For more information about flood maps, please see the following page: Flood Insurance Rate Map (FIRM). The Address Search allows you to search by specific address or location. Zone X is the area determined to be outside the 500-year flood and protected by levee from the 100-year flood.Īrea of undetermined but possible flood hazards. To find the effective Flood Insurance Rate Map (FIRM) or Flood Hazard Boundary Map (FHBM) for your area of interest, you may use the Address Search feature. Zone C may have ponding and local drainage problems that don't warrant a detailed study or designation as base floodplain. B Zones are also used to designate base floodplains of lesser hazards, such as areas protected by levees from the 100-year flood, or shallow-flooding areas with average depths of less than one foot or drainage areas less than 1 square mile.Īrea of minimal flood hazard, usually depicted on FIRMs as above the 500-year flood level. The coastal area subject to a velocity hazard (wave action) where BFEs are provided on the FIRM map.Īrea of moderate flood hazard, usually the area between the limits of the 100-year and 500-year floods. The coastal area subject to a velocity hazard (wave action) where BFEs are not determined on the FIRM map. The base floodplain that results from the decertification of a previously accredited flood protection system that is in the process of being restored to provide a 100-year or greater level of flood protection. View the FEMA Flood Designations for your area (The current FEMA Flood Maps were adopted effective September 26, 2014.). BFEs are provided.Īrea to be protected from base flood by levees or Federal Flood Protection Systems under construction. Base flood depths (feet above ground) are provided. The base floodplain with sheet flow, ponding or shallow flooding. ![]() On newer FIRMs, AE Zones are the same as A1-A30 Zones (i.e., BFEs are shown). BFEs are shown on a FEMA map that includes any of these zones. Known as numbered A Zones (e.g., A7 or A14). ![]() This is often called an unnumbered A Zone or an approximate A zone. Six types of 'A' zones are described below.īase flood elevations (BFE) are not determined. Please see the table below for explanations of these zones. Whatever the area shown on a FEMA FIRM map, it may include several types of floodplain zones, each designated by a letter or a combination of a letter and number(s).
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