interval (years) >100 50-60 >100 10 10 15-20 25 25 25-30 20-25 75-100 75-100 75-100 25-30 30-35 25-50 - 5-10 10 >100 >100 5-10 100 5 >100 >100 - .. -- 50-100 50-100 50-75 50-75 75-100 20-25 40-50 >100 >100 50-75 Significant Floods, 1970 Through 1989, Missouri 327 Table 26. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Missouri Continued Total Station drainage number area (fig. 47) Station name (mi2) Maximum stage and discharge for period of record through 1994 Dis- Periodof Water Stage charge record year (ft) (ft^s) Significant floods during 1970-89 Regu- Recur- Date Dis- lated rence (month/ Stage charge during interval day/year) (ft) (ft^s) flood1 (years) 07071800 07185600 07185700 Williams Spring Branch near Alton, MO South Fork Stahl Creek near Miller, MO Spring River at Larussell, 4.24 1955-57, 1973 16.21 1,800 1959-61, 1963-64, 1966, 1968-70, 1972-79 0.94 1951-52, 1973 7.52 1,000 1954-61, 1963-79 306 1958-80 1973 17.58 22,500 5/26/73 16.21 1,800 N 10 11/01/72 7.52 1,000 N 50-75 11/01/72 17.58 22,500 N 10 MO 07185765 Spring River at Carthage, 425 1967-80 1973 17.15 24,800 MO 07185900 O'Possum Creek at Jasper, 9.67 1955-77 1976 15.82 3,290 MO 11/01/72 17.15 24,800 N 5-10 7/03/76 15.82 3,290 N 25-50 07186000 Spring River near Waco, 1,161 MO 07186400 Center Creek near Carterville, MO 232 1923-94 1963-81, 1983-91 1993 34.06 151,000 1976 17.68 36,300 2/24/85 28.80 10/02/86 28.39 7/03/76 17.68 69,700 64,800 36,300 15-20 15-20 50-100 1 Regulated during flood: N, no; Y, yes. 328 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Montana Significant Floods Hydroclimatology Montana is located in the northwestern part of the United States, and its climate is controlled by the topo- graphic features in the State. The western and south- central regions of Montana are characterized by rug- ged mountains and intermontane valleys. The eastern and north-central areas of the State are characterized by plains and small mountains. In the mountainous regions of the State, winter and summer climates are regulated by maritime airmasses that bring moisture from the Pacific Ocean. The climate in the plains region is dominated by dry, polar continental or arctic airmasses in the winter and by moist airmasses from the Gulf of Mexico or the Pacific Ocean during the summer. Mean annual precipitation ranges from an arid 6 in. in the south-central part of Montana to 100 in. in the mountainous northwest. The majority of precipita- tion in the mountainous parts of the State falls as snow during the winter. Rain from large-scale frontal sys- tems in May and June together with snowmelt are gen- erally the cause of floods in this region. In the eastern and north-central areas of Montana, spring and sum- mer thunderstorms often produce large floods, particu- larly on small streams. On the basis of regionalization procedures that relate flood characteristics to watershed and climatic characteristics, the magnitude of maximum discharges for streams in Montana depends on drainage area; mean annual precipitation; basin high elevation, which is the percentage of the total basin area above 6,000 ft; and mean basin elevation. The regression equations apply to unregulated streams having drainage areas ranging from 0.04 to 2,554 mi2 but are not valid where unique topographic or geologic features affect floods (Jennings and others, 1994). The most severe and widespread flooding in Mon- tana for 1970-89 occurred in 1975 along the eastern edge of the Rocky Mountains in north-central Mon- tana, in 1978 in the southeastern part of the State, in 1981 in east-central Montana, and in 1986 in the northeastern part of the State. The flooding in 1975 was the result of intense rainfall on already saturated soils combined with high-elevation snowmelt runoff. Flooding throughout the area was generally greater than the 50-year recurrence interval. Intense rainfall in May 1978 produced record flooding on many streams in southeastern Montana. Maximum discharges of record were recorded at 25 streamflow-gaging sta- tions. The floods of May 1981 were the result of large rainfall and snowmelt primarily in small-stream basins in the upper Missouri River Basin in east-central Mon- tana. Flooding in September 1986 in northeastern Montana occurred as a result of excessive rainfall of as much as 10 in. in 18 hours. Many streams in the Milk River Basin had record maximum discharges. The location of streamflow-gaging stations in Montana that had significant floods for 1970-89 is shown in figure 48 by station number. The specific data for each significant flood are listed in table 27. A significant flood is one that ranks in the top 5 percent of all annual maximum discharges for that station's period of record. Reference Jennings, M.E., Thomas, W.O., Jr., and Riggs, H.C., 1994, Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites: U.S. Geo- logical Survey Water-Resources Investigations Report 94-^002, 196 p. Significant Floods, 1970 Through 1989, Montana 329 COi Si (D C 3 I CO 0) TJ (D 33 8 0) a (D< «3 o ta <o oo <o Base from U.S. Geological Survey digital data, 1:2,000,000,1994 Albers Equal-Area Conic projection Standard parallels 29°30' and 45°30', central meridian -96°00' T 2Q 40 60 80M r-h H -, l ' 20 40 60 80 KILOMETERS Figure 48. Location EXPLANATION Rocky Mountains 06109900 El Streamflow-gaging station and number ion of streamflow-gaging stations with significant flooding during 1970-89 for Montana. Table 27. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Montana [mi2, square miles; ft, feet above an arbitrary datum; ft3/s, cubic feet per second; , not determined or not applicable; >, greater than; <, less than. Source: Recurrence intervals calculated from U.S. Geological Survey data. Other data from U.S. Geological Survey reports or data bases] Maximum stage and discharge for period of record through 1994 Station number (fig- 48) 05014000 05014500 05016000 05017500 06011400 06012500 06013200 06013500 06015430 06016000 06017500 06018000 06018500 06019500 06020600 06024500 06024590 06025100 06025500 06026000 06027700 06029000 06030200 Station name Grinnell Creek near Many Glacier, MT Swiftcurrent Creek at Many Glacier, MT Swiftcurrent Creek at Sherburne, MT St. Mary River near Babb, MT Long Creek near Lakeview, MT Red Rock River below Lima Reservoir near Monida, MT Traux Creek near Lima, MT Big Sheep Creek below Muddy Creek near Dell, MT Clark Canyon near Dillon, MT Beaverhead River at Barrens, MT Blacktail Deer Creek near Dillon, MT Beaverhead River near Dillon, MT Beaverhead River near Twin Bridges, MT Ruby River above reservoir near Alder, MT Ruby River below reservoir near Alder, MT Trail Creek near Wisdom, MT Wise River near Wise River, MT Quartz Hill Gulch near Wise River, MT Big Hole River near Melrose, MT Birch Creek near Glen, MT Fish Creek near Silver Star, MT Whitetail Creek near Whitehall, MT Jefferson River tributary near Whitehall, MT Total drainage area (mi2) 3.32 31.4 64.6 276 36.0 570 4.06 278 18.0 2,737 312 3,484 3,619 538 596 71.4 214 14.3 2,476 36.0 38.9 30.8 1.85 Period of record 1950-78 1913-87, 1989-94 1913-71, 1973-94 1902, 1911-25, 1951-94 1960-67, 1969, 1984 1912-18, 1926-69, 1974-82, 1985-94 1960-74, 1984 1946-53, 1960-91 1969, 1974-94 1908-94 1946-53, 1955-66, 1984 1951-52, 1964-70, 1972-83 1936-44, 1946-94 1939-94 1963-94 1948-53, 1967-72 1973-85 1974-94 1924-40, 1942-94 1946-53, 1955-76 1959-91 1950-53, 1955-68, 1981 1960-75 Water year 1975 1964 1969 1964 1984 1933 1984 1984 1984 1908 1984 1964 1984 1984 1984 1972 1974 1980 1927 1972 1975 1978 1981 1975 Stage (ft) 4.90 10.00 7.63 12.96 - 5.40 7.87 7.10 6.10 4.86 5.52 7.88 6.24 8.52 6.64 8.43 2.40 - 8.04 5.21 1.97 4.40 3.09 Dis- charge (ft3/s) 540 6,700 2,420 16,500 1,850 2,500 40 1,400 415 3,720 910 1,570 2,200 3,810 3,010 1,350 2,730 102 23,000 14,300 427 250 142 107 Significant floods during 1970-89 Date (month/ day/year) 6/19/75 6/20/75 6/21/75 6/21/75 5/-/S4 5/30/88 4/18/84 5/17/84 5/17/84 6/20/75 6/22/84 5/17/84 5/20/76 6/25/84 6/10/70 5/16/84 5/16/84 6/10/70 6/02/72 6/16/74 9/11/80 6/10/72 7/05/75 6/19/75 3/31/78 5/22/81 7/31/75 Stage (ft) 4.90 7.92 7.75 11.65 - 4.00 7.87 7.10 3.59 5.04 4.86 4.70 7.88 5.62 6.24 8.52 5.37 6.64 8.43 2.40 8.04 5.21 1.91 1.97 4.40 3.09 Dis- charge (ft3/s) 540 3,310 2,280 13,600 1,850 844 40 1,400 415 1,680 3,000 910 1,050 2,200 1,670 3,810 3,010 1,610 1,350 2,730 102 14,300 427 240 250 142 107 Regu- lated during flood1 N N Y Y N Y N N N Y Y N Y Y N N Y Y N N N N Y N N N N Recur- rence interval (years) 50-100 50 - - >100 .. 5-10 >100 >100 - ~ >100 - - 10-25 >100 -- 100 25 25 25 - 25 25 25 - Significant Floods, 1970 Through 1989, Montana 331 Table 27. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Montana Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 48) 06030500 06031950 06033000 06035000 06036600 06036650 06036700 06037500 06038500 06038550 06040000 06040300 06041000 06043200 06043300 06043500 06046500 06046700 06047000 06048000 06048500 Station name Boulder River above Rock Creek near Basin, MT Cataract Creek near Basin, MT Boulder River near Boulder, MT Willow Creek near Harrison, MT Jefferson River tributary number 4 near Three Forks, MT Jefferson River near Three Forks, MT Jefferson River tributary number 5 near Three Forks, MT Madison River near West Yellowstone, MT Madison River below Hebgen Lake near Grayling, MT Cabin Creek near West Yellowstone, MT Madison River near Cameron, MT Jack Creek near Ennis, MT Madison River below Ennislake near McAllister, MT Squaw Creek near Gallatin Gateway, MT Logger Creek near Galla- tin Gateway, MT Gallatin River near Galla- tin Gateway, MT Rocky Creek near Bozeman, MT Pitcher Creek near Bozeman, MT Bear Canyon near Bozeman, MT East Gallatin River at Bozeman, MT Bridger Creek near Bozeman, MT Total drainage area (mi2) 23.9 30.6 381 83.8 0.53 9,532 3.69 420 905 30.3 1,669 51.5 2,186 40.4 2.48 825 50.5 2.33 17.0 148 62.5 Period of Water Stage record year (ft) 1947-53, 1981 5.31 1955-57, 1975, 1981 1973-94 1981 6.88 1929-32, 1981 12.30 1934-72, 1975, 1981, 1985-94 1938-94 1963 4.24 1960-74, 1982 7.87 1982-83 1979-94 1981 8.06 1960-73, 1982 7.21 1980, 1982-83 1914-17, 1986 3.56 1919-73, 1984-86, 1989-94 1940-67, 1959 5.30 1969-94 1974-94 1974 4.00 1952-58, 1970 5.31 1960-63, 1968-70 1974-86, 1974 3.97 1991-92 1943-94 1970 8.01 1959-75 1970 2.25 1959-94 1981 2.22 1890-94, 1974 7.38 1931-81, 1985-94 1952-53, 1971 3.11 1959-91 1960-75, 1981 4.45 1981 1952-53, 1981 1959-73, 1975, 1981 1940-61, 1981 1981 1946-69, 1981 7.11 1971-72, 1981, 1987 Dis- charge (ft3/s) 1,020 3,150 7,000 813 320 15,900 578 2,340 10,200 1,500 8,830 555 9,550 690 92 9,100 1,230 142 489 2,460 1,140 Significant floods during 1970-89 Date (month/ day/year) 5/22/81 5/22/81 6/19/75 5/22/81 6/19/75 6/13/82 5/24/81 6/13/82 5/31/86 6/10/70 -/-/74 6/11/70 6/14/74 6/12/70 6/28/71 5/09/70 5/22/81 5/14/84 6/09/70 6/27/71 6/17/74 4/24/71 5/22/81 5/22/81 5/22/81 5/22/81 5/22/81 Stage («) 5.31 6.88 10.90 12.30 3.47 7.87 8.06 7.21 3.56 3.76 4.00 5.31 3.97 8.01 7.92 2.25 2.22 1.20 6.48 6.49 7.38 3.11 4.90 4.45 - 7.11 Dis- charge (ft3/s) 1,020 3,150 3,500 7,000 566 320 15,900 578 2,340 5,170 1,500 8,830 555 9,550 8,730 690 92 47 7,600 7,610 9,100 1,230 1,140 142 489 2,460 1,140 Regu- lated during flood1 N N N N N N N N N Y N Y N Y Y N N N N N N N N N N N N Recur- rence interval (years) 100 >100 25-50 >100 25 >100 - >100 - >100 .. 25 - - 25-50 >100 10-25 10 10 50 50-100 50 50-100 25-50 >100 50-100 332 Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1970 Through 1989 Table 27. Maximum stage and discharge for period of record for streamflow-gaging stations ha\ 1970-89 in Montana Continued Maximum stage and discharge for period of record through 1994 Station number (fig. 48) 06050000 06052500 06053050 06054500 06055500 06056200 06056300 06056600 06058700 06061500 06061800 06061900 06062500 06062700 06063000 06071200 06071600 06073000 06073600 06075600 Station name Hyalite Creek at Hyalite River South near Bozeman, MT Gallatin River at Logan, MT Lost Creek near Ringling, MT Missouri River at Toston, MT Crow Creek near Radersburg, MT Castle Creek tributary near Ringling, MT Cabin Creek near Townsend, MT Deep Creek below North Fork Deep Creek near Townsend, MT Mitchell Gulch near East Helena, MT Prickly Pear Creek near Clancy, MT Crystal Creek near East Helena, MT McClellan Creek near East Helena, MT Tenmile Creek near Rimini, MT Little Porcupine Creek tributary near Helena, MT Tenmile Creek near Helena, MT Lyons Creek near Wolf Creek, MT Wegner Creek at Craig, MT Dearborn River near demons, MT Black Rock Creek near Augusta, MT Fivemile Creek near White Sulphur Springs, MT Total drainage area (mi2) 48.2 1,795 9.59 14,669 76.6 2.51 11.8 87.7 8.09 192 3.77 33.2 32.7 0.39 102 29.9 35.7 123 5.54 6.42 Period of Water record year 1898-99, 1898 1902, 1935-94 1895-1900, 1899 1902-05, 1929-33, 1935-94 1974-94 1974 1890, 1948 1910-16, 1941-94 1901, 1981 1920-29, 1966-72, 1975,1981, 1989-90 1960-74, 1970 1981, 1989-90 1960-94 1960 1959-73, 1981 1975, 1981, 1989-90 1959-94 1986 1911-16, 1981 1923-33, 1946-53, 1955-69, 1975, 1979-94 1961-75, 1975 1981, 1989-90 1960-75, 1981 1981, 1989-90 1915-94 1981 1959-73, 1981 1981, 1989 1909-54, 1981 1975, 1981 1959-73, 1975 1975 1960-91 1966 1921-23, 1964 1929-53, 1964, 1975 1974-94 1989 1960-74 1970 Stage (ft) - - 3.46 11.77 8.14 3.70 2.00 5.10 1.76 8.82 3.33 6.20 - 4.16 4.64 9.15 8.71 3.36 Dis- charge (ft3/s) 956 9,840 297 32,000 3,640 47 70 740 195 2,300 80 1,730 3,290 20 3,770 580 1,020 17,400 555 52 /ing signilficant floods durii Significant floods during 1970-89 Date (month/ day/year) 5/22/81 6/10/70 6/28/71 6/18/74 1/16/74 6/10/70 5/22/81 5/19/70 5/17/75 5/22/81 9/07/73 2/25/86 6/19/75 5/22/81 6/19/75 5/22/81 6/19/75 5/22/81 5/22/81 6/19/75 5/22/81 5/07/75 5/07/75 6/19/75 3/13/89 5/04/70 Stage (ft) 3.70 9.03 8.74 9.02 3.46 11.16 8.14 3.70 1.66 5.10 0.51 1.76 6.56 8.82 3.33 - 4.89 6.20 - -- 4.16 3.15 - 8.71 3.36 Dis- charge (ft3/s) 948 9,390 8,480 9,170 297 28,200 3,640 47 50 740 139 195 1,200 2,300 80 1,730 995 3,290 20 1,360 3,770 580 640 17,000 555 52 Regu- lated during flood1 Y N N N N N N N N N N N N N N N N N N N N N N N N N Recur- rence interval (years) -- 25-50 10-25 25 10-25 10 >100 10-25 10 50-100 10-25 25 50 >100 25 >100 10-25 >100 25-50 25 >100 10-25 10-25 >100 10-25 25 Significant Floods, 1970 Through 1989, Montana 333 Table 27. Maximum stage and discharge for period of record for streamflow-gaging stations having significant floods during 1970-89 in Montana Continued Maximum stage and discharge for period of record through 1994 Station number (fig. …