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SUB201600092 Calculations 2019-05-31
STORM SEWER DESIGN COMPUTATIONS North Pointe Subdivision Section 1 DATE: 12/18/2018 REVISED: 5/17/2019 REVISED: 1 2 3 PIPE SIZING Design Storm = 10 Year 100 Year 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 FROM TO IDA IMPERVIOUS RUNOFF "CA" Tc I10 Q10 I100 Q100 INV.ELEV. L S D Qcap V10 V100 Time Status POINT POINT ACRES ACRES "C" INC. ACC. MIN. IN/HR CFS IN/HR CFS UPPER LOWER FT FT/FT IN CFS FPS FPS MIN. 23 25 0.07 0.06 0.76 0.06 0.06 5.00 6.7 0.37 11.0 0.61 452.05 451.76 57.52 0.0050 15 4.57 2.3 2.6 0.42 OK 25 27 0.07 0.06 0.76 0.06 0.11 5.42 6.5 0.73 10.7 1.21 451.66 450.20 121.90 0.0120 15 7.07 3.8 4.4 0.53 OK 27 29 0.00 0.00 0.00 0.00 0.11 5.96 6.4 0.72 10.4 1.17 450.10 449.65 90.67 0.0050 15 4.57 2.8 3.2 0.54 OK 29 E12D° 0.43 0.33 0.76 0.32 0.72 5.82 6.4 4.59 10.5 7.52 445.96 443.43 63.25 0.0400 15 12.91 9.8 11.0 0.11 OK E12D E13 b 0.00 0.00 0.00 0.00 2.82 6.80 6.1 17.24 10.0 28.18 440.72 437.49 32.63 0.0990 30 129.03 18.6 21.3 0.03 OK E13 E15 0.00 0.00 0.00 0.00 4.20 7.00 6.1 25.45 9.9 41.57 437.39 437.28 22.17 0.0050 30 29.00 6.7 0.06 OK E15 E81 0.00 0.00 0.00 4.20 7.06 6.1 25.39 9.9 41.48 437.18 435.90 254.63 0.0050 30 29.00 6.7 0.63 OK E81 E83 0.00 0.00 0.00 g02 4.20 7.69 5.9 24.72 9.6 40.34 435.80 434.25 246.93 0.0063 30 32.55 7.4 0.56 OK 31 29 0.32 0.30 0.87 0.28 5.50 6.5 1.82 10.7 2.98 447.05 446.71 68.00 0.0050 15 4.57 3.6 4.0 0.32 OK 33 35 0.23 0.19 0.81 0.19 0.19 5.00 6.7 1.23 11.0 2.03 460.52 459.86 52.33 0.0126 15 7.25 4.1 4.7 0.21 OK 35 37 0.07 0.07 0.84 0.06 0.25 5.21 6.6 1.64 10.8 2.69 447.62 441.30 158.01 0.0400 15 12.91 7.3 8.4 0.36 OK 37 39 0.00 0.00 0.00 0.00 0.59 12.81 4.9 2.89 8.0 4.73 441.20 441.04 16.31 0.0100 15 6.46 5.2 5.8 0.05 OK 41 43 0.39 0.21 0.63 0.25 0.25 12.20 5.0 1.22 8.1 1.99 462.28 462.00 55.98 0.0050 15 4.57 5.3 6.0 0.18 OK 43 45 0.12 0.11 0.82 0.10 0.35 12.38 4.9 1.70 8.1 2.79 460.00 457.58 40.30 0.0600 15 15.82 8.6 9.8 0.08 OK 45 47 0.00 0.00 0.00 0.00 0.35 12.46 4.9 1.70 8.1 2.78 449.92 447.00 48.70 0.0600 15 15.82 8.6 9.8 0.09 OK 47 37 0.00 0.00 0.00 0.00 0.35 12.55 4.9 1.69 8.0 2.77 443.09 441.30 89.33 0.0200 15 9.13 5.8 6.6 0.26 OK 49 51 0.20 0.20 0.90 0.18 0.18 5.00 6.7 1.22 11.0 2.00 513.29 513.08 42.55 0.0050 15 4.57 7.3 8.4 0.10 OK 51 53 0.95 0.49 0.61 0.58 0.76 14.20 4.7 3.55 7.7 5.83 512.98 508.01 99.42 0.0500 15 14.44 9.9 11.3 0.17 OK 53 55 0.17 0.11 0.68 0.11 0.88 14.37 4.6 4.06 7.6 6.68 507.91 506.31 40.00 0.0400 15 12.91 9.5 10.7 0.07 OK 55 57 0.05 0.05 0.90 0.05 0.92 14.44 4.6 4.27 7.6 7.01 506.21 499.35 326.51 0.0210 15 9.36 8.6 9.7 0.63 OK 57 59 0.21 0.21 0.90 0.19 1.78 15.07 4.5 8.07 7.5 13.28 496.55 492.02 110.46 0.0410 15 13.07 8.5 0.22 OK 59 61 0.00 0.00 0.00 0.00 2.78 15.28 4.5 12.53 7.4 20.63 482.27 480.00 45.31 0.0500 18 23.48 9.5 11.1 0.08 OK 63 57 1.15 0.53 0.58 0.66 0.66 9.10 5.6 3.69 9.1 6.02 497.01 1 496.65 j 40.00 1 0.0090 1 15 6.13 0.0 0.08 OK 65 59 0.90 0.22 0.45 0.40 0.40 8.00 5.8 2.33 9.5 3.80 489.25 487.09 71.96 0.0300 15 11.18 .3 0.15 OK 67 69 0.76 0.41 0.63 0.47 0.47 7.60 5.9 2.81 9.7 4.58 487.57 487.33 40.00 0.0060 15 5.00 q04. 8 0.17 OK 69 59 0.14 0.14 0.90 0.12 0.60 7.77 5.9 3.52 9.6 5.74 487.23 487.02 26.68 0.0080 15 5.78 .5 0.08 OK 71 73 1.58 0.71 0.57 0.90 0.90 13.60 4.7 4.27 7.8 7.01 512.03 511.61 42.57 0.0100 15 6.46 5.7 0.12 OK 73 75 0.22 0.18 0.78 0.17 1.07 13.72 4.7 5.08 7.8 8.34 511.51 510.94 56.56 0.0100 15 6.46 5.9 0.16 OK 75 77 0.10 0.06 0.63 0.07 1.91 13.88 4.7 8.96 7.7 14.72 510.69 494.32 272.81 0.0600 18 25.72 8.9 9.6 0.51 OK 77 79 0.55 0.16 0.48 0.26 2.57 14.39 4.6 11.90 7.6 19.57 490.27 488.00 113.53 0.0200 18 14.85 9.4 0.20 OK 79 81 1.42 0.11 0.35 0.49 3.09 14.59 4.6 14.22 7.6 23.39 484.29 482.00 229.10 0.0100 24 22.62 8.1 0.47 OK 81 83 1.55 0.16 0.36 0.56 3.65 15.07 4.5 16.56 7.5 27.27 475.78 473.00 185.03 0.0150 24 27.70 10.0 11.4 0.31 OK 83 85 1.46 0.13 0.35 0.52 4.43 15.38 4.5 19.90 7.4 32.79 471.07 470.27 80.17 0.0100 24 22.62 8.2 0.16 OK 85 87 0.87 0.21 0.44 0.38 4.81 15.54 4.5 21.53 7.4 35.48 470.17 469.53 80.11 0.0080 30 36.68 7.9 9.6 0.17 OK 87 89 0.29 0.06 0.42 0.12 4.94 15.71 4.5 21.97 7.3 36.23 469.43 468.86 56.64 0.0100 30 41.01 8.6 10.6 0.11 OK 89 91 0.12 0.06 0.60 0.07 5.01 15.82 4.4 22.22 7.3 36.64 468.76 467.43 166.38 0.0080 30 36.68 8.0 9.6 0.35 OK 91 93 0.15 0.06 0.54 0.08 5.09 16.17 4.4 22.36 7.3 36.91 467.33 466.00 133.39 0.0100 30 41.01 8.7 10.6 0.26 OK 93 95 0.21 0.10 0.60 0.12 5.40 16.42 4.4 23.55 7.2 38.90 462.52 460.00 252.00 0.0100 30 41.01 8.8 10.7 0.48 OK 95 97 0.16 0.22 1.13 0.18 7.37 16.90 4.3 31.71 7.1 52.43 448.65 448.26 43.19 0.0090 30 38.91 9.0 0.08 OK 97 99 0.00 0.00 0.00 0.00 7.37 16.98 4.3 31.64 7.1 52.33 444.26 443.75 57.03 0.0090 30 38.91 9.0 0.11 OK 99 101 0.00 0.00 0.00 0.00 7.37 17.09 4.3 31.55 7.1 52.19 433.41 433.00 45.61 0.0090 30 38.91 9.0 0.08 OK 103 105 0.87 0.44 0.61 0.52 0.52 13.40 4.8 2.50 7.8 4.11 517.04 514.94 52.49 0.0400 15 12.91 8.3 9.5 0.11 OK 105 107 0.21 0.21 0.90 0.19 0.71 13.51 4.8 3.38 7.8 5.54 514.84 512.71 53.14 0.0400 15 12.91 9.0 10.2 0.10 OK 107 75 0.06 0.06 0.90 0.06 0.77 13.60 4.7 3.63 7.8 5.96 512.61 512.41 40.00 0.0050 15 4.57 4.2 0.16 OK 109 77 0.64 0.35 0.63 0.40 0.40 7.40 6.0 2.41 9.7 3.93 493.22 492.98 48.36 0.0050 15 4.57 8.2 9.3 0.10 OK ill 79 0.03 0.03 0.90 0.03 0.03 5.00 6.7 0.17 11.0 0.28 488.20 488.00 40.28 0.0050 15 4.57 1.8 2.1 0.37 OK 113 83 0.31 0.28 0.83 0.26 0.26 5.60 6.5 1.68 10.6 2.76 471.39 471.17 43.22 0.0050 15 4.57 3.5 3.9 0.21 OK 115 93 0.23 0.20 0.82 0.19 0.19 11.40 5.0 0.94 8.3 1.57 467.28 467.00 56.12 0.0050 15 4.57 3.3 3.8 0.28 OK 117 119 0.55 0.36 0.69 0.38 0.38 14.20 4.7 1.76 7.7 2.89 480.53 480.09 44.00 0.0100 15 6.46 4.6 5.2 0.16 OK 119 121 0.33 0.23 0.72 0.24 0.61 14.36 4.6 2.84 7.6 4.67 479.34 478.81 53.37 0.0100 24 22.62 5.0 5.7 0.18 OK 121 123 0.07 0.05 0.78 0.05 0.66 14.54 4.6 3.06 1 7.6 5.04 478.71 478.37 56.03 0.0060 24 17.52 4.3 4.9 0.22 OK 123 125 0.09 0.09 0.90 0.08 0.74 14.76 4.6 3.40 7.5 5.60 477.87 466.61 281.55 0.0400 30 82.02 8.4 9.7 0.56 OK 125 127 0.29 0.21 0.72 0.21 1.08 15.32 4.5 4.84 7.4 7.98 466.51 459.01 249.77 0.0300 30 71.03 8.4 9.7 0.49 OK 127 95 0.81 0.21 0.45 0.37 1.44 15.81 4.4 6.40 7.3 10.55 458.91 457.79 112.41 0.0100 30 41.01 6.2 7.1 0.30 OK 129 125 0.16 0.12 0.74 0.12 0.12 5.00 6.7 0.81 11.0 1.33 469.94 469.66 56.09 0.0050 15 4.57 2.9 3.3 0.33 OK 131 95 0.43 0.36 0.81 0.35 0.35 1 5.00 6.7 2.31 11.0 1 3.80 460.80 460.47 1 66.82 0.0050 15 4.57 3.6 4.1 0.31 OK 133 135 1.17 0.58 0.60 0.70 0.70 10.80 5.2 3.66 8.5 5.98 511.85 511.62 46.39 0.0050 15 4.57 4.2 0.18 OK 135 137 0.32 0.26 0.79 0.25 0.96 10.98 5.2 4.95 8.5 8.08 511.52 510.53 49.39 0.0200 15 9.13 7.7 8.5 0.11 OK 137 139 0.04 0.04 0.90 0.04 0.99 11.09 5.2 5.12 8.4 8.36 510.43 499.26 152.97 0.0730 15 17.45 9.1 10.1 0.28 OK 139 141 0.10 0.10 0.90 0.09 1.25 11.37 5.1 6.38 8.4 10.44 496.54 494.85 88.85 0.0190 18 14.47 8.2 9.2 0.18 OK 141 143 0.07 0.07 0.90 0.06 1.31 11.55 5.1 6.66 8.3 10.89 494.75 493.30 96.51 0.0150 18 12.86 8.3 9.3 0.19 OK UPPER "n" for STRUCTURE Pipe TOP (unitless) Upper Clearance (feet) Lower Clearance (feet) 459.05 0.013 5.750 6.168 459.18 0.013 6.270 3.703 455.15 0.013 3.800 3.153 454.05 0.013 6.840 10.820 455.50 0.013 12.280 7.260 447.25 0.013 7.360 4.220 444.00 0.013 4.320 4.100 442.50 0.013 4.200 END 454.05 0.013 5.750 6.090 466.79 0.013 5.017 6.099 467.21 0.013 18.340 3.450 446.00 0.013 3.550 END 469.53 0.013 6.000 6.277 469.53 0.013 8.277 4.167 463.00 0.013 11.828 2.750 451.00 0.013 6.663 3.450 520.68 0.013 6.140 5.613 519.94 0.013 5.713 4.674 513.93 0.013 4.774 6.324 513.88 0.013 6.424 3.040 503.64 0.013 5.840 2.829 496.10 0.013 12.335 END 503.64 0.013 5.380 5.740 498.45 0.013 7.950 7.761 495.51 0.013 6.690 6.930 495.51 0.013 7.030 7.833 520.21 0.013 6.929 7.354 520.21 0.013 7.454 7.210 519.40 0.013 7.210 3.158 498.98 0.013 7.209 5.800 495.30 0.013 9.009 4.380 488.38 0.013 10.605 3.500 478.50 0.013 5.426 4.628 476.90 0.013 4.228 6.139 478.17 0.013 6.239 6.895 478.26 0.013 6.995 8.446 478.38 0.013 8.546 6.540 475.04 0.013 10.020 5.420 467.92 0.013 16.768 9.487 460.25 0.013 13.487 4.000 450.25 0.013 14.340 END 524.04 0.013 5.750 6.280 522.47 0.013 6.380 5.435 519.40 0.013 5.535 5.735 500.47 0.013 6.000 4.752 495.40 0.013 5.949 6.050 478.59 0.013 5.950 6.076 475.11 0.013 6.579 6.790 487.53 0.013 5.750 6.270 487.61 0.013 6.270 7.154 487.96 0.013 7.254 7.590 487.96 0.013 7.590 8.082 477.19 0.013 8.182 6.945 468.46 0.013 7.045 7.629 477.19 0.013 6.000 6.280 467.80 0.013 5.750 6.200 518.85 0.013 5.750 6.582 519.45 0.013 6.682 4.910 516.69 0.013 5.010 3.037 503.55 0.013 5.513 3.071 499.42 0.013 3.171 3.179 Page 1 of 2 STORM SEWER DESIGN COMPUTATIONS PIPE SIZING Design Storm = 10 Year 100 Year North Pointe Subdivision Section 1 DATE: 12/18/2018 REVISED: 5/17/2019 REVISED: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 UPPER °n" for STRUCTURE Pipe Upper Clearance Lower Clearance FROM TO IDA IMPERVIOUS RUNOFF "CA" Tc I10 Q10 I100 Q100 INV.ELEV. L S D Qcap V10 V100 Time Status POINT POINT ACRES ACRES "C" INC. ACC. MIN. IN/HR CFS IN/HR CFS UPPER LOWER FT FT/FT IN CFS FPS FPS MIN. TOP (unitless) (feet) (feet) 143 145 0.15 0.15 0.90 0.13 2.27 11.75 5.0 11.46 8.3 18.74 489.83 489.21 103.21 0.0060 24 17.52 6.0 0.29 OK 497.98 0.013 6.150 7.239 145 147 0.00 0.00 0.00 0.00 2.27 12.03 5.0 11.35 8.2 18.57 489.11 487.39 132.67 0.0130 24 25.79 8.5 9.5 0.26 OK 498.45 0.013 7.339 6.484 147 149 0.08 0.08 0.90 0.07 3.53 12.29 5.0 17.49 8.1 28.63 486.56 485.77 78.87 0.0100 24 22.62 8.0 0.16 OK 495.87 0.013 7.314 4.283 149 151 0.19 0.16 0.80 0.15 3.68 12.46 4.9 18.13 8.1 29.69 485.67 476.63 173.75 0.0520 24 51.57 8.1 9.2 0.36 OK 492.05 0.013 4.383 2.778 151 153 0.20 0.16 0.79 0.15 4.24 12.81 4.9 20.65 8.0 33.83 473.46 470.85 144.96 0.0180 24 30.34 8.2 0.29 OK 481.41 0.013 5.950 3.149 153 155 0.36 0.29 0.78 0.28 4.94 13.11 4.8 23.83 7.9 39.07 463.85 450.47 139.39 0.0960 24 70.07 8.7 9.5 0.27 OK 476.00 0.013 10.149 3.030 155 157 0.00 0.00 0.00 0.00 4.94 13.37 4.8 23.63 7.8 38.76 450.37 450.02 23.56 0.0150 24 27.70 6.7 0.06 OK 455.50 0.013 3.130 END 159 139 0.21 0.17 0.80 0.17 0.17 5.00 6.7 1.11 11.0 1.82 496.99 496.79 40.55 0.0050 15 4.57 3.1 3.5 0.22 OK 503.99 0.013 5.750 5.513 161 143 1.49 0.63 0.55 0.83 0.83 9.20 5.5 4.59 9.0 7.48 490.98 490.58 40.00 0.0100 15 6.46 5.8 0.12 OK 497.98 0.013 5.750 6.150 163 165 0.23 0.12 0.61 0.14 0.14 6.70 6.2 0.87 10.1 1.43 491.65 490.70 47.34 0.0200 15 9.13 4.8 5.5 0.17 OK 496.90 0.013 4.000 5.747 165 167 0.67 0.35 0.62 0.41 0.55 6.87 6.1 3.38 10.0 5.52 490.60 490.20 40.02 0.0100 15 6.46 5.4 6.0 0.12 OK 497.70 0.013 5.847 6.247 167 169 0.19 0.16 0.81 0.16 0.71 6.99 6.1 4.31 9.9 7.04 490.10 489.61 49.38 0.0100 15 6.46 9U24.6 0.09 OK 497.70 0.013 6.347 5.141 169 147 0.79 0.40 0.60 0.48 1.19 9.00 5.6 6.62 9.1 10.79 488.11 487.31 40.18 0.0200 15 9.13 70.09 OK 496.00 0.013 6.641 7.314 171 151 0.60 0.38 0.68 0.41 0.41 5.00 6.7 2.71 11.0 4.46 474.41 474.21 40.02 0.0050 15 4.57 40.16 OK 481.41 0.013 5.750 5.950 173 153 0.79 0.31 0.54 0.42 0.42 8.20 5.8 2.43 9.4 3.97 470.77 47014 62.97 0.0100 15 6.46 60.15 OK 477.16 0.013 5.140 4.610 175 177 0.39 0.25 0.69 0.27 0.27 5.00 6.7 1.78 11.0 2.92 504.37 504.17 39.76 0.0050 15 4.57 4.6 5.2 0.15 OK 511.87 0.013 6.25 6.45 177 179 1.17 0.57 0.59 0.70 0.96 5.15 6.6 6.38 10.9 10.48 503.92 503.70 22.31 0.0100 18 10.50 9.5 10.4 0.04 OK 511.87 0.013 6.45 6.30 179 181 0.00 0.00 0.00 0.00 0.96 5.18 6.6 6.37 10.8 10.46 503.60 502.20 113.07 0.0120 18 11.50 6.3 6.8 0.30 OK 511.50 0.013 6.40 2.30 181 183 0.00 0.00 0.00 0.00 0.96 5.48 6.5 6.28 10.7 10.30 502.10 502.00 20.85 0.0050 18 7.43 4.8 0.07 OK 506.00 1 0.013 2.396 END 185 187 0.45 0.33 0.74 0.34 0.34 5.50 6.5 2.19 10.7 3.59 476.29 476.01 56.01 0.0050 15 4.57 3.7 4.2 0.25 OK 483.54 0.013 6.000 6.280 187 189 0.92 0.46 0.60 0.55 0.89 5.75 6.4 5.70 10.5 9.34 475.91 473.87 169.69 0.0120 15 7.07 6.0 0.47 OK 483.54 0.013 6.380 10.876 189 191 0.37 0.12 0.49 0.18 1.07 6.22 6.3 6.72 10.3 10.99 473.77 472.42 52.10 0.0260 15 10.41 7.3 0.12 OK 486.00 0.013 10.976 12.901 191 193 0.18 0.01 0.32 0.06 1.12 6.34 6.3 7.03 10.2 11.50 472.32 471.19 43.44 0.0260 15 10.41 7.3 0.10 OK 486.57 0.013 13.001 14.130 193 195 0.20 0.01 0.32 0.06 1.19 6.44 6.2 7.39 10.2 12.08 470.94 469.66 127.54 0.0100 18 10.50 8.4 0.25 OK 486.57 0.013 14.130 11.066 195 197 0.19 0.11 0.64 0.12 1.31 6.70 6.2 8.07 10.1 13.19 469.56 468.66 90.68 0.0100 18 10.50 8.5 0.18 OK 482.23 0.013 11.166 10.753 197 199 0.25 0.07 0.46 0.12 1.67 13.51 4.8 7.94 7.8 13.03 463.40 455.98 74.22 0.1000 18 33.21 8.5 9.5 0.15 OK 480.91 0.013 16.010 4.022 199 201 0.00 0.00 0.00 0.00 1.67 13.66 4.7 7.90 7.8 12.97 445.15 444.25 45.17 0.0200 18 14.85 8.7 9.5 0.09 OK 461.50 0.013 14.847 END 203 197 0.46 0.17 0.52 0.24 0.24 13.30 4.8 1.15 7.9 1.89 473.91 473.71 40.07 0.0050 15 4.57 3.2 3.6 0.21 OK 480.91 0.013 5.750 5.950 a "E" numbered structures refer to storm structures in the North Pointe Middle Entrance & Rt 29 Improvements Road Plans b Columns 6 and 7 (accumulated "CA" and Tc) included values from North Pointe Middle Entrance & Rt 29 Improvements Road Plans storm sewer design calcualtions Page 2 of 2 North Pointe Subdivision Section I DATE. 12/18/2018 REVISED: 5/17/2019 REVISED: HYDRAULIC GRADE LINE COMPUTATION 10 yr Event JUNCTION LOSS INLET/STATION Upstream Outflow 1 OUTLET WATER Do Qo Lo Sfo % Hf Vo Ho Qi Vi Qivi Vi^2/2g Hi Angle K delta H Ht 1.3 Ht 0.5 Ht Final H Inlet Water Rim Elev. SURFACE ELEV. 90-15 Surface Elev. 2 3 4.00 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WSE check 21 Hydraulic Grade Line above Crown of Pie Overide Open Channel Flow Velocity with Velocity flowing full 10-YR WSE IN EX. SWMBMP 1 438.11 E81 438.11 30 24.72 246.93 0.36 0.90 5.0 0.10 25.39 5.2 131.42 0.42 0.15 0 0.19 0.08 0.32 1.22 439.33 442.50 3.17 yes X E15 439.33 30 25.39 254.63 0.38 0.98 5.2 0.10 25.45 5.2 132.03 0.42 0.15 0 0.19 0.08 0.33 1.31 440.64 444.00 3.36 yes X E13 440.64 30 25.45 22.17 0.39 0.09 5.2 0.10 17.24 3.5 60.59 0.19 0.07 90 0.70 0.13 0.31 0.39 441.03 447.25 6.22 yes X E12D 441.03 30 17.24 32.63 0.18 0.06 3.5 0.05 4.59 9.8 44.82 1.48 0.52 90 0.70 1.04 1.60 1.66 442.69 455.50 12.81 no X 29 444.43 15 4.59 63.25 3.45 2.18 9.8 0.37 0.72 2.8 1.99 0.12 0.04 90 0.70 0.08 0.50 2.68 447.11 454.05 6.94 no 27 450.65 15 0.72 90.67 0.28 0.25 2.8 0.03 0.73 3.8 2.80 0.23 0.08 10 0.19 0.04 0.15 0.40 451.05 455.15 4.10 no 25 451.20 15 0.73 121.90 0.52 0.64 3.8 0.06 0.37 2.3 0.85 0.08 0.03 90 0.70 0.06 0.14 0.78 451.98 459.18 7.20 no 23 452.76 15 0.37 57.52 0.19 0.11 2.3 0.02 0.00 0.00 0.00 0.19 0.00 0.02 0.13 452.89 459.05 6.16 no 31 447.71 15 1.82 68.00 0.46 0.31 3.6 0.05 0.00 0.05 0.36 448.07 454.05 5.98 no 10-YR WSE IN SWMBMP 4 438.69 37 442.04 15 2.89 16.31 0.20 0.03 2.4 0.02 1.64 7.3 11.99 0.83 0.29 70 0.61 0.51 0.82 0.85 442.89 446.00 3.11 yes X 35 442.89 15 1.64 158.01 1.94 3.06 7.3 0.21 1.23 4.1 5.09 0.26 0.09 50 0.47 0.12 0.42 3.48 446.37 467.21 20.84 no 33 460.86 15 1.23 52.33 0.61 0.32 4.1 0.07 0.00 0.00 0.00 0.19 0.00 0.07 0.39 461.25 466.79 5.54 no 47 442.89 15 1.69 89.33 0.07 0.06 1.4 0.01 1.70 8.6 14.57 1.14 0.40 40 0.38 0.43 0.84 0.90 443.79 451.00 7.21 no X 45 448.00 15 1.70 48.70 2.65 1.29 8.6 0.29 1.70 8.6 14.60 1.14 0.40 0 0.19 0.22 0.90 2.19 450.19 463.00 12.81 no 43 458.58 15 1.70 40.30 2.65 1.07 8.6 0.29 1.22 1.0 1.21 0.02 0.01 0 0.19 0.00 0.29 1.36 459.95 469.53 9.58 no 41 463.00 15 1.22 55.98 0.04 0.02 1.0 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.02 463.02 469.53 6.51 no X 59 481.20 18 12.53 45.31 1.42 0.65 7.1 0.20 8.07 8.5 68.27 1.11 0.39 90 0.70 0.78 1.36 2.01 483.21 496.10 12.89 no X 57 493.02 15 8.07 110.46 2.58 2.86 8.5 0.28 4.27 3.5 14.84 0.19 0.07 20 0.22 0.04 0.38 3.24 496.26 503.64 7.38 no 55 500.35 15 4.27 326.51 0.44 1.43 3.5 0.05 4.06 3.3 13.45 0.17 0.06 0 0.19 0.03 0.14 1.57 501.92 513.88 11.96 no X 53 507.31 15 4.06 40.00 0.40 0.16 3.3 0.04 3.55 9.9 35.18 1.52 0.53 90 0.70 1.07 1.64 1.80 509.11 513.93 4.82 1 no X 51 509.11 15 3.55 99.42 3.55 3.53 9.9 0.38 1.22 1.0 1.20 0.02 0.01 1 70 0.61 0.01 0.40 3.92 513.03 519.94 6.91 no 49 514.08 15 1.22 42.55 1 0.04 0.02 1.0 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.02 514.10 520.68 6.58 no X 69 488.02 15 3.52 26.68 0.30 0.08 2.9 0.03 2.81 4.0 11.11 0.24 0.09 90 0.70 0.17 0.29 0.37 488.38 495.51 7.13 no X 67 488.38 15 2.81 40.00 0.57 0.23 4.0 0.06 0.00 0.00 0.00 0.19 0.00 0.06 0.29 488.67 495.51 6.84 no 65 488.09 15 2.33 71.96 2.38 1.71 8.1 0.26 0.00 0.00 0.00 0.19 0.00 0.26 1.96 490.05 498.45 8.39 no 10-YR WSE IN SWMBMP 3 439.20 99 439.20 30 31.55 45.61 0.59 0.27 6.4 0.16 31.64 6.4 204.01 0.65 0.23 0 0.19 0.12 0.51 0.78 439.98 450.25 10.27 yes X 97 445.75 30 31.64 57.03 0.60 0.34 6.4 0.16 31.71 6.5 204.95 0.65 0.23 40 0.38 0.25 0.63 0.97 446.72 460.25 13.53 no X 95 450.26 30 31.71 43.19 0.60 0.26 6.5 0.16 23.55 4.8 113.08 0.36 0.13 90 0.70 0.25 0.54 0.80 451.06 467.92 16.86 no X 93 462.00 30 23.55 252.00 0.33 0.83 4.8 0.09 22.36 4.6 101.91 0.32 0.11 0 0.19 0.06 0.26 1.10 463.10 475.04 11.94 no X 91 468.00 30 22.36 133.39 0.30 0.40 4.6 0.08 22.22 4.5 100.60 0.32 0.11 0 0.19 0.06 0.25 0.65 468.65 478.38 9.73 no X 89 469.43 30 22.22 166.38 0.29 0.49 4.5 0.08 21.97 4.5 98.41 0.31 0.11 90 0.70 0.22 0.41 1 0.90 470.33 478.26 7.93 1 no X 87 470.86 30 21.97 56.64 0.29 0.16 4.5 0.08 21.53 4.4 94.46 0.30 0.10 60 0.55 0.16 0.35 0.51 471.37 478.17 6.80 no X 85 471.53 30 21.53 80.11 0.28 0.22 4.4 0.07 19.90 6.3 126.15 0.62 0.22 40 0.38 0.24 0.53 0.75 472.28 476.90 4.62 no X 83 472.28 24 19.90 80.17 0.78 0.62 6.3 0.16 16.56 5.3 87.38 0.43 0.15 0 0.19 0.08 0.39 1.01 473.29 478.50 5.21 yes X 81 474.60 24 16.56 185.03 0.54 0.99 5.3 0.11 14.22 4.5 64.42 0.32 0.11 0 0.19 0.06 0.28 1.27 475.87 488.38 12.51 no X 79 483.60 24 14.22 229.10 0.40 0.91 4.5 0.08 11.90 6.7 80.24 0.71 0.25 0 0.19 0.13 0.46 1.37 484.97 495.30 10.33 no X 77 489.20 18 11.90 113.53 1.29 1.46 6.7 0.18 8.96 8.9 79.96 1.24 0.43 0 0.19 0.23 0.84 2.30 491.50 498.98 7.48 no X 75 495.52 18 8.96 272.81 2.25 6.15 8.9 0.31 5.08 4.1 21.03 0.27 0.09 30 0.28 0.07 0.48 6.62 502.15 519.40 17.25 no 73 511.94 15 5.08 56.56 0.62 0.35 4.1 0.07 4.27 3.5 14.87 0.19 0.07 60 0.55 0.10 0.24 0.59 512.53 520.21 7.68 no X 71 512.61 15 4.27 42.57 0.44 0.19 3.5 0.05 0.00 0.00 0.00 0.19 0.00 0.05 0.23 512.84 520.21 7.37 no X 127 459.79 30 6.40 112.41 0.55 0.62 6.2 0.15 4.84 8.4 40.83 1.10 0.39 0 0.19 0.21 0.74 1.36 461.15 468.46 7.31 no 125 461.15 30 4.84 249.77 1.02 2.54 8.4 0.28 3.40 8.4 28.55 1.09 0.38 0 0.19 0.21 0.87 3.41 464.56 477.19 12.63 no 123 468.61 30 3.40 281.55 1.01 2.84 8.4 0.27 3.06 4.3 13.08 0.28 0.10 90 0.70 0.20 0.57 3.41 472.02 487.96 15.94 no 121 479.97 24 3.06 56.03 0.35 0.20 4.3 0.07 2.84 5.0 14.24 0.39 0.14 50 0.47 0.18 0.39 0.59 480.56 487.96 7.40 no 119 480.56 24 2.84 53.37 0.48 0.26 5.0 0.10 1.76 4.6 8.01 0.32 0.11 50 0.47 0.15 0.36 0.62 481.18 487.61 6.43 no 117 481.18 15 1.76 44.00 0.75 0.33 4.6 0.08 0.00 0.00 0.00 0.19 0.00 0.08 0.41 481.59 487.53 5.94 no Page 1 of 2 North Pointe Subdivision Section I DATE. 12/18/2018 REVISED: 5/17/2019 REVISED: HYDRAULIC GRADE LINE COMPUTATION 10 yr Event JUNCTION LOSS INLET/STATION Upstream Outflow 1 OUTLET WATER Do Qo Lo Sfo % Hf Vo Ho Qi Vi Qivi Vi^2/2g Hi Angle K delta H Ht 1.3 Ht 0.5 Ht Final H Inlet Water Rim Elev. SURFACE ELEV. 90-15 Surface Elev. 2 3 4.00 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WSE check 21 Hydraulic Grade Line above Crown of Pie Overide Open Channel Flow Velocity with Velocity flowing full 129 470.66 15 0.81 56.09 0.29 0.16 2.9 0.03 0.00 0.00 0.00 0.19 0.00 0.03 0.20 470.86 477.19 6.33 no 131 461.47 15 2.31 66.82 0.47 0.32 3.6 0.05 0.00 0.00 0.00 0.19 0.00 0.05 0.37 461.84 467.80 5.97 no 115 468.00 15 0.94 56.12 0.40 0.23 3.3 0.04 0.00 0.00 0.00 0.19 0.00 0.04 0.27 468.27 475.11 6.84 no 113 473.29 15 1.68 43.22 0.07 0.03 1.4 0.01 0.00 0.00 0.00 0.19 0.00 0.01 0.04 473.33 478.59 5.26 yes X 111 489.00 15 0.17 40.28 0.12 0.05 1.8 0.01 0.00 0.00 0.00 0.19 0.00 0.01 0.06 489.06 495.40 6.34 no 109 493.98 15 2.41 48.36 0.14 0.07 2.0 0.01 0.00 0.00 0.00 0.19 0.00 0.01 0.08 494.06 500.47 6.41 no X 107 513.41 15 3.63 40.00 0.32 0.13 3.0 0.03 3.38 2.8 9.30 0.12 0.04 50 0.47 0.06 0.13 0.26 513.67 519.40 5.73 no X 105 513.71 15 3.38 53.14 0.27 0.15 2.8 0.03 2.50 8.3 20.76 1.07 0.37 0.19 0.20 0.61 0.75 514.47 522.47 8.00 no X 103 515.94 15 2.50 52.49 2.48 1.30 8.3 0.27 0.00 0.00 0.00 0.19 0.00 0.27 1.57 517.51 524.04 6.53 no 155 451.62 24 23.63 23.56 1.09 0.26 7.5 0.22 23.83 8.7 207.10 1.17 0.41 0 0.19 0.22 0.85 1.11 452.73 455.50 2.77 yes X 153 452.73 24 1 23.83 139.39 1 1.46 2.03 8.7 1 0.29 20.65 8.2 169.31 1.04 0.37 0.19 0.20 0.86 1 2.89 455.61 476.00 20.39 no 151 472.45 24 20.65 144.96 1.30 1.88 8.2 0.26 18.13 8.1 146.67 1.02 0.36 0.19 1 0.19 0.81 2.69 475.14 481.41 6.27 no 149 478.23 24 18.13 173.75 1.26 2.19 8.1 0.25 17.49 5.6 97.40 0.48 0.17 70 0.61 0.29 0.72 2.91 481.14 492.05 10.91 no 147 487.37 24 17.49 78.87 0.60 0.47 5.6 0.12 11.35 3.6 41.00 0.20 0.07 70 0.61 0.12 0.32 0.79 488.15 495.87 7.72 no X 145 488.99 24 11.35 132.67 0.25 0.33 3.6 0.05 11.46 3.6 41.83 0.21 0.07 20 0.22 0.05 0.17 0.50 489.49 498.45 8.96 no X 143 490.81 24 11.46 103.21 0.26 0.27 3.6 0.05 6.66 3.8 25.10 0.22 0.08 20 0.22 0.05 0.18 0.44 491.25 497.98 6.73 no X 141 494.50 18 6.66 96.51 0.40 0.39 3.8 0.06 6.38 3.6 23.08 0.20 0.07 20 0.22 0.04 0.17 0.56 495.06 499.42 4.36 no X 139 496.05 18 6.38 88.85 0.37 0.33 3.6 0.05 5.12 9.1 46.34 1.27 0.45 0 0.19 0.24 0.74 1.07 497.12 503.55 6.43 no X 137 500.26 15 5.12 152.97 2.96 4.54 9.1 0.32 4.95 4.0 19.96 0.25 0.09 50 0.47 0.12 0.53 5.06 505.32 516.69 11.37 no 135 511.53 15 4.95 49.39 0.59 0.29 4.0 0.06 3.66 4.2 15.29 0.27 0.09 90 0.70 0.19 0.35 0.64 512.17 519.45 7.28 no X 133 512.62 15 3.66 46.39 0.63 0.29 4.2 0.07 0.00 0.00 0.00 0.19 0.00 0.07 0.36 512.98 518.85 5.87 no 173 471.14 15 2.43 62.97 0.14 0.09 2.0 0.02 0.00 0.00 0.00 0.19 0.00 0.02 0.10 471.25 477.16 5.91 no X 171 475.21 15 2.71 40.02 0.64 0.26 4.2 0.07 0.00 0.00 0.00 0.19 0.00 0.07 0.32 475.53 481.41 5.88 no 169 488.31 15 6.62 40.18 1.05 0.42 5.4 0.11 4.31 3.5 15.14 0.19 0.07 40 0.38 0.07 0.25 0.68 488.98 496.00 7.02 no X 167 490.61 15 4.31 49.38 0.45 0.22 3.5 0.05 3.38 2.8 9.32 0.12 0.04 50 0.47 0.06 0.14 0.36 490.97 497.70 6.73 no X 165 491.20 15 3.38 40.02 0.27 0.11 2.8 0.03 0.87 4.8 4.16 0.35 0.12 40 0.38 0.13 0.29 0.40 491.60 497.70 6.10 no X 163 491.70 15 0.87 47.34 0.82 0.39 4.8 0.09 0.00 0.00 0.00 0.19 0.00 0.09 0.48 492.18 496.90 4.72 no 161 491.58 15 4.59 40.00 1.21 0.48 5.8 0.13 0.00 0.00 0.00 0.19 0.00 0.13 0.61 492.19 497.98 5.79 no 159 497.79 15 1.11 40.55 0.35 0.14 3.1 0.04 0.00 0.00 0.00 0.19 0.00 0.04 0.18 497.97 503.99 6.02 no 10-YR WSE W SWM/BMP 2 501.47 181 503.20 18 6.28 20.85 0.36 0.07 3.6 0.05 6.37 3.6 22.96 0.20 0.07 30 0.28 0.06 0.18 0.25 503.45 506.00 2.55 no X 179 503.45 18 6.37 113.07 0.37 0.42 3.6 0.05 6.38 3.6 23.04 0.20 0.07 0 0.19 0.04 0.16 0.58 1 504.03 511.50 7.47 no X 177 504.90 18 6.38 22.31 0.37 0.08 3.6 0.05 1.78 4.6 8.08 0.32 0.11 0 0.19 0.06 0.22 0.31 505.20 511.87 6.67 no X 175 505.20 15 1.78 39.76 0.75 0.30 4.6 0.08 0.00 0.00 0.00 0.19 0.00 0.08 0.38 505.58 511.87 6.29 no 10-YR WSE IN SWM/BMP 1 447.85 199 447.85 18 7.90 45.17 0.57 0.26 4.5 0.08 7.94 8.5 67.09 1.11 0.39 0 0.19 0.21 0.68 0.93 448.78 461.50 12.72 yes X 197 457.18 18 7.94 74.22 2.02 1.50 8.5 0.28 8.07 4.6 36.89 0.32 0.11 70 0.61 0.20 0.59 2.09 459.27 480.91 21.64 no 195 469.86 18 8.07 90.68 0.59 0.54 4.6 0.08 7.39 4.2 30.91 0.27 0.10 30 0.28 0.08 0.25 0.79 470.65 482.23 11.58 no X 193 470.86 18 7.39 127.54 0.50 0.63 4.2 0.07 7.03 5.7 40.30 0.51 0.18 40 0.38 0.19 0.44 1.07 471.94 486.57 14.63 no X 191 472.19 15 7.03 43.44 1.19 0.52 5.7 0.13 6.72 5.5 36.77 0.47 0.16 60 0.55 0.26 0.55 1.06 473.25 486.57 13.32 no X 189 473.42 15 6.72 52.10 1.08 0.56 5.5 0.12 5.70 4.6 26.51 0.34 0.12 30 0.28 0.09 0.33 0.89 474.31 486.00 11.69 no X 187 474.87 15 5.70 169.69 0.78 1.32 4.6 0.08 2.19 3.7 8.16 0.22 0.08 90 0.70 0.15 0.31 1.64 476.51 483.54 7.03 no X 185 477.01 15 2.19 56.01 0.50 0.28 3.7 0.05 0.00 0.00 i 0.00 0.19 0.00 0.05 0.34 477.35 483.54 6.19 no 203 474.71 15 1.15 40.07 0.36 0.14 3.2 0.04 0.00 0.00 1 0.00 1 0.19 0.00 0.04 0.18 474.89 480.91 6.02 no Page 2 of 2 North Pointe Subdivision Section I DATE. 12/18/2018 REVISED: 5/17/2019 REVISED: HYDRAULIC GRADE LINE COMPUTATION 100 yr Event JUNCTION LOSS INLET/STATION Upstream Outflow 1 OUTLET WATER Do Qo Lo Sfo % Hf Vo Ho Qi Vi QiVi Vi^2/2g Hi Angle K delta H Ht 1.3 Ht 0.5 Ht Final H Inlet Water Rim Elev. SURFACE ELEV. 90-15 Surface Elev. 2 3 4.00 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WSE check 21 Hydraulic Grade Line above Crown of Pie Overide Open Channel Flow Velocity with Velocity flowing full 100-YR WSE IN EX. SWM/BMP 1 438.97 E81 438.97 30 40.34 246.93 0.97 2.39 8.2 0.26 41.48 8.5 350.62 1.11 0.39 0 0.19 0.21 0.86 3.25 442.22 442.50 0.28 yes X E15 442.22 30 41.48 254.63 1.02 2.61 8.5 0.28 41.57 8.5 352.29 1.11 0.39 0 0.19 0.21 0.88 3.49 445.71 444.00 -1.71 yes X E13 445.71 30 41.57 22.17 1.03 0.23 8.5 0.28 28.18 5.7 161.80 0.51 0.18 90 0.70 0.36 0.82 1.04 446.75 447.25 0.50 yes X E12D 446.75 30 28.18 32.63 0.47 0.15 5.7 0.13 7.52 6.1 46.05 0.58 0.20 90 0.70 0.41 0.74 0.89 447.65 455.50 7.85 yes X 29 447.65 15 7.52 63.25 1.36 0.86 6.1 0.15 1.17 3.2 3.69 0.15 0.05 90 0.70 0.11 0.31 1.17 448.81 454.05 5.24 yes X 27 450.65 15 1.17 90.67 0.36 0.32 3.2 0.04 1.21 4.4 5.24 0.29 0.10 10 0.19 0.06 0.20 0.52 451.17 455.15 3.98 no 25 451.20 15 1.21 121.90 0.68 0.83 4.4 0.07 0.61 2.6 1.60 0.11 0.04 90 0.70 0.07 0.19 1.02 452.22 459.18 6.96 no 23 452.76 15 0.61 57.52 0.25 0.14 2.6 0.03 0.00 0.00 0.00 0.19 0.00 0.03 0.17 452.93 459.05 6.12 no 31 448.81 15 2.98 68.00 0.21 0.14 2.4 0.02 0.00 0.02 0.17 448.98 454.05 5.07 yes X 100-YR WSE IN SWM/BMP 4 438.84 37 442.04 15 4.73 16.31 0.54 0.09 3.9 0.06 2.69 8.4 22.59 1.10 0.38 70 0.61 0.67 1.11 1.20 443.23 446.00 2.77 yes X 35 443.23 15 2.69 158.01 1 2.55 4.03 8.4 0.27 2.03 4.7 9.56 0.34 0.12 1 50 0.47 0.16 0.56 4.58 447.82 467.21 19.39 no 33 460.86 15 2.03 52.33 0.80 0.42 4.7 0.09 0.00 0.00 0.00 0.19 0.00 0.09 0.51 461.37 466.79 5.42 no 47 443.23 15 2.77 89.33 0.18 0.17 2.3 0.02 2.78 9.8 27.30 1.49 0.52 40 0.38 0.57 1.11 1.28 444.51 451.00 6.49 yes X 45 448.00 15 2.78 48.70 3.48 1.69 9.8 0.37 2.79 9.8 27.40 1.50 0.52 0 0.19 0.28 1.18 2.88 450.88 463.00 12.12 no 43 458.58 15 2.79 40.30 3.48 1.40 9.8 0.37 1.99 1.6 3.24 0.04 0.01 0 0.19 0.01 0.40 1 1.80 460.38 469.53 9.14 no 41 463.00 15 1.99 55.98 0.10 0.05 1.6 0.01 0.00 0.00 0.00 0.19 0.00 0.01 0.06 463.06 469.53 6.47 no X 59 481.20 18 20.63 45.31 3.48 1.58 11.1 0.48 13.28 0.0 0.00 0.00 0.00 90 0.70 0.00 0.48 2.05 483.25 496.10 12.85 no 57 493.02 15 13.28 110.46 0.00 0.00 0.0 0.00 7.01 5.7 40.10 0.51 0.18 20 0.22 0.11 0.29 0.29 493.31 503.64 10.33 no 55 500.35 15 7.01 326.51 1.18 3.86 5.7 0.13 6.68 5.4 36.35 0.46 0.16 0 0.19 0.09 0.38 4.23 504.58 513.88 9.30 no X 53 507.31 15 6.68 40.00 1.07 0.43 5.4 0.12 5.83 4.8 27.74 0.35 0.12 90 0.70 0.25 0.48 0.91 508.22 513.93 5.71 no X 51 509.01 15 5.83 99.42 0.82 0.81 4.8 0.09 2.00 1.6 3.25 0.04 0.01 70 0.61 0.03 0.13 0.94 509.95 519.94 9.99 no X 49 514.08 15 2.00 42.55 0.10 0.04 1.6 0.01 0.00 0.00 0.00 0.19 0.00 0.01 0.05 514.13 520.68 6.55 no X 69 488.02 15 5.74 26.68 0.79 0.21 4.7 0.09 4.58 3.7 17.11 0.22 0.08 90 0.70 0.15 0.31 0.52 488.54 495.51 6.97 yes X 67 488.54 15 4.58 40.00 0.50 0.20 3.7 0.05 0.00 0.00 0.00 0.19 0.00 0.05 0.26 488.80 495.51 6.71 no X 65 488.09 15 3.80 71.96 0.35 0.25 3.1 0.04 0.00 0.00 0.00 0.19 0.00 0.04 0.29 488.38 498.45 10.07 no X 100-YR WSE IN SWM/BMP 3 440.56 99 440.56 30 52.19 45.61 1.62 0.74 10.6 0.44 52.33 10.7 558.06 1.77 0.62 0 0.19 0.34 1.39 2.13 1 442.69 450.25 7.56 yes X 97 445.75 30 52.33 57.03 1.63 0.93 10.7 0.44 52.43 10.7 560.38 1.77 0.62 40 0.38 0.67 1.74 2.67 448.42 460.25 11.83 yes X 95 450.26 30 52.43 43.19 1.64 0.71 10.7 0.44 38.90 7.9 308.46 0.98 0.34 90 0.70 0.68 1.47 2.18 452.44 467.92 15.48 yes X 93 462.00 30 38.90 252.00 0.90 2.27 7.9 0.24 36.91 7.5 277.63 0.88 0.31 0 0.19 0.17 0.72 2.99 464.99 475.04 10.05 no X 91 468.00 30 36.91 133.39 0.81 1.08 7.5 0.22 36.64 7.5 273.59 0.87 0.30 0 0.19 0.16 0.69 1.77 469.77 478.38 8.61 no X 89 469.77 30 36.64 166.38 0.80 1.33 7.5 1 0.22 36.23 1 7.4 267.51 1 0.85 0.30 90 0.70 0.59 1.11 1 2.43 472.20 478.26 6.06 yes X 87 472.20 30 36.23 56.64 0.78 0.44 7.4 0.21 35.48 7.2 256.55 0.81 0.28 60 0.55 0.45 0.94 1.38 473.59 478.17 4.58 yes X 85 473.59 30 35.48 80.11 0.75 0.60 7.2 0.20 32.79 10.4 342.36 1.69 0.59 40 0.38 0.64 1.44 2.04 475.63 476.90 1.27 yes X 83 475.63 24 32.79 80.17 2.10 1.69 10.4 0.42 27.27 8.7 236.81 1.17 0.41 0 0.19 0.22 1.06 2.74 478.37 478.50 0.13 yes X 81 478.37 24 27.27 185.03 1.46 2.69 8.7 0.29 23.39 0.0 0.00 0.00 0.00 0 0.19 0.00 0.29 2.99 481.35 488.38 7.03 yes X 79 483.60 24 23.39 229.10 0.00 0.00 0.0 0.00 19.57 0.0 0.00 0.00 0.00 0 0.19 0.00 0.00 0.00 483.60 495.30 11.70 no 77 489.20 18 19.57 113.53 0.00 0.00 0.0 0.00 14.72 9.6 140.70 1.42 0.50 0 0.19 0.27 0.77 0.77 489.97 498.98 9.01 no 75 495.52 18 14.72 272.81 2.59 7.06 9.6 0.35 8.34 0.0 0.00 0.00 0.00 30 0.28 0.00 0.35 7.42 502.94 519.40 16.46 no 73 511.94 15 8.34 56.56 0.00 0.00 0.0 0.00 7.01 0.0 0.00 0.00 0.00 60 0.55 0.00 0.00 0.00 511.94 520.21 8.27 no 71 512.61 15 7.01 42.57 0.00 0.00 0.0 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 512.61 520.21 7.60 no 127 459.79 30 10.55 112.41 0.07 0.07 2.2 0.02 7.98 9.7 77.23 1.46 0.51 0 0.19 0.28 0.80 0.88 460.67 468.46 7.79 no X 125 461.01 30 7.98 249.77 1.34 3.35 9.7 0.36 5.60 9.7 54.07 1.45 0.51 0 0.19 0.28 1.15 4.50 465.51 477.19 11.68 no 123 468.61 30 5.60 281.55 1.34 3.76 9.7 0.36 5.04 1.6 8.07 0.04 0.01 90 0.70 0.03 0.40 4.17 472.78 487.96 15.18 no 121 479.97 24 5.04 56.03 0.05 0.03 1.6 0.01 4.67 5.7 26.77 0.51 0.18 50 0.47 0.24 0.43 0.46 480.43 487.96 7.53 no X 119 480.43 24 4.67 53.37 0.63 0.34 5.7 0.13 2.89 5.2 14.95 0.42 0.15 50 0.47 0.20 0.47 0.81 481.23 487.61 6.38 no 117 481.23 15 2.89 44.00 0.97 0.42 5.2 0.10 0.00 0.00 0.00 0.19 0.00 0.10 0.53 481.76 487.53 5.77 no Page 1 of 2 North Pointe Subdivision Section I DATE. 12/18/2018 REVISED: 5/17/2019 REVISED: HYDRAULIC GRADE LINE COMPUTATION 100 yr Event JUNCTION LOSS INLET/STATION Upstream Outflow 1 OUTLET WATER Do Qo Lo Sfo % Hf Vo Ho Qi Vi QiVi Vi^2/2g Hi Angle K delta H Ht 1.3 Ht 0.5 Ht Final H Inlet Water Rim Elev. SURFACE ELEV. 90-15 Surface Elev. 2 3 4.00 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WSE check 21 Hydraulic Grade Line above Crown of Pie Overide Open Channel Flow Velocity with Velocity flowing full 129 470.66 15 1.33 56.09 0.38 0.22 3.3 0.04 0.00 0.00 0.00 0.19 0.00 0.04 0.26 470.92 477.19 6.27 no 131 461.47 15 3.80 66.82 0.59 0.40 4.1 0.06 0.00 0.00 0.00 0.19 0.00 0.06 0.46 461.93 467.80 5.87 no 115 468.00 15 1.57 56.12 0.51 0.29 3.8 0.06 0.00 0.00 0.00 0.19 0.00 0.06 0.34 468.34 475.11 6.77 no 113 478.37 15 2.76 43.22 0.18 0.08 2.2 0.02 0.00 0.00 0.00 0.19 0.00 0.02 0.10 478.47 478.59 0.12 yes X 111 489.00 15 0.28 40.28 0.16 0.06 2.1 0.02 0.00 0.00 0.00 0.19 0.00 0.02 0.08 489.08 495.40 6.32 no 109 493.98 15 3.93 48.36 0.37 0.18 3.2 0.04 0.00 0.00 0.00 0.19 0.00 0.04 0.22 494.20 500.47 6.27 no X 107 513.41 15 5.96 40.00 0.85 0.34 4.9 0.09 5.54 4.5 25.04 0.32 0.11 50 0.47 0.15 0.35 0.69 514.11 519.40 5.29 yes X 105 514.11 15 5.54 53.14 0.74 0.39 4.5 0.08 4.11 9.5 38.82 1.39 0.49 0.19 0.26 0.83 1.22 515.33 522.47 7.14 no X 103 515.94 15 4.11 52.49 3.23 1.69 9.5 0.35 0.00 0.00 0.00 0.19 0.00 0.35 2.04 517.98 524.04 6.06 no 155 451.62 24 38.76 23.56 2.94 0.69 12.3 0.59 39.07 9.5 372.33 1.41 0.49 0 0.19 0.27 1.35 2.05 453.66 455.50 1.84 yes X 153 453.66 24 1 39.07 139.39 1 1.75 2.44 9.5 1 0.35 33.83 0.0 0.00 0.00 0.00 0.19 0.00 0.35 2.80 456.46 476.00 19.54 no 151 472.45 24 33.83 144.96 0.00 0.00 0.0 0.00 29.69 9.2 272.23 1.31 0.46 0.19 0.25 0.71 0.71 473.16 481.41 8.25 no 149 478.23 24 29.69 173.75 1.62 2.82 9.2 0.33 28.63 9.1 261.01 1.29 0.45 70 0.61 0.79 1.57 4.38 482.62 492.05 9.43 no 147 487.37 24 28.63 78.87 1.60 1.26 9.1 0.32 18.57 5.9 109.78 0.54 0.19 70 0.61 0.33 0.84 2.11 489.48 495.87 6.39 yes X 145 489.48 24 18.57 132.67 0.67 0.89 5.9 0.14 18.74 0.0 0.00 0.00 0.00 20 0.22 0.00 0.14 1.03 490.51 498.45 7.94 no X 143 490.81 24 18.74 103.21 0.00 0.00 0.0 0.00 10.89 6.2 67.11 0.59 0.21 20 0.22 0.13 0.34 0.34 491.15 497.98 6.83 no 141 494.50 18 10.89 96.51 1.08 1.04 6.2 0.15 10.44 5.9 61.67 0.54 0.19 20 0.22 0.12 0.46 1.50 496.00 499.42 3.42 no X 139 496.05 18 10.44 88.85 0.99 0.88 5.9 0.14 8.36 10.1 84.17 1.57 0.55 0 0.19 0.30 0.99 1.86 497.91 503.55 5.64 no X 137 500.26 15 8.36 152.97 3.66 5.60 10.1 0.39 8.08 6.6 53.28 0.67 0.24 50 0.47 0.32 0.95 6.55 506.81 516.69 9.88 no 135 511.53 15 8.08 49.39 1.57 0.77 6.6 0.17 5.98 0.0 0.00 0.00 0.00 90 0.70 0.00 0.17 0.94 512.47 519.45 6.98 no X 133 512.62 15 5.98 46.39 0.00 0.00 0.0 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 512.62 518.85 6.23 no 173 471.14 15 3.97 62.97 0.38 0.24 3.2 0.04 0.00 0.00 0.00 0.19 0.00 0.04 0.28 471.42 477.16 5.74 no X 171 475.21 15 4.46 40.02 0.77 0.31 4.6 0.08 0.00 0.00 0.00 0.19 0.00 0.08 0.39 475.60 481.41 5.81 no 169 489.48 15 10.79 40.18 2.80 1.12 8.8 0.30 7.04 0.0 0.00 0.00 0.00 40 0.38 0.00 0.30 1.42 490.90 496.00 5.10 yes X 167 490.90 15 7.04 49.38 0.00 0.00 0.0 0.00 5.52 4.5 24.87 0.31 0.11 50 0.47 0.15 0.26 0.26 491.16 497.70 6.54 no 165 491.20 15 5.52 40.02 0.73 0.29 4.5 0.08 1.43 5.5 7.80 0.46 0.16 40 0.38 0.18 0.42 0.71 491.91 497.70 5.79 yes X 163 491.91 15 1.43 47.34 1.08 0.51 5.5 0.12 0.00 0.00 0.00 0.19 0.00 0.12 0.63 492.54 496.90 4.36 no 161 491.58 15 7.48 40.00 0.00 0.00 0.0 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 491.58 497.98 6.40 no 159 497.91 15 1.82 40.55 0.45 0.18 3.5 0.05 0.00 0.00 0.00 0.19 0.00 0.05 0.23 498.15 503.99 5.84 no 100-YR WSE IN SWMBMP 2 501.72 181 503.20 18 10.30 20.85 0.96 0.20 5.8 0.13 10.46 5.9 61.90 0.54 0.19 30 0.28 0.15 0.47 0.68 503.88 506.00 2.12 yes X 179 503.88 18 10.46 113.07 0.99 1.12 5.9 0.14 10.48 5.9 62.15 0.55 0.19 0 0.19 0.10 0.43 1.55 505.43 511.50 6.07 yes X 177 505.43 18 10.48 22.31 1.00 0.22 5.9 0.14 2.92 2.4 6.95 0.09 0.03 0 0.19 0.02 0.18 0.41 505.84 511.87 6.03 yes X 175 505.84 15 2.92 39.76 0.20 0.08 2.4 0.02 0.00 0.00 0.00 0.19 0.00 0.02 0.10 505.94 511.87 5.93 yes X 100-YR WSE IN SWMBMP 1 448.99 199 448.99 18 12.97 45.17 1.53 0.69 7.3 0.21 13.03 9.5 124.15 1.41 0.49 0 0.19 0.27 0.97 1.66 450.65 461.50 10.85 yes X 197 457.18 18 13.03 74.22 2.57 1.91 9.5 0.35 13.19 0.0 0.00 0.00 0.00 70 0.61 0.00 0.35 2.26 459.44 480.91 21.47 no 195 469.86 18 13.19 90.68 0.00 0.00 0.0 0.00 12.08 0.0 0.00 0.00 0.00 30 0.28 0.00 0.00 0.00 469.86 482.23 12.37 no 193 470.86 18 12.08 127.54 0.00 0.00 0.0 0.00 11.50 0.0 0.00 0.00 0.00 40 0.38 0.00 0.00 0.00 470.86 486.57 15.71 no 191 472.19 15 11.50 43.44 0.00 0.00 0.0 0.00 10.99 0.0 0.00 0.00 0.00 60 0.55 0.00 0.00 0.00 472.19 486.57 14.38 no 189 473.42 15 10.99 52.10 0.00 0.00 0.0 0.00 9.34 0.0 0.00 0.00 0.00 30 0.28 0.00 0.00 0.00 473.42 486.00 12.58 no 187 474.87 15 9.34 169.69 0.00 0.00 0.0 0.00 3.59 4.2 14.90 0.27 0.09 90 0.70 0.19 0.28 0.28 475.15 483.54 8.39 no 185 477.01 15 3.59 56.01 0.62 0.35 4.2 0.07 0.00 0.00 0.00 0.19 0.00 0.07 0.42 477.43 483.54 6.11 no 203 474.71 15 1.89 40.07 0.46 0.19 3.6 0.05 0.00 0.00 0.00 0.19 0.00 0.05 0.24 474.94 480.91 1 5.97 no Page 2 of 2 INLET CALCUALTIONS North Pointe Subdivision Section 1 DATE: 12/18/2018 REVISED: REVISED: 5/17/2019 REVISED: Structure # IType I CA I I I O 10pening ISpread 23 DI-3B 0.06 4.00 0.22 6 1.18 25 DI-3B 0.06 4.00 0.23 6 1.2 27 MH-1 0.00 4.00 0.00 - 29 D1-3CC 0.32 6.50 2.11 8 8.86 E12D MH-1 0.00 4.00 0.00 E13 MH-1 0.00 4.00 0.00 E15 MH-1 0.00 4.00 0.00 E81 MH-1 0.00 4.00 0.00 31 DI-3C 0.28 6.50 1.81 8 8 33 D1-3B 0.19 4.00 0.74 10 1.68 35 D1-3BB 0.06 4.00 0.25 6 1.14 37 MH-1 0.00 4.00 0.00 - 41 DI-3B 0.25 4.00 0.98 8 2.78 43 D1-3BB 0.10 4.00 0.40 6 1.54 45 MH-1 0.00 4.00 0.00 - 47 MH-1 0.00 4.00 0.00 - 49 DI-3B 0.18 4.00 0.73 8 1.71 51 DI-3B 0.58 4.00 2.32 12 4.46 53 DI-3B 0.11 4.00 0.46 8 1.45 55 DI-3B 0.05 4.00 0.18 6 1.03 57 DI-3B 0.19 4.00 0.77 10 1.66 59 MH-1 0.00 4.00 0.00 - 63 D1-3B 0.66 4.00 2.65 14 4.32 65 DI-7 0.40 4.00 1.60 67 DI-3C 0.47 6.50 3.08 12 9.84 69 DI-3CC 0.12 6.50 0.81 6 5.31 71 D1-3CC 0.90 6.50 5.85 16 10.89 73 DI-3BB 0.17 4.00 0.70 8 1.93 75 DI-3AA 0.07 4.00 0.26 2.5 1.45 77 D1-3BB 0.26 4.00 1.05 8 2.69 79 DI-3BB 0.49 4.00 1.98 10 4.86 81 DI-3BB 0.56 4.00 2.24 12 4.49 83 DI-3B 0.52 4.00 2.06 10 5.14 85 DI-3C 0.38 6.50 2.50 10 8.92 87 D1-3BB 0.12 4.00 0.50 6 1.84 89 D1-3BB 0.07 4.00 0.28 6 1.52 91 DI-3BB 0.08 4.00 0.33 6 1.66 93 DI-3BB 0.12 4.00 0.49 6 1.67 95 DI-3CC 0.18 6.50 1.17 6 6.78 97 MH-1 0.00 4.00 0.00 - 99 MH-1 0.00 4.00 0.00 - 103 DI-3B 0.52 4.00 2.10 14 4.31 105 DI-3B 0.19 4.00 0.74 8 1.81 107 DI-3A 0.06 4.00 0.23 2.5 1.39 109 DI-3B 0.40 4.00 1.61 10 3.6 111 D1-3B 0.03 4.00 0.10 6 1.07 113 D1-3B 0.26 4.00 1.04 8 2.8 115 D1-3B 0.19 4.00 0.75 8 1.97 INLET CALCUALTIONS North Pointe Subdivision Section 1 DATE: 12/18/2018 REVISED: REVISED: 5/17/2019 REVISED: Structure # IType I CA I I I O 10pening ISpread 117 D1-3B 0.38 6.50 2.46 10 8.83 119 DI-3BB 0.24 6.50 1.53 8 7.15 121 DI-3BB 0.05 4.00 0.20 6 1.32 123 DI-3BB 0.08 4.00 0.31 6 1.52 125 DI-3BB 0.21 4.00 0.84 8 1.98 127 DI-3BB 0.37 4.00 1.46 10 4.77 129 DI-3B 0.12 4.00 0.49 8 1.62 131 DI-3C 0.35 6.50 2.25 10 8.32 133 D1-3B 0.70 4.00 2.81 14 6.39 135 D1-3B 0.25 4.00 1.01 8 2.98 137 DI-3A 0.04 4.00 0.14 2.5 139 DI-3B 0.09 4.00 0.37 8 1.37 141 DI-3B 0.06 4.00 0.25 6 1.3 143 D1-3CC 0.13 6.50 0.86 6 5.52 145 MH-1 0.00 4.00 0.00 - 147 DI-3BB 0.07 4.00 0.30 6 2.74 149 DI-3B 0.15 4.00 0.60 8 1.57 151 DI-3B 0.15 4.00 0.62 8 1.78 153 DI-3CC 0.28 6.50 1.82 6 9.11 155 MH-1 0.00 4.00 0.00 - 159 D1-3B 0.17 4.00 0.66 8 1.64 161 DI-3C 0.83 6.50 5.38 16 163 DI-3C 0.14 6.50 0.92 6 5.78 165 DI-3B 0.41 4.00 1.65 10 4.35 167 DI-3B 0.16 4.00 0.62 8 1.83 169 DI-3B 0.48 4.00 1.90 8 8.26 171 DI-3B 0.41 4.00 1.63 12 4.08 173 DI-3B 0.42 4.00 1.69 10 5.03 175 DI-3C 0.27 6.50 1.73 10 6.98 177 DI-3C 0.70 6.50 4.53 14 10.39 179 MH-1 0.00 4.00 0.00 - 181 MH-1 0.00 4.00 0.00 - 185 DI-3C 0.34 6.50 2.19 8 9.08 187 DI-3C 0.55 6.50 3.58 14 9.54 189 DI-3CC 0.18 6.50 1.18 8 6.01 191 DI-3BB 0.06 4.00 0.22 6 1.33 193 DI-3BB 0.06 4.00 0.25 6 1.39 195 DI-3BB 0.12 4.00 0.50 6 1.81 197 DI-3CC 0.12 6.50 0.75 6 5.04 199 MH-1 0.00 4.00 0.00 - 203 DI-3C 0.24 6.50 1.56 6 6.22