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<br />Sheep Draw Hydrology <br /> <br />. <br /> <br />GENERAL <br /> <br />This section describes hydrologic studies for the Sheep Draw <br /> <br /> <br />basin. Sheep Draw is a tributary of the Cache la PoudreRiver and is <br /> <br /> <br />located west of Greeley. Discharges for the 10-, 50-, 100-, ami <br /> <br /> <br />5OD-year floods were developed for existing and projected urbanized <br /> <br /> <br />land use conditions. <br /> <br />BASIN Df<iCRIPTION <br /> <br />Sheep Uraw, a right-bank tributary to the Cache la Poudre River, <br /> <br /> <br />has its source near the U.S. Highway 34-Colorado Highway 257 inter- <br /> <br /> <br />section 8 miles west of Greeley, Colorado. From its source, Sheep Draw <br /> <br /> <br />flows in a general northeasterly direction to business route U.S. High- <br /> <br /> <br />way 34, then north to its confluence with the Cache la Poudre River. <br /> <br /> <br />The 15-square-mile basin is primarily rural but is expected to urbanize <br /> <br /> <br />within the next few years. Elevations in the basin range from 4690 to <br /> <br /> <br />5050 feet alove mean sea level. A map of the Sheep Draw basin is shown <br /> <br /> <br />on plate 4. <br /> <br />EXISTING STRUCTURES <br /> <br />Four reservoirs were considered in the hydrologic analysis of the <br /> <br /> <br />basin. One is on Sheep Draw in sec. 13, T. 5 N., R. 67 W., approximately <br /> <br /> <br />1 mile upstream from U.S. Highway 34. Two others are located on <br /> <br /> <br />tributaries in section 13. Another reservoir is on a tributary in sec. <br /> <br /> <br />4, T. 5 N., R. 66 W., approximately 1 mile upstream from the mouth of <br /> <br /> <br />Sheep Draw. During late spring and summer, water from these reservoirs <br /> <br />is used to irrigate nearby cropland. Although flood control is not a <br /> <br />40 <br /> <br />. <br />