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WSP09110
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Last modified
1/26/2010 2:51:18 PM
Creation date
10/12/2006 3:28:02 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.102.03.I
Description
Colorado River Water Projects - Aspinall Storage Unit - Morrow Point - Environmental Studies
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
9/1/2001
Author
DOI-BOR
Title
Morrow Point Cimarron River Dredging Project - Final Environmental Assessment and Finding of No Significant Impact
Water Supply Pro - Doc Type
Report/Study
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<br />Cimarron Dred~ing [n\-ironment;)1 Assessment <br /> <br /> <br />Figure 1. - Cunnuence of the Gunnison and Cimarron Rinr.-i <br /> <br />Backe.round Informatiun <br /> <br />:\-lorrow Point Dam - )'Iorrow Point Dam was completed in 1968;1s pm oflhe Aspinall unit of <br />the Colorado River Storage Project. The dam is a double-l..:iJrvature ~[rucrure with a maximum <br />thickness of ;1bout 50 feet. Unusual dam feamres include an overhang on the Jo\\.n.'lotream f:.lce. <br />an undercut on the upstream face. unusual thickness. and four large opening.'lo neM the top of the <br />dam for a spillw:JY. <br /> <br />The spillway consists of four 15 by 15 foot submerg.ed orifice openings through the top central <br />portion of t.he dam. e:lch controlled by a 15 by 16.83-foot fi.ted-whet:! gate. The splllw:lY <br />discharge falls about 365 feet into a stilling basin at the tIX of the d:lffi. A 65-foot-high weir <br />localed about 320 feet downstream from the dam controls the depth of the W:lter in the stilling <br />basin. <br /> <br />A series of high now e.....ents (including 1983-1984) in the Cimarron Ri.....er. mo.....ed large <br />quantities of gravel and olher material from the Cimarron River and depo~ited It at the <br /> <br />o <br />
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