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<br />. <br /> <br />. <br /> <br />As required by our contract the floodway on the Arkansas River <br />was recalculated to match the City's S-3 zone. The floodway was <br />calculated by hand for the reach that is controlled by the <br />backwater effects of Fountain Creek (Sections 4006 through <br />4010). <br /> <br />. <br /> <br />. <br /> <br />From the upstream detailed study limits to the -corporate limits <br />the Arkansas River was studied by others using approximate <br />methods. The boundaries determined during this study are shown <br />on the accompanying maps. <br /> <br />. <br /> <br />EAST DRY CREEK <br /> <br />. <br /> <br />For East Dry Creek the approximate flood boundaries from the <br />upstream limit of the detailed study to Highway 47 were <br />calculated using flood discharges computed from the publication <br />"Rainfall-Runoff Modeling and Preliminary Regional Flood <br />Characteristics of Small Rural Watersheds in the Arkansas River <br /> <br />. <br /> <br />. <br /> <br />Basin in Colorado, 1980" <br />field inspected cross <br />construction plans. <br /> <br />and normal depth calculations using <br />sections and asbuilt Highway 47 <br /> <br />. <br /> <br />. <br /> <br />-14- <br /> <br />. <br />