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<br />HYDROLOGIC ANALYSIS <br /> <br />HIN1"'ESOTA CREEK AT PAONIA, COLORADO <br /> <br />Hc=thod of Analysis <br /> <br />Summary of <br />Calculations <br /> <br />100-year <br />Discharge <br /> <br />1. Regression Equations, <br />CWCB/USGS TM-l, "Manual <br />For Estimating Flood <br />Characteristics of Natural- <br />Flow Streams in Colorado" <br /> <br />Ungaged site <br />Southern Plateau Region <br />Q100 = 103AiJ,710 <br /> <br />A = 54 sq. mi. <br /> <br />1,750 cfs <br /> <br />2. Regional Extrapolation, <br />USGS, Water Supply Paper 1683, <br />"Magnitude and Frequency of <br />Floods in the United States <br />Part 9, Colorado River Basin" <br /> <br />Region A <br />Hydrologic Area 5 <br />Q2.33 = 0.506Ao;76H1,90 <br />A = 54 <br />H = 7.5 <br />Q2.33 = 482 cfs <br />Q100 = 2.1 Q2.33 <br /> <br />1,012 cfs <br /> <br />3. Comparisons with other studies <br /> <br />a. North Fork, Gunnison River, <br />U.S. Army Corps of Engineers <br /> <br />b. Anthracite Creek <br />Colorado Water Conservation <br />Board <br /> <br />CSM Ratio = 16 cfs/sq. mi <br />A = 54 sq. mi. <br /> <br />CSM Ratio = 30 cfs/sq. mi <br />A = 54 sq. roi. <br /> <br />864 cfs <br /> <br />1,620 cfs <br />