| B,
C and X |
These
areas have been identified in the community FIS as areas of
moderate or minimal hazard from the principal source flood in the
area. However, buildings in these zones could be flooded by
severe, concentrated rainfall coupled with inadequate local
drainage systems. Local storm water drainage systems are not
normally considered in the communities FIS. The failure of a local
drainage system creates areas of high flood risk within these rate
zones. Flood insurance is available in participating communities.
(Zone “X” is used on new and revised maps in place of Zones B
and C.)
|
| |
|
| D |
Unstudied areas where
flood hazards are undetermined but flooding is possible. Flood
insurance is available in participating communities. |
| |
|
| N/A |
Nonparticipating community or part of a community. There are
no FIRM’s printed for the majority of these areas unless they
did participate in the NFIP at one time. Flood insurance is not
available in a nonparticipating community.
|
| |
|
| V |
SFHA’s along coasts
subject to inundation by the 100-year flood with the additional
hazards associated with storm waves. Because detailed hydraulic
analyses have not been performed, no base flood elevations or
depths are shown. |
| |
|
| VE &
V1-V30 |
SFHA’s along coasts
subject to inundation by the 100-year flood with the additional
hazards due to velocity (wave action). Base flood elevations
derived from detailed hydraulic analyses are shown within these
zones. (Zone VE is used on new and revised maps in place of zones
V1-V30.) |
| |
|
| A |
SFHA’s subject to
inundation by the 100-year flood. Because detailed hydraulic
analyses have not been performed, no base flood elevations or
depths are shown. |
| |
|
| AE &
A1-A30 |
SFHA’s subject to
inundation by the 100-year flood determined in a FIS by detailed
methods. Base flood elevations are shown within these zones. (Zone
AE is used on new and revised maps in place of zones A1-A30.) |
| |
|
| AH |
SFHA’s subject to
inundation by 100-year shallow flooding (usually areas of ponding)
where average depths are between one and three feet. Base flood
elevations derived from detailed hydraulic analyses are shown
within these zones. |
| |
|
| AO |
SFHA’s subject to
inundation by 100-year shallow flooding (usually sheet flow on
sloping terrain) where average depths are between one and three
feet. Average flood depths derived from detailed hydraulic
analyses are shown within these zones. |
| |
|
| A99 |
SFHA’s subject to
inundation by the 100-year flood, which will be protected by a
federal flood protection system when construction has reached
specified statutory progress toward completion. No base flood
elevations or depths are shown. |
| |
|
| |
Key
to Abbreviations |
| |
|
| SFHA |
Special Flood Hazard
Area |
| |
|
| NSFHA |
No Special Flood
Hazard Area |
| |
|
| FIS |
Flood Insurance Study |
| |
|
| F.I.R.M. |
Flood Insurance Rate
Map |
| |
|
| FEMA |
Federal Emergency
Management Agency |
| |
|
| NFIP |
National Flood Insurance Program
|
|
|
