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<br />TUTTLE APPLEGATE INC. <br />HALLETT MATERIALS - WINKLER QUARRY <br />MANNING'S EQUATION FLOW CALCULATIONS <br />TA 88-146 <br />15-DPG/TA <br />OPEN CHANNEL FLOW - CONTROLLING DRAINAGE OUTLET 100 - YEAR <br />SUB-BASIN C <br />Q -____°_______ <br />TARGET FLOW 110.1 <-----------100 - YEAR STORM EVENT <br />BOTTOM (FT) 15.0 <br />SS:1 3.0 <br />SLOPE (~) 1.008(-----------AVERAGE SLOPE <br />N 0.030 <br /> <br />DEPTH (FT) <br />-------------- <br />1.21 (-----------PLUS FREEBOARD <br />2,5' OVERALL <br />---------- <br />--------------- <br />WT PER --------- <br />22.65 <br />AREA (SF) 22.54 <br />HY RAD 1.00 <br />__________________a===== <br />VEL (FT/SEC) 4.94 (-----------LESS THAN 5 FPS <br />TOP FT 22.26 <br />FLOW (CFS) 111.3 <br />