Revised Stormwater Management Report

Project: WEH County: Essex County Municipality: West Orange Design Storm: 25 yr storm PIPE SECTION Computed By: ASM Checked By: PWA Date: 6/26/2024 Revised: SUBCATCH INCREMENTAL CUMULATIVE MENT AREA FROM TO Area (Acres) "C" A x C Ac A x C (acres) K-14.1 K-14 K-13 K-MH.12 K-MH.11 K-10 K-9 K-MH.8 K-7.1 K-7 K-6 K-MH.5 A-5 A-6 A-7 K-4 K-3 K-2 K-1 K-17 K-18 A-2 A-4 A-1 A-1.1 A-MH.1 C-5 C-6 C-7 C-8 K-14 K-13 K-MH.12 K-MH.11 K-9 K-9 K-MH.8 K-6 K-7 K-6 K-MH.5 K-3 A-6 A-7 K-4 K-3 BRR-1 K-1 BRR-2.1 K-18 EX. INLET A-1 A-1 A-1.1 A-MH.1 BRR-2.2 C-6 C-7 C-8 BPP-6 0.15 0.05 0.21 0.00 0.00 0.06 0.34 0.00 0.48 0.07 0.20 0.00 0.32 0.03 0.03 0.14 0.04 0.06 0.06 0.12 0.12 0.07 0.42 0.16 0.35 0.00 0.16 0.50 0.16 0.12 0.91 0.89 0.63 0.00 0.00 0.95 0.65 0.00 0.45 0.95 0.75 0.00 0.46 0.79 0.85 0.80 0.84 0.95 0.95 0.95 0.84 0.95 0.79 0.95 0.40 0.00 0.40 0.40 0.40 0.40 0.14 0.04 0.13 0.00 0.00 0.06 0.22 0.00 0.22 0.07 0.15 0.00 0.15 0.02 0.03 0.11 0.03 0.06 0.06 0.11 0.10 0.07 0.33 0.15 0.14 0.00 0.06 0.20 0.06 0.05 0.14 0.18 0.31 0.31 0.31 0.06 0.59 0.59 0.22 0.29 1.03 1.03 0.15 0.17 0.20 0.31 1.37 0.06 0.12 0.11 0.21 0.07 0.33 0.55 0.69 0.69 0.06 0.26 0.32 0.37 NOTES: 1) Design method used is Rational Method 2) Refer to Weighted Runoff Coefficient table for calculation of incremental areas and C values TIME OF CONCENTRATION I PEAK RUNOFF PIPING INPUT Tc to Tc in Q cum. Final Tc Q to Inlet Dia. Length Inlet Pipe (In/Hr) for Pipe (min) (CFS) (In) (Ft) (min)

ation of incremental areas and C values TIME OF CONCENTRATION I PEAK RUNOFF PIPING INPUT Tc to Tc in Q cum. Final Tc Q to Inlet Dia. Length Inlet Pipe (In/Hr) for Pipe (min) (CFS) (In) (Ft) (min) (min.) (CFS) 10.00 0.04 10.00 6.80 0.95 0.95 15 31.0 10.00 0.05 10.04 6.80 0.27 1.22 15 22.0 10.00 0.28 10.09 6.80 0.88 2.11 15 116.0 10.00 0.50 10.37 6.80 0.00 2.11 15 206.0 10.00 0.28 10.87 6.68 0.00 2.07 15 136.0 10.00 0.05 10.00 6.80 0.41 0.41 15 22.0 10.00 0.11 11.15 6.56 1.44 3.87 15 113.0 10.00 0.13 11.26 6.56 0.00 3.87 15 158.0 10.00 0.02 10.00 6.80 1.50 1.50 15 30.0 10.00 0.05 10.02 6.80 0.48 1.97 15 22.0 10.00 0.13 11.39 6.56 0.98 6.76 15 140.0 10.00 0.23 11.52 6.44 0.00 6.63 15 163.0 10.00 0.05 10.00 6.80 1.02 1.02 15 46.0 10.00 0.06 10.05 6.80 0.14 1.16 15 24.0 10.00 0.16 10.11 6.80 0.20 1.36 15 114.0 10.00 0.05 10.27 6.80 0.75 2.11 15 22.0 10.00 0.09 11.75 6.44 0.19 8.82 24 106.0 10.00 0.08 10.00 6.80 0.41 0.41 15 22.0 10.00 0.12 10.08 6.80 0.41 0.82 15 41.0 10.00 0.11 10.00 6.80 0.75 0.75 15 40.0 10.00 0.23 10.11 6.80 0.68 1.43 15 133.0 10.00 0.22 10.00 6.80 0.48 0.48 15 187.0 10.00 0.19 10.00 6.80 2.24 2.24 15 89.0 10.00 0.11 10.22 6.80 1.02 3.74 15 46.0 10.00 0.05 10.33 6.80 0.95 4.69 15 36.0 10.00 0.11 10.38 6.80 0.00 4.69 15 133.0 10.00 0.09 10.00 6.80 0.41 0.41 15 83.0 10.00 0.76 10.09 6.80 1.36 1.77 15 221.0 10.00 0.30 10.85 6.68 0.40 2.14 15 91.0 10.00 0.68 11.15 6.56 0.33 2.43 15 159.0 Man. "n" 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 PIPING DATA Pipe Full Pipe Actual Pipe Capacity

0 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 PIPING DATA Pipe Full Pipe Actual Pipe Capacity Velocity Velocity (cfs) (fps) (fps) 0.0289 14.27 11.63 3.72 0.0100 8.39 6.84 3.55 0.0100 8.39 6.84 4.81 0.0100 8.39 6.84 4.81 0.0143 10.04 8.19 5.19 0.0100 8.39 6.84 1.76 0.0653 21.45 17.49 10.12 0.0872 24.79 20.21 10.90 0.0903 25.23 20.57 5.96 0.0100 8.39 6.84 4.58 0.0675 21.81 17.78 14.08 0.0295 14.42 11.76 11.36 0.0486 18.51 15.09 4.38 0.0102 8.48 6.91 3.43 0.0305 14.66 11.95 4.49 0.0100 8.39 6.84 4.81 0.0446 62.09 19.77 9.81 0.0045 5.63 4.59 1.47 0.0067 6.87 5.60 2.53 0.0074 7.22 5.89 2.37 0.0200 11.87 9.68 4.36 0.0439 17.59 14.34 2.64 0.0137 9.83 8.01 5.36 0.0101 8.44 6.88 6.51 0.0307 14.71 11.99 9.66 0.0926 25.54 20.82 12.06 0.0480 18.39 14.99 2.12 0.0050 5.94 4.84 3.77 0.0055 6.23 5.08 4.22 0.0032 4.75 3.87 3.91 Slope (ft/ft)