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<br />SECTION 3.0 <br />CONCLUSIONS <br /> <br />3.1 Conclusions <br /> <br />The South Platte River channd has changed somewhat from the as_constructed condition due to <br />sedimentation, degradation and. to a ksser extent, the occurrence of \'olunt~>er willows and other <br />trees, However, based on the information developed by this study, theca pacity of the ehannclized <br />portion of the South Platte Rivcr is suffieicnt tOCOOlain the entire lOO-yeardischarge withslIffieicnt <br />freeboard to provide a safety factor to the calculated capacities. Then;fore. the gw'Wth of native <br />vegetation on the channe1 banks has not significantly reduced the capacity of the Corps' constructed <br />channel. <br /> <br />SECTION 4,0 <br />REFERENCES <br /> <br />I. SOlllh Plulle Rh'er Down,<lream Channel Improvemenls. Chatfield Lake, Colorado. <br />Opuali<ln and .'vIaimenan"" Manual, U.S. Army Engineer Distrkt, Corps of Engineers, <br />Omaha, Nebraska, 1990. <br /> <br />2. SOlllh Flalle River Channel Capacily Analysis, Manning's "n" Vul"e Ref'orl, ICO:-: <br />Engineering,lnc.,ApriI19<J8, <br /> <br />3, FIQud llu;urd Arl'u Delinealwn, So"ln Plalte River, Denver Mt'lrllpolili.1n Area. Sand <br />Creek 10 Oxford Ave., Wright Wat<:r Engineers, lnc" September 1985. <br /> <br />, <br />