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WSP00945
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Last modified
1/26/2010 12:28:34 PM
Creation date
10/11/2006 10:03:42 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8442.400
Description
Missouri Basin - Pick Sloan Project - Reports
State
CO
Basin
South Platte
Water Division
1
Date
2/28/1985
Author
DoI, BoR
Title
Lake Andes - Wagner Unit Planning Report / draft Enviromental Statement
Water Supply Pro - Doc Type
Report/Study
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<br />Cross Drainage <br /> <br />I <br />I <br /> <br />Cross drainage flows, or the flows in natural drainages that intersect the <br /> <br /> <br />canals and laterals, were computed using the McMath procedure. TheMcMath <br /> <br />formula is: <br /> <br />Q = CI A4/5 Sl/5 <br /> <br />I <br />I <br /> <br />where <br /> <br />Q = Peak discharge, ft3/s <br />C = Coefficient of runoff <br />I = Rainfall intensity, inch per hour, for time of con- <br />centration for watershed, for given frequency <br />A = Area of watershed in acres <br />S = Slope, feet per 1,000 feet <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />A C value of 0.32 was adopted for use on Lake Andes-Wagner Unit. <br /> <br />I <br />I <br /> <br />Rainfall intensities were read from a depth-duration curve drawn for data <br /> <br />in Weather Bureau Technical Paper 40. The area and slope were determined <br /> <br /> <br />from 1:24,000 topographical maps. <br /> <br />Water Rights <br /> <br />I <br /> <br />Water rights for the Lake Andes-Wagner Unit must be obtained by the <br />Irrigation District or operating agency from the South Dakota Department of <br />Water and Natural Resources (SDDWNR). Th~ Lake Andes-Wagner Irrigation <br />District has obtained a future use permit: for 1,040 ft3/s from Lake Francis <br />I <br />I <br /> <br />I <br /> <br />I <br /> <br />Case. <br /> <br />1 <br /> <br />The SDDWNR has been contacted concerning issuance of water rights for the <br /> <br />project. They stated that there is unappropriated water available in the <br />I <br /> <br />I <br /> <br />Missouri River. <br /> <br />I <br /> <br />Supply System <br /> <br />I <br /> <br />The irrigation supply and distribution system for the project will include <br /> <br /> <br />the main pumping plant, six large re1ift ?umping plants, five smaller <br /> <br />1 <br /> <br />I <br /> <br />I <br /> <br />34 <br /> <br />I <br />
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