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<br />. <br /> <br />. <br /> <br />NO.4 <br /> <br />C"': <br />N <br />C <br />- <br /> <br />YAMPA VALLEY PROJECT <br /> <br />'- <br /> <br />C. I. Location and water source: Upper Yampa Valley, (Moffat and <br />Routt Counties). Yampa River and <br />tributaries (williams Fork, Fish <br />Creek) . <br /> <br />2. Estimated cost: <br /> Hayden Mesa Unit $ 13,000,OOO <br /> Toponas unit 9,000,000 <br /> Wessels Unit 2,750,000 <br /> Total cost $ 24,750,000 <br /> Cost allocated to <br /> irrigation 20,000,000 <br />3. Irrigated acreage: <br /> Hayden Mesa 22,940 <br /> Toponas 21,545 <br /> Wessels 6,750 <br /> Total acreage 51,235 <br />4. Average cost per acre: $390 <br />5. Average annual additional stream depletion: <br /> Hayden Mesa 32,200 a.f. <br /> Toponas 23.900 a.f. <br /> Wessels 7,370 a.f. <br /> Total stream depletion 63.470 a.f. <br />G. Average annual additional stream depletion <br /> per acre of irrigated land: 1.24 a.f. <br /> <br />7. Benefit-cost ratio: <br />Hayden Mesa <br />Toponas <br />Wessels <br /> <br />I to I <br />I to I <br />1. 2 to 1 <br /> <br />Average benefit-cost <br />ratio 1.07 to I <br /> <br />The foregoing data is based on the physical plan of de- <br />velopment contained in the reconnaissance report of 1957. The report <br />is therefore relatively current except that the methods of computing <br />benefit-cost ratios and nonreimbursable items have changed since <br />