1001 N BROADWAY EVCC 2025-10-03 - Laserfiche WebLink

PROJ: EvCC Learning Resource Center PIPE SIZING BY: MAD (Runoff by Rational Method) FILE: H:\21Cp\19\014 SAA;EvCC Learning Resource Center\Reports\Drainage Report\background\[LRC Pipe Sizing.xlsx.xls]25 YR DATE: 2/l/2021 Method:Everett SWMM 2010 CHECKED BY: M= 7.83 For Everett DATE: n= 0.582 (Pipe Capacity by Manning's Eqn.) _ LAST UPDATE: Storm: 25 YEAR NORTH SUBBASIN 0.9 0.25 Inc. Inc. Time of Rain Pipe % VelocK06 Area Area Runoff Sum Cone Intens Runoff n Diam Slope Length Capac Capac FullCapacih From To s Im ery Pervious Acre Coef. A*C A*C min in/hr cfs Value inch % feet cfs Used fUsecCheck CB 11 CB 10 24820 12000 200 0.57 0.89 0.51 0.51 6.00 2.76 1.40 0.012 12 7.86 42 10.82 1 13.78PASS CB 10 CB 9 14050 12050 2000 0.32 0.81 0.26 0.77 6.05 2.75 2.11 0.012 12 3.97 78 7.69 ?7 9.79PASS CB 9 CB 8 12200 10000 2200 0.28 0.78 0.22 1.20 6.18 2.71 3.24 0.012 18 0.59 68 8.74 17 4.95PASS CB 8 CB 7 14000 9000 5000 0.32 0.67 0.21 1.41 6.41 2.66 3.75 0.012 18 0.67 60 9.31 40 5.27PASS CB 7 CB 6 0 0 0.001 0.00 0.25 0.00 1.41 6.60 2.61 3.68 0.012 18 0.61 82 8.89 41 5.03PASS CB 6 CB 17 2200 200 2000 0.05 0.31 0.02 1.43 6.87 2.55 3.64 0.012 18 0.5 179 8.05 45 4.55 PASS CB 13 CB 9 10300 10160 200 0.24 0.89 0.21 0.21 6.00 2.76 0.58 0.012 12 0.53 57 2.81 21 3.58 0.27 PASS CB 16 CB 15 4300 3300 1000 0.10 0.75 0.07 0.07 6.00 2.76 0.20 0.012 12 2.17 23 5.69 4 7.24 0.05 PASS CB 15 CB 14 5100 4600 500 0.12 0.84 0.10 0.17 6.05 2.75 0.47 0.012 12 0.82 49 3.50 13 4.45 0.18 PASS CB 14 CB 12 0 0 0.0001 0.00 0.25 0.00 0.17 6.24 2.70 0.46 0.012 12 0.75 53 3.34 14 4.26 0.21 PASS CB 12 EX CB 9200 1 9200 0 0.21 0.90 0.19 0.36 6.44 2.65 0.96 0.012 12 4.7 36 8.37 11 10.65 1 0.06 PASS SOUTH SUBBASIN 0.9 0.25 Inc. Inc. Time of Rain Pipe % Veloc Flow Area Area Runoff Sum Cone Intens Runoff n Diam Slope Length Capac Capac Full Time Capacity From To (sf) Im ery Pervious (Acre) Coef. A*C A*C (min) (in/hr) (cfs) Value (inch) (%) (feet) (efs) Used (ft/sec) (min) Check YD 7 CB 5 4000 3726 274 0.09 0.86 0.08 0.08 6.00 2.76 0.22 0.012 6 0.67 30 0.50 44 2.53 0.20 PASS _ CB 5 CB 4 16590 16390 200 0.38 0.89 0.34 0.42 6.20 2.71 1.13 0.012 12 0.8 150 3.45 33 4.40 0.57 PASS CB 4 CB 3 16590 16390 200 0.38 0.89 0.34 0.76 6.77 2.57 1.95 0.012 12 0.51 138 2.76 71 3.51 0.66 PASS CB 3 CB 2 16590 16390 200 0.38 0.89 0.34 1.10 7.42 2.44 2.68 0.012 12 0.6 84 2.99 90 3.81 0.37 PASS CB 2 CB 1 16590 16390 200 0.38 0.89 0.34 1.44 7.79 2.37 3.41 0.012 18 0.63 64 9.03 38 5.11 0.21 PASS CB 1 EX CB 16590 16390 200 0.38 0.00 0.00 1.44 8.00 2.33 3.36 0.012 18 0.57 70 8.59 39 4.86 0.24 PASS Page 1 of 1