OCR Text |
Show 114 PBOBLEMS OF IMPERIAL, VALLEY AND VICINITY. From Big Sandy Creek diversion is made immediately to the project which covers a gross acreage of 610,000, of which a large part is non-irrigable because of roughness. BLACKS FORK, SMITHS FORK, AND BIG MUDDY. Irrigation development from these streams and particularly from Blacks Fork is proportionately greater than from any other tributary of the Green in Wyoming. In an average year present rights take all the water from Blacks Fork from July 1 until the end of the season. On Smiths Fork and Big Muddy development has not gone so far and present rights do not exhaust the water until about July 15. Without reservoirs, extension of irrigation from these streams will be limited, but at present new permits for water are being taken out rapidly and many adjudications have been made in the last two years. No reservoir sites have been found in Smiths Fork and Big Muddy and no new projects have befen outlined, therefore the probable extension of irrigated land is not separately treated but is part of the grand total of miscellaneous extensions given in the general summary. On Blacks Fork reservoir sites exist as follows, nothing being known as to foundation conditions: On stream headwaters: Acre-feet. No. 1................................................................. 900. No. 2................................................................. 6,300 No. 3................................................................. 4,600 Offstream in irrigated area, Peterson....................................... 18,000 Total.............................................................. 29, 800 Water supply.-The estimated average flow below most irrigation is as follows: Acre-feet. September-April......................................................... 17,000 May.....y.............................................................. 22,000 June.................................................................... 29,000 July..................................................................... 2,000 August......................................................................... Total.............................................................. 70,000 Duty of water per acre-New extensions. Acre-feet. May...................................................................... 0. 25 June.......................................................................92 From storage: July....................................................................92 August..................................................................40 Storage must provide 1.32 acre-feet for each acre, which gives, if all the reservoirs are feasible, 22,000 acres which can be irrigated in addition to the present. This will not give a full supply to the land each year, as some water will be lost and in low years there will not be sufficient to fill the reservoirs. Possible projects. Area in acres. Reclamation Service, Stubblefield report, Churchs Butte___............... 25,000 Carey Act: Uinta No. 2, Carey Act, list 10........................................ 15,000 Uinta No. 3, Carey Act, list 70........................................ 33,000 |
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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] : |