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<br /> <br />utilization in the Rio Grande Basin in Ne,l Mexico. The <br />project water supply comes from the share of Colorado River <br />water allocated to New Mexico by the Upper Colorado River <br />Basin Compact; <br /> <br />The need for additional water supplies ih the Rio Grande <br />:Basin is critical. Uses have continued to expand with the <br />marked population growth as supplies have continued to <br />diminish because of prolonged drought as well as mining of <br />ayailable ground water resources. The imported waters are <br />to be used to provide the city of Albuquerque with 48,200 <br />acre-feet annually for municipal and industrial purposes and <br />supplemental water for irrigation as authorized. An annual <br />allocation of 5,000 acre~feet of water is made available for <br />fish and wildlife and recreation purposes at Cochiti Reservoir. <br /> <br />The project's diversion facilities will consist of three <br />concrete diversion dams on the Rio Blanco, Little Navajo, and <br />Navajo Rivers, all in Colorado. The diversion dams will be <br />concrete) ogee-type structures and have appropriate headworks <br />and sluicing facilities. Bypasses of water will be made as <br />necessary at each diversion point to maintain a live stream <br />for fishing and to furnish water downstream to users who have <br />prior water rights. <br /> <br />The conveyance system consists of three concrete lined tunnels <br />varying in size from 8 feet 7 inches to 10 feet 11 inches in <br />diameter and two siphons with 8-foot diameters. The Blanco <br />Tunnel extends from the Rio Blanco to the Little.Navajo River, <br />a distance of about 9 miles, and has a capacity of 520 cubic <br />feet per second. Oso Tunnel extends from the Little Navajo <br />River to the Navajo River, a distance of about 5 mile~and <br />has a capacity of 550 cubic feet per second. Azotea Tunnel <br />lies under the Continental Divide and extends from the Navajo <br />River to Azotea Creek in the Rio Grande Basin, a distance of <br />about 13 miles. Azotea Tunnel has a capacity of 950 cubic <br />feet per second. <br /> <br />Approximately 7.25 miles of stream channel on Azotea Creek <br />and 1<[il].01, Creek between the outlet portal of Azotea Tunnel <br />and the headwaters of Heron Reservoir have been channelized. <br />The channel realinement will prevent erosion due to the <br />increased flow, assisted by the installation of concrete drop <br />structures and riprap bank protection. <br /> <br />2 <br />