Sfhas are labeled as zone a zone ao zone ah zones a1 a30 zone ae zone a99 zone ar zone ar ae zone ar ao zone ar a1 a30 zone ar a zone v zone ve and zones v1 v30.
Flood zone ae definition.
Definitions of fema flood zone designations flood zones are geographic areas that the fema has defined according to varying levels of flood risk.
The 1 percent annual chance flood is also referred to as the base flood or 100 year flood.
Base flood elevations bfes derived from detailed hydraulic analyses are shown in this zone.
Flood insurance is mandatory in all a zones because of the high potential of flooding.
Each zone reflects the severity or type of flooding in the area.
Zone c zone x areas determined to be outside 500 year floodplain determined to be outside the 1 and 0 2 annual chance floodplains.
Because flood zone ae is prone to flood property owners with mortgages from federally regulated lenders in these zones must buy flood insurance if they live in a community that participates in the national flood insurance program nfip.
60 3 c zone ae and a1 30 requirements d floodway requirements.
Moderate flood hazard areas labeled zone b or zone x shaded are also shown on.
This area is more commonly referred to as the base flood area or the 100 year flood plain.
A zone maps also include ae ah ao ar and a99 designations all having the same rates.
Mandatory flood insurance purchase requirements and floodplain management standards apply.
Zone b zone x500 areas of 500 year flood.
National flood insurance program requirements.
Additionally such localities are considered to have a 26 percent chance of flooding in the course of a 30 year mortgage.
A zones the next most volatile of the special flood hazard areas are subject to rising waters and are usually near a lake river stream or other body of water.
Zone x is used on new and revised maps in place of zone c x shaded x500 b areas of moderate flood hazard from the principal source of flood in the area.
B x shaded moderate risk areas within the 0 2 percent annual chance floodplain areas of 1 percent annual chance flooding where average depths are less than 1 foot areas of 1 percent annual chance flooding where the contributing drainage area is less than 1 square mile and areas protected from the 1 percent annual chance flood by a levee.
These zones are depicted on a community s flood insurance rate map firm or flood hazard boundary map.
Zone classifications please print a copy for future reference.