WSP08670

• File Number: 8270.100
• Description: Colorado River Basin Water Quality/Salinity -- Misc Water Quality
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 1/7/1974
• Title: Status Report - Grand Valley Unit - Colorado River Water Quality Improvement Program
• Water Supply Pro - Doc Type: Report/Study

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Gnd concrete quantitie~ for various canal flows and slop~s. As the exist-

ing cGnal erons sections ~re much lQ~gcr than require~. for a typical USC~

concrete canal, very little excavation will be require~ and ecmr~ctcd bQck-

fill will be r.ocded in all canals. A,ty?ical section of the propoacd

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concrete lining of the c~n418 is sh~, in the sketch on page

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It is proposed to rep18c~ nearly all structures along the canals. . These

structures will be constructeJ to preoent USBR standards. All canal

turnouts will be replcced, and Parshall flume meaouring devices would be
provided for all lateral and f9~ turnouts.

All laterals will be constructed using stondard USBR concrete lined sections

ai,d stand::lrd atructure:i. Curves were also developed for estir.:l ting

lateral earthcork and concrete quantities for the various sized lsterals.

A typical section of the. proposed lateral lining would be similar to that

shown on page

for the canals construction.

Coots at the feasibility level hava not been canpleted at this tioe for

all oystcms in the valley. Howcver, with the studies cOT.lpleted to d:tte.,

the estimated cost of tbe SYStClUS improvements, based on a July 1973

price level, is as foll~G:

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