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FLOOD03689
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Last modified
1/25/2010 6:28:01 PM
Creation date
10/4/2006 11:56:45 PM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
170
County
Eagle
Community
Red Cliff
Basin
Colorado Mainstem
Title
Flood Insurance Study - Red Cliff, Eagle County, Colorado
Date
12/1/1979
Designation Date
12/1/1980
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />As shown on the Flood Boundary and Floodway Map (Exhibit 2), the <br />floodway boundaries were determined at cross sections; between cross <br />sections, the boundaries were interpolated. In cases where the <br />floodway and IOO-year flood boundaries are close together, only the <br />floodway boundary has been shown. <br /> <br />The an~a between the floodway and the boundary of the lOO-year flood <br />is termed tne floodway fringe. The floodway fringe thus encompasses <br />the portion of the flood plain that could be completely obstructed <br />withou~ increasing the water-surface elevation of the lOO-year flood <br />more than 1.0 foot at any point. Typical rela~ionships between the <br />floodway and the floodway fringe and their significance to flood <br />vlain development are shown in Figure 2. <br /> <br />I- <br /> <br />1 OO-YEAR FLOOD PLAIN <br /> <br />-I <br /> <br />F LOODWA Y <br />FRI N(~I:: <br /> <br /> <br />FLOODWAY <br /> <br />FLOODWAY <br />FRINGE <br /> <br />STREAM <br />CHANNEL <br /> <br /> <br />FLOOD ELEVATION WHEN <br />CONFINED WITHIN FLODDWAY <br />~ <br /> <br />c <br /> <br /> <br />o <br /> <br />ARI:A OF FLOOD PLAIN THAT COULD <br />BE USED FOR DEVELOPMENT BY <br />RAISING GROUND <br /> <br />FLOOD ELEVATION <br />BEFORE ENCROACHMENT <br />ON FLOOD PLAIN <br /> <br />LINE AB 1$ THE FLOOD ELEVATION BEFORE ENCROACHMENT. <br />LINE CD IS THE FLOOD ELEVATION AFTER ENCROACHMENT. <br />'SURCHARGE IS NOT TO EXCEED 1.0 FOOT (FIA REQUIREMENT) OR LESSER AMOUNT IF SPECIFIED BY STATE. <br /> <br />F1.gure 2. <br /> <br />rloodway Schematic <br /> <br />11 <br />
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