Average flood depths derived from detailed hydraulic analyses are shown in this zone. Areas subject to inundation by 1-percent-annual-chance shallow flooding (usually sheet flow on sloping terrain) where average depths are between one and three feet. Mandatory flood insurance purchase requirements and floodplain management standards apply. Base Flood Elevations (BFEs) derived from detailed hydraulic analyses are shown in this zone. Areas subject to inundation by 1-percent-annual-chance shallow flooding (usually areas of ponding) where average depths are between one and three feet. Areas subject to inundation by the 1-percent-annual chance-flood event determined by detailed methods. (In unincorporated Lee County, the county has estimated BFEs in these areas.) Because detailed hydraulic analyses have not been performed, no Base Flood Elevations (BFEs) or flood depths are shown. Areas subject to inundation by the 1-percent-annual-chance flood event generally determined using approximate methodologies. Special Flood Hazard Areas (SFHA) - The land area that could be covered by the floodwaters of the base flood is where the NFIP's floodplain management regulations must be enforced and where the mandatory purchase of flood insurance applies for federally backed mortgages. The map will zoom to the location and a dialog box will open with your property information. You can also open the Flood Report and the Property Report. When the map opens, click the magnifying glass in the upper right corner and enter your address. Here is an easy tool to quickly find your Flood Insurance information. Click Find My Flood Zone. Most mortgage lenders require flood insurance in these zones. Insurance rates are calculated using the Base Flood Elevation (BFE). This is also called the 100-year flood.įlood zones in the Special Flood Hazard Area begin with V or A. The SFHA is an area that could be inundated by a flood event, with a 1 percent chance of reaching or exceeding the Base Flood Elevations (BFE) in any given year.

Flood zones determine the premium for flood insurance rates and set construction standards for parcels located in the Special Flood Hazard Area (SFHA), commonly called the FEMA floodplain.

Flood zone map