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<br />r:::l <br /> <br />y, <br /> <br />....1 <br /> <br />ECONOMIC ANALYSIS <br /> <br />Project Cost <br /> <br />Cost estimate based on Janue.ry 1940 construction pri.ces has been <br /> <br />prepared for the Rifle Gap Dam and appurtenant wcrks, the Grass Valley <br /> <br />Canal improvements, the Dry Elk Laterals, and the Davie Ditch pumping <br /> <br />plant. The capital lump sum cost of such works to the Nation, the <br /> <br />annual COst with allowance for Ilroject operation and maintenance, and <br /> <br />the amortization of capital cost in 50 years with 3% interest is <br /> <br />summarized as follows: <br /> <br />Capital Cost to tJl~Ji~ <br /> <br />Rifle Gap Dam and Appurtenant Works <br />Grass Valley Cana.l Improvement <br />Dry Elk Laterals <br />Davie Ditch Pumping Plant <br /> <br />$1,189,000 <br />26,000 <br />15,000 <br />9,000 <br /> <br />Total Capital Cost <br /> <br />$1,2.39,000 <br /> <br />Annual Cost to the Nation <br /> <br />Project Operation & Maintenance Cost $ 2,600 <br />Amortization of capital cost in 50 years <br />with .3% interest 48,100 <br /> <br />Total Annual Cost of Project <br /> <br />$50,700 <br /> <br />Irrigation Benefits <br /> <br />An increase in the supply of irrigation water will provide for an <br /> <br />increase in the acreage of farm land under irrigation, an increase in <br /> <br />the acreage devoted to the growing of higher value crops and an <br /> <br />increase in the yield of all crops produced. The gross crop returns <br /> <br />of project lands under present conditions of inadequate water supply <br /> <br />and the returns expected with the application of project water have <br /> <br />been estiID~ted from a study of crop census of the area. These estimates <br /> <br />reflect normal long time crop prices and yieldS rather than those pre- <br />