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Storm Sewer Design Computation Sheet STORM SEWER DESIGN COMPUTATION SHEET Sheet_1_of_1_ I BKBM ENGINEERS I Project: Carver County Service Center Chanhassen, MN Storm Sewer. 10 year design Job No.: Prepared by: Date: 8150 KAB March 13, 2008 Location: Description: Pipe Type: Manning's n : S. Factor: RCP; PVC 0.011 o % NOTE:c=J Structure No. or Trib. A C CxA 2; t I ua Upstream Downstream Length Slope Dia. Qf Ratio Vel..full t- travel From To Area No. acres coef. CxA min. intens. cJ.s. Rim Inv. Rim Inv. ft. % in. cJ.s. diD ft.lsec. min. 1 CB6 CBS 0.449 0.76 0.34 0.34 5.0 7.10 2.42 952.50 948.50 952.50 948.14 72 0.50t 12 2.98 3.79 0.32 2 CB5 EX CB4 0.154 0.86 0.13 0.47 5.0 7.10 3.36 952.50 948.14 949.95 946.15 94 2.12t 12 6.12 7.80 0.20 3 4 CB3 CB2 0.128 0.57 0.07 0.07 5.0 7.10 0.52 953.20 949.53 953.20 949.27 44 0.60t 8 1.11 3.18 0.23 5 ROOF CB2 0.131 0.95 0.12 0.12 5.0 7.10 0.88 954.40 949. 65 953.20 949.53 12 1. oot 8 1. 43 4.09 0.05 6 CB2 EX CBl 0 0.00 0.00 0.20 5.0 7.10 1.40 953.20 949.27 953.50 948.80 41 LISt 8 1. 53 4.38 0.16 CITY OF CHANHASSEN RECEIVED MAR 1 4 2008 CHANHASSEN PLANNING DEPT