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Last modified
1/26/2010 10:11:45 AM
Creation date
10/5/2006 4:50:26 AM
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Floodplain Documents
County
Larimer
Community
Fort Collins
Basin
South Platte
Title
Master Drainage Plan Update Colorado State University
Date
1/1/1998
Prepared For
Fort Collins
Prepared By
Ayres Associates
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 />I <br />I <br />I <br />I <br /> <br />The result is not surprising when considering the volume of the 1997 event. Approximately <br />300 ac-ft of water entered the campus from the west, combining with campus runoff <br />providing a need for approximately 300 ac-ft of storage to achieve any significant benefit in <br />reducing the inundation on the campus. With the total volume of the proposed detention <br />and lagoon area being approximately 200 ac-ft, there would need to be an additional 100 <br />ac-ft of storage to adequately control oval water surface elevations. <br /> <br />Figure 8 shows the proposed berm that would provide protection for the student center. <br />This berm along with berms for the health center, Eddy, and Education Buildings would <br />provide adequate refuge from a major portion of damages that occurred in the 1997 event. <br /> <br />Figure 9 shows the location of the proposed enlarged detention area. This area would not <br />decrease water surface elevations with the magnitude of the 1997 event. It would, <br />however, provide protection above the 1 OO-year event. This area coupled with increase of <br />diversion to Spring Creek by the ditches west of campus could decrease the overall flow <br />onto campus for an event similar to 1997. <br /> <br />15 <br /> <br />Ayres Associates <br />
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