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Last modified
1/25/2010 7:10:06 PM
Creation date
10/5/2006 2:32:56 AM
Metadata
Fields
Template:
Floodplain Documents
County
Alamosa
Community
Alamosa
Stream Name
Rio Grande
Basin
Rio Grande
Title
Master Drainage Plan Alamosa
Date
3/1/1982
Prepared For
Alamosa
Prepared By
McCarty-Hurst
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 /> System Improvements <br /> Pipe Pipe <br /> Size Length <br />From To (inches) (feet) <br />7th Street at La Veta 7th Street at 18 350 <br />Avenue extended U.S. 285 <br />7th Street at U.S. 285 U.S. 285 at 9th 24 800 <br /> Street extended <br />U.S. 285 at 9th Street Hi ckory-Jackson 36 2,000 <br />extended ditch <br />Laterals to 36-;nch 24 800 <br />pipe in U.S. 285 <br /> <br />From U.S. 285 to Airport Road, no outlet exists for Areas IV and <br />V. The berm of the Hickory-Jackson ditch prevents flow from go- <br />ing to the south. Where no berm exists, flow goes into the ditch, <br />also preventing the flow from going to the south. Attempts were <br />made to contact owners of the ditch company to determine water <br />rights to the ditch. During the irrigation season, the ditch <br />appeared to have enough capacity to carry the storm flows in <br />addition to the irrigation flows. However, the ditch company <br />may be opposed to combining the flows. It is recommended pur- <br />suing an agreement with the ditch company as one alternative. <br />A second alternative is a pipe paralleling the ditch along <br />13th Street. <br /> <br />Alternative 1. The existing Hickory-Jackson ditch has suf- <br />ficient capacity to carry the storm flows without irriga- <br />tion flows. Depending upon the decreed water rights, the <br />ditch could be modified to carry both flows, or storm <br />flows less than the 100-year storm runoff with larger <br />irrigation flows. Bridges and culverts at road crossings <br /> <br />-39- <br />
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