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what are flood zones?
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Floods and flash floods
happen in all 50 states. |
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A car
can easily be carried away by just two feet of floodwater. |
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Just
an inch of water can cause costly damage to your property. |
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Flood zones are land areas
identified by the Federal Emergency Management Agency (FEMA). Each flood
zone describes that land area in terms of its risk of flooding. Everyone
lives in a flood zone -- it's just a question of whether you live in a
low-, moderate- or high-risk area. |
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ZONE |
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X |
An area that is determined
to be outside the 100- and 500-year floodplains |
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A |
Areas of 100-yr flood; base
flood elevations and flood hazard factors not determined. |
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AO |
Areas of 100-yr shallow
flooding where depths are between one (1) and three (3) feet; average
depths of inundation are shown, but no flood hazard factors are
determined |
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AH |
Areas of 100-yr shallow
flooding where depths are between one (1) and three (3) feet; base flood
elevations are shown, but no flood hazard factors are determined. |
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A1-A30 |
Areas
of 100-yr flood; base flood elevations and flood hazard factors
determined. |
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A99 |
Areas of 100-yr flood to be
protected by flood protection system under construction; base flood
elevations and flood hazard factors not determined. |
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B |
Areas between limits of the
100-yr flood and 500-yr flood; or certain areas subject to 100-yr
flooding with average depths less than one (1) foot or where the
contributing drainage area is less than one square mile; or areas
protected by levees from the base flood. (Medium Shading) |
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C |
Areas of minimal flooding.
(No Shading) |
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D |
Areas of undetermined, but
possible, flood hazards. |
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V |
Areas of 100-yr coastal
flood with velocity (wave action); base flood elevations and flood
hazard factors not determined. |
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V1-V30 |
Areas
of 100-yr coastal flood with velocity (wave action); base flood
elevations and flood hazard factors determined |
