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Last modified
1/26/2010 12:50:58 PM
Creation date
10/11/2006 11:49:12 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8142.400
Description
Trinidad Project - Reports
State
CO
Basin
Arkansas
Water Division
2
Date
4/1/1964
Author
Corps of Engineers
Title
Irrigation Report - Trinidad Project - Colorado - Corps of Engineers - Upper Arkansas River Basin - Volume II
Water Supply Pro - Doc Type
Report/Study
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<br />O~1615 <br /> <br />. <br /> <br />Modified Criteria <br /> <br />The modifications in the operation that were requested by the <br />district necesffitated changes in the criteria used to determine the <br />maximum storable flow under the transferred Model storage right <br />which made similar changes in the criteria used to determine the <br />spills and bypasses to John Martin Reservoir. The reservation of <br />6,000 acre-feet of the irrigation pool for Model required the <br />irrigation pool to be separated into two accounts, the Project <br />Account and the Model Account. This separation made it mandatory <br />that criteria be developed for storage distribution and reservoir <br />releases from each account. <br /> <br />The following is the modified criteria used in these studies: <br /> <br />(1) Maximum Storable Flows <br /> <br />The maximum storable flow under the transferred Model <br />storage right is 700 c.f.s. less the simultaneous <br />diversions to the Model lands at any tilne when John <br />Martin Reservoir is not spilling. In addition, there <br />will be a right for storing, in the unused sediment <br />capacity, any flood flows which would have been <br />. surplus to the basin. <br /> <br />(2) Spills and Bypasses <br /> <br />The criteria used to determine the required spills or <br />bypasses to John Martin Reservoir are: <br /> <br />(a) <br /> <br />When John Martin Reservoir is not spilling, all <br />flows in excess of 700 c.f.s. minus Model <br />diverSions, plus the irrigation release require- <br />ment, must be bypassed. After the irrigation <br />pool has been filled or a cumulative total of <br />20,000 acre-feet has been stored during the <br />year, all flows in excess of the irrigation <br />release requirement must be bypassed. <br /> <br />(b) <br /> <br />When John Martin Reservoir is spilling, the <br />irrigation and joint use pools can be filled <br />before any bypasses are required. According <br />to the original studies shown in Appendix A, <br />April 1961, the average flow for some months <br />could be completely utilized within the <br /> <br />. <br /> <br />3 <br />
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