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Last modified
1/26/2010 10:09:14 AM
Creation date
10/5/2006 4:19:23 AM
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Template:
Floodplain Documents
County
Larimer
Community
Fort Collins
Stream Name
Dry Creek
Basin
South Platte
Title
Hydraulic Roughness Value Analysis - Manning's n - Dry Creek
Date
8/1/1979
Prepared For
Larimer County
Prepared By
Gingery Associates, Inc.
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 />I <br />I <br />I <br />I <br />-. <br />I <br />I <br /> <br />REACH XV - U.S. HIGHWAY 287 TO THE NORTH EDGE OF THE SOUTHWEST <br />ONE-QUARTER, SECTION 26 (STUDY LIMIT) <br /> <br />Through most of this area, the well defined channel runs <br />through pasture land with a few trees along the bank. An "n" <br />value of .045 for the overbanks and .04 for the meandering <br />channel was selected. However, just upstream of the highway, <br />thick brush lines the channel banks. Here an "n" value of 0.1 <br />was chosen in the area of the banks, while all other values will <br />be the same. See pictures 30 and 31. <br /> <br /> <br />Picture 30 - Looking upstream at the Dry Creek <br />channel just above U.S. Highway 287. <br />n=.04 in the channel, and 0.1 along <br />the banks. <br /> <br />-28- <br /> <br />I <br />
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