![]() These zones are shown on the FIRM as shaded "X" zones.Īnnual Probability of Flooding of Less than 0.2%Īreas outside the 500-year flood plain with less than 0.2% annual probability of flooding.Īnnual Probability of Flooding of Less than 1%Īreas outside a "Special Flood Hazard Area" (or 100-year flood plain). This is an area inundated by 1% annual chance flooding for which no base flood elevations have been determined.Īnnual Probability of Flooding of 0.2% to 1%Īreas between the limits of the 100-year and 500-year flood or certain areas subject to 100-year flood with average depths less than 1 foot or where the contributing drainage area is less than 1 square mile or areas protected by levees from the 100-year flood. This area has been delineated based on available information on past floods. ![]() No distinctions have been made between the different flood hazard zones that may be included within the SFHA.Īn area designated as a "Flood Prone Area" on a map prepared by USGS and the Federal Insurance Administration. ![]() Base flood elevation determined.Īreas in a "Special Flood Hazard Area" (or 100-year flood plain). Base flood elevation undetermined.īoth VE and V1-V30 represent areas subject to 100-year flood and additional velocity hazard (wave action). Subject to 100-year flood and additional velocity hazard (wave action). Subject to 100-year flood, with federal flood protection system (levee/dam) under construction. Subject to 100-year shallow flooding (usually sheet flow on sloping terrain) with average depth of 1-3 feet. Subject to 100-year shallow flooding (usually areas of poundings) with average depth of 1-3 feet. Base flood elevation undetermined.īoth AE and A1-A30 represent areas subject to 100-year flood with base flood elevation determined. The table below explains the flood zones that can be viewed on a community's flood insurance rate map (FIRM):Īnnual Probability of Flooding of 1% or greater
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