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• ESTIMATE OF FLOOD CHARACTERISTICS FOR MUNGER CREEK <br />IN SALT CREEK DRAINAGE BASIN, GARFIELD COUNTY, COLORADO <br />Reference: McCain, J. F. and R. D. Jarrett. Manual for <br />Estimating Flood Characteristics of Flow Streams in Colo- <br />rado, CWCB, CDNR, Technical Manual No. 1, 1976. <br />Procedure for ungaged sites with streams located entirely in <br />one flood-characteristic region: <br />1 - Identify flood region: Southern Plateau Region (From <br />Figure 2) <br />2 - Select appropriate regression equations for peak discharges <br />and depths of selected recurrence-interval floods: <br />• See Table 4. <br />3 - Compute required basin and climatic parameters: <br />Drainage Area A = 7.7mi2 (planimetered) <br />4 - Solve Equations: <br />Q10 = 59.7 (7.7)0.709 = 254cfs <br />Q50 = 89.1 (7.7)0.709 = 379cfs <br />Q100 = 103 (7,7)0.710 = 439cfs <br />Q500 - 137 (7.7)0.713 = 587cfs <br />D10 = 1.25 (7.7)0.26 1 = 2.1 ft <br />D50 = 1.54 (7.7)0.254 = 2.6 ft <br />STD Error of Estimate, 8 <br />Average Range <br />47 +58 to -36 <br />50 +62 to -38 <br />53 +66 to -40 <br />65 +84 to -46 <br />25 +28 to -22 <br />34 +40 to -28 <br />• <br />