![]() Biggert-Waters Flood Insurance Reform Act of 2012 (BW-12): An act passed by Congress requiring FEMA to make changes to the NFIP to make it more financially sound.Base Flood Depth: The depth shown on the FIRM that indicates the depth of water above highest adjacent grade resulting from a flood that has a 1% chance of equaling or exceeding that level in any given year.Base Flood Elevation (BFE): The elevation of a flood having a 1% chance of being equaled or exceeded in any given year.Base Flood: The flood that has a 1% chance of being equaled or exceeded in any given year.Back-Flow Valve: A device used to prevent sanitary sewer lines from backing up into the home when the system becomes flooded.The 90-day appeal period is statutory and cannot be extended for any reason. During the 90-day appeal period, which begins on the date of the second publication of the BFE notice in the local newspaper(s), community officials or owners or lessees of real property within the community may appeal the proposed or proposed modified BFEs and/or base flood depths by submitting scientific or technical data to show that those BFEs or base flood depths are scientifically or technically incorrect. To start the appeal period, FEMA sends a letter to the Chief Executive Officer and floodplain administrator of the affected communities, publishes a notice twice in the local newspaper(s) with wide circulation, and publishes a notice (called a Proposed Rule) in the Federal Register. Appeal Period: The statutorily required 90-day period that is initiated when FEMA formally notifies community officials, residents, and other interested parties that FEMA is proposing new or modified Base Flood Elevations (BFEs) and/or new or modified base flood depths.An appeal must be based on data that show the proposed or proposed modified BFEs are scientifically or technically incorrect. Appeal: The formal objection to proposed or proposed modified Base Flood Elevations (BFEs), submitted by a community official or an owner or lessee of real property within the community during the statutory 90-day appeal period. ![]() 1% Annual Chance Flood: The flood that has a 1% chance of being equaled or exceeded in any given year.0.2% Annual Chance Flood: The flood that has a 0.2% chance of being equaled or exceeded in any given year.Base flood elevations derived from detailed hydraulic analyses are shown.Īreas determined to be outside the 0.2% annual chance floodplain. The Special Flood Hazard Areas subject to inundation by the 1% annual chance (100-year) flood event with additional hazards due to storm-induced velocity wave action three feet or greater. The Special Flood Hazard Areas subject to inundation by 1% annual chance (100-year) shall flooding (usually sheet flow on sloping terrain) where average depths are between one and three feet.Ĭoastal flood zone with velocity hazard (wave action) no Base Flood Elevations determined. The Special Flood Hazard Areas subject to inundation by the 1% annual chance (100-year) flood event determined by detailed methods. Because detailed hydraulic analyses have not been performed, no base flood elevations or flood depths are shown. The Special Flood Hazard Areas subject to inundation by the 1% annual chance (100-year) flood event generally determined using approximate methodologies. FEMA Flood Insurance Rate Map (FIRM) Key Zone A
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