USVI Public Records

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Change Analysis of Change Analysis of The U.S.V.I The U.S.V.I’s New FIRM Maps s New FIRM Maps Alexis Doward & Loren Lewis Alexis Doward & Loren Lewis of of Department of Planning And Natural Resources Department of Planning And Natural Resources Office of Building Permits, Office of Building Permits, Flood Plain Coordinators Flood Plain Coordinators Map Modernization Plan Map Modernization Plan ►In 2004 the USVI In 2004 the USVI participated in participated in FEMA FEMA’s Multi s Multi- Hazard Flood Map Hazard Flood Map Modernization Modernization Program. Program. ►At the request of At the request of DPNR, FEMA DPNR, FEMA entered the entered the Territory into the Territory into the Map Modernization Map Modernization Program. Program. Why is map revision needed? Why is map revision needed? ►There has been several recent flooding disasters in There has been several recent flooding disasters in the USVI: the USVI: Hurricane Hugo in 1989 Hurricane Hugo in 1989 Hurricane Andrew in 1992 Hurricane Andrew in 1992 Hurricane Marilyn in 1995 Hurricane Marilyn in 1995 Hurricane Lenny in 1999 Hurricane Lenny in 1999 ►All of these disasters have shown the importance All of these disasters have shown the importance of the FEMA Flood Insurance Maps (FIRM) and of the FEMA Flood Insurance Maps (FIRM) and Flood Insurance Studies (FIS) in both responding Flood Insurance Studies (FIS) in both responding to disaster and flood mitigation. to disaster and flood mitigation. ►Plan Reviewers at Plan Reviewers at DPNR realized, the DPNR realized, the flood maps that the flood maps that the are in use by the are in use by the Territory in managing Territory in managing its flood plains, are its flood plains, are outdated and don outdated and don’t t accurately depict flood accurately depict flood conditions. conditions. ►Several areas identified Several areas identified on the maps as flood on the maps as flood hazard areas are not hazard areas are not affected by flooding affected by flooding were as, areas that were as, areas that were not located in the were not located in the flood plain needed to flood plain needed to be included. be included. ►Coastal High Hazard Coastal High Hazard Areas vulnerable to Areas vulnerable to storm serge do not storm serge do not have accurate BFEs have accurate BFEs (Base Flood (Base Flood Elevations). Elevations). Realizing This Realizing This ►The Territory was entered into a 5 year plan The Territory was entered into a 5 year plan to: to: 1. Study the Flood Plains of the 1. Study the Flood Plains of the Territory. Territory. 2. Remap the Territory 2. Remap the Territory’s Flood Plains. s Flood Plains. 3. Adopt New Flood Maps 3. Adopt New Flood Maps 4. Publish and Distribute New Maps 4. Publish and Distribute New Maps ►2005 2005 – 2006 Draft 2006 Draft Maps were created Maps were created including the new including the new flood information and flood information and aerial photography. aerial photography. ►Maps were also Maps were also created in digital created in digital format using the format using the mapping database mapping database software structure software structure called GIS called GIS (Geographic (Geographic Information Information System). System). ►2006 Maps in Hard 2006 Maps in Hard Copy and in Digital Copy and in Digital format was delivered format was delivered to the Territory for to the Territory for Public Review and Public Review and Comment period. Comment period. ►Once receiving the Once receiving the new maps, the hard new maps, the hard copy maps were copy maps were reviewed and analyzed reviewed and analyzed for accuracy. for accuracy. ►On the digital GIS On the digital GIS Data a Change Data a Change Analysis was Analysis was conducted to conducted to identify how many identify how many lots were affected lots were affected by the change. by the change. Results of Change Analysis. Results of Change Analysis. ►Once reviewers analyzed the result, it was Once reviewers analyzed the result, it was clear that there was a significant reduction clear that there was a significant reduction of the number of plots located in the of the number of plots located in the Territory Territory’s Flood Plains. s Flood Plains. U.S.V.I. U.S.V.I. U.S.V.I. U.S.V.I. 11258 11258 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 6306 6306 Total lots that were in flood and are now out of flood Total lots that were in flood and are now out of flood 1184 1184 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 39435 39435 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 40619 40619 Total Lots not in Flood Total Lots not in Flood 17564 17564 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 45741 45741 Total Lots not in Flood Total Lots not in Flood 12442 12442 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 58183 58183 Lots Per Area Lots Per Area St.Croix District St.Croix District St.Croix District St.Croix District 6372 6372 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 3389 3389 Total lots that were in flood and are now out of flood Total lots that were in flood and are now out of flood 618 618 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 21340 21340 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 21958 21958 Total Lots not in Flood Total Lots not in Flood 9761 9761 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 24729 24729 Total Lots not in Flood Total Lots not in Flood 6990 6990 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 31719 31719 Lots Per Area Lots Per Area St.Croix Western District St.Croix Western District St.Croix Western District St.Croix Western District 2129 2129 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 1744 1744 Total lots that were in flood and are now out of flood Total lots that were in flood and are now out of flood 192 192 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 7746 7746 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 7938 7938 Total Lots not in Flood Total Lots not in Flood 3873 3873 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 9490 9490 Total Lots not in Flood Total Lots not in Flood 2321 2321 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 11811 11811 Lots Per Area Lots Per Area St.Croix Central District St.Croix Central District St.Croix Central District St.Croix Central District 2363 2363 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 1333 1333 Total lots that were in flood and are now out of flood Total lots that were in flood and are now out of flood 232 232 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 8245 8245 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 8477 8477 Total Lots not in Flood Total Lots not in Flood 3696 3696 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 9578 9578 Total Lots not in Flood Total Lots not in Flood 2595 2595 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 12173 12173 Lots Per Area Lots Per Area St.Croix Eastern District St.Croix Eastern District St.Croix Eastern District St.Croix Eastern District 1880 1880 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 312 312 Total lots that were in flood and are now out of flood Total lots that were in flood and are now out of flood 194 194 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 5349 5349 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 5543 5543 Total Lots not in Flood Total Lots not in Flood 2192 2192 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 5661 5661 Total Lots not in Flood Total Lots not in Flood 2074 2074 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 7735 7735 Lots Per Area Lots Per Area St. Thomas District St. Thomas District St. Thomas District St. Thomas District 4152 4152 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 2582 2582 Total lots that were in flood and are now out of flood Total lots that were in flood and are now out of flood 433 433 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 15135 15135 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 15568 15568 Total Lots not in Flood Total Lots not in Flood 6734 6734 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 17717 17717 Total Lots not in Flood Total Lots not in Flood 4585 4585 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 22302 22302 Lots Per Area Lots Per Area St. Thomas Western District St. Thomas Western District St. Thomas Western District St. Thomas Western District 246 246 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 57 57 Total lots that were in flood and are now out of Total lots that were in flood and are now out of flood flood 29 29 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 1746 1746 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 1775 1775 Total Lots not in Flood Total Lots not in Flood 303 303 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 1803 1803 Total Lots not in Flood Total Lots not in Flood 275 275 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 2078 2078 Lots Per Area Lots Per Area St. Thomas Central District St. Thomas Central District St. Thomas Central District St. Thomas Central District 2009 2009 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 1921 1921 Total lots that were in flood and are now out of Total lots that were in flood and are now out of flood flood 146 146 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 7284 7284 Total Lots Not in Flood and Remained Not in Total Lots Not in Flood and Remained Not in Flood Flood 7430 7430 Total Lots not in Flood Total Lots not in Flood 3930 3930 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 9205 9205 Total Lots not in Flood Total Lots not in Flood 2155 2155 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 11360 11360 Lots Per Area Lots Per Area St. Thomas Eastern District St. Thomas Eastern District St. Thomas Eastern District St. Thomas Eastern District 1897 1897 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 604 604 Total lots that were in flood and are now out of Total lots that were in flood and are now out of flood flood 258 258 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 6105 6105 Total Lots Not in Flood and Remained Not in Total Lots Not in Flood and Remained Not in Flood Flood 6363 6363 Total Lots not in Flood Total Lots not in Flood 2501 2501 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 6709 6709 Total Lots not in Flood Total Lots not in Flood 2155 2155 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 8864 8864 Lots Per Area Lots Per Area St. John District St. John District St. John District St. John District 734 734 Total lots in Flood and remain in flood Total lots in Flood and remain in flood 335 335 Total lots that were in flood and are now out of flood Total lots that were in flood and are now out of flood 133 133 Total Lots Not in Flood and are Now in Flood Total Lots Not in Flood and are Now in Flood 2960 2960 Total Lots Not in Flood and Remained Not in Flood Total Lots Not in Flood and Remained Not in Flood 3093 3093 Total Lots not in Flood Total Lots not in Flood 1069 1069 Total Lots in Flood Total Lots in Flood OLD MAPS OLD MAPS 3295 3295 Total Lots not in Flood Total Lots not in Flood 867 867 Total Lots in Flood Total Lots in Flood NEW MAPS NEW MAPS 4162 4162 Lots Per Area Lots Per Area What does the results of Change What does the results of Change Analysis this mean to Territory? Analysis this mean to Territory? ►New accurate and easy to read maps for better New accurate and easy to read maps for better development planning and mitigation planning. development planning and mitigation planning. ►Maps is GIS format for easier data analysis and Maps is GIS format for easier data analysis and cost effective map revisions and updating. cost effective map revisions and updating. ►Reduction in overall flood zone areas. Reduction in overall flood zone areas. ►Properly managed flood plain witch results Properly managed flood plain witch results Reduction in insurance. Reduction in insurance. ►Reduction in overall flood loss and damage in the Reduction in overall flood loss and damage in the Territory. Territory. Questions Questions