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<br />001700 <br /> <br />The dam >Iould be a' combin&tion earth and rock-fill structure with <br /> <br /> <br />a maximum heil'ht of 105 feet. The length of the creEt >Iould, be 4,600 <br /> <br />feet. The outlet. capacity would be 1,200 second-feet, ann the spillway <br /> <br />cepgcity, 2,640 second-feet. <br /> <br />The total e"tinated coot of enlarging the T>lin Lakes ~eservoir is <br /> <br />$9,179,000. <br /> <br />Tw~kes to Grani te Po'"..r Canal. <br /> <br />From the enlarged Twin Lakes Reservoir,a canaJ. of 1,200 second- <br /> <br />foot capacity would transport the water south>lard 5.3 miles to the <br /> <br /> <br />Granit.e Powerplant at the existing Clear Creek (Otero) Reservoir. <br /> <br />The canal would traverse terrain conR~ing of glacial moraine and a <br /> <br />section of glacial drift. The entire length of the canal would be <br /> <br />concrete-lined. <br /> <br />The cost of the power canal is estimated to be $1,769,000. <br /> <br />Grani t.e Powe~lan t <br /> <br />The Granite Powerplant would be located at the northeast corner <br /> <br /> <br />of the exiating Clear Creek (Otero) Reservoir. The penstock connec- <br /> <br />ting the canal and the powerplant is 1,000 feet long. The draft tube <br /> <br />would be located below the high water surface elevation in order to <br /> <br />take advank\ge <br /> <br />of the extra head provided by dra>ldO>lll of the reservoir <br />a^ ~~::2'0~ ~~?- fEet. A wasteway would be provided by <br /> <br />and to produce <br /> <br />rnea~R of a siphon spillway in the conal just above the entrance to <br /> <br />the penstock. The \.ater bype.ssed would, flow do.m a 66-inch steel <br /> <br />pipe alongside the penatock into the aaIDe stilling basin as the one <br /> <br />43 <br />