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WATERSHED FLOOD MAPSApalachee Bay – St. Marks River
Basin Resources
Flood Maps
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APALACHEE BAY – ST. MARKS RIVER WATERSHED
AERIAL
• Base map for the development of flood maps
• Helps understand the water resource
WATERSHED FLOOD MAPS
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POPULATION2010 Census
Total Basin Population
353,476
WATERSHED FLOOD MAPS
MAP IN PRODUCTION
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LAND USE
WATERSHED FLOOD MAPS
LAND USE SQUARE MILESAgriculture 46Barren Land 1Rangeland 30
Transportation/Utilities 18Upland Forest 512
Urban/Developed 144Water 14
Wetlands 278TOTAL (NWFWMD) 1,043
Total Basin Size (NWFWMD) = 543 sq. mi.[Forest/Wetlands = 790 sq. mi. (76%)]
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WETLANDS• 325 sq. mi. of wetlands in the
basin
• Help attenuate flood flows
• Provide a significant amount of flood storage
• NWFWMD ERP provides wetland protection & mitigation
• NWFWMD dam safety regulatory program
WATERSHED FLOOD MAPS
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CONSERVATION LANDS
WATERSHED FLOOD MAPS
• Most are within the Apalachicola National Forest & the St. Marks Wildlife Refuge
• Along with public preservation and recreation opportunities, conservation lands are a preventive measure that helps keep development out of the flood zone.
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• Existing gages
• Useful for flood warning and flood study model calibration
WATERSHED FLOOD MAPS
GAGE LOCATION
S MAP IN PRODUCTION
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LiDAR DATA
WATERSHED FLOOD MAPS
• NWFWMD LiDAR data base
• DEM for entire basin
• Important base data that is used throughout the district for flood mapping
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SPECIAL FLOOD
HAZARD AREA(SFHA)
WATERSHED FLOOD MAPS
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Escambia CountySFHA w/
Panel Scheme
WATERSHED FLOOD MAPS
• Map Modernization – upgraded maps in Escambia County
• Maps revised and went effective on September 29, 2006
MAP IN PRODUCTION
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Santa Rosa
CountySFHA with
Panel Scheme
WATERSHED FLOOD MAPS
• Map Modernization – upgraded maps in Santa Rosa County
• Maps revised and went effective on September 29, 2006
MAP IN PRODUCTION
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Okaloosa County SFHA with Panel Scheme
WATERSHED FLOOD MAPS
• Map Modernization – upgraded maps in Okaloosa County – Effective = December 6, 2002
• Now we are working under the risk map program to further improve the flood maps.
MAP IN PRODUCTION
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WATERSHED FLOOD MAPS
Current On-going
Non-Coastal Studies
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NWFWMD Flood Information Portal
http://portal.nwfwmdfloodmaps.com/
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NWFWMD Flood Information Portal
http://portal.nwfwmdfloodmaps.com/
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NWFWMD Flood Information Portal
http://portal.nwfwmdfloodmaps.com/
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NWFWMD Flood Information Portal
http://portal.nwfwmdfloodmaps.com/
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NWFWMD Flood Information Portal
http://portal.nwfwmdfloodmaps.com/
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NWFWMD Flood Information Portal
http://portal.nwfwmdfloodmaps.com/
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NWFWMD LiDAR Data Serverhttp://www.nwfwmdlidar.com/
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NWFWMD LiDAR Data Serverhttp://www.nwfwmdlidar.com/
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NWFWMD LiDAR Data Serverhttp://www.nwfwmdlidar.com/
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• DEM
• CONTOURS
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WATERSHED FLOOD MAPSPensacola Bay
QUESTIONS?