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FLOOD03677
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Last modified
1/25/2010 6:27:57 PM
Creation date
10/4/2006 11:56:06 PM
Metadata
Fields
Template:
Floodplain Documents
County
Larimer
Community
Fort Collins
Stream Name
Dry Creek
Basin
South Platte
Title
Major Drainageway Planning Dry Creek Technical Addendum
Date
4/1/1980
Prepared For
Larimer County
Prepared By
Gingery Associates, Inc.
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />'1 <br />~I <br />I <br />jl <br />I <br />;1 <br />I <br /> <br />I!I <br />,] <br /> <br />, <br /> <br />1:1 <br /> <br />, <br /> <br />1.1 <br />;1 <br />;1 <br /> <br />f <br /> <br />I <br />I <br />II <br />I <br />:1 <br />il <br />11 <br />( <br />ill <br />I ~ I <br /> <br />DRY CREEK BASIN <br /> <br />Basin Description <br /> <br />The Dry Creek Basin is long and narrow, with its upper reaches <br /> <br />in the eastern foothills of the Rocky Mountains and its lower <br /> <br />reaches extending onto the agricultural plains immediately <br /> <br />north of Fort Collins (Figure 1). The basin is in east central <br /> <br />Larimer County, with portions of the lower basin extending into <br /> <br />Fort Collins. <br /> <br />The basin encompasses a drainage area of approximately 6S-square <br /> <br />miles, with basin elevations ranging from 7,000' MSL in the <br /> <br />foothills to 4,900' MSL near Fort Collins. The average basin <br />slope is approximately 2% in a southeasterly direction. Eleven <br /> <br />major irrigation canals and 13 major storage reservoirs plus <br /> <br />several minor storage reservoirs are part of an extensive <br /> <br />irrigation network within the basin (Figure 2). <br /> <br />The Dry Creek stream channel is tributary to the Cache la Poudre <br /> <br />River immediately east of Fort Collins. The channel generally <br /> <br />has a well defined, meandering low flow section and a wide, <br /> <br />gently sloped overbank area. In the reach below the Eaton Ditch, <br /> <br />however, the channel has been obliterated by development over <br /> <br />much of its length. The Dry Creek channel has many tributaries <br /> <br />'j:: <br /> <br />.. ~,I, -.__,.{ <br />'.' .r... "1"-;;~' <br />
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