Mandatory flood insurance purchase requirements and floodplain managment standards apply. Zone VE is a Coastal high hazard area subject to inundation by the 1% annual chance of flood, where wave action and/or high-velocity water can cause structural damage.Zone AE is an area subject to inundation by the 1% annual chance flood, including areas with the 2% wave run-up, elevation less than 3 feet above the ground, and areas with wave heights less than 3 feet.Mandatory flood insurance purchase requirements and floodplain management standards apply. Zone AH is an area subject to inundation by 1% annual chance shallow flooding with a constant water-surface elevation (usually areas of ponding) where average depths are between 1 and 3 feet.Residents and business owners can view maps to better understand their potential flood risk to help identify steps they may need to take to protect against property damage and flood loss.įlood Zone Designations – What Do They Mean? These maps are referred to as Flood Insurance Rate Maps (FIRMs) and illustrate flood hazards throughout the community and are used when determining flood insurance policy rates. The new 2012 Flood Zone Maps replace the existing 2005 maps using updated and more detailed information. The Federal Emergency Management Agency (FEMA) in a co-operative agreement with Collier County and the City of Naples has just completed a major effort to develop detailed digital flood hazard maps that reflect current flood risks throughout the community. Flood hazards are undetermined.2012 Flood Insurance Rate Maps are in effect for construction and insurance purposes! Can include areas inundated by 0.2% annual chance flooding areas inundated by 1% annual chance flooding with average depths of less than 1 foot or with drainage areas less than 1 square mile areas protected by levees from 1% annual chance flooding or areas outside the 1% and 0.2% annual chance floodplains. 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

Fema flood zone codes