Page 36

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Page 36

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Colorado River problem

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http://digital.library.unlv.edu/u?/dig,8

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340 THE COLORADO RIVER PROBLEM On the basis of cost as shown in Table 16 the average cost will be about $4.75 per acre-ft. TABLE 16. Reservoir. Capacity, in acre-feet. Cost. Flaming Gorge.................. 3,120,000 $16,000,000 Juniper.......................... 1,550,000 4,000,000 Dewey............................ 2,270,000 11,200,000 Bluff............................. 1,400,000 8,800,000 Totals........................ 8,340,000 $40,000,000 The Flaming Gorge site is now under permit to the Utah Power and Light Company and will probably be developed in the near future. The Juniper and Dewey sites can be developed for about 4,000,000 acre-ft. at a cost of about $4 per acre-ft. In addition to these sites, there are possible reservoir sites at Glenn Canyon, Boulder Canyon, and Mohave, the capacities and areas of which are shown on Fig. 12. [Fig. 12. Area and Capacity Curves for Reservoirs.] Glen Canyon.—This reservoir is near the head of the Canyon Section of the main river. The Southern California Edison Company explored the Glen Canyon site and found bed-rock at a maximum depth of 80 ft. The walls and bed of the canyon at the dam site are massive red sandstone, and the canyon walls rise almost vertical to heights of 1,000 to 1,500 ft. The engineers of the U. S. Bureau of Reclamation state that the sandstone is so poorly cemented that its safe bearing power will not be much more than 20 tons per sq. ft. Three