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Show COMPACT-COMMENTS BY A. P. DAVIS A53 Answer 13. As to this, our field engineers report as follows: This plan appears infeasible, but as a possibility the Arizona Engineering Commission has considered and is considering the possibility of a diversion at this point to divert water for the lands lying along the Colorado River south of the dam site spoken of above, with the possibility of pumping water therefrom to moderate lifts. From this dam site south to a point about opposite Lighthouse Rock, the topography is such that a canal might be constructed. At or near Lighthouse Rock it might be possible to raise water in the distant future some 100 or 150 feet, passing through the Trigo and Chocolate Mountains, reaching the plain lying east of Castle Dome at an elevation that certain lands lying on the lower Gila might be served. The acreage and the difficulties encountered in this are not definitely known and the whole proposition only stands out as a remote possibility of the development of lands on the extreme lower Gila. Question 14- While I fully realize that the Colorado River compact makes no reference to the location of storage reservoirs on that strejim, yet, the subject is of great interest to the people of Arizona. I shall, therefore, appreciate it if you will make a brief comparison of the Bulls Head, Black Canyon, Boulder Canyon, Diamond Creek, and Glen Canyon dam sites. Question 15. For the same reason, I would like to have a summary of the available information relative to the Sentinel, San Carlos, and Solomon-ville dam sites on the Gila, and the Horseshoe and Camp Verde dam sites on the Verde River. Answers 14 and 15. The following table gives the data available in this office relative to these dam sites. Name Storage capacity (acre-feet) Estimated costJ Height Width at base (feet) of dam (feet) Depth to bedrock (feet) Character of rock in walls Horsepower developed San Carlos . 1, 600, 000 Horseshoe__________ Camp Verde________ Solomonville-Guthrie Sentinel .. _________ Bulls Head_____..... Boulder Canyon_____ Black Canyon_______ Diamond Creek: Ultimate________ Present_________ Glen Canyon________ 233, 421, 225, 2, 200, 2, 000, r31,400, 26, 500, '31, 400. .26, 500, $9, 792, 763 1,909,000 1, 701,800 4, 250,000 55, 000,000 50,000,000 249 166 210 140 130 155 594 558 222 200 20 Quarzite or quartzitic sandstone. Sandstone. 6,500 a 20,000 665 1, 250,000 340, 000 18,000,000 12,000,000 555 420 255 500 } 140 }«123 Basalt _. Granite_ /Volcanic breccia; la-\ tite, and andesite. 380 Granite___ Sandstone. «341,000 700, 000 600,000 700,000 600, 000 935, 000 200,000 500.000 1 Costs based on preliminary estimates and incomplete information; subject to revision in all cases. 2 Above low-water level or stream bed. 3 Developed at drop 20 miles below dam. 4 Foundation is lava or cemented gravel underlaid by sand and silt to a depth of at least 200 feet. • Assuming equated flow. 6 Drilling not completed. Note.-Average annual net evaporation loss measured at Roosevelt is 60 inches, and this figure has been the basis of evaporation estimates for most of the reservoir studies in this region. |
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Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : |