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Interoffice Memorandum <br />FlNt5HED GRADE <br />S4FFUSE <br />VEWOUNE 90L5 <br />SEC71f}N: TYPICAL REFUSE PILE BENCH <br />r -n <br />o 20 4: <br />sew r rr rEfr <br />Refuse Bench Typical <br />SEDCAD Input (Exhibit 82 Appendix F) <br />structure #9 6% rap Char nef ► <br />Ditch to Pond <br />Trapezoidal Riprap Channel. Inputs: <br />Materiai: Riprap <br />Left Right Freeboard Freeboard Freeboard <br />bot Sidesiope Sideslope Shope (%) MIL x <br />Width (ft) Ratio Patio Depth (ft) % of Depth (VvD) <br />5.00 1.5;1 1.5:1 20.0 0.50 <br />Riprap Channel Resuks. <br />FADER Method - Steep Slope Design <br />wig Freeboard w} Freeboard <br />Design Discharge: <br />11B.05 tfs <br />_ Depth: <br />Top Width: <br />1.43 ft 1.83 ft <br />9.29 ft 14.79 ft <br />Velocity: <br />11.54 fps <br />X -Sedan Areas <br />10.23 sq ft <br />Flydraullc Radluv <br />1.007 ft <br />Froude dumber: <br />1.94 <br />Manning's n: <br />4.0580 <br />Dmin. <br />7.00 in <br />D50: <br />12.DD in <br />I woo; <br />18.00 in <br />