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<br />.rM~~ <br />L0v-.J <br /> <br />. <br /> <br />2 <br /> <br />One of the purposes of the Narrows Unit Is.to provide supplemental <br />Irrigation water.to about 166,370 acres of land of the Lower South <br />Platte Conservancy DIstrict In northeastern Colorado. This irrigated <br />acreage lies along both sides of the South Platte River in the reach <br />below Narrows Dam and extends to the Colorado-Nebraska State line <br />in Weld, Horgan, Washington, Logan, and Sedgwick Counties. The Narrows <br />Unit also would serve the purposes of flood control, fish and wildlife, <br />recreation, and water quality Improvement. <br /> <br />The main project feature, Narrows Oam and Reservoir, would be located <br />on the South Platte River about 7 miles upstream and west of Fort <br />Horgan, Colorado. Existing canals and distribution system would be <br />used to distribute the water. Jackson Reservoir's present function <br />of storing water for the Lower South Platte Water Conservancy Olstrlct <br />would be abandoned with the water stored for the purpose transferred <br />to Narrows Reservoir. Jackson Reservoir, however, would be maintained <br />In the interest of general recreation and fish and wildlife. Project <br />features and the service area are shown on Plate I at the end of this <br />report. <br /> <br />. <br /> <br />Project Effects <br /> <br />Our analysis of project effects on fish and wildlife was predicated <br />on projections made of fishing and hunting and other related uses under <br />conditions expected to prevail without the project and with the project <br />In operation, both sets of projections being made for the 100-year <br />life of the project. The differences between such estimates, made <br />on an annual basis, were then attributed to the project as a measure <br />of Its effects. <br /> <br />Our analysis, without any fish and wildlife recommendations, reveals <br />that the project would result In an annual fish and wildlife benefit <br />of $198,100, consisting of a gain of 101,000 man-days of wannwater <br />fishing for a benefit of $151,500; a gain of 5,600 man-days of water- <br />fowl hunting for a benefit of $25,200; a gain of 3,000,000 waterfowl <br />use-days for a benefit of $20,400; and 2,000 man-days of wildllfe- <br />oriented recreation for a benefit of $1,000. <br /> <br />In addition to the gains noted above, the Narrows Unit is expected to <br />result In annual losses as follows: Upland-game hunting, 24,800 man- <br />days; other sport hunting, 800 man-days; and 1,100 fur-animal pelts, <br />The project also Is expected to result In a loss of 1,000 waterfowl <br />raised a year, from 1,900 without the project to 900 with the project. <br /> <br />. <br />