A |
Special Flood Hazard Area (SFHA) |
High |
An area subject to inundation by the 1% annual chance flood
event, for which no BFEs have been determined. |
AE |
Special Flood Hazard Area (SFHA) |
High |
An area subject to inundation by the 1% annual chance flood
event, for which BFEs have been determined. |
A1-A30 (create 30 rows for this A1, A2, A3, and so on till
A30) |
Special Flood Hazard Area (SFHA) |
High |
An area subject to inundation by the 1% annual chance flood
event, for which BFEs have been determined. |
AH |
Special Flood Hazard Area (SFHA) |
High |
An area subject to inundation by the 1% annual chance shallow
flooding (usually an area of ponding), for which BFEs have been
determined; average flood depths range from 1 to 3 feet. |
AO |
Special Flood Hazard Area (SFHA) |
High |
An area subject to inundation by the 1% annual chance shallow
flooding (usually sheet flow on sloping terrain), for which average
depths have been determined; flood depths range from 1 to 3
feet. |
AR |
Special Flood Hazard Area (SFHA) |
High |
An area that results from the decertification of a previously
accredited flood protection system that is determined to be in the
process of being restored to provide base flood protection. |
A99 |
Special Flood Hazard Area (SFHA) |
High |
An area subject to inundation by the 1% annual chance flood
event, but which ultimately be protected upon completion of an under
construction Federal flood protection system. This is an area of
special flood hazard where enough progress has been made on the
construction of a protection system, such as dikes, dams, and
levees, to consider it complete for insurance rating purposes. BFEs
have not been determined. |
V |
Coastal High Hazard Areas (CHHA) |
High |
An area along coasts subject to inundation by the 1% annual
chance flood event with additional hazards associated with storm
induced waves. No BFEs have been determined. |
VE |
Coastal High Hazard Areas (CHHA) |
High |
An area along coasts subject to inundation by the 1% annual
chance flood event with additional hazards associated with storm
induced velocity wave action. BFEs have been determined. |
V1-V30 (create 30 rows for this) |
Coastal High Hazard Areas (CHHA) |
High |
An area along coasts subject to inundation by the 1% annual
chance flood event with additional hazards associated with storm
induced velocity wave action. BFEs have been determined. |
B |
Moderate Risk Area |
Moderate |
An area within the 0.2% annual chance flood plain, an area of 1%
annual chance flooding where average depths are less than 1 foot, an
area of 1% annual chance flooding where the contributing drainage
area is less than 1 square mile, and areas protected from the 1%
annual chance flood by a levee. BFEs have not been
determined. |
C |
Minimal Risk Area |
Minimal |
An area outside the 1% and 0.2% annual chance flood plains. BFEs
have not been determined. |
X |
Moderate to Minimal Risk Area |
Moderate to Minimal |
X(shaded) is the moderate risk area within the 0.2% annual chance
flood plain while X (unshaded) is an area outside the 1% and 0.2%
annual chance flood plains. BFEs have not been determined. |
D |
Undetermined Risk Area |
Undetermined |
An unstudied area where flood hazards are undetermined, but
flooding is possible. No mandatory flood insurance purchase
requirements apply, but coverage is available in participating
communities. |
SHX |
Minimal Risk Area |
Minimal |
An area where there is a .02 chance of flood in any given year
(also known as the 500-year flood zone). |
NONE |
Unknown |
Unknown |
An area for which there is no available FEMA flood zone. |