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<br />. <br />I <br />. <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />C. PIPE DESIGN <br /> <br />The proposed storm sewer pipes as indicated on Exhibit.No. III <br /> <br />were designed utilizing a Mannings "N" C" tor of .013. <br /> <br />D. STREET DESIGNS <br /> <br />The capability of the street to carry the major runoff in the majority <br />- -------,"-- <br /> <br />of the Town of Yuma represents a single greatest.storm sewer <br /> <br />in any community. By using the attached nomograph figure <br /> <br />No. I, "nomograph for flow in triangular gutters" the capa- <br /> <br />cities for existing and proposed streets can be determined. <br /> <br />Table No. III lists the major streets in th" area, along with the <br /> <br />anticipated-"'-<3:rrying capa,,~ti~ as exists or to be proposed. <br /> <br />By using the calculations shown in Figure I and discussed in the <br /> <br />preceeding paragraph, a reasonable street design may be <br />, <br /> <br />accomplished. It is recommended, however, that a qualified <br /> <br />drainage engineer be consulted to provide a drainage check <br /> <br />along with information regarding gutter details, overflow <br /> <br />capabilities, street inlets, gutter pans, cross drains, and <br />--~--- <br /> <br />any other related item. <br /> <br />44 <br />