![]() The area determined to be outside the 500-year floodplain.įlood maps in coastal areas may include a line called the Limit of Moderate Wave Action (LiMWA). Usually depicted on FIRMS and DFIRMS as above the 500-year flood level. ![]() Also known as the area of 0.2% annual chance flood hazard.Īrea of minimal flood hazard. Mandatory flood insurance purchase requirements and floodplain management standards apply.Īrea of moderate flood hazard, usually the area between the limits of the 100-year and the 500-year floods. Mandatory flood insurance purchase requirements and floodplain management standards apply.Īreas subject to inundation by the 1% annual chance flood event with additional hazards due to storm induced velocity wave action. Because detailed hydraulic analyses have not been performed no base flood elevations (BFEs) or flood depths are shown. Mandatory flood insurance purchase requirements and floodplain management standards apply.Īreas along coasts subject to inundation by the 1% annual chance flood event with additional hazards associate with storm induced waves. Mandatory flood insurance purchase requirements and floodplain management standards apply.Īreas subject to inundation by the 1% annual chance flood event determined by detailed methods. ![]() Because detailed hydraulic analyses have not been performed, no base flood elevations (BFEs) or flood depths are shown. Understanding Stormwater and the EnvironmentĪreas subject to inundation by the 1% annual chance flood event generally determined by using approximate methodologies.Current Flood Maps VS Preliminary Flood Zone Map.An Increasing Flood Risk in the City of Venice.
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