Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
SW6230705_Design Calculations_20240304 (43)
STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED ► g= 226 h= 26 INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREA INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARG AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) No pipe I No pipe No pipe 0.90 0.00 0.15 MNo pipe No pip No pipe 0.65 0.15 lo pipe CI' No pipe 0.37 .12 CI 7 CI11 CI 7 0.64 0.40 1.08 0.07 0.12 0.97 0.64 5.00 1.04 6.04 7.05 0.40 CI11 CI 10 CI11 0.37 0.50 1.03 0.29 0.07 0.96 1.01 5.00 1.37 6.37 6.98 0.44 CI 10 CI 9 CI 10 0.70 0.55 1.81 0.27 0.29 1.52 1.71 5.00 1.92 6.92 6.86 0.48 CI 9 CI 12 CI 9 0.71 0.60 1.70 0.00 0.27 1.43 2.42 5.00 2.41 7.41 6.76 0.52 CI 12 CI 13 CI 12 0.23 0.45 0.42 0.00 0.03 0.39 2.65 5.00 3.23 8.23 6.60 0.51 CI 13 CI 14 CI 13 0.39 0.50 0.81 0.03 0.08 0.73 3.04 5.00 3.56 8.56 6.54 0.51 CI 14 CI 16 CI 14 0.07 0.60 0.18 0.00 0.00 0.17 3.11 5.00 3.83 8.83 6.49 0.51 CI 16 CI 18 CI 16 0.22 0.60 0.53 0.00 0.04 0.49 3.33 5.00 4.00 9.00 6.46 0.52 CI 18 CI 22 CI 18 0.45 0.65 1.22 0.04 0.20 1.02 3.78 5.00 4.17 9.17 6.43 0.53 CI 22 SDMH 191 CI 22 0.59 0.60 1.71 0.30 0.00 1.71 4.37 5.00 4.25 9.25 6.41 0.54 SDMH 191 FES 192 SDMH 191 0.00 0.90 0.00 0.00 0.00 0.00 4.37 5.00 4.36 9.36 6.39 0.54 No pipe No pipe No pipe 0.27 0.90 0.00 0.11111110.83 0.27 5.00 0.00 5.00 7.29 0.90 No pipe No pipe No pipe 0.05 0.85 0.17 0.00 0.35 0.32 5.00 0.13 5.13 7.26 0.89 No pipe No pipe No pipe 0.13 0.90 0.31 0.03 0.74 0.13 5.00 0.00 5.00 7.29 0.90 CI 8 CI 9 CI 8 0.78 0.60 0.00 . 1 1.56 0.78 5.00 0.00 5.00 7.29 0.60 CI 15 CI 14 CI 15 0.23 0.60 0.00 0.05 0.51 0.23 5.00 0.00 5.00 7.29 0.60 CI 17 CI 16 CI 17 0.47 0.70 0.05 0.24 1.13 0.47 5.00 0.00 5.00 7.29 0.70 CI 19 CI 18 CI 19 0.33 0.65 .1.10 0.24 0.11 0.99 0.33 5.00 0.00 5.00 7.29 0.65 CI 20 CI 21 CI 20 0.51 0.65 1.44 0.11 0.24 1.20 0.51 5.00 0.00 5.00 7.29 0.65 CI 21 CI 22 CI 21 0.41 0.60 1.22 0.24 0.10 1.12 0.92 5.00 0.17 5.17 7.25 0.63 CI 40 CI 41 CI 40 0.98 0.50 1.95 0.00 0.47 1.48 0.98 5.00 0.00 5.00 7.29 0.50 CI 41 CI 43 CI 41 0.48 0.50 1.43 0.47 0.28 1.15 1.46 5.00 0.14 5.14 7.26 0.50 CI43 CI44 CI43 0.18 0.70 0.99 0.47 0.10 0.89 1.64 5.00 0.27 5.27 7.23 0.52 CI 44 CI 9 CI 44 0.05 0.80 0.25 0.08 0.01 0.25 1.69 5.00 0.34 5.34 7.21 0.53 CI 42 CI 41 CI 42 0.28 0.65 0.73 0.00 11.1..11 0.64 0.28 5.00 0.00 5.00 7.29 0.65 SCM 12 ABOVE CI 39 CI 38 CI 39 0.22 0.45 0.40 0.00 0.02 0.38 0.22 5.00 0.00 5.00 7.29 0.45 CI 38 CI 64 CI 38 0.45 0.45 0.81 0.00 0.02 0.79 0.67 5.00 0.09 5.09 7.27 0.45 CI 64 CI 65 CI 64 0.58 0.40 0.95 0.02 0.12 0.82 1.25 5.00 0.27 5.27 7.23 0.43 CI 65 CI 45 CI 65 0.05 0.90 0.18 0.00 0.00 0.17 1.30 5.00 0.36 5.36 7.21 0.44 CI45 CI46 CI45 0.05 0.87 0.18 0.00 0.00 0.18 1.35 5.00 0.48 5.48 7.18 0.46 1975 Stomi.xlsx 10-YEAR Date:3/4/2024 Time:11.51 AM Page 1 of 32 STORM DRAINAGE/HYDRAULIC GRADE LIII DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 9 h= 26 Q Q UPSTREAM SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) No pipe I No pipe 01 0.00 1.43% 10 2.6 4.8 32 0.11 336.80 336.35 341.20 No pipe No pi 1 0.00 0.64% 10 1.7 3.2 31 336.15 335.9 341.03 o pipe CI 1 0.00 0.50% 10 1.5 9 R 131 35.50 334 :,1.19 CI 7 CI11 1.81 0.00 0.49% 15 4.5 3.7 73 0.33 339.00 338.64 342.46 CI11 CI 10 3.07 0.00 0.51% 15 4.6 3.7 124 0.55 338.64 338.01 343.17 CI 10 CI 9 5.67 0.00 0.50% 18 7.4 4.2 123 0.49 B 344.38 CI 9 CI 12 19.67 11.21 0.50% 30 29.0 5.9 290 0.82 336.65 335.20 345.59 CI 12 CI 13 20.15 0.00 0.50% 30 29.1 5.9 117 0.33 335.20 334.61 347.68 CI 13 CI 14 21.35 0.00 0.60% 30 31.9 6.5 103 0.26 334.61 333.99 345.59 CI 14 CI 16 22.57 1.01 1.76% 30 54.4 11.1 112 0.17 333.99 332.02 343.40 CI 16 CI 18 25.77 2.40 I 1.63% 30 52.3 10.6 112 0.18 332.02 330.20 339.85 CI 18 CI 22 29.18 1.57 1.44% 30 49.2 10.0 49 0.08 330.20 329.50 336.54 CI 22 SDMH 191 35.62 4.19 8.70% 30 121.0 24.6 167 0.11 329.50 315.00 335.35 SDMH 191 FES 192 35.57 0.00 1.00% 30 41.0 8.3 60 0.12 308.60 308.00 320.09 No pipe No pipe 2.62 0.84 0.49% 15 4.5 3.7 28 0.13 336.66 336.52 :,1.19 No pipe No pipe 2.93 0.00 0.52% 15 4.7 3.8 33 0.14 336.52 336.35 341.03 No pipe No pipe 0.84 0.00 1.05% 15 6.6 5.4 29 0.09 336.82 336.52 CI 8 CI 9 3.40 0.00 0.89% 15 6.1 5.0 33 I 341.21 340.92 345.59 CI 15 CI 14 1.01 0.00 1.13% 15 6.9 5.6 27 0.08 339.00 338.70 CI 17 CI 16 2 5.6 2 0.08 335.45 335.15 :39.86 CI 19 CI 18 0.00 1.13% 15 6.9 5.6 15: 332.15 331.85 CI 20 CI 21 2.42 0.00 0.94% 15 6.3 5.1 53 0.17 331.50 331.00 • 5.91 CI 21 CI 22 0.00 0.89% 15 6.1 5.0 34 0.11 331.00 330.70 :35.56 CI 40 CI 41 3.56 0.00 4.37% 15 13.5 11.0 94 0.14 349.70 345.60 354.09 CI 41 CI 43 6.61 1.32 4.26% 15 13.3 10.8 86 0.13 345.50 341.85 350.10 CI43 CI44 7.52 0.00 1.51% 15 7.9 6.5 27 0.07 338.82 338.42 346.35 CI 44 CI 9 7.81 0.00 0.97% 18 10.3 5.8 0.15 338.17 337.65 346.35 CI 42 CI 41 0.00 0.75% 15 5.6 S I 345.70 345.50 350.10 SCM 12 ABOVE CI 39 CI 38 0.73 0.00 0.83% 15 5.9 4.8 27 0.09 E 361.96 CI 38 CI 64 2.20 0.00 0.80% 15 5.8 4.7 49 0.17 357.34 356.95 361.96 CI 64 CI 65 3.87 0.00 0.79% 15 5.8 4.7 27 0.09 356.95 356.74 362.68 CI 65 CI 45 4.17 0.00 1.99% 15 9.1 7.4 52 0.12 356.74 355.70 362.68 CI45 CI46 4.48 0.00 2.64% 15 10.5 8.5 99 - 0.19 355.70 353.10 360.11 1975 Stern 10-YEAR Date:3/4/2024 Time:11.51 AM Page 2 of 32 BEND LOSS KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 Cl COVER BOX COVER BELOW .IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS (8") (CFS) K No pipe I No pipe 0.00 No pipe No pipe .00 No pipe CI 7 28 CI 7 CI11 3.46 2.21 1.08 0.00 0.28 CI11 CI 10 4.53 3.28 2.16 0.00 0.28 CI 10 CI9 6.62 5.12 4.00 0.00 0.00 CI 9 CI 12 8.94 6.44 5.32 11.21 0.00 CI 12 CI 13 12.48 9.98 8.85 11.21 0.70 CI 13 CI 14 10.98 8.48 7.35 11.21 0.28 CI 14 CI 16 9.41 6.91 5.78 12.23 0.28 CI 16 CI 18 7.83 5.33 4.21 14.63 0.28 CI 18 CI 22 6.34 3.84 2.72 16.20 0.70 CI 22 SDMH 191 5.85 3.35 2.23 20.40 0.28 SDMH 191 FES 192 11.49 8.99 7.86 20.40 0.00 No pipe No pipe 4.53 3.28 2.15 0.84 0.70 No pipe No pipe 4.51 3.26 2.13 0.84 0.70 No pipe No pipe 4.37 3.12 2.00 0.00 0.70 CI 8 CI 9 4.38 3.13 2.01 0.00 0.70 CI 15 CI 14 4.40 3.15 2.02 0.00 0.70 CI 17 CI16 4.41 3.16 2.04 0.00 0.70 CI 19 CI18 4.39 3.14 2.02 0.00 0.70 CI20 CI21 4.41 3.16 2.04 0.00 0.55 CI 21 CI 22 4.56 3.31 2.19 0.00 0.70 CI40 CI41 4.39 3.14 2.01 0.00 0.00 CI 41 CI 43 4.60 3.35 2.23 1.32 0.70 CI43 CI44 7.53 6.28 5.16 1.32 0.28 CI44 CI9 8.18 6.68 5.56 1.32 0.40 CI42 CI41 4.40 3.15 2.03 0.00 0.70 SCM 12 ABOVE CI39 CI38 4.40 3.15 2.02 0.00 0.55 CI 38 CI 64 4.62 3.37 2.25 0.00 0.40 CI 64 CI 65 5.73 4.48 3.36 0.00 0.40 CI 65 CI 45 5.94 4.69 3.57 0.00 0.40 CI 45 CI 46 4.41 2.04 0.00 0.10 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 3 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD ro CROWN COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) I CONTROL (FT) DISCHARGE Sediment Control Planning and Design Manual) 4.MANNINGS"n"FACTOR=0.013 No pip No pipe 339.73 339.73 337.22 339.73 OUTLET 1.47 (2.09) OK 2.61 5.RUNOFF COEFICIENT Cc=0.50(Pe No pip No pipe ' 3 339.73 336.57 339.73 OUTLET 1.30 (2.74) OK 1.74 No pip CI 7 339.73 335.92 339.73 OUTLET 1.46 (3.39) •. 1.53 CI 7 CI11 339.64 339.73 339.72 339.73 OUTLET 2.73 0.52 OK 2.73 CI11 CI 10 339.04 339.41 339.53 MU= INLET 3.64 0.36 OK 1.53 CI 10 CI 9 338.59 339.04 338.95 339.04 OUTLET 5.34 0.22 OK 1.73 CI9 CI 12 337.30 338.11 338.59 INLET 7.00 0.56 OK 9.34 CI 12 CI 13 336.68 337.30 337.18 337.30 OUTLET 10.38 0.40 OK 8.95 CI 13 CI 14 336.15 336.68 336.68 336.68 OUTLET 8.91 0.43 OK 10.54 CI 14 CI 16 334.78 335.40 336.15 336.15 INLET 7.25 0.34 OK 31.79 CI 16 CI 18 333.97 334.78 334.46 334.78 OUTLET 5.07 (0.26) OK 26.52 CI 18 CI 22 333.02 333.97 332.97 333.97 OUTLET 2.57 (1.27) OK 20.05 CI 22 SDMH 191 317.36 319.32 333.02 333.02 INLET 2.33 (1.02) OK 85.38 SDMH 191 FES 192 316.43 317.36 312.11 317.36 OUTLET 2.73 (6.26) OK 5.42 10yr Pond 316.43 No pipe No pipe 339.91 340.04 337.48 340.04 OUTLET 1.15 (2.13) OK 1.91 No pipe No pipe 339.73 339.91 337.39 339.91 OUTLET 1.12 (2.14) OK 1.75 No pipe No pipe 340.04 340.06 337.47 340.06 OUTLET 1.13 (1.99) OK 5.78 CI 8 CI 9 341.9 342.16 342.17 342.17 INLET 3.42 0.29 OK 2.70 CI 15 CI 14 339.70 339.72 339.65 339.72 OUTLET 3.68 0.53 OK 5.86 CI 17 CI 16 336. 336.26 336.24 336.26 OUTLET 3.60 0.44 OK 4.47 CI 19 CI 18 334.02 332.85 334.02 OUTLET 2.52 (0.62) OK 5.30 CI 20 CI 21 333.40 333.54 332.29 333.54 OUTLET 2.37 (0.79) OK 3.84 CI 21 CI22 333.02 333.40 332.13 333.40 OUTLET 2.16 (1.15) OK 1.91 CI 40 CI 41 347.38 347.74 350.69 350.69 INLET 3.40 0.26 OK 9.94 CI 41 CI 43 342.85 344.32 347.38 INLET 2.72 (0.63) OK 6.72 CI43 CI44 339.76 340.63 341.06 341.06 INLET 5.29 (0.99) OK 0.42 CI 44 CI 9 I 338.85 339.45 339.76 339.76 INLET 6.59 (0.09) OK 2.53 CI 42 CI 41 347.3$F347.41 346.38 347.41 OUTLET 2.69 (0.46) OK 4.29 SCM 12 ABOVE I- 11 i CI 39 CI 38 358.34 358.35 358.20 358.35 OUTLET 3.61 0.46 OK 5.15 CI38 CI 64 358.11 358.22 358.10 358.22 OUTLET 3.74 0.37 OK 3.56 CI64 CI 65 357.86 358.11 358.00 358.11 OUTLET 4.57 0.09 OK 1.88 CI 65 CI 45 356.90 357.30 357.86 357.86 INLET 4.82 0.13 OK 4.93 CI 45 CI 46 354.89 355.51 356.90 356.90 INLET 3.21 0.05 OK 6.01 1975 Storrn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 4 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED P. g= 226 h= 26 INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREAN INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARGE AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) CI46 CI48 CI46 0.18 0.55 0.39 0.00 0.02 0.37 1.53 5.00 0.67 5.67 7.14 0.47 CI 48 CI 50 CI 48 0.38 0.65 1.00 0.02 0.14 0.86 1.91 5.00 0.91 5.91 7.08 0.51 CI 50 CI 52 CI 50 0.52 0.50 1.18 0.14 0.20 0.98 2.43 5.00 1.13 6.13 7.03 0.51 CI 52 CI 54 CI 52 0.37 0.55 1.00 0.20 0.15 0.85 2.80 5.00 1.28 6.28 7.00 0.51 CI 54 CI 56 CI 54 0.59 0.50 1.32 0.15 0.24 1.08 3.38 5.00 1.44 6.44 6.97 0.51 CI 56 CI 58 CI 56 0.41 0.50 1.07 0.24 0.15 0.92 3.80 5.00 1.55 6.55 6.94 0.51 CI 58 CI 59 CI 58 0.39 0.50 0.94 0.15 0.12 0.82 4.19 5.00 1.70 6.70 6.91 0.51 CI 59 CI 60 CI 59 0.28 0.70 0.88 0.10 0.11 0.78 4.47 5.00 1.75 6.75 6.90 0.52 CI 60 CI 61 CI 60 0.38 0.50 0.75 0.00 0.05 0.70 4.85 5.00 1.85 6.85 6.88 0.52 CI 61 CI 62 CI 61 0.38 0.45 0.75 0.06 0.05 0.69 5.23 5.00 1.91 6.91 6.87 0.51 CI 62 CI 63 CI 62 0.44 0.45 0.80 0.00 0.06 0.74 5.67 5.00 2.14 7.14 6.82 0.51 CI 63 CI 197 CI 63 0.20 0.45 0.35 0.00 0.00 0.35 5.86 5.00 2.34 7.34 6.78 0.51 CI 197 CI 95 CI 197 0.44 0.80 1.44 0.03 0.00 1.44 6.30 5.00 2.41 7.41 6.76 0.53 CI 95 CI 96 CI 95 0.25 0.50 0.49 0.00 0.03 0.46 6.55 5.00 2.52 7.52 6.74 0.53 CI 96 CI 196 CI 96 0.40 0.63 1.00 0.00 0.13 0.88 6.95 5.00 2.58 7.58 6.73 0.53 CI 196 CI 97 CI 196 0.05 0.80 0.28 0.13 0.00 0.28 7.00 5.00 2.69 7.69 6.71 0.53 CI 97 CI 98 CI 97 0.30 0.50 0.61 0.00 0.04 0.57 7.30 5.00 2.87 7.87 6.67 0.53 CI 98 CI 100 CI 98 0.58 0.45 1.08 0.04 0.12 0.96 7.88 5.00 3.03 8.03 6.64 0.53 CI 100 CI 102 CI 100 0.52 0.45 1.06 0.12 0.13 0.94 8.40 5.00 3.17 8.17 6.61 0.52 CI 102 CI 104 CI 102 0.43 0.70 1.33 0.13 0.25 1.08 8.83 5.00 3.41 8.41 6.57 0.53 CI 104 CI 106 CI 104 0.39 0.70 1.33 0.25 0.25 1.08 9.22 5.00 3.54 8.54 6.54 0.54 CI 106 CI 107 CI 106 0.36 0.70 1.27 0.25 0.23 1.04 9.58 5.00 3.66 8.66 6.52 0.54 CI 107 CI 108 CI 107 0.45 0.70 1.64 0.38 0.36 1.29 10.03 5.00 3.71 8.71 6.51 0.55 CI 108 SDMH 193 CI 108 0.38 0.55 0.83 0.00 0.08 0.75 10.41 5.00 3.80 8.80 6.49 0.55 SDMH 193 SDMH 194 SDMH 193 0.00 0.90 0.00 0.00 0.00 0.00 10.41 5.00 3.89 8.89 6.48 0.55 SDMH 194 FES 195 SDMH 194 0.00 0.90 0.00 0.00 0.00 0.00 10.41 5.00 4.09 9.09 6.44 0.55 CI 47 CI 46 CI 47 0.24 0.70 0.00 0.07 0.61 0.24 5.00 0.00 5.00 7.29 0.70 CI 49 CI 48 CI 49 0.54 0.70 0.07 0.30 1.27 0.54 5.00 0.00 5.00 7.29 0.70 CI 51 CI 50 CI 51 0.42 0.70 0.30 0.29 1.19 0.42 5.00 0.00 5.00 7.29 0.70 CI 53 CI 52 CI 53 0.41 0.70 == 0.29 +.28 1.16 0.41 5.00 0.00 5.00 7.29 0.70 CI 55 CI 54 CI 55 0.32 0.70 0.28 0.20 0.98 0.32 5.00 0.00 5.00 7.29 0.70 CI 57 CI 56 CI 57 0.23 0.70 =IIMI 0.20 .10 0.75 0.23 5.00 0.00 5.00 7.29 0.70 CI 99 CI 98 CI 99 0.35 0.45 0.64 0.00 0.05 0.59 0.35 5.00 0.00 5.00 7.29 0.45 CI 101 CI 100 CI 101 0.31 0.75 0.99 0.05 0.11 0.88 0.31 5.00 0.00 5.00 7.29 0.75 CI 103 CI 102 CI 103 0.40 0.70 1.23 0.11 0.11 1.12 0.40 5.00 0.00 5.00 7.29 0.70 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 5 of 32 STORM DRAINAGE/HYDRAULIC GRADE LI DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 9 h= 26 Q Q UPSTREAM SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) CI46 CI48 6.38 1.23 2.39% 15 10.0 8.1 119 0.24 353.10 350.27 357.77 CI 48 CI 50 10.82 2.74 2.40% 18 16.3 9.2 119 0.21 350.02 347.17 354.94 CI 50 CI 52 14.75 2.15 3.23% 24 40.6 12.9 115 0.15 346.67 342.95 352.12 CI 52 CI 54 18.21 2.09 3.41% 24 41.8 13.3 129 0.16 342.95 338.55 348.40 CI 54 CI 56 21.84 1.63 3.24% 24 40.7 13.0 86 0.11 338.55 335.76 344.01 CI 56 CI 58 24.42 1.18 1.81% 36 89.8 12.7 117 0.15 334.76 332.65 341.21 CI 58 CI 59 25.72 0.00 0.83% 36 60.8 8.6 27 0.05 332.65 332.43 339.08 CI 59 CI 60 27.05 0.00 0.74% 36 57.5 8.1 48 0.10 332.43 332.07 339.08 CI 60 CI 61 28.29 0.00 0.75% 36 57.9 8.2 27 = 0.05 332.07 331.87 338.94 CI 61 CI 62 29.44 0.00 0.64% 36 53.2 7.5 106 0.23 331.87 331.20 338.94 CI 62 CI 63 30.67 0.00 0.80% 36 59.7 8.4 100 0.20 331.20 330.40 339.47 CI 63 CI 197 31.15 0.00 0.72% 36 56.8 8.0 35 0.07 330.40 330.15 339.96 CI 197 CI 95 60.65 EyiKYI 0.50% 42 70.8 7.4 48 = 0.11 328.52 328.28 340.13 CI 95 CI 96 61.41 0.00 0.49% 42 70.5 7.3 27 0.06 328.28 328.15 341.46 CI 96 CI 196 63.06 0.00 0.51% 42 71.7 7.4 48 0.11 328.15 327.90 341.46 CI 196 CI 97 63.23 0.00 0.52% 48 103.5 8.2 89 0.18 327.75 327.29 340.01 CI 97 CI 98 64.11 0.00 1.05% 48 147.1 11.7 Fs114 0.16 327.29 326.09 339.21 CI 98 CI 100 66.88 1.16 1.04% 48 146.2 11.6 98 0.14 326.09 325.08 338.18 CI 100 CI 102 70.03 1.71 1.05% 48 147.1 11.7 164 0.23 325.08 323.36 337.30 CI 102 CI 104 73.85 2.04 3.46% 48 267.3 21.2 166 0.13 323.36 317.60 332.09 CI 104 CI 106 78.22 2.71 I 4.23% 48 295.6 23.5 MI80 0.13 317.60 310.00 324.98 CI 106 CI 107 79.75 0.00 0.75% 48 124.8 9.9 27 0.04 310.00 309.80 317.44 CI 107 CI 108 81.77 0.00 0.62% 48 113.0 9.0 48 0.09 309.80 309.50 317.44 CI 108 SDMH 193 84.85 1.82I 0.62% 48 113.0 9.0 48 0.09 309.50 309.20 317.15 SDMH 193 SDMH 194 84.75 0.00 0.64% 48 114.7 9.1 110 0.20 309.20 308.50 318.67 SDMH 194 FES 195 84.54 0.00 1.00% 48 143.3 11.4 92 0.14 303.92 303.00 315.71 CI 47 CI 46 1.23 0.00 0.75% 15 5.6 4.6 Efs 27 0.10 353.30 353.10 CI49 CI48 2.74 0.00 1.13% 15 6.9 5.6 27 0.08 350.48 350.18 ;54.95 CI 51 CI 50 2.15 0.00 1.13% 15 6.9 5.6 27 0.08 347.66 347.36 CI 53 CI 52 2.09 0.00 1.13% 15 6.9 5.6 27 0.08 343.63 348.40 CI 55 CI 54 1.63 0.00 1.13% 15 6.9 5.6 27 OM: 339.24 CI 57 CI 56 1.18 0.00 1.13% 15 6.9 5.6 27 0.08 336.75 336.45 341.22 CI 99 CI 98 1.16 0.00 1.13% 15 6.9 5.6 27 0.08 333.71 333.41 i CI 101 CI 100 1.71 0.00 1.13% 15 6.9 5.6 27 0.08 332.83 332.53 337.30 CI 103 CI 102 2.04 0.00 1.13% 15 6.9 5.6 27 0.08 327.62 327.32 •32.09 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 6 of 32 BEND LOSS KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 CI COVER BOX COVER BELOW ;IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS I (8") (CFS) K CI46 CI48 4.67 3.42 2.30 1.23 0.10 CI 48 CI 50 4.92 3.42 2.30 3.97 0.10 CI 50 CI 52 5.45 3.45 2.33 6.12 0.00 CI 52 CI 54 5.45 3.45 2.33 8.21 0.00 CI 54 CI 56 5.46 3.46 2.33 9.84 0.00 CI 56 CI 58 6.45 3.45 2.32 11.03 0.70 CI 58 CI 59 6.43 3.43 2.31 11.03 0.40 CI 59 CI 60 6.65 3.65 2.52 11.03 0.40 CI 60 CI 61 6.87 3.87 2.75 11.03 0.70 CI 61 CI 62 7.07 4.07 2.94 11.03 0.00 CI 62 CI 63 8.27 5.27 4.15 11.03 0.00 CI 63 CI 197 9.56 6.56 5.44 11.03 0.40 CI 197 CI 95 11.61 8.11 6.99 38.20 0.40 CI 95 CI 96 13.18 9.68 8.56 38.20 0.40 CI 96 CI 196 13.31 9.81 8.69 38.20 0.40 CI 196 CI 97 12.26 8.26 7.13 38.20 0.00 CI 97 CI 98 11.92 7.92 6.79 38.20 0.00 CI 98 CI 100 12.09 8.09 6.97 39.36 0.00 CI 100 CI 102 12.22 8.22 7.10 41.06 0.00 CI 102 CI 104 8.73 4.73 3.60 43.11 0.00 CI 104 CI 106 7.38 3.38 2.26 45.82 0.70 CI 106 CI 107 7.44 3.44 2.32 45.82 0.40 CI 107 CI 108 7.64 3.64 2.51 45.82 0.60 CI 108 SDMH 193 7.65 3.65 2.52 47.65 0.28 SDMH 193 SDMH 194 9.47 5.47 4.35 47.65 0.28 SDMH 194 FES 195 11.79 7.79 6.66 47.65 0.00 CI 47 CI 46 4.47 3.22 2.09 0.00 0.70 CI 49 CI 48 4.47 3.22 2.09 0.00 0.70 CI 51 CI 50 4.47 3.22 2.09 0.00 0.70 CI 53 CI 52 4.47 3.22 2.09 0.00 0.70 CI 55 CI 54 4.47 3.22 2.09 0.00 0.70 CI 57 CI 56 4.47 3.22 2.10 0.00 0.70 CI 99 CI 98 4.47 3.22 2.10 0.00 0.70 CI 101 CI 100 4.47 3.22 2.10 0.00 0.70 CI 103 CI 102 4.47 3.22 2.09 0.00 0.70 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 7 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 0 CROW COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) CONTROL I (Fr) DISCHARGE Sediment Control Planning and Design Manual) I 4.MANNINGS"n"FACTOR=0.013 CI 46 CI 48 352.39 353.83 354.89 354.89 INLET 2.88 (0.54) OK 3.60 CI 48 CI 50 348.62 350.28 352.39 352.39 INLET 2.55 (0.87) OK 5.47 CI 50 CI 52 345.40 346.09 348.62 348.62 INLET 3.50 0.05 OK 25.90 CI 52 CI 54 341.63 342.77 345.40 345.40 INLET 3.00 (0.45) OK 23.57 CI 54 CI 56 337.36 338.60 341.63 341.63 INLET 2.38 (1.08) OK 18.91 CI 56 CI 58 335.29 335.68 336.78 36.78 INLET 4.43 0.99 OK 65.40 CI 58 CI 59 335.04 335.29 334.72 335.29 OUTLET 3.79 0.36 OK 35.05 CI 59 CI 60 334.74 335.04 334.56 335.04 OUTLET 4.04 0.39 OK 30.45 CI 60 CI 61 334.37 334.74 334.26 334.74 OUTLET 4.20 0.33 OK 29.65 CI 61 CI 62 334.01 334.37 334.12 334.37 OUTLET 4.57 0.50 OK 23.71 CI 62 CI 63 333.63 334.01 333.51 334.01 OUTLET 5.46 0.19 OK 28.99 CI 63 CI 197 333.26 333.63 332.74 333.63 OUTLET 6.33 (0.23) OK 25.63 CI 197 CI 95 332.47 333.26 331.98 OUTLET 6.87 (1.24) OK 10.17 CI 95 CI 96 331.75 332.47 331.79 332.47 OUTLET 8.99 (0.69) OK 9.06 CI 96 CI 196 330.89 331.74 331.75 331.75 INLET 9.71 (0.10) OK 8.64 CI 196 CI 97 330.49 330.89 330.84 330.89 OUTLET 9.12 0.86 OK 40.29 CI 97 CI 98 329.31 329.78 330.41 330.41 INLET 8.80 0.88 OK 82.96 CI 98 CI 100 328.42 328.89 329.31 329.31 INLET 8.87 0.78 OK 79.32 CI 100 CI 102 326.85 327.52 328.42 328.42 INLET 8.88 0.66 OK 77.03 CI 102 CI 104 321.27 322.02 326.85 326.85 INLET 5.24 0.51 OK 193.43 CI 104 CI 106 316.44 317.74 321.27 :21.27 INLET 3.71 0.33 OK 217.35 CI 106 CI 107 315.74 316.44 313.74 316.44 OUTLET 1.00 (2.44) OK 45.03 CI 107 CI 108 314.81 315.74 313.63 315.74 OUTLET 1.70 (1.94) OK 31.28 CI 108 SDMH 193 314.03 314.81 313.47 1.4.81 OUTLET 2.34 (1.31) OK 28.20 SDMH 193 SDMH 194 313.04 314.03 313.16 314.03 OUTLET 4.64 (0.83) OK 29.98 SDMH 194 FES 195 312.31 313.04 307.87 313.04 OUTLET 2.67 (5.12) OK 58.76 10yr Pond 312.31 CI 47 CI 46 354.89 354.92 353.97 354.92 OUTLET 2.85 (0.37) OK 4.38 CI49 CI48 352.39 352.53 351.32 352.53 OUTLET 2.42 (0.80) OK 4.13 CI 51 CI 50 348.62 348.71 348.42 348.71 OUTLET 3.42 0.20 OK 4.72 CI 53 CI 52 345.40 345.49 344.68 345.49 OUTLET 2.91 (0.31) OK 4.78 CI 55 CI 54 341.63 341.69 340.24 341.69 OUTLET 2.32 (0.90) OK 5.24 CI 57 CI 56 337. 337.48 337.42 337.48 OUTLET 3.74 0.52 OK 5.69 CI 99 CI 98 334.41 334.44 334.37 334.44 OUTLET 3.74 0.52 OK 5.71 CI 101 CI 100 333. 333.59 333.54 333.59 OUTLET 3.71 0.49 OK 5.17 CI 103 CI 102 328.32 328.40 328.36 328.40 OUTLET 3.69 0.47 OK 4.83 1975 Storm.xlsx 10-YEAR Date:3/4/2024 Time:11.51 AM Page 8 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED P. g= 226 h= 26 _ INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREAN INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARGE AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) CI 105 CI 104 CI 105 0.53 0.70 1.60 0.11 0.38 1.22 0.53 5.00 0.00 5.00 7.29 0.70 CI 109 CI 108 CI 109 0.42 0.60 1.00 0.00 0.87 0.42 5.00 0.00 5.00 7.29 0.60 CI 23 CI 24 CI 23 0.52 0.60 1.34 0.08 0.19 1.15 0.52 5.00 0.00 5.00 7.29 0.60 CI 24 CI 26 CI 24 0.64 0.55 1.60 0.19 0.23 1.36 1.16 5.00 0.33 5.33 7.21 0.57 CI 26 CI 32 CI 26 0.65 0.50 1.53 0.23 0.31 1.23 1.81 5.00 0.63 5.63 7.14 0.55 CI 32 CI 33 CI 32 0.37 0.60 1.20 0.31 0.20 1.00 2.18 5.00 0.81 5.81 7.10 0.56 CI 33 CI 34 CI 33 0.46 0.50 1.21 0.29 0.00 1.21 2.64 5.00 0.84 5.84 7.10 0.55 CI 34 CI 30 CI 34 0.30 0.55 0.81 0.14 0.09 0.72 2.95 5.00 0.86 5.86 7.09 0.55 CI 30 CI 28 CI 30 0.37 0.60 1.09 0.21 0.14 0.95 3.31 5.00 1.01 6.01 7.06 0.55 CI 28 CI 220 CI 28 0.56 0.55 1.22 0.00 0.21 1.01 3.87 5.00 1.16 6.16 7.03 0.55 CI 220 CI 221 CI 220 0.02 0.65 0.05 0.00 0.00 0.05 3.89 5.00 1.62 6.62 6.93 0.55 CI 221 CI 197 CI 221 0.02 0.65 0.06 0.00 0.00 0.06 3.91 5.00 1.73 6.73 6.90 0.55 CI 25 CI 24 CI 25 0.69 0.70 1.92 0.00 0.38 1.54 0.69 5.00 0.00 5.00 7.29 0.70 CI 27 CI 26 CI 27 0.45 0.70 1.63 0.38 0.31 1.32 0.45 5.00 0.00 5.00 7.29 0.70 CI 37 CI 36 CI 37 0.23 0.75 1.01 0.31 0.15 0.86 0.23 5.00 0.00 5.00 7.29 0.75 CI 36 CI 35 CI 36 0.13 0.55 0.51 0.22 0.00 0.51 0.36 5.00 0.02 5.02 7.28 0.68 CI 35 CI 34 CI 35 0.23 0.70 0.72 0.08 0.08 0.65 0.59 5.00 0.05 5.05 7.28 0.69 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 9 of 32 STORM DRAINAGE/HYDRAULIC GRADE LIII DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 9 h= 26 Q Q UPSTREAM SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) CI 105 CI 104 2.71 0.00 1.13% 15 6.9 5.6 27 0.08 320.52 320.22 • CI 109 CI 108 0.00 1.13% 15 6.9 5.6 27 0.08 312.68 312.38 317.15 CI 23 CI 24 2.28 0.00 1.81% 15 8.7 7.1 142 0.33 338.19 335.62 342.66 CI 24 CI 26 8.29 - 2.08% 15 9.3 7.6 136 0.30 335.62 332.80 340.09 CI 26 CI 32 12.85 0.53% 24 16.4 5.2 57 0.18 332.42 332.12 336.55 CI 32 CI 33 14.39 0.00 0.63% 24 17.9 5.7 8 0.02 331.78 331.73 335.90 CI 33 CI 34 16.01 0.00 0.63% 30 32.4 6.6 8 0.02 331.73 331.68 335.89 CI 34 CI 30 20.16 ■ 0.53% 36 48.6 6.9 62 0.15 330.58 330.25 335.91 CI 30 CI 28 22.69 0.54% 36 48.9 6.9 65 0.16 330.25 329.90 336.57 CI 28 CI 220 27.23 0.50% 36 47.1 6.7 183 0.46 329.90 328.99 337.49 CI 220 CI 221 27.12 0.00 0.50% 36 47.1 6.6 44 0.11 328.99 328.77 340.09 CI 221 CI 197 I MEI 0.00 0.94% 36 64.8 9.2 27 0.05 328.77 328.52 / 340.31 CI 25 CI 24 0.00 0.92% 15 6.2 5.1 Ffs 33 0.11 335.62 ® :,0.09 CI 27 CI 26 i 2.28 0.00 0.49% 15 4.5 3.7 33 0.15 332.66 332.50 336.55 CI37 CI 36 1.27 0.00 1.25% 15 7.2 5.9 8 0.02 !.!I!. . 335.23 335.89 CI35 CI 34 2.97 0.00 0.89% 15 6.1 5.0 3 0.11 331.23 330.94 335.91 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 10 of 32 BEND LOS; KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 CI COVER BOX COVER BELOW IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS I (8") (CFS) K CI 105 CI 104 4.47 3.22 2.10 0.00 0.70 CI 109 CI 108 4.47 3.22 2.09 0.00 0.55 CI 23 CI 24 4.47 3.22 2.10 0.00 0.10 CI 24 CI 26 4.47 3.22 2.09 3.50 0.00 CI 26 CI 32 4.13 2.13 1.01 5.78 0.00 CI 32 CI 33 4.12 2.12 1.00 5.78 0.00 CI 33 CI 34 4.16 1.66 0.53 5.78 0.00 CI 34 CI 30 5.33 2.33 1.21 8.74 0.00 CI 30 CI 28 6.32 3.32 2.19 9.78 0.00 CI 28 CI 220 7.59 4.59 3.46 12.24 0.70 CI 220 CI 221 11.10 8.10 6.97 12.24 0.90 CI 221 CI 197 11.54 8.54 7.42 12.24 0.90 CI 25 CI 24 4.47 3.22 2.09 0.00 0.70 CI 27 CI 26 3.89 2.64 1.51 0.00 0.70 CI 37 CI 36 4.47 3.22 2.09 0.00 0.00 CI 36 CI 35 4.56 3.31 2.19 0.00 0.70 CI 35 CI 34 4.68 3.43 2.31 0.00 0.70 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 11 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 0 CROW COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) CONTROL (Fr) DISCHARGE Sediment Control Planning and Design Manual) I 4.MANNINGS"n"FACTOR=0.013 CI 105 CI 104 321.27 ' 321.42 321.36 321.42 OUTLET 3.57 0.35 OK 4.16 CI 109 CI 108 IIMMI I 314.87 313.40 314.87 OUTLET 2.28 (0.94) OK 5.05 CI 23 CI 24 338.27 338.48 338.96 338.96 INLET 3.70 0.48 OK 6.42 CI 24 CI 26 335.62 338.27 338.22 OUTLET 1.82 (1.40) OK 1.02 CI 26 CI 32 335.28 335.62 334.14 335.62 OUTLET 0.93 (1.20) OK 3.57 CI 32 CI 33 335.06 335.28 333.68 335.28 OUTLET 0.62 (1.50) OK 3.55 CI 33 CI 34 334.95 335.06 333.44 335.06 OUTLET 0.83 (0.83) OK 16.41 CI 34 CI 30 334.82 334.95 332.43 OUTLET 0.96 (1.37) OK 28.48 CI 30 CI 28 334.65 334.82 332.19 OUTLET 1.75 (1.57) OK 26.26 CI 28 CI 220 334.05 334.65 332.04 OUTLET 2.84 (1.75) OK 19.87 CI 220 CI 221 333.64 334.05 331.12 334.05 OUTLET 6.04 (2.06) OK 19.94 CI 221 CI 197 I 333.26 I 333.64 330.91 333.64 OUTLET 6.67 (1.87) OK 37.61 CI 25 CI 24 338.52 336.60 338.52 OUTLET 1.57 (1.65) OK 2.71 CI 27 CI 26 335.62 J 335.73 333.43 335.73 OUTLET 0.82 (1.82) OK 2.26 CI 37 CI 36 335.18 335.19 332.10 335.19 OUTLET 0.71 (2.51) OK 5.95 CI 36 CI 35 335.13 335.18 332.05 335.18 OUTLET 0.71 (2.60) OK 5.43 CI 35 CI 34 335.13 332.11 335.13 OUTLET 0.78 (2.65) OK 3.13 1975 Storrn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 12 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED P. g= 226 h= 26 INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREAN INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARGE AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) CI 31 CI 30 CI 31 0.20 0.70 0.85 0.29 .08 0.78 0.20 5.00 0.00 5.00 7.29 0.70 CI 29 CI 28 CI 29 0.48 0.70 0.00 0.29 1.06 0.48 5.00 0.00 5.00 7.29 0.70 SCM 13 ABOVE CI 110 CI 112 CI 110 0.18 0.65 0.69 0.23 0.02 0.67 0.18 5.00 0.00 5.00 7.29 0.65 CI 112 CI 113 CI 112 0.09 0.60 0.25 0.02 0.10 0.15 0.27 5.00 0.14 5.14 7.26 0.63 CI 113 CI 115 CI 113 0.52 0.45 1.03 0.10 0.13 0.90 0.79 5.00 0.42 5.42 7.19 0.51 CI 115 CI 116 CI 115 0.51 0.50 1.27 0.26 0.23 1.04 1.30 5.00 0.54 5.54 7.17 0.51 CI 116 CI 117 CI 116 0.61 0.40 1.07 0.10 0.17 0.90 1.90 5.00 0.59 5.59 7.15 0.47 CI 117 CI 128 CI 117 0.18 0.70 1.02 0.51 0.00 1.02 2.09 5.00 0.68 5.68 7.13 0.49 CI 128 CI 139 CI 128 0.35 0.45 0.75 0.12 0.13 0.63 2.44 5.00 0.70 5.70 7.13 0.49 CI 139 CI 137 CI 139 0.28 0.45 0.89 0.39 0.12 0.77 2.72 5.00 0.95 5.95 7.07 0.48 CI 137 CI 136 CI 137 0.94 0.40 1.71 0.20 0.39 1.32 3.66 5.00 1.29 6.29 7.00 0.46 CI 136 SDMH 199 CI 136 0.61 0.65 1.69 0.11 0.38 1.31 4.26 5.00 1.35 6.35 6.99 0.49 SDMH 199 FES 200 SDMH 199 0.00 0.90 0.00 0.00 0.00 0.00 4.26 5.00 1.67 6.67 6.92 0.49 CI111 CI 112 CI111 0.64 0.70 1.92 0.13 0.42 1.51 0.64 5.00 0.00 5.00 7.29 0.70 CI 114 CI 113 CI 114 0.51 0.70 1.83 0.42 0.42 1.41 0.51 5.00 0.00 5.00 7.29 0.70 CI 129 CI 118 CI 129 0.32 0.70 1.32 0.42 0.21 1.12 0.32 5.00 0.00 5.00 7.29 0.70 CI 118 CI 127 CI 118 0.11 0.70 0.84 0.54 0.00 0.84 0.43 5.00 0.02 5.02 7.28 0.70 CI 127 CI 128 CI 127 0.45 0.60 1.69 0.60 0.34 1.36 0.88 5.00 0.05 5.05 7.28 0.65 CI 138 CI 139 CI 138 0.72 0.65 2.26 0.38 0.60 1.65 0.72 5.00 0.00 5.00 7.29 0.65 CI 134 CI 135 CI 134 0.39 0.55 0.85 0.00 0.11 0.74 0.39 5.00 0.00 5.00 7.29 0.55 CI 135 CI 137 CI 135 0.59 0.50 1.17 0.00 0.20 0.97 0.98 5.00 0.10 5.10 7.27 0.52 CI 119 CI 120 CI 119 0.46 0.65 1.21 0.00 0.21 0.99 0.46 5.00 0.00 5.00 7.29 0.65 CI 120 CI 122 CI 120 0.23 0.55 0.50 0.00 0.03 0.46 0.69 5.00 0.10 5.10 7.27 0.62 CI 122 CI 124 CI 122 0.35 0.60 0.86 0.03 0.11 0.75 1.04 5.00 0.28 5.28 7.23 0.61 CI 124 CI 126 CI 124 0.27 0.70 0.88 0.11 0.12 0.76 1.31 5.00 0.34 5.34 7.21 0.63 CI 126 CI 116 CI 126 0.24 0.70 0.79 0.12 0.10 0.69 1.55 5.00 0.44 5.44 7.19 0.64 CI 121 CI 122 CI 121 0.75 0.50 1.71 0.21 0.39 1.31 0.75 5.00 0.00 5.00 7.29 0.50 CI 123 CI 124 CI 123 0.52 0.50 0.39 0.29 1.14 0.52 5.00 0.00 5.00 7.29 0.50 CI 125 CI 126 CI 125 0.53 0.50 0.29 0.26 1.08 0.53 5.00 0.00 5.00 7.29 0.50 1975 Siomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 13 of 32 STORM DRAINAGE/HYDRAULIC GRADE LIII DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 9 h= 26 Q Q UPSTREAtu SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) CI 31 CI 30 11IM 0.00 0.92% 15 6.2 5.1 33 0.11 332.09 331.79 336.57 CI 29 CI 28 0.00 0.92% 15 6.2 5.1 33 0.11 333.00 332.70 _ SCM 13 ABOVE - CI 110 CI 112 0.84 0.00 3.45% 15 12.0 9.8 82 0.14 309.79 306.96 314.62 CI 112 CI 113 4.52 3.46% 15 12.0 9.8 166 0.28 306.96 301.21 311.63 CI 113 CI 115 8.76 2.58 0.95% 24 22.0 7.0 48 0.12 300.46 300.00 305.63 CI 115 CI 116 10.56 0.00 1.40% 24 26.7 8.5 0.05 300.00 299.63 306.14 CI 116 CI 117 25.97 1.12% 30 43.4 8.8 47 0.09 299.13 298.60 306.14 CI 117 CI 128 26.87 _0.00 0.63% 30 32.4 6.6 8 0.02 298.60 298.55 304.26 CI 128 CI 139 32.15 4.16 0.63% 36 53.0 7.5 111 0.25 298.10 297.40 304.28 CI 139 CI 137 36.40 3.42 0.60% 36 51.5 7.3 151 I 0.34 297.40 296.50 306.48 CI 137 CI 136 42.61 3.68 0.75% 36 57.9 8.2 27 ' 0.05 296.50 296.30 314.78 CI 136 SDMH 199 45.36 0.00 0.79% 36 59.3 8.4 0.33 296.30 295.00 314.78 SDMH 199 FES 200 45.21 0.00 1.39% 42 118.8 12.3 179 0.24 294.50 292.00 311.32 CI111 CI 112 0.00 6.94% 15 17.0 13.9 271. 0.03 309.00 307.16 CI 114 CI 113 2.58 0.00 0.75% 15 5.6 4.6 211M 0.10 301.16 300.96 305.63 CI 129 CI 118 1.65 0.00 1.25% 15 7.2 5.9 0.02 299.79 299.69 304.26 CI 118 CI 127 2.18 0.00 1.25% 15 7.2 5.9 0.02 299.69 299.59 304.26 CI 127 CI 128 4.16 0.00 1.02% 18 10.6 6.0 0.07 299.34 299.07 304.28 CI 138 CI 139 3.42 0.00 0.75% 15 5.6 4.6 27 0.10 302.01 301.81 •06.48 CI 134 CI 135 1.56 0.00 0.75% 15 5.6 4.6 Fs 27 0.10 319.96 319.76 B24.43 CI 135 CI 137 3.68 I 0.00 4.98% 15 14.4 11.7 196 0.28 319.76 310.00 24.43 CI 119 CI 120 2.20 0.00 0.75% 15 5.6 4.6 27 0.10 332.84 332.64 337.31 CI 120 CI 122 3.09 0.00 8.37% 15 18.7 15.2 163 0.18 332.64 319.00 337.31 CI 122 CI 124 7.30 11.48% 18 35.6 20.1 3 0.07 318.75 309.26 323.53 CI 124 CI 126 10.57 4.22% 24 46.4 14.8 87 0.10 308.76 305.10 316.34 CI 126 CI 116 5.28% 24 52.0 16.5 81 0.08 305.10 300.82 310.24 CI 121 CI 122 0.00 0.75% 15 5.6 4.6 2 0.10 319.06 318.86 323.53 CI 123 CI 124 0.00 0.75% 15 5.6 4.6 2 0.10 309.03 308.83 CI 125 CI 126 0.00 0.75% 15 5.6 4.6 0.10 305.77 305.57 10.24 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 14 of 32 BEND LOSS KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 CI COVER BOX COVER BELOW ;IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS I (8") (CFS) K CI 31 CI 30 4.48 3.23 2.11 0.00 0.70 CI 29 CI 28 4.49 3.24 2.12 0.00 0.70 SCM 13 ABOV- CI 110 CI 112 4.83 3.58 2.45 0.00 0.70 CI 112 CI 113 4.67 3.42 2.30 3.27 0.40 CI 113 CI 115 5.17 3.17 2.05 5.84 0.40 CI 115 CI 116 6.14 4.14 3.01 5.84 0.40 CI 116 CI 117 7.01 4.51 3.38 19.53 0.40 CI 117 CI 128 5.66 3.16 2.03 19.53 0.00 CI 128 CI 139 6.18 3.18 2.05 23.69 0.28 CI 139 CI 137 9.08 6.08 4.96 27.11 0.55 CI 137 CI 136 18.28 15.28 14.16 30.80 0.00 CI 136 SDMH 199 18.48 15.48 14.36 30.80 0.65 SDMH 199 FES 200 16.82 13.32 12.20 30.80 0.00 CI111 CI 112 5.62 4.37 3.25 0.00 0.00 CI 114 CI 113 4.47 3.22 2.09 0.00 0.60 CI 129 CI 118 4.47 3.22 2.10 0.00 0.00 CI 118 CI 127 4.57 3.32 2.19 0.00 0.70 CI 127 CI 128 4.94 3.44 2.32 0.00 0.70 CI 138 CI 139 4.47 3.22 2.10 0.00 0.60 CI 134 CI 135 4.47 3.22 2.10 0.00 0.70 CI 135 CI 137 4.67 3.42 2.30 0.00 0.70 CI 119 CI 120 4.47 3.22 2.10 0.00 0.70 CI 120 CI 122 4.67 3.42 2.30 0.00 0.00 CI 122 CI 124 4.78 3.28 2.15 2.72 0.10 CI 124 CI 126 7.58 5.58 4.45 4.61 0.00 CI 126 CI 116 5.14 3.14 2.01 6.54 0.55 CI 121 CI 122 4.47 3.22 2.09 0.00 0.70 CI 123 CI 124 7.31 6.06 4.94 0.00 0.70 CI 125 CI 126 4.47 3.72 2.10 0.00 0.70 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 15 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 0 CROW COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) CONTROL I (Fr) DISCHARGE Sediment Control Planning and Design Manual) 4.MANNINGS"n"FACTOR=0.013 CI 31 CI 30 334.84 332.75 334.84 OUTLET 1.73 (1.50) OK 5.17 CI 29 CI 28 334.77 333.80 334.77 OUTLET 2.72 (0.52) OK 3.75 SCM 13 ABOVEIMM. I. CI 110 CI 112 308.17 308.19 310.44 310.44 INLET 4.18 0.60 OK 11.16 CI 112 CI 113 304.32 305.33 308.17 INLET 3.46 0.04 OK 7.51 CI 113 CI 115 304.13 304.32 301.80 304.32 OUTLET 1.31 (1.86) OK 13.29 CI 115 CI 116 303.90 304.13 301.49 304.13 OUTLET 2.01 (2.13) OK 16.17 CI 116 CI 117 303.28 303.90 301.59 303.90 OUTLET 2.24 (2.27) OK 17.40 CI 117 CI 128 302.97 303.28 301.14 303.28 OUTLET 0.98 (2.18) OK 5.56 CI 128 CI 139 302.43 302.97 300.49 302.97 OUTLET 1.31 (1.87) OK 20.82 CI 139 CI 137 301.52 302.43 300.04 302.43 OUTLET 4.05 (2.03) OK 15.15 CI 137 CI 136 301.08 301.52 299.57 301.52 OUTLET 13.26 (2.02) OK 15.33 CI 136 SDMH 199 299.54 301.08 299.58 301.08 OUTLET 13.70 (1.78) OK 13.98 SDMH 199 FES 200 298.98 299.54 297.20 299.54 OUTLET 11.78 (1.54) OK 73.57 10yr Pond 298.98 CI111 CI 112 308.30 309.93 309.93 INLET 4.69 0.32 OK 13.76 CI 114 CI 113 304.32 304.44 301.98 304.44 OUTLET 1.19 (2.03) OK 3.02 CI 129 CI 118 303.19 303.21 300.49 303.21 OUTLET 1.05 (2.17) OK 5.57 CI 118 CI 127 303.12 303.19 300.45 303.19 OUTLET 1.07 (2.25) OK 5.04 CI 127 CI 128 302.97 303.12 300.33 303.12 OUTLET 1.16 (2.28) OK 6.44 CI 138 CI 139 302. 303.03 302.97 303.03 OUTLET 3.45 0.23 OK 2.17 CI 134 CI 135 320.77 320.82 320.65 320.82 OUTLET 3.61 0.39 OK 4.04 CI 135 CI 137 311.00 311.82 320.77 320.77 INLET 3.66 0.24 OK 10.73 CI 119 CI 120 333.64 333.74 333.60 333.74 OUTLET 3.57 0.35 OK 3.40 CI 120 CI 122 320.24 320.67 333.54 333.54 INLET 3.77 0.35 OK 15.60 CI 122 CI 124 310.46 311.04 320.24 INLET 3.29 0.01 OK 28.30 CI 124 CI 126 306.92 307.21 310.25 310.25 INLET 6.09 0.51 OK 35.88 CI 126 CI 116 304.53 306.92 INLET 3.32 0.18 OK 38.32 CI 121 CI 122 320.38 319.90 320.38 OUTLET 3.15 (0.07) OK 2.88 CI 123 CI 124 310.32 309.76 310.32 OUTLET 6.02 (0.04) OK 3.72 CI 125 CI 126 306.99 306.50 306.99 OUTLET 3.25 0.03 OK 3.67 1975 Storrn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 16 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED P. g= 226 h= 26 INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREAN INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARGE AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) CI 130 CI 131 CI 130 0.11 0.80 0.36 0.00 0.02 0.34 0.11 5.00 0.00 5.00 7.29 0.80 CI 131 CI 133 CI 131 0.48 0.55 1.06 0.00 0.17 0.89 0.59 5.00 0.10 5.10 7.27 0.60 CI 133 CI 141 CI 133 0.29 0.55 0.66 0.02 0.10 0.56 0.89 5.00 0.20 5.20 7.24 0.58 CI 141 CI 142 CI 141 0.59 0.65 1.62 0.10 0.36 1.27 1.47 5.00 0.45 5.45 7.19 0.61 CI 142 CI 143 CI 142 0.31 0.65 1.17 0.36 0.20 0.97 1.79 5.00 0.58 5.58 7.16 0.62 CI 143 FES 201 CI 143 0.30 0.50 0.60 0.00 l 07 0.53 2.09 5.00 0.62 5.62 7.15 0.60 CI 132 CI 133 CI 132 0.04 0.80 0.02 .... 0.15 0.04 5.00 0.00 5.00 7.29 0.80 CI 140 CI 141 CI 140 0.16 0.50 0.00 0.00 0.33 0.16 5.00 0.00 5.00 7.29 0.50 CI 145 CI 144 CI 145 0.53 0.50 1.26 0.20 0.23 1.03 0.53 5.00 0.00 5.00 7.29 0.50 CI 144 CI 146 CI 144 0.29 0.45 0.79 0.27 0.00 0.79 0.82 5.00 0.01 5.01 7.29 0.48 CI 146 CI 143 CI 146 0.21 0.50 0.49 0.07 0.03 0.46 1.03 5.00 0.08 5.08 7.27 0.49 SCM 15 ABOVE CI 67 CI 66 CI 67 0.27 0.65 0.69 0.00 07 0.62 0.27 5.00 0.00 5.00 7.29 0.65 CI 66 CI 68 CI 66 0.74 0.55 1.62 0.00 0.35 1.27 1.00 5.00 0.10 5.10 7.27 0.58 CI 68 CI 70 CI 68 0.63 0.55 1.73 0.35 0.40 1.33 1.63 5.00 0.28 5.28 7.23 0.57 CI 70 CI 72 CI 70 0.65 0.55 1.83 0.40 0.43 1.39 2.28 5.00 0.45 5.45 7.19 0.56 CI 72 CI 76 CI 72 0.06 0.90 0.66 0.43 0.07 0.60 2.34 5.00 0.54 5.54 7.17 0.57 CI 76 SDMH 77 CI 76 0.12 0.85 0.47 0.07 0.13 0.34 2.46 5.00 0.58 5.58 7.16 0.58 SDMH 77 CI 78 SDMH 77 0.00 0.90 0.00 0.00 0.00 0.00 2.46 5.00 0.69 5.69 7.13 0.58 CI 78 CI 80 CI 78 0.82 0.50 1.78 0.13 0.40 1.38 3.28 5.00 0.71 5.71 7.13 0.56 CI 80 CI 82 CI 80 0.56 0.55 1.63 0.40 0.35 1.29 3.85 5.00 0.85 5.85 7.10 0.56 CI 82 CI 84 CI 82 0.39 0.55 1.20 0.35 0.21 1.00 4.24 5.00 0.98 5.98 7.07 0.56 CI 84 CI 85 CI 84 0.51 0.65 1.53 0.21 0.31 1.22 4.75 5.00 1.17 6.17 7.02 0.57 CI 85 FES 198 CI 85 0.10 0.90 0.51 0.16 0.04 0.47 4.84 5.00 1.22 6.22 7.01 0.58 CI 69 CI 68 CI 69 0.39 0.70 0.07 0.20 0.97 0.39 5.00 0.00 5.00 7.29 0.70 CI 71 CI 70 CI 71 0.38 0.70 1.25 0.20 .23 1.02 0.38 5.00 0.00 5.00 7.29 0.70 CI 75 CI 74 CI 75 0.58 0.70 1.69 0.05 0.37 1.32 0.58 5.00 0.00 5.00 7.29 0.70 CI 74 CI 73 CI 74 0.70 0.55 1.81 0.28 0.37 1.44 1.28 5.00 0.10 5.10 7.27 0.62 CI 73 CI 72 CI 73 0.18 0.70 0.72 0.23 0.08 0.64 1.46 5.00 0.25 5.25 7.23 0.63 CI 79 CI 78 CI 79 0.43 0.60 1.40 0.37 0.27 1.13 0.43 5.00 0.00 5.00 7.29 0.60 CI 81 CI 80 CI 81 0.66 0.55 1.72 0.27 0.38 1.34 0.66 5.00 0.00 5.00 7.29 0.55 CI 86 CI 87 CI 86 0.28 0.55 0.61 0.00 5 0.56 0.28 5.00 0.00 5.00 7.29 0.55 CI 87 CI 89 CI 87 0.39 0.70 1.13 0.05 14 1.00 0.67 5.00 0.39 5.39 7.20 0.64 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11.51 AM Page 17 of 32 STORM DRAINAGE/HYDRAULIC GRADE LIII DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 f h= 26 Q Q UPSTREAM SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) CI 130 CI 131 0.65 0.00 0.75% 15 5.6 4.6 27 0.10 336.76 336.56 341.23 CI 131 CI 133 2.58 0.00 4.77% 15 14.1 11.5 71 0.10 336.56 333.20 341.23 CI 133 CI 141 3.98 0.24 7.47% 15 17.7 14.4 214 0.25 333.20 317.25 337.87 CI 141 CI 142 7.29 0.59 4.42% 18 22.1 12.5 102 0.14 317.00 312.48 321.87 CI 142 CI 143 8.71 0.00 6.95% 24 59.7 19.0 47 0.04 311.98 308.70 317.35 CI 143 FES 201 13.41 , 3.64 5.13% 24 51.2 16.3 326 0.33 308.70 292.00 316.44 CI 132 CI 133 0.24 0.00 0.75% 15 5.6 4.6 27 0.10 333.40 333.20 337.87 CI 140 CI 141 0. 0.00 0.75% 15 5.6 4.6 27 0.10 317.40 317.20 321.87 CI 145 CI 144 1.92 0.00 3.25% 15 11.6 9.5 8 0.01 309.44 309.18 313.91 CI 144 CI 146 2.87 0.00 0.69% 15 5.4 4.4 16 0.06 309.18 309.07 13.65 CI 146 CI 143 3.64 0.00 0.70% 15 5.4 4.4 53 0.20 309.07 308.70 14.01 CI 67 CI 66 1.26 0.00 0.75% 15 5.6 4.6 27 0.10 354.25 354.05 358.72 CI 66 CI 68 4.19 0.00 7.19% 15 17.3 14.1 152 0.18 354.05 343.11 358.72 CI 68 CI 70 8.67 2.00 6.94% 18 27.7 15.6 159 0.17 343.00 331.95 348.23 CI 70 CI 72 13.11 1.92 4.78% 24 49.5 15.7 87 0.09 331.45 327.30 336.69 CI 72 CI 76 20.11 6.62 5.14% 30 93.0 18.9 45 0.04 326.30 324.00 332.56 CI 76 SDMH 77 20.82 0.00 3.36% 30 75.2 15.3 101 0.11 324.00 320.60 329.74 SDMH 77 CI 78 20.79 0.00 3.87% 30 80.7 16.4 21 0.02 320.60 319.80 326.36 CI 78 CI 80 25.60 3.06% 30 71.8 14.6 120 0.14 319.80 316.11 325.61 CI 80 CI 82 30.37 2.10% 30 59.5 12.1 95 0.13 307.69 305.69 321.25 CI 82 CI 84 47.10 I 2.50% 36 105.4 14.9 176 0.20 305.19 300.80 317.73 CI 84 CI 85 57.54 8.21 0.98% 42 99.7 10.3 27 0.04 300.36 300.10 311.45 CI 85 FES 198 58.14 0.00 2.00% 42 142.2 14.8 55 0.06 300.10 299.00 311.45 CI 69 CI 68 2.00 0.00 0.75% 15 5.6 4.6 27 0.10 343.76 343.56 CI 71 CI 70 1.92 0.00 0.75% 15 5.6 4.6 27 0.10 332.22 332.02 336.69 CI 75 CI 74 2.98 0.00 0.75% 15 5.6 4.6 27 0.10 328.25 328.05 332.72 CI 74 CI 73 5.75 0.00 0.67% 18 8.6 4.9 45 0.15 327.80 327.50 332.72 CI 73 CI 72 0.00 0.75% 18 9.1 5.2 27 0.09 327.50 327.30 332.56 CI 79 CI 78 0.00 0.75% 15 5.6 4.6 2 0.10 321.14 320.94 325.61 CI 81 CI 80 0.00 0.75% 15 5.6 4.6 2 0.10 316.78 316.58 CI 86 CI 87 1.11 0.00 1.16% 15 6.9 5.7 131 0.39 341.08 339.57 5.55 CI 87 CI 89 3.90 4.03% 15 13.0 10.5 198 0.31 339.57 331.62 44.24 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11.51 AM Page 18 of 32 i BEND LOSS KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 CI COVER BOX COVER BELOW IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS I (8") (CFS) K CI 130 CI 131 4.47 3.22 2.10 0.00 0.70 CI 131 CI 133 4.67 3.42 2.30 0.00 0.00 CI 133 CI 141 4.67 3.42 2.30 0.24 0.00 CI 141 CI 142 4.87 3.37 2.25 0.84 0.70 CI 142 CI 143 5.37 3.37 2.25 0.84 0.00 CI 143 FES 201 7.74 5.74 4.62 4.48 0.00 CI 132 CI 133 4.47 3.22 2.10 0.00 0.70 CI 140 CI 141 4.47 3.22 2.10 0.00 0.70 CI 145 CI 144 4.47 3.22 2.10 0.00 0.00 CI 144 CI 146 4.47 3.22 2.09 0.00 0.50 CI 146 CI 143 4.94 3.69 2.57 0.00 0.70 _5 ABOVE CI 67 CI 66 4.47 3.22 2.10 0.00 0.70 CI 66 CI 68 4.67 3.42 2.30 0.00 0.00 CI 68 CI 70 5.23 3.73 2.61 2.00 0.28 CI 70 CI 72 5.24 3.24 2.12 3.92 0.40 CI 72 CI 76 6.26 3.76 2.63 10.53 0.40 CI 76 SDMH 77 5.74 3.24 2.12 10.53 0.40 SDMH 77 CI 78 5.76 3.26 2.13 10.53 0.28 CI 78 CI 80 5.81 3.31 2.19 12.42 0.00 CI 80 CI 82 13.56 11.06 9.94 15.05 0.00 CI 82 CI 84 12.54 9.54 8.42 30.33 0.70 CI 84 CI 85 11.09 7.59 6.46 38.55 0.28 CI 85 FES 198 11.35 7.85 6.72 38.55 0.00 CI 69 CI 68 4.47 3.22 2.10 0.00 0.70 CI 71 CI 70 4.47 3.22 2.10 0.00 0.70 CI 75 CI 74 4.47 3.22 2.10 0.00 0.40 CI 74 CI 73 4.92 3.42 2.30 0.00 0.40 CI 73 CI 72 5.06 3.56 2.44 0.00 0.40 CI 79 CI 78 4.47 3.22 2.10 0.00 0.70 CI 81 CI 80 4.47 3.22 2.10 0.00 0.70 CI 86 CI 87 4.47 3.72 2.10 0.00 0.00 CI 87 CI 89 4.67 2.30 0.84 0.00 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 19 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 0 CROW COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) CONTROL I (Fr) DISCHARGE Sediment Control Planning and Design Manual) 4.MANNINGS"n"FACTOR=0.013 CI 130 CI 131 337.56 337.57 337.40 337.57 OUTLET 3.66 0.44 OK 4.94 CI 131 CI 133 334.28 334.43 337.38 337.38 INLET 3.85 0.43 OK 11.52 CI 133 CI 141 318.48 319.39 334.28 334.28 INLET 3.59 0.17 OK 13.67 CI 141 CI 142 313.68 314.51 318.48 318.48 INLET 3.39 0.02 OK 14.80 CI 142 CI 143 310.49 310.63 313.31 313.31 INLET 4.04 0.67 OK 50.94 CI 143 FES 201 298.98 300.28 310.49 310.49 INLET 5.95 0.21 OK 37.80 10yr Pond 298.98 CI 132 CI 133 334.28 334.28 334.03 334.28 OUTLET 3.59 0.37 OK 5.35 CI 140 CI 141 318.48 318.49 318.04 318.49 OUTLET 3.38 0.16 OK 5.00 CI 145 CI 144 310.95 310.98 310.17 310.98 OUTLET 2.93 (0.29) OK 9.72 CI 144 CI 146 310.83 310.95 310.04 310.95 OUTLET 2.70 (0.52) OK 2.48 CI 146 CI 143 310.49 310.83 310.07 310.83 OUTLET 3.18 (0.51) OK 1.76 SCM 15 ABOVE CI 67 CI 66 355.18 355.21 354.92 355.21 OUTLET 3.51 0.29 OK 4.34 CI 66 CI 68 344.79 345.53 355.18 355.18 INLET 3.54 0.12 OK 13.13 CI 68 CI 70 333.20 334.60 344.79 344.79 INLET 3.44 (0.29) OK 19.01 CI 70 CI 72 328.90 329.46 333.20 333.20 INLET 3.49 0.25 OK 36.36 CI 72 CI 76 326.03 326.39 328.27 1328.27 INLET 4.29 0.53 OK 72.86 CI 76 SDMH 77 322.62 323.16 326.03 326.03 INLET 3.71 0.47 OK 54.40 SDMH 77 CI 78 322.22 322.52 322.62 322.62 INLET 3.74 0.48 OK 59.95 CI 78 CI 80 318.11 318.83 322.22 INLET 3.39 0.08 OK 46.19 CI 80 CI 82 310.41 311.28 310.59 OUTLET 9.97 (1.09) OK 29.13 CI 82 CI 84 308.65 310.41 308.61 OUTLET 7.32 (2.22) OK 58.31 CI 84 CI 85 308.09 308.65 303.65 OUTLET 2.80 (4.79) OK 42.11 CI 85 FES 198 307.57 308.09 303.43 308.09 OUTLET 3.36 (4.49) OK 84.09 10yr Pond 307.57 CI 69 CI 68 344.79 344.87 344.50 344.87 OUTLET 3.36 0.14 OK 3.59 CI 71 CI 70 333.20 333.27 332.95 333.27 OUTLET 3.42 0.20 OK 3.68 CI 75 CI 74 329.15 329.30 329.13 329.30 OUTLET 3.42 0.20 OK 2.62 CI 74 CI 73 328.85 329.15 329.01 329.15 OUTLET 3.57 0.15 OK 2.85 CI 73 CI 72 328.50 328.82 328.85 328.85 INLET 3.71 0.15 OK 2.51 CI 79 CI 78 322.29 321.87 322.29 OUTLET 3.32 0.10 OK 3.71 CI 81 CI 80 317.72 317.60 317.72 OUTLET 3.53 0.31 OK 2.96 CI 86 CI 87 340.63 340.68 341.74 341.74 INLET 3.81 0.59 OK 5.84 CI 87 CI 89 332.91 333.72 340.63 NW INLET 3.61 0.19 OK 9.06 1975 Storm.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 20 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED P. g= 226 h= 26 INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREAN INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARGE AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) CI 89 CI 91 CI 89 0.19 0.60 0.60 0.14 0.03 0.57 0.86 5.00 0.70 5.70 7.13 0.63 CI 91 CI 93 CI 91 0.39 0.70 1.12 0.03 0.30 0.82 1.25 5.00 0.84 5.84 7.10 0.65 CI 93 CI 83 CI 93 0.14 0.85 0.78 0.30 0.09 0.69 1.39 5.00 1.04 6.04 7.05 0.67 CI 83 CI 82 CI 83 0.27 0.60 1.33 0.69 0.16 1.18 1.66 5.00 1.08 6.08 7.05 0.66 CI 88 CI 87 CI 88 0.19 0.60 0.46 0.00 0.03 0.44 0.19 5.00 0.00 5.00 7.29 0.60 CI 90 CI 89 CI 90 0.57 0.70 1.6 0.03 1.26 0.57 5.00 0.00 5.00 7.29 0.70 CI92 CI91 CI92 0.62 0.50 0.35 0.34 1.25 0.62 5.00 0.00 5.00 7.29 0.50 CI 94 CI 93 CI 94 0.43 0.50 1.21 0.34 0.99 0.43 5.00 0.00 5.00 7.29 0.50 CI 147 CI 148 CI 147 0.28 0.65 0.73 0.00 0.08 0.64 0.28 5.00 0.00 5.00 7.29 0.65 CI 148 CI 150 CI 148 0.47 0.55 1.04 0.00 0.16 0.88 0.75 5.00 0.10 5.10 7.27 0.59 CI 150 CI 152 CI 150 0.37 0.55 0.97 0.16 0.14 0.83 1.12 5.00 0.27 5.27 7.23 0.57 CI 152 CI 153 CI 152 0.28 0.50 0.69 0.14 0.07 0.62 1.40 5.00 0.47 5.47 7.18 0.56 CI 153 CI84 CI 153 0.08 0.85 0.65 0.38 1.00 0.65 1.47 5.00 0.60 5.60 7.15 0.58 CI 149 CI 150 CI 149 0.25 0.65 0. 0.65 0.25 5.00 0.00 5.00 7.29 0.65 CI 151 CI 152 CI 151 0.07 0.85 0.33 0.08 0.01 0.31 0.07 5.00 0.00 5.00 7.29 0.85 CI 154 CI 153 CI 154 0.08 0.85 0.30 0.01 0.30 0.08 5.00 0.00 5.00 7.29 0.85 SCM 14 ABOVEIII CI 155 CI 156 CI 155 0.07 0.85 0.24 0.00 .01 0.23 0.07 5.00 0.00 5.00 7.29 0.85 CI 156 CI 202 CI 156 0.11 0.75 0.33 0.00 0.01 0.31 0.18 5.00 0.10 5.10 7.27 0.79 CI 202 CI 175 CI 202 0.00 0.80 0.02 0.01 0.00 0.02 0.18 5.00 0.28 5.28 7.23 0.79 CI 175 CI 176 CI 175 0.68 0.65 1.76 0.00 0.40 1.36 0.86 5.00 0.72 5.72 7.12 0.68 CI 176 CI 178 CI 176 0.29 0.65 1.15 0.40 0.20 0.95 1.15 5.00 0.82 5.82 7.10 0.67 CI 178 CI 180 CI 178 0.30 0.65 0.99 0.20 0.15 0.84 1.45 5.00 0.92 5.92 7.08 0.67 CI 180 CI 182 CI 180 0.40 0.65 1.18 0.15 0.20 0.98 1.85 5.00 1.06 6.06 7.05 0.66 CI 182 CI 184 CI 182 0.29 0.65 0.95 0.20 0.14 0.81 2.13 5.00 1.16 6.16 7.03 0.66 CI 184 CI 186 CI 184 0.08 0.85 0.41 0.14 0.02 0.38 2.21 5.00 1.31 6.31 6.99 0.67 CI 186 CI 188 CI 186 0.08 0.85 0.30 0.02 0.01 0.30 2.30 5.00 1.45 6.45 6.96 0.68 CI 188 CI 187 CI 188 0.05 0.85 0.17 0.01 0.00 0.17 2.34 5.00 1.51 6.51 6.95 0.68 CI 187 FES 203 CI 187 0.13 0.60 1.11 0.80 0.18 0.93 2.47 5.00 1.54 6.54 6.95 0.67 CI 174 CI 175 CI 174 0.48 0.65 1.25 0.00 0.23 1.02 0.48 5.00 0.00 5.00 7.29 0.65 CI 177 CI 178 CI 177 0.29 0.65 0.99 A 0.23 I 015 0.84 0.29 5.00 0.00 5.00 7.29 0.65 1975 Siomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 21 of 32 STORM DRAINAGE/HYDRAULIC GRADE LIII DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 f h= 26 Q Q UPSTREAM SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) CI 89 CI 91 7.59 5.02% 18 23.5 13.3 115 0.14 331.37 325.60 336.30 CI 91 CI 93 11.77 5.02% 24 50.7 16.1 189 0.20 EMEMEIMM 330.53 CI 93 CI 83 14.16 8.96% 24 67.7 21.5 50 0.04 311.19 306.72 321.04 CI 83 CI 82 0.00 2.00% 24 32.0 10.2 27 0.04 306.72 306.19 317.73 CI 88 CI 87 0.. 0.00 0.75% 15 5.6 4.6 ES 27 0.10 MIME 339.57 344.24 CI 90 CI 89 6 2.89 0.00 0.75% 15 5.6 4.6 27 0.10 MEM 331.63 336.30 CI 92 CI 91 I 2.26 0.00 0.75% 15 5.6 4.6 MI 27 0.10 326.06 325.86 30.53 CI 94 CI 93 0.00 0.75% 15 5.6 4.6 127 0.10 316.57 316.37 21.04 CI 147 CI 148 1.32 0.00 0.75% 15 5.6 4.6 MI 27 0.10 EZEMEMESE 319.99 CI 148 CI 150 3.21 0.00 4.50% 15 13.7 11.1 116 0.17 .111METIME 319.99 CI 150 CI 152 5.84 1.18 3.18% 18 18.7 10.6 128 0.20 MIME= 314.71 CI 152 CI 153 7.24 0.45 I 0.75% 18 9.1 5.1 40 0.13 =El= 310.64 CI 153 CI 84 7 0.52 1.17% 18 11.4 6.4 83 0.22 305.67 I• I 310.39 CI 149 CI 150 1.18 0.00 0.75% 15 5.6 4.6 27 0.10 MIME 310.04 314.71 CI 151 CI 152 0.00 0.75% 15 5.6 4.6 27 0.10 306.17 305.97 310.64 CI 154 CI 153 L 0.52 0.00 0.75% 15 5.6 4.6 27 0.10 MM. 305.72 10.39 SCM 14 ABOVE 1111■ CI 155 CI 156 0.44 0.00 0.75% 15 5.6 4.6 27 0.10 MIIMERIM 326.79 CI 156 CI 202 1.03 0.00 0.74% 15 5.6 4.5 48 0.18 MIIIMEMEM 326.79 CI 202 CI 175 1.04 0.00 2.67% 15 10.6 8.6 231 0.45 EEIBEETIM 326.90 CI 175 CI 176 6.43 2.27 4.31% 18 21.8 12.3 72 0.10 .11311.E1EN 320.04 CI 176 CI 178 7.75 0.00 4.39% 24 47.4 15.1 87 0.10 EDEN 307.90 316.94 CI 178 CI 180 10.51 1.38 4.50% 24 48.0 15.3 131 0.14 307.90 302.00 313.20 CI 180 CI 182 14.29 1.99 4.51% 24 48.1 15.3 95 0.10 302.00 297.70 307.30 CI 182 CI 184 17.44 1.87 4.51% 24 48.0 15.3 138 0.15 297.70 291.50 303.01 CI 184 CI 186 20.28 2.42 4.52% 30 87.3 17.8 144 0.13 291.001 296.82 CI 186 CI 188 23.29 ` 2.57 I 6.24% 30 102.5 20.9 80 0.06 =ME= 290.32 CI 188 CI 187 24.89 1.34 4.45% 30 86.6 17.6 27 0.03 =ME= 287.76 CI 187 FES 203 25.43 0.00 8.64% 30 120.5 24.5 38 0.03 EIMMEIME 87.76 CI 174 CI 175 2.2M 0.00 0.79% 15 5.8 4.7 27 0.09 315.53 315.32 t20.03 CI 177 CI 178 136 - 0.00 0.75% 15 5.6 4.6 0.10 308.70 308.50 1.313.20 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 22 of 32 BEND LOSS KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 CI COVER BOX COVER BELOW ;IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS I (8") (CFS) K CI 89 CI 91 4.93 3.43 2.31 3.74 0.00 CI 91 CI 93 5.42 3.42 2.30 5.99 0.40 CI 93 CI 83 9.85 7.85 6.73 7.57 0.40 CI 83 CI 82 11.01 9.01 7.88 7.57 0.70 CI 88 CI 87 4.47 3.22 2.10 0.00 0.70 CI 90 CI 89 4.47 3.22 2.10 0.00 0.70 CI 92 CI 91 4.47 3.22 2.10 0.00 0.70 CI 94 CI 93 4.47 3.22 2.10 0.00 0.70 CI 147 CI 148 4.47 3.22 2.10 0.00 0.70 CI 148 CI 150 4.47 3.22 2.10 0.00 0.00 CI 150 CI 152 4.67 3.17 2.05 1.18 0.00 CI 152 CI 153 4.67 3.17 2.05 1.63 0.00 CI 153 CI 84 4.72 3.22 2.09 2.15 0.70 CI 149 CI 150 4.47 3.22 2.10 0.00 0.70 CI 151 CI 152 4.47 3.22 2.10 0.00 0.70 CI 154 CI 153 4.47 3.22 2.10 0.00 0.70 SCM 14 ABOVE CI 155 CI 156 4.50 3.25 2.13 0.00 0.55 CI 156 CI 202 4.70 3.45 2.33 0.00 0.55 CI 202 CI 175 5.17 3.92 2.79 0.00 0.10 CI 175 CI 176 4.72 3.22 2.10 2.27 0.10 CI 176 CI 178 5.24 3.24 2.12 2.27 0.00 CI 178 CI 180 5.30 3.30 2.18 3.66 0.00 CI 180 CI 182 5.30 3.30 2.18 5.65 0.00 CI 182 CI 184 5.31 3.31 2.19 7.52 0.00 CI 184 CI 186 5.82 3.32 2.19 9.93 0.10 CI 186 CI 188 5.82 3.32 2.19 12.50 0.70 CI 188 CI 187 8.28 5.78 4.65 13.84 0.00 CI 187 FES 203 9.46 6.96 5.83 13.84 0.00 CI 174 CI 175 4.50 3.25 2.13 0.00 0.70 CI 177 CI 178 4.50 3.75 2.13 0.00 0.70 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 23 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 0 CROW COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) CONTROL I (Fr) DISCHARGE Sediment Control Planning and Design Manual) 4.MANNINGS"n"FACTOR=0.013 CI 89 CI 91 326.80 327.57 332.91 INLET 3.39 (0.04) OK 15.94 CI 91 CI 93 317.22 317.94 326.72 INLET 3.81 0.39 OK 38.94 CI 93 CI 83 311.00 311.51 313.07 INLET 7.97 0.12 OK 53.54 CI 83 CI 82 311.00 308.74 311.00 OUTLET 6.73 (2.28) OK 16.71 CI 88 CI 87 340.64 340.42 340.64 OUTLET 3.60 0.38 OK 4.75 CI 90 CI 89 W2.91 I 333.08 332.69 333.08 OUTLET 3.22 0.00 OK 2.70 CI 92 CI 91 326.96 326.83 326.96 OUTLET 3.57 0.35 OK 3.34 CI 94 CI 93 317.42 317.27 317.42 OUTLET 3.62 0.40 OK 4.02 CI 147 CI 148 316.44 316.47 316.20 316.47 OUTLET 3.52 0.30 OK 4.27 CI 148 CI 150 311.29 311.64 316.44 316.44 INLET 3.55 0.33 OK 10.49 CI 150 CI 152 309.94 310.43 311.26 311.26 INLET 3.45 0.28 OK 12.89 CI 152 CI 153 309.59 309.94 307.44 OUTLET 0.70 (2.47) OK 1.86 CI 153 CI 84 309.59 307.35 19.59 OUTLET 0.80 (2.42) OK 3.14 CI 149 CI 150 311.26 311.29 310.90 311.29 OUTLET 3.42 0.20 OK 4.41 CI 151 CI 152 309.94 306.80 309.94 OUTLET 0.70 (2.52) OK 5.15 CI 154 CI 153 309.59 I 309.60 306.55 309.60 OUTLET 0.79 (2.43) OK 5.07 SCM 14 ABOVE - CI 155 CI 156 323.09 323.09 322.92 323.09 OUTLET 3.70 0.45 OK 5.15 CI 156 CI 202 322.73 322.75 322.75 322.75 OUTLET 4.04 0.59 OK 4.54 CI 202 CI 175 316.64 316.71 322.39 322.39 INLET 4.51 0.59 OK 9.51 CI 175 CI 176 313.40 313.81 316.64 316.64 INLET 3.40 0.18 OK 15.37 CI 176 CI 178 309.50 309.66 312.96 312.96 INLET 3.98 0.74 OK 39.63 CI 178 CI 180 303.89 304.28 309.38 309.38 INLET 3.82 0.52 OK 37.50 CI 180 CI 182 300.03 300.60 303.89 303.89 INLET 3.41 0.11 OK 33.77 CI 182 CI 184 293.10 294.19 300.03 300.03 INLET 2.98 (0.33) OK 30.60 CI 184 CI 186 286.72 287.25 292.99 292.99 INLET 3.83 0.51 OK 66.97 CI 186 CI 188 284.27 284.97 286.72 1286.72 . INLET 3.60 0.28 OK 79.19 CI 188 CI 187 283.93 284.27 281.84 284.27 OUTLET 3.49 (2.29) OK 61.66 CI 187 FES 203 283.54 283.93 280.71 283.93 OUTLET 3.83 (3.13) OK 95.12 10yr Pond 283.54 CI 174 CI 175 316.6. 316.74 316.30 316.74 OUTLET 3.29 0.04 OK 3.48 CI 177 CI 178 309.M. 309.54 309.38 309.54 OUTLET 3.66 0.41 OK 4.21 1975 Storm.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 24 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED P. g= 226 h= 26 INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREAN INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARGE AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) CI 179 CI 180 CI 179 0.50 0.55 1.24 0.15 r0.22 1.02 0.50 5.00 0.00 5.00 7.29 0.55 CI 181 CI 182 CI 181 0.51 0.50 1.25 0.22 0.23 1.02 0.51 5.00 0.00 5.00 7.29 0.50 CI 183 CI 184 CI 183 0.66 0.50 0.23 .. 1.23 0.66 5.00 0.00 5.00 7.29 0.50 Mil CI 185 CI 186 CI 185 0.70 0.50 0.33 0.39 1.34 0.70 5.00 0.00 5.00 7.29 0.50 CI 189 CI 190 CI 189 0.11 0.85 0.00 0.33 0.11 5.00 0.00 5.00 7.29 0.85 CI 190 CI 188 CI 190 0.11 0.85 0.00 0.35 0.22 5.00 0.11 5.11 7.26 0.85 CI 157 CI 158 CI 157 0.75 0.65 1.96 0.00 0.46 1.50 0.75 5.00 0.00 5.00 7.29 0.65 CI 158 CI 160 CI 158 0.47 0.45 0.84 0.00 0.11 0.74 1.22 5.00 0.10 5.10 7.27 0.57 CI 160 CI 162 CI 160 0.55 0.45 1.09 0.11 0.18 0.92 1.77 5.00 0.27 5.27 7.23 0.54 CI 162 CI 164 CI 162 0.38 0.65 1.15 0.18 0.19 0.96 2.15 5.00 0.50 5.50 7.17 0.56 CI 164 CI 166 CI 164 0.40 0.65 1.22 0.19 0.21 1.01 2.54 5.00 0.69 5.69 7.13 0.57 CI 166 CI 168 CI 166 0.17 0.65 0.65 0.21 0.07 0.58 2.71 5.00 0.78 5.78 7.11 0.57 CI 168 CI 169 CI 168 0.21 0.55 0.53 0.07 0.04 0.49 2.92 5.00 0.92 5.92 7.08 0.57 CI 169 CI 171 CI 169 0.12 0.50 0.28 0.04 0.01 0.28 3.04 5.00 1.00 6.00 7.06 0.57 CI 171 CI 172 CI 171 0.48 0.65 1.26 0.01 0.23 1.03 3.52 5.00 1.08 6.08 7.05 0.58 CI 172 CI 173 CI 172 0.68 0.65 1.98 0.23 0.40 1.58 4.20 5.00 1.18 6.18 7.02 0.59 CI 173 FES 204 CI 173 0.04 0.85 0.47 0.34 0.00 0.47 4.24 5.00 1.24 6.24 7.01 0.59 CI 159 CI 160 CI 159 0.31 0.65 1.27 0.46 0.23 1.04 0.31 5.00 0.00 5.00 7.29 0.65 CI 161 CI 162 CI 161 0.44 0.65 1.39 0.23 FM 1.12 0.44 5.00 0.00 5.00 7.29 0.65 CI 163 CI 164 CI 163 0.45 0.65 1.43 0.26 0.28 1.15 0.45 5.00 0.00 5.00 7.29 0.65 CI 165 CI 166 CI 165 0.30 0.65 1.05 0.28 .16 0.89 0.30 5.00 0.00 5.00 7.29 0.65 CI 167 CI 168 CI 167 0.47 0.65 0.16 0.26 1.12 0.47 5.00 0.00 5.00 7.29 0.65 CI 170 CI 171 CI 170 0.52 0.65 0.26 1.28 0.52 5.00 0.00 5.00 7.29 0.65 SCM 16 ABOVE IIIM CI 2 CI 6 CI 2 0.28 0.90 0.00 0.10 0.89 0.28 5.00 0.00 5.00 7.29 0.90 CI 6 CI 5 CI 6 0.11 0.65 0.10 0.00 0.40 0.39 5.00 0.06 5.06 7.28 0.83 CI1 CI 5 CI1 0.27 0.90 0.00 0.15 0.83 0.27 5.00 0.00 5.00 7.29 0.90 1975 Siomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 25 of 32 STORM DRAINAGE/HYDRAULIC GRADE LIII DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 f h= 26 Q Q UPSTREAM SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) CI 179 CI 180 1.99 0.00 0.75% 15 5.6 4.6 27 0.10 302.80 302.60 307.30 CI 181 CI 182 IIM 0.00 0.75% 15 5.6 4.6 ES 27 0.10 298.51 298.31 303.01 CI 183 CI 184 2.42 0.00 0.75% 15 5.6 4.6 27 0.10 292.32 292.12 296.82 CI 185 CI 186 0.00 0.75% 15 5.6 4.6 ES 27 0.10 285.82 285.62 90.32 CI 189 CI 190 0.68 0.00 0.60% 15 5.0 4.1 27 0.11 280.87 280.71 285.37 CI 190 CI 188 1.34 0.00 0.71% 15 5.5 4.4 172 0.65 280.71 279.48 285.37 CI 157 CI 158 3.56 0.00 0.75% 15 5.6 4.6 27 0.10 311.08 310.88 315.58 CI 158 CI 160 5.09 0.00 3.31% 15 11.8 9.6 100 0.17 310.88 307.57 315.58 CI 160 CI 162 8.31 1.47 3.43% 18 19.4 11.0 150 0.23 307.32 302.18 312.14 CI 162 CI 164 12.12 3.62% 24 42.013.7 0.10 301.68 293.67 306.98 CI 164 CI 166 16.02 3.62% 24 43.1 79 13.7 79 0.10 296.53 293.67 301.83 CI 166 CI 168 18.19 3.71% 24 43.6 13.9 115 0.14 293.67 289.40 298.97 CI 168 CI 169 21.18 3.67% 30 78.6 16.0 80 0.08 288.92 285.97 294.72 CI 169 CI 171 21.57 0.00 3.10% 30 72.2 14.7 65 0.07 285.97 283.96 291.77 CI 171 CI 172 26.21 1.55% 30 51.1 10.4 64 0.10 283.96 282.97 289.76 CI 172 CI 173 29.25 0.00 0.75% 30 35.6 7.2 MI 27 0.06 282.97 282.77 288.77 CI 173 FES 204 29.46 0.00 10.13% 30 130.6 26.6 '39 0.02 279.00 275.00 288.77 CI 159 CI 160 1.41 0.00 0.75% 15 5.6 4.6 27 0.10 307.64 307.44 CI 161 CI 162 " 0.00 0.75% 15 5.6 4.6 27 0.10 302.48 302.28 ;06.98 CI 163 CI 164 0.00 0.75% 15 5.6 4.6 27 0.10 297.33 297.13 _ CI 165 CI 166 0.00 0.75% 15 5.6 4.6 27 0.10 294.48 294.28 1198.98 CI 167 CI 168 0.00 0.75% 15 5.6 4.6 27 0.10 290.23 290.03 _ CI 170 CI 171 0.00 0.75% 15 5.6 4.6 27 0.10 285.26 285.06 _ SCM 16 ABOVE 1=.. IHI CI 2 CI 6 1.80 0.00 1.19% 15 7.1 5.7 0.06 336.50 336.26 141.03 CI 6 CI 5 2.33 0.00 0.77% 15 5.7 4.6 M 0.12 336.26 336.01 F340.98 CI 1 CI 5 1.78 0.00 1.32% 15 7.4 6.0 0.05 336.50 336.26 41.03 1975 Siomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 26 of 32 BEND LOSS KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 CI COVER BOX COVER BELOW IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS I (8") (CFS) K CI 179 CI 180 4.50 3.25 2.13 0.00 0.70 CI 181 CI 182 4.50 3.25 2.13 0.00 0.70 CI 183 CI 184 4.50 3.25 2.13 0.00 0.70 CI 185 CI 186 4.50 3.25 2.13 0.00 0.70 CI 189 CI 190 4.50 3.25 2.13 0.00 0.70 CI 190 CI 188 4.66 3.41 2.29 0.00 0.65 CI 157 CI 158 4.50 3.25 2.13 0.00 0.70 CI 158 CI 160 4.70 3.45 2.32 0.00 0.00 CI 160 CI 162 4.82 3.32 2.19 1.47 0.00 CI 162 CI 164 5.30 3.30 2.18 3.58 0.00 CI 164 CI 166 5.30 3.30 2.18 5.70 0.10 CI 166 CI 168 5.30 3.30 2.18 7.11 0.10 CI 168 CI 169 5.80 3.30 2.18 9.32 0.10 CI 169 CI 171 5.80 3.30 2.18 9.32 0.10 CI 171 CI 172 5.80 3.30 2.18 11.79 0.70 CI 172 CI 173 5.80 3.30 2.18 11.79 0.00 CI 173 FES 204 9.77 7.27 6.14 11.79 0.00 CI 159 CI 160 4.50 3.25 2.13 0.00 0.70 CI 161 CI 162 4.50 3.25 2.13 0.00 0.70 CI 163 CI 164 4.50 3.25 2.13 0.00 0.70 CI 165 CI 166 4.50 3.25 2.13 0.00 0.70 CI 167 CI 168 4.50 3.25 2.13 0.00 0.70 CI 170 CI 171 4.50 3.25 2.13 0.00 0.70 SCM 16 ABOV CI 2 CI 6 4.53 3.28 2.15 0.00 0.70 CI 6 CI 5 4.72 3.47 2.35 0.00 0.70 CI1 CI 5 4.53 2.15 0.00 0.00 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 27 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 0 CROW COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) CONTROL I (Fr) DISCHARGE Sediment Control Planning and Design Manual) 4.MANNINGS"n"FACTOR=0.013 CI 179 CI 180 303.84 303.97 303.54 303.97 OUTLET 3.33 0.08 OK 3.61 CI 181 CI 182 300.03 00.10 299.24 300.10 OUTLET 2.91 (0.34) OK 3.72 CI 183 CI 184 293. 293.24 293.11 293.24 OUTLET 3.58 0.33 OK 3.18 CI 185 CI 186 286.85 286.63 286.85 OUTLET 3.47 0.22 OK 3.03 CI 189 CI 190 284.36 284.37 281.51 284.37 OUTLET 1.00 (2.25) OK 4.34 CI 190 CI 188 284.27 284.36 281.39 284.36 OUTLET 1.01 (2.40) OK 4.11 CI 157 CI 158 312.25 312.50 312.07 312.50 OUTLET 3.08 (0.17) OK 2.03 CI 158 CI 160 309.02 309.80 312.25 312.25 INLET 3.33 (0.12) OK 6.67 CI 160 CI 162 303.38 304.52 309.02 309.02 INLET 3.12 (0.20) OK 11.13 CI 162 CI 164 298.65 299.22 303.32 INLET 3.66 0.36 OK 29.92 CI 164 CI 166 296.12 296.79 298.65 INLET 3.18 (0.12) OK 27.05 CI 166 CI 168 291.00 292.10 296.12 INLET 2.85 (0.45) OK 25.39 CI 168 CI 169 288.05 288.47 290.97 •7 INLET 3.75 0.45 OK 57.41 CI 169 CI 171 286.58 286.96 288.05 288.05 INLET 3.72 0.42 OK 50.65 CI 171 CI 172 285.75 286.58 286.44 OUTLET 3.18 (0.12) OK 24.87 CI 172 CI 173 284.77 285.23 285.75 285.75 INLET 3.02 (0.28) OK 6.38 CI 173 FES 204 283.54 284.07 281.80 284.07 OUTLET 4.70 (2.57) OK 101.11 10yr Pond 283.54 CI 159 CI 160 309.02 309.07 308.33 309.07 OUTLET 3.07 (0.18) OK 4.12 CI 161 CI 162 303.32 303.41 303.23 303.41 OUTLET 3.57 0.32 OK 3.49 CI 163 CI 164 298.74 298.08 298.74 OUTLET 3.09 (0.16) OK 3.48 CI 165 CI 166 296.16 295.16 296.16 OUTLET 2.82 (0.43) OK 4.18 CI 167 CI 168 291.13 290.99 291.13 OUTLET 3.60 0.35 OK 3.39 CI 170 CI 171 286.70 286.06 286.70 OUTLET 3.06 (0.19) OK 3.13 SCM 16 ABOVE CI 2 CI 6 337.31 337.37 337.22 337.37 OUTLET 3.66 0.38 OK 5.25 CI 6 CI 5 337.19 337.31 337.04 337.31 OUTLET 3.67 0.20 OK 3.33 CI1 CI 5 337.26 337.29 337.22 337.29 OUTLET 3.74 0.46 OK 5.64 1975 Storm.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 28 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(1 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED P. g= 226 h= 26 - INLET Q(+) Q(-) CAPTURED Tc I Cc INLET Cc INLET UPSTREAN INLET INLET TOTAL INLET PIPE TIME RUNOFF FROM TO AREAS AREA RUNOFF )ISCHARGE BYPASS BYPASS )ISCHARGE AREAS TIME TIME OF CONC.INTENSITY COEFF. (INLETS) (AC) COEFF. (CFS) (CFS) (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) CI 5 CI 4 CI 5 0.05 0.85 0.32 0.15 0.00 0.32 0.32 5.00 0.05 5.05 7.28 0.89 CI 4 SDMH 219 CI 4 0.13 0.90 0.77 0.31 0.03 0.74 0.45 5.00 0.21 5.21 7.24 0.89 SDMH 219 FES 216 SDMH 219 0.00 0.90 0.00 0.00 0.00 0.00 0.45 5.00 0.27 5.27 7.23 0.89 CI 3 CI 4 CI 3 1.06 0.37 1. 0.12 1.46 1.06 5.00 0.00 5.00 7.29 0.37 LOW DENSITY AREA ABOVE RI 207 FES 208 RI 207 1.00 0.99 3.96 0.00 3.96 1.00 5.00 0.00 5.00 7.29 0.99 RI 205 FES 206 RI 205 1.00 0.99 3.96 0.00 FIRM 3.96 1.00 5.00 0.00 5.00 7.29 0.99 RI 209 SDMH 211 RI 209 1.00 0.99 0.00 0.00 3.96 1.00 5.00 0.00 5.00 7.29 0.99 SDMH 211 FES 210 SDMH 211 0.00 0.99 0.00 0.00 0.00 1.00 5.00 0.06 5.06 7.28 0.99 RI 212 FES 213 RI 212 1.00 0.99 0.00 0.00 3.96 1.00 5.00 0.00 5.00 7.29 0.99 RI 214 FES 215 RI 214 1.00 0.99 0.00 3.96 1.00 5.00 0.00 5.00 7.29 0.99 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 29 of 32 STORM DRAINAGE/HYDRAULIC GRADE LI DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB n= 0.013 STORM DRAINAGE SCHEDULE-CONTINUED g= 226 f h= 26 Q Q UPSTREAM SIDE- CAPACITY SEGMENT UPPER LOWER TOP FROM TO )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. (CFS) (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) CI 5 CI 4 4.42 2.33 0.59% 15 5.0 4.0 39 0.16 336.01 335.78 1 340.98 CI 4 SDMH 219 8.11 2.87 2.19% 15 9.6 7.8 27 0.06 331.40 330.80 341.19 SDMH 219 FES 216 8.11 0.00 6.00% 15 15.8 12.9 MI 88 0.11 327.50 322.24 339.42 CI 3 CI 4 2.811M 0.00 0.73% 15 5.5 4.5 0.12 331.64 331.40 LOW DENSITY AREA ABOVE RI 207 FES 208 22.10 0.00 9.81% 24 70.9 22.5 0.06 312.50 305.00 RI 205 FES 206 37.30 0.00 5.86% 42 243.6 25.3 77 0.05 307.50 303.00 315.20 RI 209 SDMH 211 25.99 0.00 1.01% 30 41.2 8.4 30 0.06 304.50 304.20 10.70 SDMH 211 FES 210 25.99 0.00 0.62% 30 32.4 6.6 192 0.49 304.20 303.00 10.70 RI212 FES213 29.10 0.00 3.95% 36 132.6 18.7 0.06 295.50 293.00 RI 214 FES 215 22.52 0.00 2.78% 30 68.4 13.9 0.06 279.50 278.00 1.285.70 1975 Stomn.xlex 10-YEAR Date:3/4/2024 Time:11.51 AM Page 30 of 32 BEND LOS; KS n= 0.013 90 DEG=0.7 30 DEG=0.28 g= 226 i0 DEG=0.55 15 DEG=0.10 h= 26 CI COVER BOX COVER BELOW IDESTREA BEND FROM TO DEPTH SUBGRADBUMMATIOI LOSS I (8") (CFS) K CI 5 CI 4 4.97 3.72 2.60 2.33 0.55 CI 4 SDMH 219 9.79 8.54 7.42 5.20 0.00 SDMH 219 FES 216 11.92 10.67 9.55 5.20 0.90 CI 3 CI 4 9.55 8.30 7.18 0.00 0.55 LOW DENSITY AREA ABOVE illiMm RI 207 FES 208 7.70 5.70 4.57 0.00 0.00 RI 205 FES 206 7.70 4.20 3.07 0.00 0.00 RI 209 SDMH 211 6.20 3.70 2.57 0.00 0.70 SDMH 211 FES 210 6.50 4.00 2.88 0.00 0.00 RI 212 FES 213 6.70 3.70 2.57 0.00 0.00 RI 214 FES 215 6.20 3.70 2.57 0.00 0.00 1975 Stomn.xlsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 31 of 32 STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE ANALYSIS(10 YEAR) 04-04-23 PRELIM / / PROJECT NAME PROJECT NO CONSTR / X / Serenity Phase 3,4&5 1975 REVISION / / LOCATION BY RECORD / / Harnett County,North Carolina CJP OTHER / / CHECKED BY (SPECIFY) CSB DESIGN CRITERIA: n= 0.013 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM g= 226 2.ASSUME TIME OF CONCENTRATION TO h= 26 AN INDIVIDUAL INLET=5 MIN.(Unless otherwise noted) INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity- FROM TO W.S.ELEV CONTOL CONTROL CONDITION BOARD 0 CROW COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and (FT) (Fr) (FT) (FT) CONTROL I (Fr) DISCHARGE Sediment Control Planning and Design Manual) 4.MANNINGS"n"FACTOR=0.013 CI 5 CI 4 336.78 337.19 337.19 337.19 INLET 3.79 0.07 OK 0.55 CI 4 SDMH 219 331.80 332.64 333.91 333.91 INLET 7.28 (1.26) OK 1.44 SDMH 219 FES 216 323.24 325.62 330.01 330.01 INLET 9.41 (1.26) OK 7.72 CI 3 CI 4 333.91 334.07 332.50 334.07 OUTLET 7.12 (1.18) OK 2.64 LOW DENSITY AREA ABOVE RI 207 FES 208 306.60 307.78 315.63 315.63 INLET 4.57 (1.13) OK 48.76 RI 205 FES 206 305.80 306.04 309.90 309.90 INLET 5.30 1.10 OK 206.29 RI 209 SDMH 211 306.66 307.34 306.96 307.34 OUTLET 3.36 (0.34) OK 15.23 SDMH 211 FES 210 305.00 306.02 306.66 306.66 INLET 4.04 0.04 OK 6.40 RI 212 FES 213 295.40 295.68 297.73 297.73 INLET 4.47 0.77 OK 103.49 RI 214 FES 215 280.00 280.35 281.66 281.66 INLET 4.04 0.34 OK 45.90 1975 Storrn.vsx 10-YEAR Date:3/4/2024 Time:11:51 AM Page 32 of 32