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Last modified
1/26/2010 12:34:30 PM
Creation date
10/11/2006 10:55:13 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8441.400
Description
The Colorado Big Thompson Project - Reports
Basin
South Platte
Water Division
1
Date
1/1/1951
Author
CS Scribner
Title
The Mainspring of the Colorado-Big Thompson Project
Water Supply Pro - Doc Type
Report/Study
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<br />o <br /> <br />r-") <br /> <br />1-'" <br />U' <br />C:l <br />o <br /> <br />::-..,': <br /> <br /> <br />The Granby Pumping Plant is a reinforced concrete building <br /> <br />constructed of some 18,000 cubic yards of concrete and 4,660,000 <br /> <br />pounds of reinforcement steel. Its height of 188 feet is the equiva- <br /> <br />lent of a thirteen story office buildingo Only fifty feet of this <br /> <br />struct~e is exposed above the ground; the rest of the building is <br /> <br />buried, since the reservoir water surface will fluctuate some 94 feet <br /> <br /> <br />and the pumps must be located below the lowest level of the watero <br /> <br />The three main pumps, each powered by a 6,000 horsepower electric <br /> <br />motor, are capable of lifting to a height of 186 feet a minimum of <br /> <br />388,000,000 gallons of water per day. As the reservoir fills, each <br /> <br />pump will become more productive and when the reservoir is full the <br /> <br />three pumps will lift about 632,000,000 gallons of water each d~yo <br /> <br />Construction was started in April, 1947, for the Pumping <br /> <br /> <br />Plant and its related structures by contract with the Granby Construc- <br /> <br />tors, an association of seven contractors combined especially for <br /> <br />this job. Before any concrete could be placed, approximately 275,000 <br /> <br />cubic yards of earth and siltstone had to be removed to expose a <br /> <br />3 <br />
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