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<br />- <br />o::!" <br /><:'. <br />N <br />c. <br />1:.. <br /> <br /> <br />New Waddell Dam (artist's concept) <br /> <br />Of the aqueduct system's 336 miles, approximately 13 percent, or 43 miles, consists of <br />underground pipelines, tunnels, siphons, and pumping plant discharge lines. The longest <br />section of pipeline is the last 14.6 miles of the Tucson Aqueduct, which will convey water to <br />the San Xavier Indian Reservation. Except for testing, the pipeline construction was finished in <br />January 1991. <br /> <br />Power to run the CAP comes from the Navajo Generating Station near Page, Arizona. The <br />Bureau of Reclamation is entitled to 24.3 percent of the electricity produced there for CAP <br />purposes. <br /> <br />Major features of the CAP (other than the aqueducts) include 14 pumping plants, three <br />tunnels and eight siphons. Along the aqueducts are turnouts through which water is delivered <br />to CAP customers, and check structures, or gates, to help control the movement and level of <br />water in the aqueducts. <br /> <br />Operators remotely control the entire system with computer assistance from the CA WCD' s <br />headquarters building in north Phoenix. Release of water at the turnouts is controlled from the <br />headquarters. Along the CAP's aqueducts -- Hayden-Rhodes, Salt-Gila, and Tucson -- are 46 <br />turnouts and 39 check gates through which water flows before entering water user systems. <br /> <br />Other CAP components include electric transmission lines and switchyards, earthen dikes <br />to protect aqueducts and downstream areas from floods, wildlife and cattle crossings, over- <br />chutes and culverts to move local storm runoff water over and under the aqueducts, and road <br />bridges. All aqueducts are fenced for the protection of people and wildlife. <br /> <br />