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<br />- (, ~." ',. <br />'~I...i'~"" <br /> <br />2 <br /> <br />. <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, Morgan, 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 Dam 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 District <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 huntin9 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 I ts 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 warmwater <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 wlldllfe- <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 />