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ZONE A |
No base flood elevations determined |
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ZONE AE |
Base flood elevations determined |
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ZONE X |
Areas of 500 year flood; areas of 100 year flood with average depths of less than 1 foot or with drainage areas less than 1 square mile; and areas protected by levees from 100 year flood |
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ZONE X |
Area of 500 year flood; areas of 100 year flood with average depths of les than 1 foot or with drainage areas less than 1 square mile; and areas protected by levees from 100 year flood |
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ZONE X |
Areas determined to be outside 500 year flood plain |
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ZONE D |
Areas in which flood hazards are undetermined |
EXPLANATION OF ZONE DESIGNATIONS
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ZONE A |
Areas of 100 year flood; base flood elevations and flood hazard factors not determined |
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ZONE A1- A30 |
Areas of 100 year flood; base flood elevations and flood hazard factors determined |
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ZONE B |
Areas between limits of the 100 year flood and 500 year flood; or certain areas subject to 100 year flooding with average depths less than (1) foot or where the contribution drainage area is less than one square mile; or areas protected by levees from the base flood |
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ZONE C |
Areas of minimal flooding |
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ZONE V1 – V30 |
Areas of 100 year coastal flood with velocity (wave action); base flood elevations and flood hazard factors determined |