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STORM SEWER SIZING WORKSHEET
STORM SEWER DESIGN COMPUTATION SHEETSheet 1 of 1Project: RSI MARINEJob No.: 23953 James R. Hill, Inc.Location: CHANHASSEN, MNPrepared by: VUN PLANNERS / ENGINEERS / SURVEYORSDescription: Storm Sewer Comps for 10-Year Rain EventDate: 5/31/2022 2999 West County Road 42, Suite 100 Burnsville, MN 55306Pipe Type: RCP/PVC 952 / 890-6044 fax 952 / 890-6244Manning's n : 0.013 Structure No.A C C x A Σ tiQ dUPSTREAM DOWNSTREAM Length Slope Dia. Q-full MH Vel.-full t- travelFrom To acres coef. C x A min. intens. c.f.s. Rim Inv. Bld Rim Inv. Depth ft. ft./ft. in. c.f.s. size ft./sec. min.Remarks1 CB-105 CBMH-104 1.40 0.50 0.70 0.70 10.0 6.1 4.29 741.30 737.803.50741.30 737.214.091180.50% 15 4.57 3.72 0.53 OK 12 CBMH-104 CBMH-103 0.44 0.70 0.31 1.01 10.5 6.0 6.03 741.30 737.214.09741.20 735.945.261261.01% 15 6.48 5.29 0.40 OK 23 CBMH-103 CBMH-102 0.53 0.70 0.37 2.13 10.9 6.0 12.75 741.20 735.745.46741.20 733.877.331261.48% 18 12.79 7.24 0.29 OK 34 CBMH-102 CBMH-101 0.71 0.70 0.50 2.63 11.2 5.8 15.34 741.20 733.677.53741.30 732.548.761131.00% 21 15.84 6.59 0.29 OK 45 CBMH-101 FES-100 0.00 0.70 0.00 3.08 11.5 5.7 17.58 741.30 727.8513.45727.50 727.500.00670.52% 27 22.38 5.63 0.20 OK 567 CB-106 CBMH-103 1.50 0.50 0.75 0.75 10.0 6.1 4.60 752.92 742.0010.92741.20 737.004.201623.09% 12 6.26 7.97 0.34 OK 189 CB-107 CBMH-101 0.90 0.50 0.45 0.45 10.0 6.1 2.76 742.86 738.864.00741.30 738.233.07631.00% 12 3.56 4.54 0.23 OK 1