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HomeMy WebLinkAboutSW6240106_Design Calculations_20240516 (2) Permanent Swale 20 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECI NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth.d,result with Q=Q25 DESIGN STORM: 25-YEAR 025=CIA 8.87 in/hr Area 2.6493963 AC Built Upon Area 0.091 AC Runoff C 0.9 Weighted"C 0.321 Grassed Area 2.5583963 AC Runoff C 0.3 Q25 7.53 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ff/s MAXIMUM d= 0.770 F 1 A= 2.55 FTA2 Slope Condition P= 5.87 FT n= 0.030 (DEHNR. 1993) R= 0.43 B= 1 FT Q= 7.61 CFS Z= 3 •1 V= 2.99 FPS S= 0.0110 FT/FT W= 5.62 FT S= 1.10% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.53 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q. Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity,(FPS) S= Slope of the Channel.(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z 1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Ib/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.77 FT Bottom Width 1 FT Max.Slope 1.10% Side Slopes 3 : 1 Lining EM REFERENCES: (DEHNR. 1988; DEHNR. 1993) Permanent Swale 21 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 I OCATION CHECKED BY 910-684-8646 Moore County, North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth.d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8 87 in/hr Area 3.684439 AC PLUS PS25.PS26,PS27 Built Upon Area 1.192 AC Runoff C 0.9 Weighted"C 0.494 Grassed Area 2.492439 AC Runoff C 0.3 Q25: 16.15 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.590 FT A= 5.17 FT^2 Slope Condition P= 10.73 FT n= 0.030 (DEHNR, 1993) R= 0.48 8= 7 FT 0= 16.57 CFS Z= 3 1 V= 3.20 FPS S= 0.0110 FT/FT W= 10.54 FT S= 1.10% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.40 LbISF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water.(FT) R= Hydraulic Radius.(FT) V= Trial Velocity,(FPS) S= Slope of the Channel.(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.59 FT Bottom Width 7 FT Max.Slope 1.10% Side Slopes 3 : 1 Lining EM REFERENCES: (DEHNR 1988, DEHNR. 1993) Permanent Swale 22 DATE- 5/7/2024 D&L ENGINEERING, PLLC PPo.ircT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LotPTCA CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 inihr Area 4.479 AC Built Upon Area 0.528 AC Runoff C 0.9 Weighted"C 0 371 Grassed Area 3.951 AC Runoff C 0.3 Q25: 14.73 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.400 FT A= 3.2B FT^2 Slope Condition P= 9.53 FT n= 0.030 (DEHNR, 1993) R= 0.34 B= 7 FT Q= 14.75 CFS Z= 3 :I V= 4.50 FPS S= 0.0340 FT/FT W= 9.40 FT S= 3.40% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.85 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow.(FT) d= Maximum Depth of Water.(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Mln.Depth 0.40 FT Bottom Width 7 FT Max.Slope 3.40% Side Slopes 3 : 1 Lining EM REFERENCES: (DEHNR. 1988, DEHNR, 1993) Permanent Swale 23 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 1_ocAT ON CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d.result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8 87 in/hr Area 1.934 AC Built Upon Area 0.619 AC Runoff C 0.9 Weighted"C 0.492 Grassed Area 1.315 AC Runoff C 0.3 Q25: 8.44 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.450 FT A= 1.96 FT^2 Slope Condition P= 5.85 FT n= 0.030 (DEHNR, 1993) R= 0.33 B= 3 FT Q= 8.64 CFS Z= 3 :1 V= 4.42 FPS S= 0.0340 FT/FT W= 5.70 FT S= 3.40% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.95 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow.(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel.(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.45 FT Bottom Width 3 FT Max.Slope 3.40% Side Slopes 3 : 1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR, 1993) Permanent Swale 24 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 0.212 AC Built Upon Area 0.045 AC Runoff C 0.9 Weighted"C 0.427 Grassed Area 0.167 AC Runoff C 0.3 Q25: 0.80 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.270 FT A= 0.49 FTA2 Slope Condition P= 2.71 FT n= 0.030 (DEHNR, 1993) R= 0.18 8= 1 FT Q= 0.81 CFS Z= 3 :1 V= 1.66 FPS S= 0.0110 FT/FT W= 2.62 FT S= 1.10% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.19 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius.(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel. Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.27 FT Bottom Width 1 FT Max.Slope 1.10% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988, DEHNR, 1993) DATF 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P 2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S. Page Street DTU Southern Pines,NC 28387 OCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth.d.result with Q=Q25 DESIGN STORM: 25-YEAR 025=CIA 8.87 inihr Area 0.925 AC Built Upon Area 0.149 AC Runoff C 0.9 Weighted"C 0 397 Grassed Area 0.776 AC Runoff C 0.3 Q25: 3.25 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.320 FT A= 0.95 FT^2 Slope Condition P= 4.02 FT n= 0.030 (DEHNR 1993) R= 0.24 B= 2 FT Q= 3.31 CFS Z= 3 •1 V= 3.49 FPS S= 0.0340 FT/FT W= 3.92 FT S= 3.40% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.68 LbISF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow.(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius.(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient 0= Trial Discharge.(CFS) B= Bottom Width of Channel.(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.32 FT Bottom Width 2 FT Max.Slope 3.40% Side Slopes 3 : 1 Lining EM REFERENCES: (DEHNR, 1988: DEHNR 1993) Permanent Swale 26 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 F,TION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth.d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 3.378 AC Built Upon Area 0.847 AC Runoff C 0.9 Weighted"C 0.450 Grassed Area 2.531 AC Runoff C 0.3 Q25: 13.50 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.930 FT A= 5.38 FTA2 Slope Condition P= 8.88 FT n= 0.030 (DEHNR, 1993) R= 0.61 B= 3 FT Q= 13.55 CFS Z= 3 1 V= 2.52 FPS S= 0.0050 FT/FT W= 8.58 FT S= 0.50% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.29 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel.(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.93 FT Bottom Width 3 FT Max.Slope 0.50% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR, 1993) Permanent Swale 27 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V,through the TYPICAL SECTION Use Trial&Error to make the flow depth.d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 1.04 AC Built Upon Area 0.286 AC Runoff C 0.9 Weighted"C 0.465 Grassed Area 0.754 AC Runoff C 0.3 Q25: 4.29 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.600 FT A= 2.28 FT42 Slope Condition P= 5.79 FT n= 0.030 (DEHNR, 1993) R= 0.39 B= 2 FT Q= 4.30 CFS Z= 3 '1 V= 1.89 FPS S= 0.0050 FT/FT W= 5.60 FT S= 0.50% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.19 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow,(I-I) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Ib/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.60 FT Bottom Width 2 FT Max.Slope 0.50% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR, 1993) Permanent Swale 28 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth.d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 0.446 AC Built Upon Area 0.103 AC Runoff C 0.9 Weighted"C 0.439 Grassed Area 0.343 AC Runoff C 0.3 025: 1.73 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.480 FT A= 1.17 FTA2 Slope Condition P= 4.04 FT n= 0.030 (DEHNR, 1993) R= 0.29 8= 1 FT Q= 1.80 CFS Z= 3 .1 V= 1.54 FPS S= 0.0050 FT/FT W= 3.88 FT S= 0.50% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.15 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Iblcf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.48 FT Bottom Width 1 FT Max.Slope _ 0.50% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR. 1993) Permanent Swale 29 DATE 5/7/2024 D&L ENGINEERING, PLLC FRCJFCTNAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 1.53 AC Built Upon Area 0.355 AC Runoff C 0.9 Weighted"C 0.439 Grassed Area 1.175 AC Runoff C 0.3 Q25: 5.96 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.830 FT A= 2.90 FT"2 Slope Condition P= 6.25 FT n= 0.030 (DEHNR, 1993) R= 0.46 8= 1 FT Q= 6.09 CFS Z= 3 :1 V= 2.10 FPS S= 0.0050 FT/FT W= 5.98 FT S= 0.50% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.26 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.83 FT Bottom Width 1 FT Max.Slope 0.50% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR; 1988; DEHNR, 1993) Permanent Swale 30 DATE 5/7/2024 D&L ENGINEERING, PLLC PPOJrCT NAME PROJECT NO P 2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LC:4TICN CHECKED EY 910-684-8646 Moore County.North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V.through the TYPICAL SECTION Use Trial&Error to make the flow depth.d.result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 0.171 AC Built Upon Area 0.057 AC Runoff C 0.9 Weighted"C 0 500 Grassed Area 0.114 AC Runoff C 0.3 Q25: 0.76 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.220 FT A= 0.37 FT^2 Slope Condition P= 2.39 FT n= 0.030 (DEHNR, 1993) R= 0.15 B= 1 FT 0= 0.83 CFS Z= 3 1 V= 2.28 FPS S 0.0259 FT/FT W= 2.32 FT S= 2.59% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.36 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius.(FT) V= Trial Velocity,(FPS) S= Slope of the Channel.(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel. Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Ib/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.22 FT Bottom Width 1 FT Max.Slope 2.59% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988, DEHNR. 1993) Permanent Swale 31 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity V.through the TYPICAL SECTION Use Trial&Error to make the flow depth.d,result with Q=Q25 DESIGN STORM: 25-YEAR 025=CIA 8.87 in/hr Area 0.312 AC Built Upon Area 0.126 AC Runoff C 0.9 Weighted"C 0.542 Grassed Area 0.186 AC Runoff C 0.3 025' 1.50 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.300 FT A= 0.57 FTA2 Slope Condition P= 2.90 FT n= 0.030 (DEHNR. 1993) R= 0.20 B= 1 FT Q= 1.54 CFS Z= 3 -1 V= 2.70 FPS S= 0.0259 FT/FT W= 2.80 FT S= 2.59% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.48 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel.(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Ib/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.30 FT Bottom Width 1 FT Max.Slope 2.59% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR. 1988- DEHNR, 1993) DATE 5/7/2024 D&L ENGINEERING, PLLC rRo.JEci NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LocA.1 ioN CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V.through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 1.29 AC Built Upon Area 0.355 AC Runoff C 0.9 Weighted"C 0.465 Grassed Area 0.935 AC Runoff C 0.3 Q25: 6.32 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.470 FT A= 1.60 FTA2 Slope Condition P= 4.97 FT n= 0.030 (DEHNR, 1993) R= 0.32 B= 2 FT Q= 5.44 CFS Z= 3 :1 V= 3.39 FPS S= 0.0211 FT/FT W= 4.82 FT S= 2.11% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.62 LbISF SM SYNTHETIC MAT RR RIPRAP (A,B.1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Ib/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.47 FT Bottom Width 2 FT Max.Slope 2.11% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR. 1993) Permanent Swale 33 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V.through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 2.232 AC Built Upon Area 0.677 AC Runoff C 0.9 Weighted"C 0 482 Grassed Area 1.555 AC Runoff C 0.3 025: 9.64 cfs NOTE: The velocity of the water entering a maintained veg swats must be<5 fUs MAXIMUM d= 0.520 FT A= 2.37 FTA2 Slope Condition P= 6.29 FT n= 0.030 (DEHNR, 1993) R= 0.38 B= 3 FT Q= 9.72 CFS Z= 3 :1 V= 4.10 FPS S= 0.0250 FT/FT W= 6.12 FT S= 2.50% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.81 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow.(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius.(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.52 FT Bottom Width 3 FT Max.Slope 2.50% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR, 1993) Permanent Swale 34 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P 2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 1.223 AC Built Upon Area 0.482 AC Runoff C 0.9 Weighted"C 0 53E3 Grassed Area 0.741 AC Runoff C 0.3 Q25: 5.82 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.420 FT A= 1.79 FTA2 Slope Condition P= 5.66 FT n= 0.030 (DEHNR, 1993) R= 0.32 8= 3 FT Q= 6.01 CFS Z= 3 .1 V= 3.36 FPS S= 0.0212 FT/FT W= 5.52 FT S= 2.12% FT/FT LINING TYPE: LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.56 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel.(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Ib/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.42 FT Bottom Width 3 FT Max.Slope 2.12% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR, 1993) Permanent Swale 35 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth.d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 1.73 AC Built Upon Area 0.608 AC Runoff C 0.9 Weighted"C 0.511 Grassed Area 1.122 AC Runoff C 0.3 Q25: 7.84 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.490 FT A= 2.19 FTA2 Slope Condition P= 6.10 FT n= 0.030 (DEHNR. 1993) R= 0.36 B= 3 FT Q= 8.00 CFS Z= 3 :1 V= 3.65 FPS S= 0.0212 FT/FT W= 5.94 FT S= 2.12% FT/FT LINING TYPE : LINING EM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.65 LbISF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.49 FT Bottom Width 3 FT Max.Slope 2.12% Side Slopes 3 :1 Lining EM REFERENCES: (DEHNR, 1988; DEHNR, 1993) Permanent Swale 36 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 _ Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 8.907 AC Built Upon Area 0.952 AC Runoff C 0.9 Weighted"C 0 364 Grassed Area 7.955 AC Runoff C 0.3 025: 28.77 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.940 FT A= 10.17 FT^2 Slope Condition P= 13.95 FT n= 0.030 (DEHNR, 1993) R= 0.73 B. 8 FT Q= 28.94 CFS Z= 3 .1 V= 2.85 FPS S= 0.0050 FT/FT W= 13.64 FT S= 0.50% FT/FT LINING TYPE: LINING SM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.29 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge,(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow,(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge,(CFS) B= Bottom Width of Channel,(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.94 FT Bottom Width 8 FT Max.Slope 0.50% Side Slopes 3 : 1 Lining SM REFERENCES: (DEHNR, 1988, DEHNR, 1993) Permanent Swale 37 DATE 5n/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County,North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity.V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 6.3338353 AC Built Upon Area 1.283 AC Runoff C 0.9 Weighted"C U 422 Grassed Area 5.0508353 AC Runoff C 0.3 Q25: 23.68 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.960 FT A= 8.52 FTA2 Slope Condition P= 12.07 FT n= 0.030 (DEHNR. 1993) R= 0.71 B= 6 FT Q= 23.74 CFS Z= 3 1 V= 2.79 FPS S= 0.0050 FT/FT W= 11.76 FT S= 0 50% FT/FT LINING TYPE: LINING SM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.30 LbISF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow.(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge.(CFS) B= Bottom Width of Channel.(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.96 FT Bottom Width 6 FT Max.Slope 0.50% Side Slopes 3 :1 Lining SM REFERENCES: (DEHNR. 1988: DEHNR, 1993) Permanent Swale 38 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECT NAME PROJECT NO P-2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines,NC 28387 lOCA..TION CHECKED BY 910-684-8646 _ Moore County, North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity V,through the TYPICAL SECTION Use Trial&Error to make the flow depth,d,result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 4.303 AC Built Upon Area 0.996 AC Runoff C 0.9 Weighted"C 0 439 Grassed Area 3.307 AC Runoff C 0.3 Q25: 16.75 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.940 FT A= 6.41 FT^2 Slope Condition P= 9.95 FT n= 0.030 (DEHNR, 1993) R= 0.64 B= 4 FT Q= 16.80 CFS Z= 3 .1 V= 2.62 FPS S= 0.0050 FT/FT W= 9.64 FT S= 0.50% FT/FT LINING TYPE: LINING SM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.29 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1,2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow. P= Wetted Perimeter of the Flow.(FT) d= Maximum Depth of Water,(FT) R= Hydraulic Radius,(FT) V= Trial Velocity,(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient 0= Trial Discharge.(CFS) B= Bottom Width of Channel.(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62.4 Ib/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.94 FT Bottom Width 4 FT Max.Slope 0.50% Side Slopes 3 :1 Lining SM REFERENCES: (DEHNR, 1988 DEHNR, 1993) Permanent Swale 39 DATE 5/7/2024 D&L ENGINEERING, PLLC PROJECI NAME PROJECT NO P 2587 Northgate Phase 2&3 DL2317 Moore County,North Carolina BY 150 S.Page Street DTU Southern Pines.NC 28387 LOCATION CHECKED BY 910-684-8646 Moore County.North Carolina JLH SOLUTIONS: Determine the MAXIMUM velocity,V.through the TYPICAL SECTION Use Trial&Error to make the flow depth,d.result with Q=Q25 DESIGN STORM: 25-YEAR Q25=CIA 8.87 in/hr Area 3 455 AC Built Upon Area 1.159 AC Runoff C 0.9 Weighted"C 0.501 Grassed Area 2.296 AC Runoff C 0.3 Q25: 15.36 cfs NOTE: The velocity of the water entering a maintained veg swale must be<5 ft/s MAXIMUM d= 0.990 FT A= 5.91 FT"2 Slope Condition P= 9.26 FT n= 0.030 (DEHNR. 1993) R= 0.64 6= 3 FT Q= 15.39 CFS Z= 3 1 V= 2.60 FPS S= 0.0050 FT/FT W= 8.94 FT S= 0.50% FT/FT LINING TYPE: LINING SM S&M SEED&MULCH Shear Stress: T=YDS EM EXCELSIOR MAT T= 0.31 Lb/SF SM SYNTHETIC MAT RR RIPRAP (A,B,1.2) RM REVETMENT TERMINOLOGY: Q= Peak Discharge.(CFS) A= Cross-Sectional Area of Flow, P= Wetted Perimeter of the Flow.(FT) d= Maximum Depth of Water.(FT) R= Hydraulic Radius,(FT) V= Trial Velocity.(FPS) S= Slope of the Channel,(FT/FT) n= Manning's"n"Coefficient Q= Trial Discharge. (CFS) B= Bottom Width of Channel.(FT) W= Top Width of Water in Channel, Z= Side Slope of Channel (Z:1) T= Shear Stress in Lb/SF Y= Wt of Water(62 4 lb/cf) D= Depth Of Flow S= Slope Of Swale FINISHED DIMENSIONS: Min.Depth 0.99 FT Bottom Width 3 FT Max.Slope 0.50% Side Slopes 3 :1 Lining SM REFERENCES: (DEHNR. 1988. DEHNR. 1993)