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HomeMy WebLinkAboutSW6211001_Design Calculations (Drainage Schedule)_20220128• " ` " ' ' PROJECT NAME Wa side Road Apartments DATE )6-25-21 PROJECT NO 927 DESIGN PHASE PRELIM / / CONSTR / X / REVISION LOCATION Hoke County, North Carolina BY CEK 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 DISCHARGE (CFS) Q (+) UPSTREAM BYPASS (CFS) Q(-) INLET BYPASS (CFS) CAPTURED INLET DISCHARGE (CFS) TOTAL AREAS (AC) INLET TIME (MIN) PIPE TIME (MIN) Tc TIME OF CONC. (MIN) I INTENSITY (IN/HR) Cc RUNOFF COEFF. FROM TO DI-1 DI-78 DI-1 0.32 0.90 1.15 0.00 0.00 1.15 0.32 5.00 0.00 5.00 7.29 0.90 DI-78 DI-2 DI-78 0.41 0.85 1.39 0.00 0.00 1.39 0.73 5.00 0.39 5.39 7.20 0.87 DI-2 DI-3 DI-2 0.13 0.90 0.47 0.00 0.00 0.47 0.86 5.00 0.57 5.57 7.16 0.88 DI-3 DI-79 DI-3 0.39 0.85 1.33 0.00 0.00 1.33 1.25 5.00 1.01 6.01 7.06 0.87 DI-79 FES-5 DI-79 0.43 0.90 1.55 0.00 0.00 1.55 1.68 5.00 1.42 6.42 6.97 0.88 BLDG H ROOF BLDG H ROOF BLDG H ROOF 0.40 0.85 1.36 0.00 0.00 1.36 0.40 5.00 0.00 5.00 7.29 0.85 BLDG G ROOF BLDG G ROOF BLDG G ROOF 0.46 0.80 1.49 0.00 0.00 1.49 0.46 5.00 0.00 5.00 7.29 0.80 BLDG F ROOF BLDG F ROOF BLDG F ROOF 0.50 0.80 1.61 0.00 0.00 1.61 0.50 5.00 0.00 5.00 7.29 0.80 BLDG E ROOF BLDG E ROOF BLDG E ROOF 0.52 0.80 1.66 0.00 0.00 1.66 0.52 5.00 0.00 5.00 7.29 0.80 CI-6 CI-7 CI-6 0.14 0.90 0.52 0.00 0.00 0.52 0.14 5.00 0.00 5.00 7.29 0.90 CI-7 DI-2 CI-7 0.16 0.90 0.59 0.00 0.00 0.59 0.31 5.00 0.12 5.12 7.26 0.90 DI-10 DI-11 DI-10 0.39 0.30 0.46 0.00 0.00 0.46 0.39 5.00 0.00 5.00 7.29 0.30 DI-11 DI-80 DI-11 0.40 0.90 1.44 0.00 0.00 1.44 0.79 5.00 0.20 5.20 7.24 0.61 DI-80 DI-12 DI-80 0.17 0.85 0.58 0.00 0.00 0.58 0.96 5.00 0.42 5.42 7.19 0.65 DI-12 DI-13 DI-12 0.79 0.85 2.69 0.00 0.00 2.69 1.75 5.00 0.63 5.63 7.15 0.74 DI-13 DI-15 DI-13 0.31 0.90 1.12 0.00 0.00 1.12 2.06 5.00 1.99 6.99 6.85 0.76 DI-15 DI-16 DI-15 0.38 0.80 1.22 0.00 0.00 1.22 2.44 5.00 2.59 7.59 6.73 0.77 DI-16 FES-17 DI-16 0.28 0.80 0.91 0.00 0.00 0.91 2.73 5.00 3.07 8.07 6.63 0.77 PO-81 CI-6 PO-81 0.13 0.30 0.16 0.00 0.00 0.16 0.13 5.00 0.00 5.00 7.29 0.30 DI-14 DI-13 DI-14 0.43 0.35 0.61 0.00 0.00 0.61 0.43 5.00 0.00 5.00 7.29 0.35 BLDG D ROOF BLDG D ROOF BLDG D ROOF 0.42 0.80 1.35 0.00 0.00 1.35 0.42 5.00 0.00 5.00 7.29 0.80 BLDG C ROOF BLDG C ROOF BLDG C ROOF 0.36 0.80 1.16 0.00 0.00 1.16 0.36 5.00 0.00 5.00 7.29 0.80 BLDG B ROOF BLDG B ROOF BLDG B ROOF 0.40 0.80 1.29 0.00 0.00 1.29 0.40 5.00 0.00 5.00 7.29 0.80 BLDG A ROOF BLDG A ROOF BLDG A ROOF 0.33 0.80 1.05 0.00 0.00 1.05 0.33 5.00 0.00 5.00 7.29 0.80 JB-18 DI-19 JB-18 0.00 0.30 0.00 0.00 0.00 0.00 0.00 5.00 0.00 5.00 7.29 0.30 DI-19 DI-21 DI-19 0.35 0.75 1.06 0.00 0.00 1.06 0.35 5.00 0.25 5.25 7.23 0.75 DI-21 FES-22 DI-21 0.12 0.90 0.42 0.00 0.00 0.42 0.47 5.00 0.62 5.62 7.15 0.79 POOLAREA POOLAREA POOLAREA 0.93 0.65 2.41 0.00 0.00 2.41 0.93 5.00 0.00 5.00 7.29 0.65 CI-23 CI-24 CI-23 0.06 1 0.75 0.17 1 0.00 0.00 0.17 0.06 5.00 0.00 5.00 7.29 0.75 927-Storm Drainage for Spread.xls 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 1 of 8 A artments 7HoVeCounty, DATE 06-25-21 PROJECT NO 927 DESIGN PHASE PRELIMAME CONSTR / Xoad REVISION North Carolina BY CEK RECORD OTHER CHECKED BY CSB (SPECIFY) n= 0.013 9= 226 h= 26 STORM DRAINAGE SCHEDULE - CONTINUED Q DISCHARGE (CFS) Q SIDE- STREAM (CFS) SLOPE DIA. (IN) CAPACITY (FULL) (CFS) V FULL (FPS) LENGTH (FT) SEGMENT TIME (MIN) UPPER INV. (FT) LOWER INV. (FT) UPSTREAM TOP ELEV. (FT) FROM TO 2.47 0.00 DI-1 DI-78 4.56 0.0097 15 6.4 5.2 120 0.39 261.76 260.59 265.58 DI-78 DI-2 7.04 0.0098 18 10.4 5.9 63 0.18 260.34 259.72 264.52 DI-2 DI-3 12J 0.0099 24 22.6 7.2 191 0.44 259.22 257.32 263.83 DI-3 DI-79 18.07 0.0078 24 20.0 6.4 155 0.41 257.31 256.10 261.92 DI-79 FES5 26.97 0.0055 30 30.4 6.2 82 0.22 250.95 250.50 260.20 2.47 BLDG H ROOF BLDG H ROOF 0.00 #DIV/01 10 #DIV/01 #DIV/01 0 #DIV/01 0.00 0.00 0.00 BLDG G ROOF BLDG G ROOF 0.00 #DIV/01 10 #DIV/01 #DIV/01 0 #DIV/01 0.00 0.00 0.00 BLDG F ROOF BLDG F ROOF 0.00 #DIV/01 10 #DIV/01 #DIV/01 0 #DIV/01 0.00 0.00 0.00 BLDG E ROOF BLDG E ROOF 0.00 #DIV/01 10 #DIV/01 #DIV/01 0 #DIV/01 0.00 0.00 0.00 1.23 a 0.00 CI-6 CI-7 0.0052 15 4.6 3.8 27 0.12 260.37 260.23 264.07 CI-7 DI-2 0.0095 15 6.3 5.1 27 0.09 260.23 259.97 264.07 DI-10 DI-11 0.00 0.0051 15 4.6 3.8 46 0.20 261.68 261.45 264.13 DI-11 DI-80 0.00 0.0175 15 8.6 7.0 91 0.22 261.45 259.85 265.19 DI-80 DI-12 0.00 0.0114 . 7 0.0049 15 6.9 5.6 70 0.21 259.85 259.05 264.55 DI-12 DI-13 24 15.8 5.0 411 1.37 258.30 256.30 262.75 DI-13 DI-15 DI-15 DI-16 0.0053 .35 0.0057 0.00 0.0409 :22.03 24 24 16.5 17.1 5.3 5.4 187 158 0.59 0.48 256.30 255.30 255.30 254.40 263.75 262.31 DI-16 FES-17 24 45.8 14.5 103 0.12 254.40 250.20 261.07 P0�1 Cl-6 0.00 0.0507 15 14.5 11.8 14 0.02 261.08 260.37 263.83 DI-14 DI-1 0.00 0.0052 15 4.7 3.8 159 0.70 260.93 260.10 263.38 BLDG D ROOF BLDG D ROOF 0.00 0.0000 15 0.0 0.0 46 #DIV/01 0.00 0.00 0.00 BLDG C ROOF BLDG C ROOF 0.00 0.0051 15 4.6 3.8 46 0.20 261.68 261.45 264.13 BLDG B ROOF BLDG B ROOF 0.00 0.0051 15 4.6 3.8 46 0.20 261.68 261.45 264.13 1.92 BLDG A ROOF BLDG A ROOF 0.00 0.0051 15 4.6 3.8 46 0.20 261.68 261.45 264.13 0.0052 JB-18 DI-19 4.39 15 4.6 3.8 56 0.25 253.30 253.01 261.36 DI-19 DI-21 6.30 0.00 0.0053 15 4.7 3.8 87 0.38 253.01 252.55 258.58 DI-21 FES-22 8.95 0.0429 18 21.7 12.3 49 0.07 252.30 250.20 259.01 POOLAREA POOLAREA 0.00 0.0051 1 15 4.6 3.8 46 0.20 261.68 261.45 264.13 CI-23 CI-24 0.31 0.00 0.0052 15 4.7 3.8 23 0.10 253.92 253.80 257.80 927-Storm Drainage for Spread.zls 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 2 of 8 • " ` ` ` PROJECT NAME Wa side Road Apartments DATE 06-25-21 PROJECT NO 927 DESIGN PHASE PRELIM CONSTR / X / REVISION LOCATION Hoke County, North Carolina BY CEK RECORD OTHER CHECKED BY CSB (SPECIFY) n= 0.013 g= 226 h= 26 HYDRAULIC GRADE LINE CONTINUED i BEND LOSS K'S 90 DEG=0.7 30 DEG=0.28 60 DEG=0.55 15 DEG=0.10 PIPE HYDRAULIC SIDESTREAM HEAD LOSS BEND FRICTION FRICTION AREA RADIUS SUMMATION Hf He He Hb Ht LOSS SLOPE VELOCITY (FT) (FT) (CFS) K (FT/FT) (FPS) FROM TO DI-1 DI-78 1.2272 0.3125 2.47 0.60 0.05 0.07 0.02 0.75 0.10 0.0050 3.70 DI-78 DI-2 1.7671 0.3750 2.47 0.28 0.06 0.09 0.02 0.45 0.10 0.0045 3.97 DI-2 DI-3 3.1416 0.5000 7.48 0.61 0.06 0.09 0.03 0.79 0.10 0.0032 4.07 DI-3 DI-79 3.1416 0.5000 10.42 0.98 0.13 0.18 0.36 1.64 0.70 0.0063 5.72 DI-79 FES5 4.9087 0.6250 16.72 0.35 0.12 0.16 0.05 0.67 0.10 0.0043 5.46 BLDG H ROOF BLDG H ROOF 0.5454 0.2083 0.00 0.00 0.08 0.11 0.00 0.19 0.00 0.0127 4.52 BLDG G ROOF BLDG G ROOF 0.5454 0.2083 0.00 0.00 0.10 0.13 0.00 0.23 0.00 0.0153 4.96 BLDG F ROOF BLDG F ROOF 0.5454 0.2083 0.00 0.00 0.11 0.16 0.00 0.27 0.00 0.0180 5.38 BLDG E ROOF BLDG E ROOF 0.5454 0.2083 0.00 0.00 0.12 0.17 0.00 0.29 0.00 0.0191 5.55 CI-6 CI-7 1.2272 0.3125 0.28 0.01 0.00 0.01 0.01 0.03 0.70 0.0004 1.00 CI-7 DI-2 1.2272 0.3125 0.28 0.03 0.01 0.02 0.04 0.10 0.70 0.0013 1.86 DI-10 DI-11 1.2272 0.3125 0.00 0.01 0.00 0.00 0.01 0.02 0.70 0.0002 0.68 DI-11 DI-80 1.2272 0.3125 0.00 0.26 0.03 0.04 0.01 0.34 0.10 0.0028 2.80 DI-80 DI-12 1.2272 0.3125 0.00 0.33 0.05 0.07 0.14 0.60 0.70 0.0048 3.63 DI-12 DI-13 3.1416 0.5000 2.47 1.09 0.05 0.07 0.02 1.24 0.10 0.0027 3.71 DI-13 DI-15 3.1416 0.5000 5.69 0.98 0.11 0.15 0.04 1.28 0.10 0.0053 5.22 DI-15 DI-16 3.1416 0.5000 8.05 1.31 0.17 0.23 0.07 1.78 0.10 0.0083 6.56 DI-16 FES-17 3.1416 0.5000 8.05 0.97 0.19 0.26 0.08 1.49 0.10 0.0094 6.98 PO-81 CI-6 1.2272 0.3125 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.0000 0.23 DI-14 DI-13 1.2272 0.3125 0.00 0.05 0.00 0.00 0.01 0.06 0.70 0.0003 0.90 BLDG D ROOF BLDG D ROOF 1.2272 0.3125 0.00 0.07 0.02 0.02 0.04 0.15 0.70 0.0015 2.00 BLDG C ROOF BLDG C ROOF 1.2272 0.3125 0.00 0.05 0.01 0.02 0.03 0.11 0.70 0.0011 1.72 BLDG B ROOF BLDG B ROOF 1.2272 0.3125 0.00 0.06 0.01 0.02 0.04 0.13 0.70 0.0013 1.91 BLDG A ROOF BLDG A ROOF 1.2272 0.3125 0.00 0.04 0.01 0.01 0.03 0.09 0.70 0.0009 1.56 JB-18 DI-19 1.2272 0.3125 4.39 0.26 0.05 0.07 0.11 0.49 0.55 0.0046 3.57 DI-19 DI-21 1.2272 0.3125 4.39 0.82 0.10 0.14 0.28 1.35 0.70 0.0095 5.12 DI-21 FES-22 1.7671 0.3750 6.31 0.35 0.10 0.14 0.04 0.63 0.10 0.0072 5.04 POOLAREA POOLAREA 1.2272 0.3125 0.00 0.21 0.05 0.07 0.14 0.47 0.70 0.0046 3.57 CI-23 CI-24 1.2272 0.3125 0.00 0.00 0.00 0.00 0.00 0.00 0.55 0.0000 0.25 927-Storm Drainage for Spread As 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 3 of 8 • " ` ` ` PROJECT NAME Wayside Road Apartments DATE 06-25-21 PROJECT NO 927 DESIGN PHASE PRELIM / / CONSTR / X / REVISION LOCATION Hoke C0un ,North Carolina BY CEK RECORD OTHER CHECKED BY CS13 (SPECIFY) n= g= h= 0.013 226 26 HYDRAULIC GRADE LINE - CONTINUED 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: INC Erosion and Sediment Control Planning and Design Manual) 4. MANNINGS "n" FACTOR= 0.013 5. RUNOFF COEFICIENT Cc=0.50 (Per CR-7107) OUTLET W.S. ELEV (FT) INLET W.S. ELEV. FLOW CONDITION CONTROL FREE- BOARD (FT) COMMENTS FROM TO OUTLET INLET CONTOL CONTROL (FT) (FT) USE (FT) CIA DI-78 261.78 262.52 262.98 262.98 INLET 2.60 OK DI-78 DI-2 260.94 261.40 261.78 261.78 INLET 2.74 OK DI-2 DI-3 259.74 260.53 260.94 INLET 2.89 OK DI-3 DI-79 257.70 259.34 259.74 259.74 INLET 2.18 OK DI-79 FES5 254.93 255.60 253.50 OUTLET 4.60 OK 10-YR STORM ELEV 254.93 BLDG H ROOF BLDG H ROOF 0.67 0.86 1.30 1.30 INLET (1.30) OVERFLOW BLDG G ROOF BLDG G ROOF 0.67 0.90 1.48 1.48 INLET (1.48) OVERFLOW BLDG F ROOF BLDG F ROOF 0.67 0.94 1.67 1.67 INLET (1.67) OVERFLOW BLDG E ROOF BLDG E ROOF 0.67 0.95 1.75 1.75 INLET (1.75) OVERFLOW 261.07 CI-6 CI-7 261.23 261.26 261.04 OUTLET 2.81 OK CI-7 DI-2 261.07 261.01 OUTLET 3.00 OK CIA CIA 262.77 262.79 262.33 262.79 OUTLET 1.34 OK CIA DI-80 262.42 262.77 262.42 262.77 OUTLET 2.42 OK DI-80 DI-12 261.82 262.42 261.05 262.42 OUTLET 2.13 OK DI-12 CIA 260.58 261.82 259.90 261.82 OUTLET 0.93 OK CIA CIA CIA DI-16 259.30 257.52 260.58 259.30 258.49 258.17 259.30 OUTLET OUTLET 3.17 3.01 OK OK DI-16 FES-17 255.20 256.69 257.52 257.52 INLET 3.55 OK 10-YR STORM ELEV 255.20 PO-81 Cl-6 261.37 261.71 261.71 INLET 2.12 OK DI-14 CIA 261.16 261.59 261.59 INLET 1.79 OK BLDG D ROOF BLDG D ROOF 1.00 1.15 0.80 1.15 OUTLET (1.15) OVERFLOW BLDG C ROOF BLDG C ROOF 262.45 262.56 262.44 262.56 OUTLET 1.57 OK BLDG B ROOF BLDG B ROOF 262.45 262.58 262.47 262.58 OUTLET 1.55 OK BLDG A ROOF BLDG A ROOF 262.45 262.54 262.41 262.54 OUTLET 1.59 OK JB-18 DI-19 257.18 257.66 254.48 257.66 OUTLET 3.70 OK CIA DI-21 255.83 257.18 254.77 257.18 OUTLET 1.40 OK DI-21 FES-22 255.20 255.83 254.16 255.83 OUTLET 3.18 OK 10-YR STORM ELEV 255.20 POOLAREA POOLAREA 262.45 262.92 262.86 262.92 OUTLET 1.21 OK CI-23 CI-24 256.15 256.15 254.55 256.15 OUTLET 1.65 OK 927-Storm Drainage for Spread.zls 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 4 of 8 • " ` " ' ' PROJECT NAME Wa side Road Apartments DATE )6-25-21 PROJECT NO 927 DESIGN PHASE PRELIM / / CONSTR / X / REVISION LOCATION Hoke County, North Carolina BY CEK 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 DISCHARGE (CFS) Q (+) UPSTREAM BYPASS (CFS) Q(-) INLET BYPASS (CFS) CAPTURED INLET DISCHARGE (CFS) TOTAL AREAS (AC) INLET TIME (MIN) PIPE TIME (MIN) Tc TIME OF CONC. (MIN) I INTENSITY (IN/HR) Cc RUNOFF COEFF. FROM TO CI-24 DI-20 CI-24 0.03 0.75 0.10 0.00 0.00 0.10 0.09 5.00 0.10 5.10 7.27 0.75 DI-20 DI-4 DI-20 0.07 0.90 0.26 0.00 0.00 0.26 0.16 5.00 0.52 5.52 7.17 0.82 DI-4 CI-79 DI-4 0.39 0.85 1.32 0.00 0.00 1.32 0.55 5.00 1.05 6.05 7.05 0.84 FES-31 JB-25 FES-31 2.07 0.35 2.90 0.00 0.00 2.90 2.07 5.00 0.00 5.00 7.29 0.35 JB-25 FES-26 JB-25 0.00 0.90 0.00 0.00 0.00 0.00 2.07 5.00 0.41 5.41 7.20 0.35 RI-26 FES-27 RI-26 RI-28 FES-30 RI-28 PIPE 1 IN PIPE 1 OUT PIPE 1 IN PIPE 2 IN PIPE 2 OUT PIPE 2 IN 927-Storm Drainage for Spread As 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 5 of 8 A artments 7HoVeCounty, DATE 06-25-21 PROJECT NO 927 DESIGN PHASE PRELIMAME CONSTR / Xoad REVISION North Carolina BY CEK RECORD OTHER CHECKED BY CSB (SPECIFY) n= 0.013 9= 226 h= 26 STORM DRAINAGE SCHEDULE - CONTINUED Q DISCHARGE (CFS) Q SIDE- STREAM (CFS) SLOPE DIA. (IN) CAPACITY (FULL) (CFS) V FULL (FPS) LENGTH (FT) SEGMENT TIME (MIN) UPPER INV. (FT) LOWER INV. (FT) UPSTREAM TOP ELEV. (FT) FROM TO 0.00 CI-24 DI-20 0.50 0.0059 15 5.0 4.1 101 0.42 253.80 253.20 257.80 DI-20 DI-4 0.96 0.00 0.0050 15 4.6 3.7 119 0.53 253.20 252.60 260.17 DI-4 CI-79 0.0052 18 7.6 4.3 77 0.30 252.35 251.95 258.25 FES-31 JB-25 5.28 0.00 0.0048 18 7.3 4.1 100 0.41 261.13 260.65 264.24 JB-25 FES-26 5.21 0.00 0.0049 18 7.4 4.2 120 0.48 260.65 260.06 265.85 RI-26 FES-27 49.40 0.00 0.0084 36 61.1 8.6 72 0.14 249.70 249.10 257.80 RI-28 FES-30 44.45 0.00 0.0275 30 68.0 13.8 120 0.14 251.70 248.40 256.70 PIPE 1 IN PIPE 1 OUT 1.56 0.00 0.0053 18 7.6 4.3 85 0.33 263.69 263.24 266.49 PIPE 2 IN PIPE 2 OUT 1 9.38 1 0.00 1 0.0051 24 16.1 5.1 75 0.24 1 248.68 248.30 251.82 927-Storm Drainage for Spread As 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 6 of 8 • " ` PROJECT NAME Wa side Road Apartments ` ` DATE 06-25-21 PROJECT NO 927 DESIGN PHASE PRELIM CONSTR REVISION / X / LOCATION Hoke County, North Carolina BY CEK RECORD OTHER CHECKED BY CSB (SPECIFY) n= g= h= 0.013 226 26 HYDRAULIC GRADE LINE PIPE HYDRAULIC SIDESTREAM AREA RADIUS SUMMATION (FT) (FT) (CFS) Hf He 90 DEG=0.7 60 DEG=0.55 HEAD LOSS He BEND LOSS Hb K'S 30 DEG=0.28 15 DEG=0.10 Ht BEND LOSS K CONTINUED FRICTION SLOPE (FT/FT) i FRICTION VELOCITY (FPS) FROM TO CI-24 DI-20 1.2272 0.3125 0.00 0.01 0.00 0.00 0.00 0.01 0.55 0.0001 0.40 DI-20 DI-4 1.2272 0.3125 0.00 0.03 0.00 0.00 0.00 0.03 0.28 0.0002 0.78 DI-4 CI-79 1.7671 0.3750 3.03 0.27 0.05 0.07 0.11 0.50 0.55 0.0036 3.55 FES-31 JB-25 1.7671 0.3750 0.00 0.25 0.03 0.05 0.04 0.37 0.28 0.0025 2.98 JB-25 FES-26 1.7671 0.3750 0.00 0.29 0.03 0.05 0.01 0.39 0.10 0.0024 2.94 RI-26 FES-27 7.0686 0.7500 0.00 0.39 0.19 0.26 0.07 0.91 0.10 0.0054 6.94 RI-28 FES-30 4.9087 0.6250 0.00 1.40 0.31 0.44 0.13 2.28 0.10 0.0116 9.00 PIPE 1 IN PIPE 1 OUT 1.7671 0.3750 0.00 0.02 0.00 0.00 0.00 0.03 0.10 0.0002 0.88 PIPE 2 IN PIPE 2 OUT 3.1416 0.5000 0.00 1 0.13 0.03 0.05 0.01 0.22 0.10 0.0017 2.97 927-Storm Drainage for Spread As 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 7 of 8 • " ` ` ` PROJECT NAME Wayside Road Apartments DATE 06-25-21 PROJECT NO 927 DESIGN PHASE PRELIM / / CONSTR / X / REVISION LOCATION Hoke C0un ,North Carolina BY CEK RECORD OTHER CHECKED BY CS13 (SPECIFY) n= 0.013 g= 226 h= 26 HYDRAULIC GRADE LINE - CONTINUED 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: INC Erosion and Sediment Control Planning and Design Manual) 4. MANNINGS "n" FACTOR= 0.013 OUTLET W.S. ELEV (FT) INLET W.S. ELEV. FLOW CONDITION CONTROL FREE- BOARD (FT) COMMENTS FROM TO OUTLET INLET USE CONTOL CONTROL (FT) (FT) (FT) CI-24 DI-20 256.14 256.15 254.43 256.15 OUTLET 1.65 OK DI-20 DI-4 256.10 256.14 253.85 256.14 OUTLET 4.03 OK DI-4 CI-79 256.10 253.65 256.10 OUTLET 2.15 OK FES-31 JB-25 261.85 262.22 262.27 262.27 INLET 1.97 OK JB-25 FES-26 261.26 261.65 261.78 261.78 INLET 4.07 OK EXISTING GROUND 260.06 RI-26 FES-27 251.50 252.41 253.31 253.31 INLET 4.49 OK EXISTING GROUND 250.90 RI-28 FES-30 250.40 252.68 256.49 256.49 INLET 0.21 OVERFLOW EXISTING GROUND 248.40 PIPE 1 IN PIPE 1 OUT 264.44 264.47 264.47 264.47 INLET 2.02 OK PIPE 2 IN PIPE 2 OUT 249.90 250.12 250.06 250.12 OUTLET 1.70 OK 927-Storm Drainage for Spread As 10-YEAR Date: 1/2812022 Time: 1:57 PM Page 8 of 8