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<br />St ream &- <br /> <br />Drainage Peak Discharges (efs) <br />Area sq .mi '-___lCI:~):!:~..Q.::Y~_J~::E___c')l~~O..::)'E <br /> <br />Location <br />Fountain Creek <br />Just D/S of Woodland <br />Park, X-Section 4, <br />Fig. 1. <br /> <br />1.0 <br /> <br />:')SO 1,630 2,(;"0 <br /> <br />3,9110 <br /> <br />At point "1"", Fig. 1. <br /> <br />3.1 <br /> <br />1 _seo 3,000 3,900 <br /> <br />7,(!O(") <br /> <br />V/S of Crystola Creek <br />Confl., X-Section 5, <br />Fig. 1. <br /> <br />5.4 <br /> <br />1,920 6,010 5,270 <br /> <br />R , 3 .~; () <br /> <br />At D/S limit of <br />detailed study reach; <br />county line, <br />X--Section 6, Fig. 1. 11.5 <br /> <br />3,COO 5,800 7,5~0 '4,600 <br /> <br />Trout Creek <br /> <br />The peak rates of runoff for each :,:tceam studied in detail in <br />this basin of about 25 sq, mi. were ohtained using the SCS metho- <br />dology aided by the computer progra:' TR--20. The analysis was <br />based on a storm duration of 2!.-hr dnd a Type II distribution, <br />that applies to the mountainous areaE. of western Colorado. <br /> <br />The basin was divided into 14 runoff drE'as, as show~ in Figure 2. <br />The resulting peak discharges for all flooding sources to be <br />studied in detail were obtained from the TR-20 printout included <br />as Appendix B. A summary of discharge,'; is prE,sented below, The <br />100 -year peak discharge on Loy Gulch at Sta t e Highvlay 67 of 810 <br />cfs compares favorably \dth an earlier estimate of 84-1 cfs usinJ2 <br />the graphical 5C5 procedure (Ref. 4). <br /> <br />-9- <br />