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<br />Colorado Water Conservation Board <br />823 State CentennIal Building <br />1313 Sher.....n Street <br />Denver, CO 80<03 <br /> <br />the Sheep Drawh<>ain, the mean annu"l precipitation is about 12 Inches. <br />Temper~turc9 range from a mean of about 24. F in January to a mean of <br />about 73' F In July. The_jar Gall tYp<'lIlnthe !Mslnaro of the <br />Olney-Kim-Otero or tho Weld-Colby Soil aSSOCiations. Theae are gene- <br />rally ~derately aloplng medium to moderately-conrse textured aoila. <br />Vegetation is predominantly grassland ur Irrigated cropland, with few <br />treea. <br /> <br />Flood Plain Analysis <br /> <br />STUDY AREA DESCRIPTION <br /> <br />The Sheep Draw basin is croused by U.S. Righway 34, alternate Busi- <br />ness Route U.S. Highway 34, and Colorado Highway 257. County roads are <br />lo~ted On most section lInes. The !Mstn at present Is essentially <br />rural. However, urbanizatlnn is beginning at a few locations On the <br />eaatern edge of the basin. <br /> <br />Sheep Draw, " right-bank tributary of the Cache la PoudreRiver, <br />1$ located weat of Greeley in Weld County. It b~gt~s about 8 ~!lcs <br />west of Greeley snd flows northes~tw3 1 to its confluence with the <br /> <br />The bastn topography is characterized by rolling hIlls and narrow <br />~tre.:l" 'r"lle~.~. ~Ievntc"~ 1" the Main range fr.,,,, o>'''''t 5050 f"ct to <br />46~0 feet above mean Se" level. Sheep Draw slopes ahout 20 to 50 feet <br />pcr,.ile In the atudyreach. Th.echannelgener"llyrangesfromaboutl <br />toIOf"..t in depth ,,,>d 30 to 150 feet In top width. Figur"" 1 through <br />12onthefollowingp"gesarephotographallhlchil1uattatechannel <br />conditions to the sturly rO:lch. Al i sceM" "re loc.~t"d alnnl!: Sheep <br /> <br />The reach studied e~tends from the Sheep Draw confluence with the <br />Cache la Poudre River upstream to near Colorado Highway 257, a distance <br />of about 7 mHos. Develop...nt on the floodplainw!th!n this rcach ta <br />relatively sparse. The mo"t cammon form of development Is that assoc1- <br />ated wtth farmsteads and an agricultural area. At present, the more <br />oongeated develop~nt associated with urban areas hao not reached into <br />the Sheep DrBw flood plain. ~owever, Buch development 18 quite cloae <br />1"80"",...re",,. <br /> <br />Cache I. Poudre River just northwest << Creeley. ,"0 basin 1. about , <br />",ile8 ,. width and about , ..Uea long. ,", Sheep Dr.... drain"lIe "rea b <br />about 15.0 square ..11es. , -. "' !>, baaln " shoom ". plate ,. <br /> <br />Ora... <br /> <br />Thccl11ll..telsac..iarld. lllll""Cral,warID8,""",Crsal1dIll11<ltQ <br />cold winters prevail. Into""" thllr1dcrstorm", 80"",t1m,," of cloudburst <br />intensity. can occur during tho Sl1mtl1pr months. At Greeley, adjacent ~n <br /> <br />, <br /> <br />, <br />