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Home My WebLink About20050661 Ver 1_Stormwater Plans_20060706STORMWATER MANAGEMENT PLAN THE VILLAGE OF PENLAND VILLAGE CENTER, WEST QUADRANT Mitchel County, North Carolina Pipe Design Calculations PREPARED BY: ASHTON SMITH EI Randy A. Carperner Engineering and Surveying P.O. BOX 567 SPRUCE PINE, NC 28777 (828)765-9102 `,~a~!n!!!r!rii, i~/~i~f~y~~~ ~ ~,t~ QAi ~ ~~sse y ~'V i e ~• s ~; ?gt~`~c e ~ m _ ~~ ~~, ` ~, a•~d.a«^ ~~ ~~ ~qq A ~~,s ~~ ~!!/l!!13islt\ D ~~~~~ ~D ~~L 0 6 2006 DENR - WarER ~ ST~~,nyQ ~~T1' Input data for these calculations has been taken from the North Cazolina. Erosion and Sediment Control Planning and Design Manual and that topographic map, Drawing No. , by Randy A. Carpenter, PLS, originally submitted with this plan. The project site is located off of US Highway 19 neaz the Sprucepine area. The numbering of ditches, runoff coefficieirts and area acreage for each channel are inculded. All times of conceirtration were found to be less than 5 minutes. Slopes taken from expected road finish grades (may vary). RAINFALL INTENSTI'Y: Mitchell County, North Cazolina 25 year, 24 hour intensity storm = 5.75 inches (Figure 8.03f) RUNOFF CALCULATIONS: Q = CiA Q =discharge (cfs) C =runoff coefficient i =rainfall intensity (inches/hour) A =drainage area (acres) RUNOFF COEFICIENT C : Assuming West Quadrant is 100 % impervious C = 1 MANNING'S n: Bare soil = 0.020 (Table 8.05f) Jute net = 0.028 (0-O.Sft); 0.022 (0.5-2.Oft) (Table 8.OSe) Straw with net = 0.065 (0-O.Sft); 0.033 (0.5-2.Oft) (Table 8.OSe) Rock Riprap (6 inch) = 0.104 (0-O.Sft); 0.069 (0.5-2.Oft) (Table 8.OSf) Corrugated Metal Pipe (CMP) = 0.025 PVC Pipe = 0.010 PERMISSIBLE SHEAR STRESSES: Jute net = 0.45 psf (Table 8.OSg) Straw with net = 1.45 psf (Table 8.OSg) Rock Riprap (6 inch) = 2.00 lb/ftZ (Table 8.OSg) Rock Riprap (9 inch) = 3.00 lb/ft2 (Table 8.OSg) Rock Riprap (12 inch) = 4.00 lb/ftz (Table 8.OSg) HYDRAULIC RADIUS = A/P =Ratio of Flow Area to Wetted Perimeter VR =Product of Velocity and Hydraulic Radius (Figure 8.OSc) for grass lined channel manning's n. VELOCITIES GREATER THAN 2 ft/s MUST USE TEMPORARY LINING or PER11tiANENT LINING SHEAR STRESS CALCULATION T = yds T =Shear stress Y =unit weight of water, 62.41b/ft2 d =flow depth in ft s =channel gradient in ft1ft All roof top drain pipes have a diameter of 4 inches with a minimum of 4 drain pipes for each building Pipe-1 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.38 = 2.19 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 2.19 cfs Results Depth 0.66 ft Diameter 8 in Flow Area 0.3 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.63 ft Percent Full 100.0 % Critical Slope 0.017402 ft/ft Velocity 6.34 ft/s Velocity Head 0.62 ft Specific Energy 1.29 ft Froude Number 0.00 Maximum 2.35 cfs Discharge Discharge Full 2.18 cfs Slope Full 0.020000 ft/ft Flow Type N/A 8 inch PVC pipe runs at 100% full, maximum discharge = 2.35 cfs Pipe-2 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.34 = 1.96 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.96 cfs Results Depth 0.72 ft Diameter 9 in Flow Area 0.4 ftZ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.64 ft Percent Full 100.0 9G Critical Slope 0.009013 ft/ft Velocity 4.76 ft/s Velocity Head 0.35 ft Specific Energy 1.08 ft Froude Number 0.00 MaxHnum 2.11 cfs Discharge Discharge Full 1.96 cfs Slope Full 0.010000 ft/ft Flow Type N/A 9 inch PVC pipe runs at 100% full, maximum discharge = 2.11 cfs Pipe-3 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.30 = 1.73 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.73 cfs Results Depth 0.69 ft Diameter 8 in Flow Area 0.4 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.61 ft Percent Full 100.0 % Critical Slope 0.009043 ft/ft Velocity 4.61 ft/s Velocity Head 0.33 ft Specific Energy 1.02 ft Froude Number 0.00 Maximum 1.86 cfs Discharge Discharge Full 1.73 cfs Slope Full 0.010000 ft/ft Flow Type N/A 8 inch PVC pipe runs at 100% full, maximum discharge = 1.86 cfs Pipe-4 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.08 = 0.46 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 0.46 cfs Results Depth 0.37 ft Diameter 4 in Flow Area 0.1 ftz Wetted Perimeter 0.00 ft Top Width 0.00 ft Critical Depth 0.35 ft Percent Full 100.0 % Critical Slope 0.017287 ft/ft Velocity 4.29 ft/s Velocity Head 0.29 ft Specific Energy 0.66 ft Froude Number 0.00 Maximum OA9 cfs Discharge Discharge Full 0.46 cfs Slope Full 0.020000 ft/ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 0.49 cfs Pine-5 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.51 = 2.93 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 2.93 cfs Results Depth 0.74 ft Diameter Sin Flow Area 0.4 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.71 ft Percent Full 100.0 % Critical Slope 0.017439 ft/ft Velocity 6.82 ft/s Velocity Head 0.72 ft Specific Energy 1.46 ft Froude Number 0.00 Maximum 3.15 cfs Discharge Discharge Full Z.93 cfs Slope Full 0.020000 ft/ft Flow Type NIA 9 inch PVC pipe runs at 100% full, maximum discharge = 3.15 cfs Piae-6 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.37 = 2.13 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 tuft Discharge 2.13 cfs Results Depth 0.75 ft Diameter 8 in Flow Area 0.4 ft= Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.66 ft Percenn Full 100.0 9G Critical Slope 0.008994 ft/ft Velocity 4.86 ft/s Velocity Head 0.37 ft Specific Energy 1.11 ft Froude Number 0.00 Maxim 2.29 cfs Discharge Discharge Full 2.13 cfs Slope Full 0.010000 ft/ft Flow Type N/A 9 inch PVC pipe runs at 100% full, maximum discharge = 2.29 cfs Pine-7 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.26 = 1.50 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.50 cfs Results Depth 0.66 ft Diameter 8 in Flow Area 0.3 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.57 ft Percent Full 100.0 % Critical Slope 0.009079 ft/ft Velocity 4.45 ft/s Velocity Head 0.31 ft Specific Energy 0.96 ft Froude Number 0.00 Maximum 1.61 cfs Discharge Discharge Full 1.50 cfs Slope Full 0.010000 ft/ft Flow Type N/A 8 inch PVC pipe runs at 100% full, maximum discharge = 1.61 cfs Pipe-g Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.22 = 1.27 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.27 cfs Results Depth 0.62 ft Diameter 7 in Flow Area 0.3 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.54 ft Percent Full 100.0 % Critical Slope 0.009123 ft/ft Velocity 4.27 ft/s Velocity Head 0.28 ft Speck Energy 0.90 ft Froude Number 0.00 Maximum 1.37 cfs Discharge Discharge Full 1.27 cfs Slope Full 0.010000 ft/ft Flow Type N/A 7 inch PVC pipe runs at 100% full, maximum discharge = 1.37 cfs Pine-9 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.13 = 0.75 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.75 cfs Results Depth 0.51 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.43 ft Percent Full 100.0 % Critical Slope 0.009279 ft/ft Velocity 3.74 ft/s Velocity Head 0.22 ft Specific Energy 0.72 ft Froude Number 0.00 MaxKnum 0.81 cfs Discharge Discharge Full 0.75 cfs Slope Full 0.010000 ft/ft Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 0.81 cfs Pipe-10 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.06 = 0.35cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft!ft Discharge 0.35 cfs Results Depth 0.38 ft Diameter 5 in Flow Area 0.1 ft= Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.32 ft Percent Full 100.0 % Critical Slope 0.009558 ft/ft Velocity 3.09 ft/s Velocity Head 0.15 ft Speck Energy 0.53 ft Froude Number 0.00 Maximum 0.38 cfs Discharge Discharge Full 0.35 cfs Slope Full 0.010000 ft/ft Flow Type N/A 5 inch PVC pipe runs at 100% full, maximum discharge = 0.38 cfs Piae-11 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.19 = 1.09 cfs Input Data Mannings Coefficient 0.010 Slope 0.100000 ft/ft Discharge 1.09 cfs Results Depth 0.38 ft Diameter 5 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.38 ft Percent Full 100.0 % Critical Slope 0.096015 ft/ft Velocity 9.74 ft/s Velocity Head 1.47 ft Specific Energy 1.85 ft Froude Number 0.00 Maximum 1.17 cfs Discharge Discharge Full 1.09 cfs Slope Full 0.100000 ft/ft Flow Type N!A 5 inch PVC pipe runs at 100% full, maximum discharge = 1.17 cfs Pipe-12 Runoff calculations: 25 yr: Input Data Q = CiA = 1*5.75*0.11= 0.63 cfs Mannings Coefficient 0.010 Slope 0.030000 ft/ft Discharge 0.63 cfs Results Depth 0.39 ft Diameter Sin Flow Area 0.1 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.37 ft Percent Full 100.0 % Critical Slope 0.026510 ft/ft Velocity 5.41 ft/s Velocity Head 0.45 ft Specific Energy 0.84 ft Froude Number 0.00 Maxinwm 0.68 cfs Discharge Discharge Full 0.63 cfs Slope Full 0.030000 ft/ft Flow Type N/A 5 inch PVC pipe runs at 100% full, maximum discharge = 0.68cfs Pine-13 Runoffcalculations: 25 yr: Q = CiA = 1*5.75*0.04 = 0.23 cfs Input Data Mannings Coefficient 0.010 Slope 0.030000 ft/ft Discharge 0.23 cfs Results Depth 0.26 ft Diameter 3 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.25 ft Percent Full 100.0 % Critical Slope 0.026248 ft/ft Velocty 4.20 ft/s Velocity Head 0.27 ft Specific Energy 0.54 ft Froude Number 0.00 Maximum 0.25 cfs Discharge Discharge Full 0.23 cfs Slope Full 0.030000 ft/ft Flow Type N/A 3 inch PVC pipe runs at 100% full, maximum discharge = 0.25 cfs Pipe-14 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.28 = 1.61 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.61 cfs ResuRs Depth 0.67 ft Diameter 8 in Flow Area 0.4 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.59 ft Percent Full 100.0 % Critical Slope 0.009061 ft!ft Velocty 4.53 ft/s Velocity Head 0.32 ft Specific Energy 0.99 ft Froude Number 0.00 Maximum 1.73 cfs Discharge Discharge Full 1.61 cfs Slope Full 0.010000 ft/ft Flow Type N/A 8 inch PVC pipe rtms at 100% full, maximum discharge = 1.73 cfs Pine-15 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.83 = 4.77 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 4.77 cfs Results Depth 1.01 ft Diameter 12 in Flow Area 0.8 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.91 ft Percent Full 100.0 % Critical Slope 0.008837 ft/ft Velocity 5.94 ftls Velocity Head 0.55 ft Specific Energy 1.56 ft Froude Number 0.00 Maximum 5.13 cfs Discharge Discharge Full 4.77 cfs Slope Full 0.010000 ft!ft Flow Type N/A 12 inch PVC pipe runs at 100% full, maximum discharge = 5.13 cfs P><ne-16 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.38 = 2.19 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 2.19 cfs Results Depth 0.66 ft Diameter 8 in Flow Area 0.3 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.63 ft Percent Full 100.0 % Critical Slope 0.017402 ft/ft Velocity 6.34 ft/s Velocity Head 0.62 ft Specific Energy 1.29 ft Froude Number 0.00 Maximum 2.35 cfs Discharge Discharge Full 2.18 cfs Slope Full 0.020000 ft/ft Flow Type N/A 9 inch PVC pipe runs at 100% full, maximum discharge = 3.15 cfs Pipe-17 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.14 = 0.81 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.81 cfs Results Depth 0.52 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.45 ft Percent Full 100.0 % Critical Slope 0.009250 ft/ft Velocity 3.81 ft/s Velocity Head 0.23 ft Specific Energy 0.75 ft Froude Number 0.00 Maximum 0.87 cfs Discharge Discharge Full 0.81 cfs Slope Full 0.010000 ft!ft Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 0.87cfs Pipe-1g Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.31 = 1.78 cfs Input Data Mannings Coefficient 0.010 Slope 0.250000 ft/ft Discharge 1.78 cfs Results Depth 0.38 ft Diameter 5 in Flow Area 0.1 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.38 ft Percent Full 100.0 % Critical Slope 0.248915 ft/ft Velocity 15.52 ft/s Velocity Head 3.75 ft Specific Energy 4.13 ft Froude Number 0.00 Maxinwm 1.81 cfs Discharge Discharge Full 1.T8 cfs Slope Full 0.250000 ft/ft Flow Type N/A 5 inch PVC pipe runs at 100% full, maximum discharge = 1.91cfs Pipe-19 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.12 = 0.69 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 0.69 cfs Results Depth 0.43 ft Diameter 5 in Flow Area 0.1 ftZ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.41 ft Percent Full 100.0 9G Critical Slope 0.017302 ft/ft Velocity 4.75 ft/s Velocity Head 0.35 ft Specific Energy 0.78 ft Froude Number 0.00 Maximum 0.74 cfs Discharge Discharge Full 0.69 cfs Slope Full 0.020000 ft/ft Flow Type N/A 5 inch PVC pipe runs at 100% full, maximum discharge = 0.74cfs Pine-20 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.05 = 0.29 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 0.29 cfs ResuRs Depth 0.31 ft Diameter 4 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.29 ft Percent Full 100.0 % Critical Slope 0.017288 ft/ft Velocity 3.83 ft/s Velocty Head 0.23 ft Specific Energy 0.54 ft Froude Number 0.00 Maximum 0.31 cfs Discharge Discharge Full 0.29 cfs Slope Full 0.020000 ft/ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 0.31 cfs Pipe-Z 1 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.11 = 0.63 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 tt/ft Discharge 0.63 cfs Results Depth 0.47 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.40 ft Percent Full 100.0 % Critical Slope 0.009337 ft/ft Velocity 3.58 ft/s Velocity Head 020 ft Specific Energy 0.67 ft Froude Number 0.00 Maximum 0.68 cfs Discharge Discharge Full 0.63 cfs Slope Full 0.010000 ft/ft Flow Type N/A 6 inch PVC pipe rims at 100% full, maximum discharge = 0.68 cfs Pipe-22 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.04 = 0.23 cfs Input Data Results Mannings Coefficient 0.010 Depth 0.28 ft Slope 0.020000 ft/ft Diameter 3 in Discharge 0.23 cfs Flow Area 0.1 ftZ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.27 ft Percent Full 100.0 % Critical Slope 0.017296 ftJtt Velocity 3.61 ft/s Velocity Head 0.20 ft Specific Energy 0.49 ft Froude Number 0.00 Maximum 0.25 cfs Discharge Discharge Full 0.23 cfs Slope Full 0.020000 ft/ft Flow Type N/A 3 inch PVC pipe runs at 100% full, maximum discharge = 0.25 cfs Pipe-23 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.20 = 1.15 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.15 cfs Results Depth 0.59 ft Diameter 7 in Flow Area 0.3 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.51 ft Percent Full 100.0 Critical Slope 0.009150 ft/ft Velocty 4.16 ft/s Velocity Head 0.27 ft Specific Energy 0.86 ft Froude Number 0.00 Maximum 1.24 cfs Discharge Discharge Full 1.15 cfs Slope Full 0.010000 ft/ft Flow Type N!A 7 inch PVC pipe runs at 100% full, maximum discharge = 1.24 cfs Pipe-24 Runoff calculations: 25 yr: Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 2.30 cfs Q = CiA = 1 *5.75*0.40 = 2.30 cfs Results Depth 0.77 ft Diameter 8 in Flow Area 0.5 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.68 ft Percent Full 100.0 % Critical Slope 0.008976 ftfft Velocity 4.95 ft/s Velocity Head 0.38 ft Specific Energy 1.15 ft Froude Number 0.00 Maximum 2A7 cfs Discharge Discharge Full 2.30 cfs Slope Full 0.010000 ft!ft Flow Type N!A 9 inch PVC pipe runs at 100% full. maximum discharge = 2.47 cfs Pipe-25 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.14 = 0.81 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.81 cfs Results Depth 0.52 ft Diameter 6 in Fiow Area 0.2 ft' Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.45 ft Percent Full 100.0 % Critical Slope 0.009250 ft/ft Velocity 3.81 ft/s Velocity Head 0.23 ft Specific Energy 0.75 ft Froude Number 0.00 Maximum 0.87 cfs Discharge Discharge Full 0.81 cfs Slope Fufl 0.010000 ft/ft Flow Type N/A 6 inch PVC pipe rtms at 100% full, maximum discharge = 0.87cfs Pipe-26 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.13 = 0.75 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.75 cfs Results Depth 0.51 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.43 ft Percent Full 100.0 96 Critical Slope 0.009279 ft/ft Velocity 3.74 ft/s Velocity Head 0.22 ft Specific Energy 0.72 ft Froude Number 0.00 Maximum 0.81 cfs Discharge Discharge Full 0.75 cfs Slope Full 0.010000 ft/ft Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 0.81 cfs Pine-27 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.05 = 0.29 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.29 cfs ResuRs Depth 0.35 ft Diameter 4 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.30 ft Percent Full 100.0 % Critical Slope 0.009629 ft/ft Velocity 2.95 ft/s Velocity Head 0.14 ft Specific Energy 0.49 ft Froude Number 0.00 Maximum 0.31 cfs Discharge Discharge Full 0.29 cfs Slope Full 0.010000 ft!ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 0.31 cfs Pine-28 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.10 = 0.58 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.58 cfs ResuRs Depth 0.46 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.39 ft Percent Full 100.0 % Critical Slope 0.009365 ft/ft Velocity 3.51 ft/s Velocity Head 0.19 ft Specific Energy 0.65 ft Froude Number 0.00 Maximum 0.62 cfs Discharge Discharge Full 0.58 cfs Slope Full 0.010000 Rift Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 0.62 cfs Pipe-29 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.05 = 0.29 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.29 cfs Results Depth 0.35 ft Diameter 4 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.30 ft Percent Full 100.0 X Critical Slope 0.009629 ft/ft Velocity 2.95 ft/s Velocity Head 0.14 ft Specific Energy 0.49 ft Froude Number 0.00 Maximum 0.31 cfs Discharge Discharge Full 0.28 cfs Slope Full 0.010000 ft/ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 0.31 cf Pipe-30 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.25 = 1.44 cfs Input Data Mannings Coefficient 0.010 Slope 0.250000 ft!ft Discharge 1.44 cfs Results Depth 0.35 ft Diameter 4 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.35 ft Percent Full 100.0 X Critical Slope 0.248871 Rift Velocity 14.72 ft/s Velocity Head 3.37 ft Specific Energy 3.72 ft Froude Number 0.00 Maximum 1.55 cfs Discharge Discharge Full 1.44 cfs Slope Full 0.250000 ft/ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 1.SScfs Pipe-31 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.29 = 1.67 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.67 cfs Results Depth 0.68 ft Diameter 8 in Flow Area 0.4 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.60 ft Percent Full 100.0 % Critical Slope 0.009051 ft/ft Velocity 4.57 ft/s Velocity Head 0.32 ft Specific Energy 1.01 ft Froude Number 0.00 Maximum 1.80 cfs Discharge Discharge Full 1.67 cfs Slope Full 0.010000 ft/ft Flow Type N/A 8 inch PVC pipe runs at 100% full, maximum discharge = 1.80cfs Pipe-32 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.34 = 1.96 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.96 cfs Results Depth 0.72 ft Diameter 8 in Flow Area 0.4 ft= Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.64 ft Percent Full 100.0 % Critical Slope 0.009013 ft/it Velocity 4.76 ft/s Velocity Head 0.35 ft Specific Energy 1.08 ft Froude Number 0.00 Maximum 2.11 cfs Discharge Discharge Full 1.86 cfs Slope Full 0.010000 ft/ft Flow Type N/A 9 inch PVC pipe runs at 100% full, maximum discharge = 2.11 cfs Pine-33 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.05 = 0.29 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.29 cfs Results Depth 0.35 ft Diameter 4 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.30 ft Percent Full 100.0 % Critical Slope 0.009629 ft/ft Velocity 2.95 ft/s Velocity Head 0.14 ft Specific Energy 0.49 ft Froude Number 0.00 Maximum 0.31 cfs Discharge Discharge Full 0.28 cfs Slope Full 0.010000 ft!ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 0.31 cf Pipe-34 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.12 = 0.69 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.69 cfs Results Depth 0.49 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.42 ft Percent Full 100.0 % Critical Slope 0.009306 ft/ft Velocity 3.66 ft/s Velocity Head 0.21 ft Specific Energy 0.70 ft Froude Number 0.00 Maximum 0.74 cfs Discharge Discharge Full 0.68 cfs Slope Full 0.010000 ft/ft Flow Type NIA 6 inch PVC pipe runs at 100% full, maximum discharge = 0.74 cfs Pipe-35 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.09 = 0.52 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.52 cfs Results Depth 0.44 ft Diameter 5 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.37 ft Percent Full 100.0 % Critical Slope 0.009403 ft/ft Velocity 3.41 ft!s Velocity Head 0.18 ft Specific Energy 0.62 ft Froude Number 0.00 Maximum 0.56 cfs Discharge Discharge Full 0.52 cfs Slope Full 0.010000 ft/ft Flow Type N/A 5 inch PVC pipe runs at 100% full, maximum discharge = 0.56 cfs Pipe-36 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.08 = 0.46 cfs Input Data Mannings Coefficient 0.010 Slope 0.100000 Rift Discharge 0.46 cfs Results Depth 0.27 ft Diameter 3 in Flow Area 0.1 ftZ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.27 ft Percent Full 100.0 % Critical Slope 0.095009 Rift Velocity 7.85 tUs Velocity Head 0.96 ft Specific Energy 1.23 ft Froude Number 0.00 Maximum OA9 cfs Discharge Discharge Full OA6 cfs Slope Full 0.100000 ft/ft Flow Type N/A 3 inch PVC pipe runs at 100% full, maximum discharge = 0.49 cfs Pine-37 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.19 = 1.09 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.09 cfs Results Depth 0.58 ft Diameter Tin Flow Area 0.3 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.50 ft Percent Full 100.0 % Critical Slope 0.009165 ft/ft Velocity 4.11 ft/s Velocity Head 0.26 ft Specific Energy 0.84 ft Froude Number 0.00 Maxinwm 1.17 cfs Discharge Discharge Full 1.09 cfs Slope Full 0.010000 ftlft Flow Type N/A 7 inch PVC pipe runs at 100% full, maximum discharge = 1.17 cfs Pipe-3g Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.37 = 2.13 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 2.13 cfs Results Depth 0.75 ft Diameter 9 in Flow Area 0.4 ft~ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.66 ft Percent Full 100.0 % Critical Slope 0.008994 ft/ft Velocity 4.86 ft/s Velocity Head 0.37 ft Specific Energy 1.11 ft Froude Number 0.00 Maximum 2.29 cfs Discharge Discharge Full 2.13 cfs Slope Full 0.010000 ft/ft Flow Type N/A 9 inch PVC pipe runs at 100% full, maximum discharge = 2.29 cfs Pine-39 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.17 = 0.98 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.98 cfs Results Depth 0.56 ft Diameter 7 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.48 ft Percent Full 100.0 ',6 Critical Slope 0.009202 ft/ft Velocity 4.00 ft/s Velocity Head 0.25 ft Specific Energy 0.81 ft Froude Number 0.00 Maximum 1.05 cfs Discharge Discharge Full 0.98 cfs Slope Full 0.010000 ft/ft Flow Type N/A 7 inch PVC pipe runs at 100% full, maximum discharge = 1.05 cfs Pine-40 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.06 = 0.35 cfs Input Data Mannings Coefficient 0.010 Slope 0200000 ft/ft Discharge 0.35 cfs Results Depth 0.22 ft Diameter 3 in Flow Area 3.7e-2 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.22 ft Percent Full 100.0 76 Critical Slope 0.198847 ft/ft Velocity 9.51 ft/s Velocity Head 1.40 ft Specific Energy 1.62 ft Froude Number 0.00 Maximum 0.38 cfs Discharge Discharge Full 0.35 cfs Slope Full 0.200000 ft/ft Flow Type N/A 3 inch PVC pipe rtuis at 100% full, maximum discharge = 0.38 cfs Pipe-41 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.03 = 0.17 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.17 cfs Results Depth 0.29 ft Diameter 3 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.24 ft Percent Full 100.0 X Critical Slope 0.009860 ft/ft Velocity 2.58 ft/s Velocity Head 0.10 ft Specific Energy 0.39 ft Froude Number 0.00 Maxinwm 0.18 cfs Discharge Discharge Full 0.17 cfs Slope Full 0.010000 ft/ft Flow Type N/A 3 inch PVC pipe runs at 100% full, maximum discharge = 0.18 cfs Pipe-42 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.11 = 0.63 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.63 cfs Results Depth 0.47 ft Diameter 6 in Flow Area 0.2 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.40 ft Percent Full 100.0 '~. Critical Slope 0.009337 ft/ft Velocity 3.58 ft/s Velocity Head 0.20 ft Specify Energy 0.67 ft Froude Number 0.00 Maximum 0.68 cfs Discharge Discharge Full 0.63 cfs Slope Full 0.010000 ft/ft Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 0.68 cfs Pine-43 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.64 = 3.68 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 3.68 cfs Results Depth 0.92 ft Diameter 11 in Flow Area 0.7 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.82 ft Percent Full 100.0 % Critical Slope 0.008882 ft/ft Velocity 5.57 ft/s Velocity Head 0.48 ft Speck Energy 1.40 ft Froude Number 0.00 Maximum 3.86 cfs Discharge Discharge Full 3.68 cfs Slope Full 0.010000 ftltt Flow Type N/A 11 inch PVC pipe runs at 100% full, maximum discharge = 3.96 cfs Pine-44 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.35 = 2.01 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 2.01 cfs Results Depth 0.73 ft Diameter 8 in Flow Area 0.4 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.64 ft Percent Full 100.0 % Critical Slope 0.009007 ft/ft Velocity 4.79 ft/s Velocity Head 0.36 ft Spec Energy 1.09 ft Froude Number 0.00 Maximum 2.16 cfs Discharge Discharge Full 2.01 cfs Slope Full 0.010000 ft/ft Flow Type N/A 9 inch PVC pipe runs at 100% full, maximum discharge = 2.16 cfs Pine-45 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.30 = 1.73 cfs Input Data Mannings Coefficient 0.010 Slope 0.250000 ft/ft Discharge 1.73 cfs Results Depth 0.38 ft Diameter 5 in Flow Area 0.1 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.38 ft Percent Full 100.0 S6 Critical Slope 0.248909 ft/ft Velocity 15.41 ft/s Velocity Head 3.69 ft Specific Energy 4.07 ft Froude Number 0.00 Maximum 1.86 cfs Discharge Discharge Full 1.73 cfs Slope Full 0.250000 ftlft Flow Type N/A 5 inch PVC pipe runs at 100% full, maximum discharge = 1.86 cfs Pine-46 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.05 = 0.29 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.29 cfs Results Depth 0.35 ft Diameter 4 in Flow Area 0.1 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.30 ft Percent Full 100.0 X Critical Slope 0.009629 ft/ft Velocity 2.95 ft/s Velocity Head 0.14 ft Specific Energy 0.49 ft Froude Number 0.00 Maximum 0.31 cfs Discharge Discharge Futl 0.29 cfs Slope Full 0.010000 ft/ft Flow Type N/A 4 inch PVC pipe runs ax 100% full, maximum discharge = 0.31 cf Pipe-47 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.17 = 0.98 cfs Input Data Results Mannings Coefficient 0.010 Depth 0.49 ft Slope 0.020000 ft/ft Diameter 6 in Discharge 0.98 cfs Flow Area 0.2 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.47 ft Percent Futl 100.0 % Critical Slope 0.017325 ft/ft Velocity 5.19 ft/s Velocity Head 0.42 ft Specific Energy 0.91 ft Froude Number 0.00 Maximum 1.05 cfs Discharge Discharge Full 0.98 cfs Slope Full 0.020000 ft/ft Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 1.05 cfs Pipe-48 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.07 = 0.40 cfs Input Data Results Mannings Coefficient 0.010 Depth 0.40 ft Slope 0.010000 ft/ft Diameter 5 in Discharge 0.40 cfs Flow Area 0.1 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.34 ft Percent Full 100.0 '~ Critical Slope 0.009498 ft/ft Velocity 3.20 ft/s Velocity Head 0.16 ft Specific Energy 0.56 ft Froude Number 0.00 Maximum OA3 cfs Discharge Discharge Full OAO cfs Slope Full 0.010000 ft/ft Flow Type N/A 5 inch PVC pipe runs at 100% full, maximum discharge = 0.43 cfs Pipe-49 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.10 = 0.58 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft!ft Discharge 0.58 cfs Resuts Depth 0.46 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.39 ft Percent Full 100.0 X Critical Slope 0.009365 ftJft Velocity 3.51 ft/s Velocity Head 0.19 ft Specific Energy 0.65 ft Froude Number 0.00 Maxinwm 0.62 cfs Discharge Discharge Full 0.58 cfs Slope Full 0.010000 ft/ft Flow Type N/A 6 inch PVC pipe nuts at 100% full, maximum discharge = 0.62 cfs Pipe-50 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.52 = 2.99 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 2.99 cfs Results Depth 0.85 ft Diameter 10 in Flow Area 0.6 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.75 ft Percent Full 100.0 X Critical Slope 0.008921 ft/ft Velocity 5.29 ft/s Velocity Head 0.43 ft Specific Energy 1.28 ft Froude Number 0.00 Maximum 3.22 cfs Discharge Discharge Full 2.99 cfs Slope Full 0.010000 Rift Flow Type N!A 10 inch PVC pipe runs at 100% full, maximtun discharge = 3.22 cfs Piae-51 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.27 = 1.55 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.55 cfs ResuRs Depth 0.66 ft Diameter 8 in Flow Area 0.3 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.58 ft Percent Full 100.0 % Critical Slope 0.009070 ft/ft Velocity 4.49 ft/s Velocity Head 0.31 ft Specific Energy 0.98 ft Fronde Number 0.00 Maximum 1.67 cfs Discharge Discharge Full 1.55 cfs Slope Full 0.010000 ft/ft Flow Type N/A 8 inch PVC pipe runs at 100% full, maximum discharge = 1.67 cfs Prue-52 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.20 = 1.15cfs Input Data Mannings Coefficient 0.010 Slope 0.250000 ft/ft Discharge 1.15 cfs Results Depth 0.32 ft Diameter 4 in Flow Area 0.1 ft~ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.32 ft Percent Full 100.0 % Crfical Slope 0.248823 ft/ft Velocity 13.92 ft/s Velocity Head 3.01 ft Specific Energy 3.33 ft Fronde Number 0.00 Maximum 1.24 cfs Discharge Discharge Full 1.15 cfs Slope Full 0.250000 ft/ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 1.24 cfs Pine-53 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.05 = 0.29 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.29 cfs Results Depth 0.35 ft Diameter 4 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.30 ft Percent Full 100.0 % Crltical Slope 0.009629 ft/ft Velocity 2.95 ft/s Velocity Head 0.14 ft Specific Energy 0.49 ft Froude Number 0.00 Maximum 0.31 cfs Discharge Discharge Full 0.28 cfs Slope Full 0.010000 itift Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 0.31 cf Pipe-54 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.08 = 0.46 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 0.46 cfs Results Depth 0.37 ft Diameter 4 in Flow Area 0.1 ftz Wetted Perimeter 0.00 ft Top Width 0.00 ft Critical Depth 0.35 ft Percent Full 100.0 76 Critical Slope 0.017287 ft/ft Velocity 4.29 ft/s Velocity Head 0.29 ft Specific Energy 0.66 ft Froude Number 0.00 Maxinwm OA9 cfs Discharge Discharge Full OA6 cfs Slope Full 0.020000 ft/it Flow Type N/A 4 inch PVC pipe nuts at 100% full, maximum discharge = 0.49 cfs Pipe-55 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.03 = 0.17 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.17 cfs Results Depth 0.29 ft Diameter 3 in Flow Area 0.1 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.24 ft Percent Full 100.0 % Critical Slope 0.009860 ft/ft Velocity 2.58 ft/s Velocity Head 0.10 ft Specific Energy 0.39 ft Froude Number 0.00 Maximum 0.18 cfs Discharge Discharge Full 0.17 cfs Scope Full 0.010000 ft/ft Flow Type N/A 3 inch PVC pipe runs at 100% full, maximum discharge = 0.18 cfs Pipe-56 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.10 = 0.58 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ftlft Discharge 0.58 cfs Results Depth 0.46 ft Diameter 6 in Flow Area 0.2 ftZ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.39 ft Percent Full 100.0 % Critical Slope 0.009365 ft/ft Velocity 3.51 ft/s Velocity Head 0.19 ft Specific Energy 0.65 ft Froude Number 0.00 Maximum 0.62 cfs Discharge Discharge Full 0.58 cfs Slope Full 0.010000 ft/ft Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 0.62 cfs Pipe-57 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.05 = 0.29 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 0.29 cfs Results Depth 0.35 ft Diameter 4 in Flow Area 0.1 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.30 ft Percent Full 100.0 '/. Critical Slope 0.009629 ft/ft Velocity 2.95 ft/s Velocity Head 0.14 ft Specific Energy 0.49 ft Froude Number 0.00 Maximum 0.31 cfs Discharge Discharge Full 0.28 cfs Slope Full 0.010000 ft/ft Flow Type N/A 4 inch PVC pipe runs at 100% full, maximum discharge = 0.31 cf Pipe-5g Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.27 = 1.55 cfs Input Data Mannings Coefficient 0.010 Slope 0.030000 ft/ft Discharge 1.55 cfs Results Depth 0.54 ft Diameter 6 in Flow Area 0.2 ft2 Wetted 0.00 ft Perimeter Top 1NKtth 0.00 ft Critical Depth 0.53 ft Percent Fufl 100.0 '6 Critical Slope 0.026780 ft/ft Velocity 6.77 ft!s Velocity Head 0.71 ft Specific Energy 1.25 ft Froude Number 0.00 Maximum 1.67 cfs Discharge Discharge Full 1.55 cfs Slope Full 0.030000 ft/ft Flow Type N/A 6 inch PVC pipe runs at 100% full, maximum discharge = 1.67 cfs Pine-59 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.12 = 0.69 cfs Input Data Mannings Coefficient 0.010 Slope 0.030000 ft/ft Discharge 0.69 cfs Results Depth OAO ft Diameter 5 in Flow Area 0.1 ftZ Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.39 ft Percent Full 100.0 % Critical Slope 0.026536 ft/ft Velocity 5.53 ft/s Velocity Head 0.48 ft Specific Energy 0.87 ft Froude Number 0.00 Maximum 0.74 cfs Discharge Discharge Full 0.69 cfs Slope Full 0.030000 ft/ft Flow Type N!A 5 inch PVC pipe runs at 100% full, maximum discharge = 0.74 cfs Pipe-60 Runoff calculations: 25 yr: Q = CiA = 1 *5.75*0.22 = 1.27 cfs Input Data Mannings Coefficient 0.010 Slope 0.010000 ft/ft Discharge 1.27 cfs Results Depth 0.62 ft Diameter 7 in Flow Area 0.3 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.54 ft Percent Fult 100.0 % Critical Slope 0.009123 ft!ft Velocity 4.27 ft/s Velocity Head 0.28 ft Specific Energy 0.90 ft Froude Number 0.00 Maxirrnnim 1.37 cfs Discharge Discharge Full 1.27 cfs Slope Full 0.010000 ft/ft Flow Type N/A 7 inch PVC pipe runs at 100% full, maximum discharge = 1.37 cfs Piae-61 Runoff calculations: 25 yr: Q = CiA = 1*5.75*0.55 = 3.16 cfs Input Data Mannings Coefficient 0.010 Slope 0.020000 ft/ft Discharge 3.16 cfs Resorts Depth 0.76 ft Diameter 9 in Flow Area 0.5 ftz Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.73 ft Percent Full 100.0 % Critical Slope 0.017450 ft/ft Velocity 6.95 ft/s Velocity Head 0.75 ft Specific Energy 1.51 ft Froude Number 0.00 Maximum 3.40 cfs Discharge Discharge Fuil 3.1B cfs Slope Full 0.020000 ft/ft Flow Type N!A 9 inch PVC pipe runs at 100% full, maximum discharge = 3.40 cfs Pine-62 Runoff calculations: 25 yr: Q = CiA = 1 *5.75 *0.63 = 3.62 cfs Input Data Mannings Coefficient 0.010 Slope 0.030000 ftlft Discharge 3.62 cfs Results Depth 0.74 ft Diameter 9 in Flow Area 0.4 ft2 Wetted 0.00 ft Perimeter Top Width 0.00 ft Critical Depth 0.73 ft Percent Full 100.0 % Critical Slope 0.027000 ft/ft Velocity 8.37 ft/s Velocity Head 1.09 ft Specific Energy 1.83 ft Froude Number 0.00 Maxim 3.89 cfs Discharge Discharge Full 3.62 cfs Slope Full 0.030000 ft/ft Flow Type N/A 9 inch PVC pipe runs at 100% fuU, maximum discharge = 3.89 cfs