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FLOOD03394
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FLOOD03394
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Last modified
1/25/2010 6:27:09 PM
Creation date
10/4/2006 11:42:09 PM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
505
County
Jefferson
Community
Unincorporated Jefferson County
Basin
South Platte
Title
Flood Insurance Study - Jefferson County, CO, Unincorporated Areas
Date
4/1/1989
Designation Date
9/1/1999
Contract/PO #
&&
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />;1 <br />I <br />,I <br />I <br />I <br />!I <br />,I <br />I <br /> <br />Table l(b) - Estimated n-values for East Douglas Wash's Channel Cross-Sections <br />HEC-RAS n-Values <br />Cross-Sections Left Over-Bank Channel Right Over-Bank <br />1660-1617 0.050 0.050 0.050 <br />1616-1603 0.055 0.055 0.055 <br />1538- 1 600 0.050 0.050 0.050 <br />1530- 1502 0.055 0.055 0.055 <br />1500-1480 0.050 0.050 0.050 <br />1470-1460 0.060 0.060 0.060 <br />1457-1448 0.055 0.055 0.055 <br />1447-1350 0.065 0.065 0.065 <br />1342-1320 0.050 0.050 0.050 <br />1310-1260 0.055 0.055 0.055 <br />1252-1140 0.050 0.050 0.050 <br />1130-1120 0.055 0.055 0.055 <br />1110-1000 0.065 0.065 0.065 <br />3383.8-3383.5 0.065 0.065 0.065 <br />3383.4-3382.4 0.060 0.060 0.060 <br />3382.2-3381.0 0.050 0.050 0.050 <br /> <br />Inserted cross-sections, at or near bridges and culverts, are not <br />shown on the flood maps because they were used mainly for HEC-RAS's <br />structural modeling. The elevations of these inserted cross- <br />sections were interpolated from either a up-stream or a down-stream <br />cross-section near the structure. <br /> <br />9 <br />
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