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<br />Flooding Source <br />Sand Gulch <br /> <br />Description of Reach <br /> <br />Mouth <br />Downstream of Tributary <br />Confluence <br />Upstream of Tributary <br />Confluence <br />Upstream Study Limit <br /> <br />Sand Gulch <br />Tributary <br /> <br />~louth <br />Upstream Study Limit <br /> <br />Fortification <br />Creek** <br /> <br />~louth <br />21,200 Feet Upstream <br />of ~louth <br />Upstream Study Limit <br /> <br />Lay Creek <br /> <br />Downstream Study ~i~it <br />Downstream of Big Gulch <br />Confluence <br />Upstream of Big Gulch <br />Confluence <br />Upstream Study Limit <br /> <br />Big Gulch <br /> <br />Mouth <br />Upstream Study Limit <br /> <br />Tributary 1 <br /> <br />At Mouth <br />Upstream Study Limit <br /> <br />Tributary 2 <br /> <br />At Mouth <br />Upstream Study Limit <br /> <br />Peak Discharges (cfs) <br />10 SO 100 500 <br /> <br />325 <br />325 <br />245 <br />245 <br /> <br />137 <br />137 <br /> <br />1270* <br /> <br />1240 <br />1091 <br /> <br />2100 <br /> <br />2100 <br /> <br />noo <br />noo <br /> <br />lZ30 <br />lZ30 <br /> <br />1,275 <br />1,275 <br /> <br />1000 <br />1000 <br /> <br />590 <br />590 <br /> <br />2100* <br /> <br />2050 <br />1804 <br /> <br />2850 <br /> <br />2850 <br /> <br />1480 <br />1480 <br /> <br />16Z0 <br />1620 <br /> <br />*Includes flow diversions and overbank storage effects. <br /> <br />2650 <br /> <br />2650 <br /> <br />1950 <br />1950 <br /> <br />1025 <br />1025 <br /> <br />3300* <br /> <br />3600 <br />3168 <br /> <br />3400 <br /> <br />3400 <br /> <br />1720 <br />1720 <br /> <br />1860 <br />1860 <br /> <br />192 <br />192 <br /> <br />87 <br />87 <br /> <br />4950 <br />4950 <br /> <br />:\ 900 <br />:\ ')00 <br /> <br />z:\75 <br />2Y75 <br /> <br />,12()0* <br /> <br />1:'400 <br />109l? <br /> <br />(lOOO <br /> <br />'jO()O <br /> <br />:iOO() <br />:iOOO <br /> <br />3150 <br />3150 <br /> <br />"*Flow fluctuations between reach end points (See FIll Report). <br /> <br />It should be noted that for the flood discharges computed by the <br />U,S. Army Corps of Engineers, the results listed in Table 2 include <br />flow reductions caused by flow diversions and overbank storage. <br />The reductions were computed using the HEC-2 cDmputer program. For <br />the remainder of the flooding SDurces studied, constant discharge <br />values were listed for a reach if no greater than 20% difference <br />existed in end point flows. <br /> <br />-4- <br />