OCR Text |
Show 37 lined channel approximately 360 feet in width which is divided into four channels directing water into desilting basins.24 The initial capacity of the All-American Canal is 15,155 c.f.s (approximately 30,062 acre-feet per day) and it has a width of 232 feet at normal water surface, a bottom width of 160 feet and a depth of 21 feet.25 Its initial capacity remains unchanged for a distance of 14.7 miles to Siphon Drop at which point 2,000 c.f.s. can be delivered to the Yuma Project through the Siphon Drop Power Plant. From that point to Pilot Knob, approximately 6 miles distant, the capacity of the All-American Canal is 13,155 c.f.s. At Pilot Knob, the water may be discharged into the Colorado River through the Pilot Knob Wasteway. Pursuant to section 7 of the Boulder Canyon Project Act and Imperial's 1932 contract, Imperial is given the right to develop the hydroelectric power on the canal below Syphon Drop, including Pilot Knob. Pursuant to the 1952 supplement to this contract, Mexican Treaty water and other water which wotild otherwise pass over Imperial Dam may be diverted by the District through the All-American Canal to Pilot Knob, and there dropped through Pilot Knob Power Plant back to the Colorado River in the United States. From Pilot Knob, for a distance of 15.5 miles to Drop No. 1, the takeout point of the Coachella Canal, the All-American Canal has a capacity of 10,155 c.f.s. Continuing west, parallel to the Mexican border, for approximately 44 miles the canal gradually reduces in capacity from 7,755 c.f.s. to 2,655 c.f.s.26 Construction was initiated by the United States in August, 1934, and the first significant use of the canal was made in 1940.27 Costs of construction have been allocated 24Tr. 7771 (Dowd). 25Calif. Ex. 214. saIbid. 27Tr. 7767, 7774 (Dowd). |
Source |
Original Report: State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Imperial 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 |