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<br />. <br /> <br />COLORADO wATER CONSERVATION BOARD <br />823 State Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br /> <br />January 5-6, 1984, Board Meeting <br /> <br />SUMMIT RESERVOIR REHABILITATION <br /> <br />Introduction <br /> <br />The Summit Reservoir is the largest of 3 reservoirs owned <br />and operated by the Summit Reservoir and Irrigation Company. It <br />is located 12 miles northeast of the Town of Cortez in southwest <br />Colorado. It was originally built in 1905 and was enlarged to <br />its present capacity of 4800 AF in 1938. Since then no improve- <br />ments of any kind have been made to this reservoir. This reser- <br />voir, along with two others in the system, provides about a 50% <br />supply of water to 4,000 acres of privately owned land in the <br />area. <br /> <br />Problem <br /> <br />. <br /> <br />The problem with Summit Reservoir is a general deterioration <br />of tile embankment due to lack of attention over a long period of <br />time. As a result of this deterioration, the State Engineer has <br />advised the owners that if they do not take corrective action the <br />allowable storage will be restricted. As the current yield of <br />this irrigation system only provides 50% of the water needed for <br />full crop production in the area, such a restriction would create <br />quite a financial hardship on the water users. <br /> <br />Current Status <br /> <br />In October, 1982, the Summit Reservoir and Irrigation Com- <br />pany submitted an application to the CWCB for assistance. The <br />Board subsequently authorized 50% funding for a feasibility study <br />on the proposed project. That feasibility study has now been <br />completed by Harris Water Engineering, a Durango consulting engi- <br />neering firm, and is the basis of recommendations on this proj- <br />ect. <br /> <br />. <br /> <br />Proposed Project <br /> <br />The project as proposed would involve rehabilitating the <br />existing Summit Reservoir by: (1) recontouring some of the areas <br />below the West and South Dikes to improve drainage away from the <br />toe of those dikes, (2) raising the dike crests to a uniform ele- <br />vation so that a proper freeboard could be maintained, (3) back- <br />filling below the existing west outlet, and (4) placing a filter <br />blanket on the middle South Dike to stabilize the embankment. <br />The total estimated cost of the project is $70,000. <br /> <br />524 <br />sum/res <br /> <br />;--:. <br />