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<br /> <br />. <br /> <br />. <br /> <br />,/ <br /> <br />Precipitation and Runoff <br /> <br />The principal sources of precipitation that cause damaging runoff <br />are from general rain over the watershed, in frequent thrunderstorms <br />occurring over small areas, and from snowmelt. The To~m of Saguache <br />was flooded in 1932 and 1957. <br /> <br />The average annual precipitation at Saguache, Colorado is 8.10 <br />inches, 68 years of record. The maximum recorded 211-hour precipitation <br />at AlalllOsa is 1. 33 inches. Recorded temperature varies from a high of <br />102 degraes to a low of 27 degrees below zero. Frost-frae gowing se&son <br />&verages 103 days. <br /> <br />Estimated runoff from a 100-year 211-hour storm of 2.65 inches of <br />precipitation is 0.25 inches. Runoff from the maximum prob&hle pre- <br />cipitation of 16 inches on 229 squ&re miles is 11.18 inches. Estimated <br />water yield at the Curtis Ranch site in the Upper Watershed based on <br />g&uge record is 27,550 acre feet on a 50 percent chance f'requcancy. <br /> <br />Economic Data <br /> <br />There are 68 landowners and 38 operating units in the watershed <br />averaging 18110 acres of privatcaly owned land. Most of the operating <br />units above the Town of Saguache have summar grazing permits with the <br />/" Forest Service cmd Bureau of Land Managelll2nt. Thirty-seven or the <br />thirty-eight operating units are cooperators with the Center Soil <br />Conservation District, with twcanty Resource Conservation Plans, including <br />twelve Great Plains Contracts. Hore than 50 percent or the land &hove <br />the proposed structure site is controlled by the Forest Service, Bureau <br />or Land ~lanagement or is under agreellt3nt with the Soil Conservation <br />District. <br /> <br />The average current market value of the upland is $50 per acre and <br />$200 per acre for bottomland. <br /> <br />All of the 68 landowners will benefit by the projcact. The estimated <br />gross value of a crop composite acre is about $30 for the Uppsr Saguache <br />W&tershed and about $20 for the Lower Sagu&che \'l&tershed. The r<>tum <br />for the bottomland is extrenrely low resulting mostly rrom a short supply <br />of irrigation water for late season use. <br /> <br />The watershed is a livestock producing area based mostly on a cow- <br />calf operation. The general economy or the operating units is good. <br /> <br />Within the watershed is the Town of Saguache, (population 6112). <br />Other towns in the County are: Center (population 1,1170), Bonanza, <br />(population 10), Crestone (population 311), and Hoffat (population 98). <br /> <br />,/ <br /> <br />II <br /> <br />>:" <br /> <br />0679 <br /> <br />