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<br />shown on plate 5. Table 2 gives the p'lak discharges for Wolf Creek with <br /> <br />coincident flows and total flows on the Arkansas River. <br /> <br />TABLE 2 <br />COINCIDENT FLOWS AT GRANADA <br /> <br />Return <br />Interval <br />(Years) <br /> <br />Wolf Creek <br />Peak "Flow <br />(c.f.s.) <br /> <br />Arkansas Ri:ver <br />Coincident Flow <br />(c.f.s.) <br /> <br />Arkansas Rive <br />Total Flow <br />( c . f . ~_:l___ <br /> <br />10 <br />is <br />25 <br />50 <br />100 <br />SPF <br /> <br />6,500 <br />9,200 <br />12,500 <br />18,500 <br />27,000 <br />41,000 <br /> <br />5,600 <br />8,100 <br />11,500 <br />17,500 <br />26,000 <br />42,000 <br /> <br />12,100 <br />17,300 <br />24,000 <br />36,000 <br />53,000 <br />83,000 <br /> <br />22, Sediment. The average sed.iment production from the J.22 square <br /> <br />mile drainage area of Wolf Creek is approximately 0.45 acre-foot per square <br /> <br />mile per year. About 55 acre-fe'~t of sediment are contributed annually by <br /> <br />the Wolf Creek drainage area above Granada. Part of this sediment will be <br /> <br />deposited in the area liest of th,~ proposed levee between the railroad and <br /> <br />the highway subj ect to ponding from large flows on Wolf Creek. Other <br /> <br />sediment will be diverted along the levee and deposited in the area north <br /> <br />and east of town. Under present conditions with the existing levee system <br /> <br />there are maintenance requirements from sediment depositi.on. The recom- <br /> <br />mended plan would not change these requirements. <br /> <br />23. Flood Plains. Flood plains for the 100-year and standard project <br /> <br />floods on Wolf Creek at Granada were developed from water surface profiles. <br /> <br />11 <br />