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<br />TRANSFER ROUTES <br /> <br />BACKGROUND <br /> <br />A number of transfer routes were considered in the early stages of <br /> <br /> <br />the study. In April 1980, the Corps recommended to the High Plains <br /> <br /> <br />Study Council that four of the transfer routes be given further con- <br /> <br /> <br />sideration. On 17 April 1980, the High Plains Study Council passed <br /> <br /> <br />Resolution Number 8 which authorized the study of these routes. The <br /> <br /> <br />Omaha District was assigned Alternative 2 which is now designated as <br /> <br />Route A. This route begins at Lake Francis Case and runs southwestward <br /> <br /> <br />through Nebraska to terminal storage on the South Fork Republican River <br /> <br />in the vicinity of Bonny Reservoir in northeastern Colorado. <br /> <br />CRITERIA <br /> <br />The design and cost criteria used for the water transfer studies <br />are found in appendix E. <br /> <br />The primary means of transferring water would be by trapezoidal, <br /> <br />concrete-lined canals. The canals would have 1 vertical (V) on 1\ hori- <br /> <br /> <br />zontal (H) or IV on 2H sideslopes, velocities of 5 feet per second or <br /> <br />less, and freeboard of 3 to 6 feet. The transfer routes consist of a <br /> <br /> <br />series of ridge line canals connected by pumping plants where needed to <br /> <br />provide lift to higher elevations. Water would flow by gravity between <br /> <br /> <br />the pumping plants. The pumping plants would be semiattended indoor <br /> <br /> <br />plants using turbine-type centrifugal pumps driven by electric motors. <br /> <br /> <br />Each plant would have from three to nine pump units, as needed, with <br /> <br /> <br />one operational standby. Each plant would have a concrete discharge <br /> <br /> <br />line for delivery to the canal at a higher elevation. Inverted siphons <br /> <br />would be used to cross deep valleys. The siphons would be constructed <br /> <br /> <br />of precast, prestressed, concrete cylinder pipe with a 20-foot maximum <br /> <br />A29 <br />