FEMA Floodplains for Washington, DC

Normal Water Level 100-yr Floodplain (Zone A) 100-yr Flooplain (Zone AE) 500-yr Floodplain (Zone X) Outside 500-yr Floodplain (Zone X) Floodway

Zone A - areas within Special Flood Hazard Area (SFHA), or 100-yr floodplain, for which Base Flood Elevations are not determined.

Zone AE - areas within Special Flood Hazard Area (SFHA), or 100-yr floodplain, for which Base Flood Elevations are determined.

Zone X - areas outside Special Flood Hazard Area (SFHA), or 100-yr floodplain.

Floodway - channel of a stream plus any adjacent floodplain areas that must be kept free of encraochment so that the 100-yr flood can be carried without substantial increases in flood heights.

0 2,500 5,000

0

0.5

1

10,000 2

?

1 inch = 2,500 feet

15,000 3

20,000 Feet

4 Miles

FEMA Floodplains for Washington, DC

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download