AZ vs. CA:24 California Exhibits, Vol. XXIV; Miscellaneous

page 171

PROBLEMS OF IMPERIAL VALLEY AND VICINITY. 171 Between frosts (summer), 150 days. Elevation, 5,000 feet. Transportation, Santa Fe Railroad. Irrigation season, April to September, inclusive, 6 months. Duty of water, 4 feet at diversion. Water supply, Little Colorado River. Irrigation flan.1-Diversion from the Little Colorado River to the north side in the northwest corner of township 17 north, range 20 east. Diversion again to north side in southeast corner township 21 north, range 15 east, about 35 miles down the river. Diversion to south side at same point as the latter north side diversion. Diversion to south side and to Tucker Flats reservoir about midway between the above two diversions. Use of Tucker Flats and Forks reservoirs. " Lands.-The irrigable lands lie largely in the bottoms and are easily reached and lie well fdr irrigation. Diversion from the river is possible at almost any point. Water supply.-Gaging stations have been maintained as follows • . Stream flow records. Station. Stream. Period. Average annual discharge during period of record. Holbrook....... Woodruff....... Winslow....... Little Colorado........ .....do................. Chevlon Creek........ March, 1905, to April, 1907.......:................ March and April, 1905; August, 1905, to April, 1907; all 1917; parts of 1918 and 1919. January, 1906, to December, 1907; January, 1916, to December, 1920. 170,000 95,000 .63,000 All streams flow very erratically and are subject to short, flashy floods. Reserroirs.-For control of these floods reservoir sites have been surveyed as follows: Reservoir sites. ' Site. Stream. Height of dam. Area. . Capacity. Woodruff___ Little Colorado.................... .do... Fed. 100 85 Acres. 3,160 5,020 3,730 3,850 Acre-feet'. 109,000* 148,000 54 000 118,000 90,000 Forks...... La Roux..... La Roux wash......'.............. Side stream....................... 35 50 Tucker Flats___ Apache___ Inland from Chevlon Creek...... The reservoirs listed were planned to be filled as follows: La Roux, feeder from Rio Puerco. Tucker Flats, feeder from Little Colorado. Apache, feeder from Chevlon Creek. Forks and Woodruff are directly on the Little Colorado. La Roux site may be eliminated; because of its small capacity it would be soon filled with silt brought down by the La Roux wash. 1 This is only one of many possible plans.