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<br />The peak discharges calculated at the study site are as follows: <br /> <br />ARKANSAS RIVER <br /> <br /> Drainage Peak Discharges ( ds) <br /> Location Area (Sq. Mi.) 10 50 100 500 <br />1. Downstream Limit 327 2252 2810 3029 3523 <br />2. Upstream Limit 303 2120 2646 2852 3317 <br /> 1. Qs = 0.8099 Qg <br /> 2. Qs = 0.7626 Qg <br /> <br />Comparison of the results of this analysis with other studies in <br />the site (See Figure 9) show good agreement. <br /> <br />Evans Gulch <br /> <br />For Evans Gulch, the peak discharges for floods of the 10-, 50-, <br />100-, and 500-year recurrence intervals were computed using <br />TM-l. The supporting calculations are shown in the appendix of <br />this report and the results are as follows: <br /> <br />EVANS GULCH <br /> <br />Drainage <br />Location Area (Sq. Mi.) <br /> <br />1. Downstream Limit 7.8 <br /> <br />Peak Discharges (cfs) <br />10 50 100 500 <br /> <br />2. Upstream Limit <br /> <br />4.0 <br /> <br />108 <br />71 <br /> <br />166 <br />106 <br /> <br />190 <br />121 <br /> <br />255 <br />159 <br /> <br />Since the basin size of Evans Gulch is small, a comparison with <br />other studies in the area is difficult. Figure 14 shows the <br />comparison of the results of this analysis with other studies in <br />the area. The comparison shows a reasonable agreement. <br /> <br />-6- <br />