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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 />t.7:J <br />",,,) <br /> <br />""" At the top of the hill north of the Pumping Plant, the <br />U1 <br />C') <br /> <br />{\J discharge conduit terminates in a siphon-breaker house at the head <br /> <br />of the Granby Pump CanaL The water discharged here flows by gravity <br /> <br />through the L8 miles of the Granby Pump Canal, through Shadow Mountain <br /> <br />Reservoir, through Grand Lake and into the 13,1 mile long Alva 8, Adams <br /> <br />Tunnel Under the Continental Divide (reputed to be the longest irrigation <br /> <br />tunnel in the United States and to be the longest ever constructed exclu- <br /> <br />sively from two portals), After passing through the tunnel, the water <br /> <br />drops 3,000', passing through four power plants before being stored in <br /> <br />foothills reservoirs, until it is needed for irrigation by the farmers, <br /> <br />By dropping this water through the power plants, electrical energy is <br /> <br />produced for operating the project pumps and for general use, <br /> <br />Corning back to the "Mainspringll one finds the pumping plant <br /> <br />building to be of a unique design, The lower portion of the bUilding, <br /> <br />instead of being a conventional rectangular shape as is the portion <br /> <br />exposed above the ground, has straight side walls and semi-circular <br /> <br />ends, The side walls are constructed of concrete 5 to 6 feet in <br /> <br />5 <br /> <br />~, .-,' --.. ,- " <br /> <br /> <br /> <br />. :< <br /> <br />
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