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<br />I <br /> <br /> <br />624 <br /> <br />utilize flows from Williams Creek through a feeder canal. It <br />would have a capacity of 41,000 acre feet with a dam 100 feet <br />high. The other would be on the Piedra River about 8 miles <br />above the town of Piedra, with a capacity of 74,000 acre feet <br />and a concrete arch dam 280 feet in height. <br /> <br />A tunnel 2,900 feet long below the latter reservoir would <br />deliver water to the Dudley power plant on Piedra River, about <br />2 miles distant from the dam, after the reservoir releases had <br />passed through the First Box power plant at the base of the dam. <br /> <br />Total installed capacity would, be 7,500 Kw, and saleable <br />energy would average 40,000,000 KViH annually, of which 31,000,000 <br />DvH would be firm. In order to pay construction costs and opera- <br />tion, maintenance and replacement costs in 50 years it would be <br />necessary to sell firm energy at 11.7 mills and secondary energy <br />at 2.5 mills per KWH. <br /> <br />The transmission system would extend about 40 miles to an <br />existing power system near Durango. <br /> <br />The <br />pletions <br />proj ect. <br />would be <br /> <br />water supply studies did not consider the stream de- <br />which might be caused by the potential O'Neal Park <br />If this project should be built, power production <br />somewhat decreased. <br /> <br />Total cost of the power development was estimated to be <br />about $8,500,000 with annual operation, maintenance and replace- <br />ment costs of $84,000; The benefit-cost ratios are 0.86 to 1 <br />and 0.73 to 1 as computed respectively for 100 year and 50 year <br />analysis periods. <br /> <br />Alternative Plans for Irriqation Development <br /> <br />Two alternate plans for the O'Neal Park area were developed <br />which provided for areas of 5,000 and 6,000 acres. The benefit- <br />cost ratios were found to be 0.83 to 1 and 0.79 to 1. <br /> <br />A third plan was considered for the irrigation of 3,600 <br />acres on ~artinez Creek, on the head of Stollsteimer Creek and <br />along the San Juan River. In this case the benefit-cost ratio <br />was 0.77 to 1. <br /> <br />For the development invol~ing Turkey, Fourmile and McCabe <br />Creeks, for the benefit-cost ratio was 0.71 to 1. In this case <br />there would be 3,190 acres of new land and 3,240 acres of sup- <br />plemental service land. <br /> <br />Recommendation <br /> <br />It is stated in the report that, in view of the findings, <br />