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HomeMy WebLinkAboutSW6220201_Design Calculations (Drainage Schedule)_20220510• " " ' " ' ' PROJECT NAME WOOdshire Phase 8 DATE 10-28-21 PROJECT NO 1775 DESIGN PHASE PRELIM CONSTR / X / REVISION LOCATION Harnett County, North Carolina BY CJP RECORD OTHER CHECKED BY CSB (SPECIFY) n= 0.013 9= 226 h= 26 STORM DRAINAGE SCHEDULE CONTINUED AREAS (INLETS) INLET AREA (AC) INLET Cc RUNOFF COEFF. INLET ISCHARG (CFS) Q (+) PSTREAN BYPASS (CFS) Q(-) INLET BYPASS (CFS) APTURED INLET I TOTAL ISCHARG AREAS (CFS) (AC) INLET TIME (MIN) PIPE TIME (MIN) Tc TIME OF CONC. (MIN) I INTENSITY (IN/HR) Cc RUNOFF COEFF. FROM TO 0.60 1.94 0.00 0.17 1.77 0.60 1.27 0.00 0.13 1.14 0.60 1.05 0.13 0.06 0.99 0.60 1.02 0.06 0.06 0.96 0.60 0.93 0.06 0.06 0.87 0.90 0.42 0.06 0.00 0.42 0.60 1.34 0.00 0.15 1.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Cl2... C11 Cl2- 0.81 0.81 5.00 0.00 5.00 7.29 0.60 C11 CI3 C11 0.53 1.34 5.00 0.10 5.10 7.27 0.60 CI3 CI4 CI3 0.38 1.72 5.00 0.37 5.37 7.20 0.60 CI4 CI6 CI4 0.40 2.12 5.00 0.55 5.55 7.16 0.60 CI6 CI8 CI6 0.36 2.48 5.00 0.77 5.77 7.11 0.60 C18 C110 CI8 0.10 2.58 5.00 0.85 5.85 7.10 0.61 Clio SDMH 20 Clio 0.56 3.14 5.00 1.04 6.04 7.05 0.61 SDMH 20 SDMH 21 SDMH 20 0.00 3.14 5.00 1.26 6.26 7.00 0.61 SDMH 21 SDMH 22 SDMH 21 0.00 3.14 5.00 1.75 6.75 6.90 0.61 SDMH 22 SDMH 23 SDMH 22 0.00 3.14 5.00 2.31 7.31 6.78 0.61 SDMH 23 FES 24 SDMH 23 0.00 3.14 5.00 2.70 7.70 6.71 0.61 1.75 0.21 EE CI5 CI4 CI5 0.72 0.55 0.17 1.55 0.72 5.00 0.00 5.00 7.29 0.55 1.26 0.09 EE CI7 CI6 CI7 0.44 0.60 0.21 1.18 0.44 5.00 0.00 5.00 7.29 0.60 0.50 0.00 EE CI9 C18 CI9 0.12 0.85 0.09 0.50 0.12 5.00 0.00 5.00 7.29 0.85 0.60 1.01 0.00 0.08 0.93 0.60 1.22 0.00 0.12 1.11 0.60 1.00 0.12 0.06 0.95 0.80 0.40 0.21 0.00 0.40 0.60 0.12 0.00 0.00 0.12 ClEE 17 Cl 16 Cl 17 0.42 0.42 5.00 0.00 5.00 7.29 0.60 Cl 16 Cl 13 Cl 16 0.51 0.93 5.00 0.10 5.10 7.27 0.60 Cl 13 Cl 12 Cl 13 0.37 1.30 5.00 0.27 5.27 7.23 0.60 Cl 12 CI 11 Cl 12 0.06 1.36 5.00 0.34 5.34 7.21 0.61 C111 C110 C111 0.05 1.41 5.00 0.37 5.37 7.20 0.61 1.30 0.51 0.15 0.00 C115 C114 C115 0.65 0.50 0.00 1.16 0.65 5.00 0.00 5.00 7.29 0.50 C114 C113 C114 0.18 0.60 0.08 0.51 0.83 5.00 0.13 5.13 7.26 0.52 EE 0.45 2.11 0.00 0.34 1.77 0.55 0.68 0.00 0.01 0.68 0.75 0.34 0.01 0.01 0.33 0.85 0.18 0.01 0.00 0.18 0.85 0.07 0.00 0.00 0.07 0.90 0.07 0.00 0.00 0.07 0.55 0.42 0.00 0.01 0.41 0.55 1.55 0.01 0.19 1.36 0.55 0.83 0.19 0.02 0.81 0.80 0.18 0.02 0.00 0.18 0.45 0.90 0.00 0.07 0.83 0.55 0.18 0.09 0.00 0.18 0.75 1.10 0.08 0.00 1.10 C125 C126 C125 1.17 1.17 5.00 0.00 5.00 7.29 0.45 CI26 C127 C126 0.31 1.48 5.00 0.10 5.10 7.27 0.47 C127 C118 C127 0.11 1.59 5.00 0.48 5.48 7.18 0.49 C118 C119 C118 0.05 1.64 5.00 0.59 5.59 7.15 0.50 C119 C129 C119 0.02 1.66 5.00 0.66 5.66 7.14 0.51 C129 C130 C129 0.02 1.68 5.00 0.78 5.78 7.11 0.51 C130 C132 C130 0.19 1.87 5.00 1.14 6.14 7.03 0.51 C132 C134 C132 0.70 2.57 5.00 1.66 6.66 6.92 0.52 C134 C136 C134 0.29 2.86 5.00 1.87 6.87 6.87 0.53 C136 C146 C136 0.05 2.91 5.00 1.91 6.91 6.87 0.53 C146 C145 C146 0.50 3.41 5.00 2.11 7.11 6.83 0.52 C145 C147 C145 0.04 3.45 5.00 2.13 7.13 6.82 0.52 CI 47 FES 48 CI 47 0.34 3.79 5.00 2.17 7.17 6.81 0.54 1.70 0.10 EE C128 C127 C128 0.68 0.50 0.34 1.60 0.68 5.00 0.00 5.00 7.29 0.50 0.86 0.18 EE C131 C130 C131 0.37 0.55 0.04 0.67 0.37 5.00 0.00 5.00 7.29 0.55 EE 0.55 1.81 0.18 0.27 1.54 C133 C132 C133 0.74 0.74 5.00 0.00 5.00 7.29 0.55 1775 Storm System.xim 10-YEAR Date: 5/10/2022 Time: 6:11 PM Page 1 of 8 NAME " I - I-' !!ICJP Phase 8 7Harneft DATE 10-28-21 DESIGN PHASE PRELIMCT CONSTR / Xshlre REVISIONION RECORD OTHER (SPECIFY) PROJECT NO 1775 Count , North Carolina BY CHECKED BY CSB n= 0.013 9= 226 h= 26 STORM DRAINAGE SCHEDULE - CONTINUED Q ISCHARG (CFS) Q SIDE- STREAM (CFS) SLOPE DIA. (I N) CAPACITY (FULL) (CFS) V FULL (FPS) LENGTH (FT) SEGMENT TIME (MIN) UPPER INV. (FT) UPSTREA LOWER TOP INV. ELEV. (FT) (FT) FROM TO 4.6 27 0.10 293.12 296.82 289.86 296.82 282.22 293.36 277.57 285.92 277.00 281.42 276.15 281.10 275.15 282.36 271.93 283.93 268.26 280.90 265.69 273.58 261.00 270.45 Cl2"` CI 3.54 0.00 0.0075 15 5.6 293.32 CI1 CI3 5.84 0.00 0.0242 15 10.1 8.2 135 0.27 293.12 289.86 CI3 CI4 7.43 0.00 0.0567 1200.2.89 0.0318 15 15.4 12.5 135 0.18 CI4 CI6 18 24 24 18.7 22.3 22.6 10.6 138 0.22 7.1 33 0.08 7.2 85 0.20 281.97 CI6 CI8 15.40 1.92 0.0097 277.32 CI8 CI 10 16.75 0.74 0.0100 277.00 276.15 275.15 271.93 268.26 CI 10 SDMH 20 28.38 0.0093 30 39.6 8.1 107 0.22 SDMH 20 SDMH 21 28.29 0.00 0.0120 30 45.0 9.1 268 0.49 SDMH 21 SDMH 22 28.09 0.00 0.0120 30 44.9 9.1 306 0.56 SDMH 22 SDMH 23 27.86 0.00 0.0120 30 44.9 9.1 214 0.39 SDMH 23 FES 24 27.71 0.00 0.0795 30 115.6 23.5 59 0.04 265.69 2.89 27 285.92 Cl5 CI4 0.00 0.0075 15 5.6 4.6 0.10 282.42 282.22 1.92 27 281.42 Cl7 CI6 0.00 0.0075 15 5.6 4.6 0.10 277.52 277.32 0.74 34 281.24 CI CI8 0.00 0.0101 15 6.5 5.3 0.11 277.34 277.00 4.6 27 0.10 291.45 295.36 283.50 295.36 280.28 287.21 278.77 283.78 278.57 282.52 Cl 17 Cl 16 1.84 0.00 0.0075 15 5.6 291.65 291.45 283.50 Cl 16 Cl 13 4.06 0.00 0.0593 15 15.7 12.8 134 0.17 Cl 13 Cl 12 8.78 0.0617 15 16.0 13.1 52 0.07 Cl 12 CI 11 9.11 0.00 0.0459 18 22.5 12.7 27 0.04 280.03 278.77 CI 11 CI 10 0.00 0.0060 18 8.1 4.6 34 0.12 45 27 288.15 287.21 CI 15 Cl 14 2.37 0.00 0.0122 15 7.1 5.8 0.13 284.25 283.70 Cl 14 CI 13 0.00 0.0075 15 5.6 4.6 0.10 283.70 283.50 4.6 27 0.10 307.07 310.58 301.40 310.58 300.04 305.98 299.77 304.19 299.20 304.19 298.00 304.93 291.73 303.69 280.00 296.39 276.44 284.43 274.00 280.94 273.50 278.43 273.00 278.39 261.00 278.39 C125 C126 3.84 0.00 0.0075 15 5.6 307.27 CI26 C127 5.07 0.00 0.0278 0.0205 0.0102 15 18 18 10.8 15.0 10.6 8.8 204 0.39 8.5 54 0.11 6.0 27 0.07 307.07 C127 Cl 18 8.07 2.48E 301.15 Cl 18 C119 8.36 0.00 300.04 299.77 299.20 CI 19 C129 8.47 0.00 9.96 1.39 12.13 1.50 17.65 2.97 21.09 0.0121 18 11.6 6.5 47 0.12 C129 C130 0.0097 18 10.4 5.9 124 0.35 C130 C132 0.0224 18 15.7 8.9 280 0.53 298.00 CI32 C134 0.0540 24 52.6 16.7 214 0.21 291.53 280.00 Cl 34 C136 0.0757 24 62.2 19.8 47 0.04 CI36 C146 21.35 0.00 0.0202 24 32.2 10.2 121 0.20 276.44 274.00 CI46 C145 22.83 0.00 0.0333 24 41.3 13.1 15 0.02 C145 C147 22.97 0.00 0.0189 24 31.1 9.9 27 0.04 273.50 267.00 CI 47 FES 48 24.69 0.00 0.0792 24 63.7 20.2 76 0.06 -F4-8 27 305.98 C128 C127 0.00 0.0075 15 5.6 4.6 0.10 302.48 302.28 1.50 27 303.69 Cl 31 C130 0.00 0.0075 15 5.6 4.6 0.10 300.19 299.99 2.97 0.00 4.6 27 0.10 292.69 296.39 C133 C132 0.0075 15 5.6 292.89 1775 Storm System.xim 10-YEAR Date: 5/10/2022 Time: 6:11 PM Page 2 of 8 n= 0.013 g= 226 h= 26 Cl COVER BOX COVER BELOW IDESTREAl BEND DEPTH SUBGRADEiUMMATIO LOSS (8") (CFS) K FROM TO Cl2"` CI1 3.50 1.13 0.00 0.00 CI1 CI3 3.70 1.32 0.00 0.70 CI3 CI4 3.50 1.12 0.00 0.10 CI4 CI6 3.95 1.33 2.89 0.10 CI6 CI8 4.10 0.97 4.81 0.10 CI8 Cl 10 4.10 0.97 5.56 0.10 Cl 10 SDMH 20 6.21 2.59 14.88 0.70 SDMH 20 SDMH 21 8.78 5.15 14.88 0.70 SDMH 21 SDMH 22 8.97 5.34 14.88 0.00 SDMH 22 SDMH 23 5.32 1.70 14.88 0.28 SDMH 23 FES 24 4.76 1.13 14.88 0.20 CI5 CI4 3.50 1.13 0.00 0.00 CI7 CI6 3.90 1.53 0.00 0.00 CI9 CI8 3.90 1.52 0.00 0.00 Cl 17 Cl 16 3.71 1.34 0.00 0.00 Cl 16 Cl 13 3.91 1.54 0.00 0.70 Cl 13 Cl 12 3.71 1.34 3.14 0.40 Cl 12 Cl 11 3.75 1.12 3.14 0.30 Cl 11 Cl 10 3.75 1.13 3.14 0.70 Cl 15 Cl 14 3.90 1.53 0.00 0.00 Cl 14 Cl 13 3.51 1.14 0.00 0.55 Cl 25 Cl 26 3.31 0.94 0.00 0.00 Cl 26 Cl 27 3.51 1.13 0.00 0.70 Cl 27 Cl 18 4.83 2.20 2.48 0.55 Cl 18 Cl 19 4.15 1.53 2.48 0.40 Cl 19 Cl 29 4.42 1.80 2.48 0.40 Cl 29 Cl 30 5.73 3.11 3.87 0.40 Cl 30 Cl 32 5.69 3.07 5.37 0.00 Cl 32 Cl 34 4.86 1.73 8.33 0.00 Cl 34 Cl 36 4.43 1.30 10.74 0.40 Cl 36 Cl 46 4.50 1.37 10.74 0.40 Cl 46 Cl 45 4.43 1.31 10.74 0.28 Cl 45 Cl 47 4.89 1.77 10.74 0.70 Cl 47 FES 48 11.39 8.27 10.74 0.00 Cl 28 Cl 27 3.50 1.12 0.00 0.00 Cl 31 Cl 30 3.50 1.13 0.00 0.00 Cl 33 Cl 32 3.50 1.12 0.00 0.00 1775 Storm Syscem.xim 10-YEAR Dace: 5n0i2022 Time: 6:11 PM Page 3 of 8 DRAINAGE / HYDRAULIC GRADE LINE SIS (10 YEAR) • • • North Carolina !CJP CHECKED BY n= 0.013 HYDRAULIC GRADE LINE - CONTINUED 9= 226 h= 26 INLET W.S. ELEV. OUTLET OUTLET INLET USE FLOW FREE- HGL FROM TO W.S. ELEV CONTOL CONTROL CONDITIO BOARD FOCROWt COMMENTS CAPACITY VS (FT) (FT) (FT) (FT) JCONTROL (FT) DISCHARGE ri A CI4 284.71 286.88 292.07 292.07 CI6 280.19 282.48 284.71 284.71 CI8 279.78 280.19 279.36 280.19 Cl 10 279.01 279.78 279.23 279.78 DMH 20 277.83 279.01 278.84 279.01 Cl 10 S SDMH 20 SDMH 21 274.59 276.52 277.83 SDMH 21 SDMH 22 270.90 272.62 274.59 SDMH 22 SDMH 23 268.31 269.73 270.90 SDMH 23 FES 24 265.50 266.16 268.31 POND 284.71 Cl5 CI4 284.81 283.28 280.19 Cl7 CI6 280.23 278.25 279.78 Cl9 CI8 279.78 277.98 Cl 17 Cl 16 292.55 292.59 292.37 Cl 16 Cl 13 286.33 287.08 292.55 Cl 13 Cl 12 281.93 283.68 286.33 Cl 12 Cl 11 280.72 279.77 281.30 281.93 Cl 11 Cl 10 280.59 280.72 Cl 15 Cl 14 286.51 286.61 285.04 Cl 14 CI 13 286.51 284.61 Cl 25 Cl 26 308.43 308.61 308.32 Cl 26 Cl 27 304.23 305.82 308.43 Cl 27 Cl 18 303.54 304.23 302.80 Cl 18 Cl 19 303.03 303.54 301.76 Cl 19 Cl 29 302.38 303.03 301.51 Cl 29 Cl 30 300.78 302.38 301.32 286.61 OUTLET 286.51 OUTLET 308.61 OUTLET 308.43 INLET 042 OUTLET 303.54 OUTLET 303.03 OUTLET 302.38 OUTLET Cl 30 Cl 32 293.89 298.04 300.78 300.78 INLET Cl 32 Cl 34 282.94 284.52 293.89 293.89 INLET Cl 34 Cl 36 279.45 280.55 282.94 INLET Cl 36 Cl 46 277.67 279.45 279.43 279.45 OUTLET Cl 46 Cl 45 276.81 277.67 277.28 277.67 OUTLET Cl 45 Cl 47 274.60 275.94 276.81 276.81 INLET Cl 47 FES 48 265.50 266.96 270.66 270.66 INLET POND 265.50 Cl 28 Cl 27 304.31 303.28 304.31 OUTLET Cl 31 Cl 30 300.99 301.02 300.88 301.02 OUTLET 4.76 2.47 1.77 5.70 6.97 2.24 3.10 0.39 3.59 34.92 41.15 10.80 18.48 8.10 38.99 3.13 4.12 DESIGN PHASE PRELIM CONSTR / X / REVISION RECORD OTHER (SPECIFY) DESIGN CRITERIA: 1. DESIGN FOR THE 10 YR STORM 2. ASSUME TIME OF CONCENTRATION TO AN INDIVIDUAL INLET = 5 MIN. (Unless otherwise noted) 3. INTENSITY = g/(h+T), FOR 10 YR STORM (g and h were derived from Raleigh -Durham Intensity - Duration -Frequency Charts, REF: NC Erosion and Sediment Control Planning and Design Manual) 4. MANNINGS "n" FACTOR= 0.013 5. RUNOFF COEFICIENT Cc=0.50 (Per CR-7107) 1775 Storm Syscem.xim 10-YEAR Dace: 5n0/2022 Time: 6:11 PM Page 4 of 8 • " " ' " ' ' PROJECT NAME WOOdshire Phase 8 DATE 10-28-21 PROJECT NO 1775 DESIGN PHASE PRELIM CONSTR / X / REVISION LOCATION Harnett County, North Carolina BY CJP RECORD OTHER CHECKED BY CSB (SPECIFY) n= 0.013 9= 226 h= 26 STORM DRAINAGE SCHEDULE CONTINUED AREAS (INLETS) INLET AREA (AC) INLET Cc RUNOFF COEFF. INLET ISCHARG (CFS) Q (+) JPSTREAN BYPASS (CFS) Q(-) INLET BYPASS (CFS) CAPTURED INLET TOTAL ISCHARG AREAS (CFS) (AC) INLET TIME (MIN) PIPE TIME (MIN) Tc TIME OF CONC. (MIN) I INTENSITY (IN/HR) Cc RUNOFF COEFF. FROM TO 1.59 0.15 C135 C134 C135 0.60 0.55 0.27 1.44 0.60 5.00 0.00 5.00 7.29 0.55 EE 0.55 0.62 0.00 0.02 0.59 0.55 1.45 0.00 0.19 1.27 0.45 1.45 0.19 0.18 1.27 0.55 0.33 0.18 0.00 0.33 0.45 0.61 0.00 0.02 0.59 0.45 0.60 0.02 0.02 0.58 C137 C138 C137 0.28 0.28 5.00 0.00 5.00 7.29 0.55 C138 C140 C138 0.66 0.94 5.00 0.10 5.10 7.27 0.55 C140 C141 C140 0.70 1.64 5.00 0.30 5.30 7.22 0.51 C141 C142 C141 0.07 1.71 5.00 0.40 5.40 7.20 0.51 C142 C143 C142 0.34 2.05 5.00 0.51 5.51 7.17 0.50 C143 C145 C143 0.32 2.37 5.00 0.70 5.70 7.13 0.49 0.66 0.03 EE C139 C140 C139 0.29 0.55 0.02 0.63 0.29 5.00 0.00 5.00 7.29 0.55 0.95 0.08 EE C144 C142 C144 0.42 0.55 0.03 0.87 0.42 5.00 0.00 5.00 7.29 0.55 1.14 0.24 0.00 0.00 0.00 0.00 EE C149 C150 C149 0.45 0.55 0.15 1.14 0.45 5.00 0.00 5.00 7.29 0.55 CI 50 SDMH 51 CI 50 0.08 0.75 0.00 0.24 0.53 5.00 0.08 5.08 7.27 0.58 SDMH 51 FES 52 SDMH 51 0.00 0.90 0.00 0.00 0.53 5.00 0.71 5.71 7.13 0.58 0.87 0.04 EE C153 C129 C153 0.35 0.55 0.10 0.83 0.35 5.00 0.00 5.00 7.29 0.55 3.34 0.00 EEE DRIVEWAY UP DRIVEWAY DIN DRIVEWAY UP 1.52 0.55 0.00 3.34 1.52 5.00 0.00 5.00 7.29 0.55 EE 0.99 3.96 0.00 0.00 3.96 RI 54 FES 55 RI 54 1.00 1.00 5.00 0.00 5.00 7.29 0.99 1775 Storm Syscem.xim 10-YEAR Dace: 5n0i2022 Time: 6:11 PM Page 5 of 8 NAME " I - I-' !!ICJP Phase 8 7Harneft DATE 10-28-21 DESIGN PHASE PRELIMCT CONSTR / Xshlre REVISIONION RECORD OTHER (SPECIFY) PROJECT NO 1775 Count , North Carolina BY CHECKED BY CSB n= 0.013 9= 226 h= 26 STORM DRAINAGE SCHEDULE - CONTINUED Q DISCHARGI (CFS) Q SIDE- STREAM (CFS) SLOPE DIA. (I N) CAPACITY (FULL) (CFS) V FULL (FPS) LENGTH (FT) SEGMENT TIME (MIN) UPPER INV. (FT) UPSTREA LOWER TOP INV. ELEV. (FT) (FT) FROM TO 2.41 27 284.43 C135 C134 0.00 0.0075 15 5.6 4.6 0.10 280.93 280.73 4.6 27 0.10 284.84 288.54 280.42 288.54 278.33 284.42 276.42 282.33 274.40 280.24 274.00 278.43 C137 C138 1.12 0.00 0.0075 15 5.6 285.04 284.84 280.42 278.33 C138 C140 3.76 0.00 1.16 0.00 1.68 0.00 0.0362 15 12.3 10.0 122 0.20 C140 Cl 41 7.17 0.0351 15 12.1 9.9 60 0.10 Cl 41 C142 7.43 0.0321 15 11.6 9.4 60 0.11 CI42 C143 10.19 0.0176 18 14.0 7.9 91 0.19 276.00 274.40 C143 C145 11.17 0.0267 18 17.2 9.7 15 0.03 1.16 27 284.42 C139 C140 0.00 0.0075 15 5.6 4.6 0.10 280.92 280.72 1.68 27 280.24 Cl 44 C142 0.00 0.0121 15 7.1 5.8 0.08 276.74 276.42 27 199 57 269.79 269.79 270.11 C149 C150 1.80 0.00 0.0109 15 6.8 5.5 0.08 266.29 266.00 CI 50 SDMH 51 2.24 0.00 0.0100 15 6.5 5.3 0.63 263.37 261.37 SDMH 51 FES 52 2.19 0.00 0.0065 15 5.2 4.2 0.22 261.37 261.00 100 301.23 304.93 C153 C129 0.00 0.0020 15 2.9 2.4 0.71 301.43 82 301.70 DRIVEWAY UP DRIVEWAY DIN 6.09 0.00 0.0355 18 19.8 11.2 0.12 299.60 296.70 15.7 53 0.06 264.50 272.00 RI 54 FES 55 127.00 0.00 0.0189 48 1973. 265.50 1775 Storm Sysce-lu 10-YEAR Dace: 5n0i2022 Time: 6:11 PM Page 6 of 8 n= 0.013 g= 226 h= 26 Cl COVER BOX COVER BELOW IDESTREAl BEND DEPTH SUBGRADEiUMMATIO LOSS (8") (CFS) K FROM TO Cl 35 Cl 34 3.50 1.12 0.00 0.00 Cl 37 Cl 38 3.50 1.13 0.00 0.90 Cl 38 Cl 40 3.70 1.33 0.00 0.90 Cl 40 Cl 41 4.00 1.62 1.16 0.90 Cl 41 Cl 42 4.00 1.62 1.16 0.90 Cl 42 Cl 43 4.24 1.62 2.85 0.90 Cl 43 Cl 45 4.03 1.41 2.85 0.90 Cl 39 Cl 40 3.50 1.13 0.00 0.90 Cl 44 Cl 42 3.50 1.13 0.00 0.90 Cl 49 Cl 50 3.50 1.13 0.00 0.00 Cl 50 SDMH 51 6.42 4.05 0.00 0.00 SDMH 51 FES 52 8.74 6.37 0.00 0.40 Cl 53 Cl 29 3.50 1.13 0.00 0.00 DRIVEWAY UP DRIVEWAY DIN 2.10 (0.53) 0.00 0.00 RI 54 FES 55 6.50 1.38 0.00 0.90 1775 Storm Syscem.xim 10-YEAR Dace: 5n0i2022 Time: 6:11 PM Page 7 of 8 DRAINAGE / HYDRAULIC GRADE LINE SIS (10 YEAR) • • • North Carolina !CJP CHECKED BY n= 0.013 HYDRAULIC GRADE LINE - CONTINUED 9= 226 h= 26 INLET W.S. ELEV. OUTLET OUTLET INLET USE FLOW FREE- HGL FROM TO W.S. ELEV CONTOL CONTROL CONDITIO BOARD FOCROWt COMMENTS CAPACITY VS (FT) (FT) (FT) (FT) JCONTROLi (FT) DISCHARGE 285.87 282.52 280.54 278.49 282.52 278.49 302.38 DESIGN PHASE PRELIM CONSTR / X / REVISION RECORD OTHER (SPECIFY) DESIGN CRITERIA: 1. DESIGN FOR THE 10 YR STORM 2. ASSUME TIME OF CONCENTRATION TO AN INDIVIDUAL INLET = 5 MIN. (Unless otherwise noted) 3. INTENSITY = g/(h+T), FOR 10 YR STORM (g and h were derived from Raleigh -Durham Intensity - Duration -Frequency Charts, REF: NC Erosion and Sediment Control Planning and Design Manual) 4. MANNINGS "n" FACTOR= 0.013 1775 Storm Syscem.xim 10-YEAR Dace: 5n0/2022 Time: 6:11 PM Page 8 of 8