Laserfiche WebLink
• ESTIMATE OF FLOOD CHARACTERISTICS FOR MUNGER CREEK ABOVE <br />WASTE ROCK DISPOSAL SITE, MUNGER CREEK DRAINAGE BASIN, <br />GARFIELD COUNTY, COLORADO <br />Procedure for ungaged sites with streams located entirely in <br />one flood .characteristic region: <br />1 - Identify flood region: Southern Plateau (From Figure 2) <br />2 - Select equations for peak discharges and depths of selected <br />recurrence - interval floods: See Table 4 <br />3 - Compute basin and climatic parameters required for 3: <br />Drainage Area A = 6.3mi2 (planimetered) <br />4 - Solve Equations: <br />• <br />Peak Discharge RI Floods <br />410 = 59.7 (6.3)•709 = 220cfs <br />450 = 89.1 (6.3)'709 = 328cfs <br />4100 = 103 (6.3)'710 = 380cfs <br />4500 = 137 (6.3)'713 = 509cfs <br />Depths of RI Floods <br />D10 = 1.25 (6.3)•261 = 2.0 ft <br />D50 = 1.54 (6.3)•254 = 2.9 ft <br />D100 = 1.64 (6.3)•254 = 2.6 ft <br />D500 = 1.98 (6.3)•239 = 3.1 ft <br />25 +28 to -22 <br />34 +40 to -28 <br />36 +42 to -30 <br />44 +53 to -35 <br />Reference: CWCB Technical Manual No. 1, 1976 <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 />• <br />