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WSPC05269
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Last modified
1/26/2010 11:43:03 AM
Creation date
10/9/2006 5:07:09 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8541
Description
San Luis Valley Project
State
CO
Basin
Rio Grande
Water Division
3
Date
6/17/1955
Author
R J Tipton
Title
San Luis Valley Project Closed Basin Division - 1952-1955 - Memo: Proposed report on Rio Grande and Weminuche Pass Divisions, San Luis Valley Project, Rio Grande Basin, CO - June 1955
Water Supply Pro - Doc Type
Report/Study
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<br />. <br /> <br />. <br /> <br />'l!)h~'~'?l <br />'\- lii:l...~('. <br /> <br />- 4 - <br /> <br />From the foregoing table it may be noted: <br /> <br />1. The capacity of the reservoir has been reduced from <br />1,050,000 acre-feet to 500,000 acre-feet which is in <br />line with the State's recommendation. <br /> <br />2. The power plants have been onlitted, the Bureau finding, <br />as did the State, that power cannot be justified from an <br />engineering or economic standpoint. Penstocks, however, <br />are proposed to be installed when and if power ever does <br />. become feasible. <br /> <br />3. The estimated cost of the project has been reduced from <br />$51,234,000 to $22,397,000. <br /> <br />4. The allocation to irrigation has been reduced from <br />$21,417,000 to $11,872,000. <br /> <br />5. The allocation to flood control has been raised from <br />$6,225,000 to $10,225,000. <br /> <br />6. The annual irrigation benefit has been raised from <br />$1,970,000 to $2,006,000. <br /> <br />7. The annual flood control benefits have been raised from <br />$177,000 to $590,300. <br /> <br />8. The benefit-cost ratio of the 1953 version of the project <br />was estimated at 2.24: 1, while that of the 1955 version <br />ie estimated at 3.17: 1. <br /> <br />9. The estimated annual cost per acre for repayment and <br />operation and maintenance has been reduced from $2.41 <br />to $1.37. <br /> <br />General Appraisal of 1955 version of Project. <br /> <br />The physical features of the project will not be described herein <br />as I understand this will be done by the Chief Engineer of the Board. <br />However, I wish to state that I have reviewed in a preliminary fashion the <br />preliminary design of the dam and its appurtenance and, in my opinion, <br />it is the best and most economical type of structure that could be built at <br />the Wagon Wheel Gap site to provide a reservoir with a capacity of <br />500,000 acre-feet. There may be some question concerning the capacity <br />of the outlet works and sluiceways. <br />
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