304 SE EVERETT MALL WAY PANERA BREAD 2025-07-25

FIGURE 5 STORM SEWER DESIGN (English Units) This spreadsheet accomplishes a storm sewer design using the rational method. Enter the data in the non-shaded areas only. Please use one spreadsheet per stormsewer run. Project Name:Panera Café#1678(Everett,WA) Designed By:ALH Project Office: Kirkland,WA Date:1/14/2013 m=Mai n=I 0.5821 Design Storm Event==In Pavement thickness(ft)=I 0.51 Pipe Thickness(inches)=I 'MI Location I Discharge Drain Design Drain Profile Remarks Drain Located On From Sta. To Sta. Source Drainage Runoff CA Sum T, Total Tc=Col. Rainfall Runoff(cis) Contrib. Total Flow Pipe Dia. Manning Pipe Slope Velocity Of Pipe Pipe Velocity Check(Desirable Pipe Capacity Check (Column Pipe Elevation Upstr.Invert Downstr. Upstr.Ground Elev. Downstr.Ground Elev. Upstr.Pipe Cover Downst,Pipe Cover Upstr.Pipe Cover Check (ft) Downstr.Pipe Cover Check of Area A Cone. (acre) CA(acre)Across Area Ba t Tc across Intensity Inflow (cfs) (cis) (in) roughness (ft/ft) Flow Capacity Minimum 3 ft/sec;Desirable 13 vs.Column 17) Length" Change(ft) Elev. (ft) Invert Elev. (ft) (ft) )ffl (ft) (ft) Drainage (acre) C (minutes) pipe length )in/hr) coefficient (ft/s) (cis) Maximum 10 ff/sec for Column 16) (ft) (ft) (minutes) DT Yard YD CB-3 DT Yard 0.02 0.20 0.00 0.00 5.0 5.0 3.07 0.01 0.00 0.01 6 0.009 0.0200 5.84 1.14 VELOCITY OK ADEQUATE PIPE CAPACITY 78 1.56 497.31 495.75 502.75 501.64 4.41 4.86 More than 2 ft of cover More than 2 ft of cover Drive-thru CB-3 CB-1 Drive Thru 0.19 0.83 0.16 0.16 5.0 5.0 3.07 0.50 0.01 0.51 8 0.009 0.0200 7.07 247 VELOCITY OK ADEQUATE PIPE CAPACITY 105 2.10 495.65 493.55 '501.64 497.44 4.80 2.70 More than 2 ft of cover More than 2 ft of cover Panera CB-2 CB-1 North Lot 0.29 0.80 0.23 0.23 5.0 5.0 3.07 0.71 0.00 0.71 8 0.009 0.0150 6.12 2.14 VELOCITY OK ADEQUATE PIPE CAPACITY 166 2.49 496.51 494.02 500.95 497.44 3.25 2.23 More than 2 ft of cover More than 2 ft of cover CB-1 SDMH-3 South Lot 0.50 0.80 0.40 0.63 5.0 5.0 3.07 1.94 3.16 5.10 15 0.014 0.0125 5.46 6.70 VELOCITY OK ADEQUATE PIPE CAPACITY 38 0.48 493.55 493.08 497.44 499.10 2.11 4.25 More than 2 ft of cover More than 2 ft of cover BayFilter IN SDMH-3 BayFilter Total Site 0.00 0.00 0.00 0.63 5.0 5.1 3.03 1.94 0.00 5.10 6 0.014 0.0200 3.75 0.74 VELOCITY OK NEED MORE CAPACITY 10 0.20 493.08 492.88 499.10 499.40 5.00 5.50 More than 2 ft of cover More than 2 ft of cover BayFilter OUT BayFilter SDMH-1 Treatment 0.00 0.00 0.00 0.63 5.0 52 3.01 1.94 0.00 5.10 4 0.014 0.0200 2.86 0.25 TRY TO INCREASE VELOCITY NEED MORE CAPACITY 10 0.20 491.88 491.68 499.40 499.70 6.66 7.16 More than 2 ft of cover More than 2 ft of cover SDMH-1 Ex SDMH-S Total Site 0.00 0.00 0.00 0.63 5.0 5.2 2.99 194 0.33 5.43 15 0.014 0.0125 5.46 67C VELOCITY OK ADEQUATE PIPE CAPACITY 10 0.13 491.68 491.55 499.70 498.20 6.25 4.87 More than 2 ft of cover More than 2 ft of cover BYPASS SDMH-3 SDMH-2 Total Site 0.00 0.00 0.00 _0.63 5.0 5.1 3.03 1.94 0.00 5.10 15 0.014 0.0150 5.98 7.34 VELOCITY OK ADEQUATE PIPE CAPACITY 14 0.21 494.21 494.00 499.10 498.84 3.12 3.07 More than 2 ft of cover More than 2 ft of cover BYPASS SDMH-2 SDMH-1 Treatment 0.00 0.00 0.00 0.63 5.0 5.2 3.01 1.94 0.33 5.43 15 0.014 0.0150 5.98 7.34 VELOCITY OK ADEQUATE PIPE CAPACITY 10 0.15 492.83 492.68 498.84 499.70 4.24 5.25 More than 2 ft of cover More than 2 ft of cover