Sample
Page




 |
 |
SPECIAL
FLOOD HAZARD AREAS INUNDATED BY 100-YEAR FLOOD |
| ZONE A |
No base
flood elevations determined. |
| ZONE AE |
Base
flood elevations determined. |
| ZONE AH |
Flood
depths of 1 to 3 feet (usually areas of ponding); base flood
elevation determined. |
| ZONE AO |
Flood
depths of 1 to 3 feet (usually sheet flow on sloping terrain);
average depths determined. For areas of alluvial fan flooding
velocities also determined. |
| ZONE
A99 |
To be
protected from 100-year flood by Federal flood protection system
under construction; no base flood elevations determined. |
| ZONE V |
Coastal
flood with velocity hazard (wave action); no base flood
elevations determined. |
| ZONE VE |
Coastal
flood with velocity hazard (wave action); base flood elevations
determined. |
| ZONE AR |
Zone AR
is the flood insurance rate zone used to depict areas protected
from flood hazards by flood control structures, such as a leeve,
that are being restored. FEMA will consider using the Zone AR
designation for a community if the flood protection system has
been deemed restorable by a Federal agency in consultation with
a local project sponsor; a minimum level of flood protection
system is scheduled to begin within a designated time period and
in accordance with a progress plan negotiated between the
community and FEMA. Mandatory purchase requirements for flood
insurance will apply in Zone AR, but the rate will not exceed
the rate of unnumbered A zones if the structure is built in
cofloodplain management regulations. For floodplain management
in Zone AR areas, elevation is not required for improvements to
existing structures. However, for new construction, the
structure must be elevated (or flood proofed for non-residential
structures) such that the lowest floor, including basement, is
the maximum of 3 feet above the highest adjacent existing grade
if the depth of the base flood elevation (BFE) does not exceed 5
feet at the proposed development site. For infill sites,
rehabilitation of the existing structures, regardless of the
depth of the BFE at the project site, the AR designation will be
removed and the restored flood control system shown as providing
protection from the 1% annual chance of flooding on the the NFIP
map upon completion of the restoration project and submittal of
all necessary data to FEMA. |
 |
FLOODWAY
AREAS IN ZONE AE |
 |
OTHER
FLOOD AREAS |
| ZONE X |
Areas of
500-year flood; areas of 100-year flood with average depths of
less than one foot or width drainage areas less than one square
mile and areas protected by levees from 100-year flood. |
| ZONE B |
Zone B is
the flood insurance rate zone that corresponds to areas outside
the 100-year floodplains, areas of 100-year sheet flow flooding
where average depths are less than one foot, areas of 100-year
stream flooding where the contributing drainage area is less
than one square mile, or areas protected from the 100-year flood
by a levee are shown within this zone. |
 |
OTHER
AREAS |
| ZONE X |
Areas
determined to be 500-year floodplain. |
| ZONE D |
Areas in
which flood hazards are undetermined. |
| ZONE C |
Zone C is
the flood insurance rate zone that corresponds to areas outside
of the 100-year floodplain, areas of 100-year sheet flow
flooding where average depths are less than one foot, areas of
100-year stream flooding where the contributing drainage area is
less than one square mile, or areas protected from a 100-year
flood by a levee are shown within this zone. |
 |
ZONE
A |
| ZONE A |
Zone A is
the flood insurance rate zone that corresponds to the 100-year
floodplains that are determined by the Flood Insurance Study (FIS)
by approximate methods. Because detailed hydraulic analyses are
not performed for such areas, no BFEs or depths are shown within
this zone. Mandatory flood insurance requirement apply. |
|
Search | Contents | Feedback
|