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WPO201500038 Calculations 2015-09-11 (2)
Post Area #2 Type 1124 -hr 2 -Year Rainfall = 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCADO 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 9 Hydrograph for Subcatchment 3S: PostDev #2 to Storage System #2 Time Precip. Excess Runoff (hours) (inches) (inches) (cfs) 0.00 0.00 0.00 0.00 0.50 0.02 0.00 0.00 1.00 0.04 0.00 0.00 1.50 0.06 0.00 0.00 2.00 0.08 0.00 0.00 2.50 0.10 0.00 0.00 3.00 0.13 0.00 0.00 3.50 0.15 0.00 0.00 4.00 0.18 0.00 0.00 4.50 0.20 0.00 0.00 5.00 0.23 0.00 0.00 5.50 0.26 0.00 0.01 6.00 0.29 0.01 0.02 6.50 0.33 0.02 0.02 7.00 0.36 0.02 0.03 7.50 0.40 0.03 0.03 8.00 0.44 0.05 0.04 8.50 0.49 0.07 0.05 9.00 0.54 0.09 0.07 9.50 0.60 0.12 0.08 10.00 0.67 0.15 0.11 10.50 0.75 0.20 0.15 11.00 0.86 0.27 0.23 11.50 1.04 0.39 0.41 12.00 2.44 1.56 5.99 12.50 2.70 1.80 0.52 13.00 2.84 1.92 0.32 13.50 2.94 2.02 0.24 14.00 3.02 2.09 0.19 14.50 3.08 2.15 0.17 15.00 3.14 2.20 0.15 15.50 3.19 2.25 0.13 16.00 3.24 2.29 0.12 16.50 3.28 2.33 0.11 17.00 3.32 2.37 0.10 17.50 3.36 2.40 0.10 18.00 3.39 2.44 0.09 18.50 3.42 2.47 0.08 19.00 3.45 2.49 0.08 19.50 3.48 2.52 0.07 20.00 3.50 2.54 0.07 20.50 3.53 2.57 0.06 21.00 3.55 2.59 0.06 21.50 3.57 2.61 0.06 22.00 3.60 2.63 0.06 22.50 3.62 2.65 0.06 23.00 3.64 2.67 0.06 23.50 3.66 2.69 0.06 24.00 3.68 2.71 0.06 Post Area #2 Type// 24 -hr 2 -Year Rainfall = 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCAD® 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 10 Summary for Pond 2P: Storage System #2 Inflow Area = 1.420 ac, 69.72% Impervious, Inflow Depth > 2.71" for 2 -Year event Inflow = 6.51 cfs @ 11.97 hrs, Volume= 0.321 of Outflow = 1.45 cfs @ 12.12 hrs, Volume= 0.320 af, Atten= 78 %, Lag= 9.1 min Primary = 1.45 cfs @ 12.12 hrs, Volume= 0.320 of Routing by Stor -Ind method, Time Span= 0.00 -24.00 hrs, dt= 0.01 hrs Peak Elev= 468.40' @ 12.12 hrs Surf.Area= 0.029 ac Storage= 0.104 of Plug -Flow detention time= 26.2 min calculated for 0.320 of (100% of inflow) Center -of -Mass det. time= 25.0 min ( 818.3 - 793.4 ) Volume Invert Avail.Storage Storage Description #1 464.00' 0.185 of 96.0" D x 160.0'L Pipe Storage Device Invert Outlet Devices #1 Primary 464.00' 15.0" Round Culvert L= 78.8' CMP, projecting, no headwall, Ke= 0.900 Inlet/ Outlet Invert= 464.00'/ 462.50' S=0.0190'/' Cc= 0.900 n= 0.013 Concrete sewer w /manholes & inlets #2 Device 1 464.00' 5.0" W x 4.0" H Vert. Orifice /Grate C= 0.600 #3 Device 1 468.24' 7.0" Vert. Orifice /Grate C= 0.600 #4 Device 1 470.59' 4.0' long Sharp- Crested Rectangular Weir 2 End Contraction(s) 1.1' Crest Height Primary OutFlow Max =1.45 cfs @ 12.12 hrs HW= 468.40' (Free Discharge) t -'i= Culvert (Passes 1.45 cfs of 9.06 cfs potential flow) P34_Sharp-C = Orifice /Gr ate (Orifice Controls 1.38 cfs @ 9.90 fps) = Orifice /Grate (Orifice Controls 0.08 cfs @ 1.35 fps) rested Rectangular Weir ( Controls 0.00 cfs) Post Area #2 Type// 24 -hr 2 -Year Rainfall = 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCAD® 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC _ _ Page 11 Pond 2P: Storage System #2 Hydrograph 6.51 cfs Inflow 7 Inflow Area =1.420 ac Primary 6 Peak Elev= 468.40' 5 Storage =0.104 of .. 4 3 3 2 1.45 cfs 0 0 2 4 6 8 10 12 14 16 18 20 22 24 Time (hours) 472 471 470 M 469 v o 468 ca a 467 w 466 465 464 Pond 2P: Storage System #2 Stage- Discharge Sharp - Crested Rectangular Weir Orifice /Grate Culvert + Orifice /Grate 0 2 4 6 8 10 12 Discharge (cfs) Primary Post Area #2 Type// 24 -hr 2 -Year Rainfall= 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCADO 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 12 472 471 470 1 469 TV d 467 w 465 .• Pond 2P: Storage System #2 Stage- Area - Storage 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 Storage (acre -feet) ■ Storage Post Area #2 Type// 24 -hr 2 -Year Rainfall= 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCADO 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 13 Hydrograph for Pond 2P: Storage System #2 Time Inflow Storage Elevation Primary (hours) (cfs) (acre -feet) (feet) (cfs) 0.00 0.00 0.000 464.00 0.00 0.50 0.00 0.000 464.00 0.00 1.00 0.00 0.000 464.00 0.00 1.50 0.00 0.000 464.00 0.00 2.00 0.00 0.000 464.00 0.00 2.50 0.00 0.000 464.00 0.00 3.00 0.00 0.000 464.00 0.00 3.50 0.00 0.000 464.00 0.00 4.00 0.00 0.000 464.00 0.00 4.50 0.00 0.000 464.00 0.00 5.00 0.00 0.000 464.01 0.00 5.50 0.01 0.000 464.03 0.01 6.00 0.02 0.000 464.04 0.01 6.50 0.02 0.000 464.06 0.02 7.00 0.03 0.000 464.08 0.03 7.50 0.03 0.000 464.09 0.03 8.00 0.04 0.000 464.10 0.04 8.50 0.05 0.001 464.11 0.05 9.00 0.07 0.001 464.14 0.07 9.50 0.08 0.001 464.15 0.08 10.00 0.11 0.001 464.18 0.10 10.50 0.15 0.001 464.22 0.14 11.00 0.23 0.002 464.29 0.21 11.50 0.41 0.004 464.43 0.34 12.00 5.99 0.084 467.71 1.26 12.50 0.52 0.086 467.79 1.27 13.00 0.32 0.054 466.68 1.06 13.50 0.24 0.027 465.63 0.81 14.00 0.19 0.009 464.74 0.50 14.50 0.17 0.002 464.28 0.20 15.00 0.15 0.002 464.24 0.16 15.50 0.13 0.001 464.22 0.14 16.00 0.12 0.001 464.20 0.12 16.50 0.11 0.001 464.19 0.11 17.00 0.10 0.001 464.18 0.10 17.50 0.10 0.001 464.17 0.10 18.00 0.09 0.001 464.17 0.09 18.50 0.08 0.001 464.16 0.09 19.00 0.08 0.001 464.15 0.08 19.50 0.07 0.001 464.14 0.07 20.00 0.07 0.001 464.14 0.07 20.50 0.06 0.001 464.13 0.06 21.00 0.06 0.001 464.13 0.06 21.50 0.06 0.001 464.13 0.06 22.00 0.06 0.001 464.13 0.06 22.50 0.06 0.001 464.13 0.06 23.00 0.06 0.001 464.12 0.06 23.50 0.06 0.001 464.12 0.06 24.00 0.06 0.001 464.12 0.06 Post Area #2 Type// 24 -hr 2 -Year Rainfall = 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCADO 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 14 Elevation Primary (feet) _ (cfs) 464.00 0.00 464.04 0.01 464.08 0.03 464.12 0.06 464.16 0.09 464.20 0.12 464.24 0.16 464.28 0.20 464.32 0.24 464.36 0.28 464.40 0.32 464.44 0.34 464.48 0.37 464.52 0.39 464.56 0.42 464.60 0.44 464.64 0.46 464.68 0.48 464.72 0.50 464.76 0.51 464.80 0.53 464.84 0.55 464.88 0.56 464.92 0.58 464.96 0.59 465.00 0.61 465.04 0.62 465.08 0.64 465.12 0.65 465.16 0.67 465.20 0.68 465.24 0.69 465.28 0.70 465.32 0.72 465.36 0.73 465.40 0.74 465.44 0.75 465.48 0.77 465.52 0.78 465.56 0.79 465.60 0.80 465.64 0.81 465.68 0.82 465.72 0.83 465.76 0.84 465.80 0.85 465.84 0.86 465.88 0.88 465.92 0.89 465.96 0.90 466.00 0.91 466.04 0.92 Stage- Discharge for Pond 2P: Storage System #2 Elevation Primary (feet) (cfs) 466.08 0.92 466.12 0.93 466.16 0.94 466.20 0.95 466.24 0.96 466.28 0.97 466.32 0.98 466.36 0.99 466.40 1.00 466.44 1.01 466.48 1.02 466.52 1.03 466.56 1.03 466.60 1.04 466.64 1.05 466.68 1.06 466.72 1.07 466.76 1.08 466.80 1.09 466.84 1.09 466.88 1.10 466.92 1.11 466.96 1.12 467.00 1.13 467.04 1.13 467.08 1.14 467.12 1.15 467.16 1.16 467.20 1.16 467.24 1.17 467.28 1.18 467.32 1.19 467.36 1.19 467.40 1.20 467.44 1.21 467.48 1.22 467.52 1.22 467.56 1.23 467.60 1.24 467.64 1.25 467.68 1.25 467.72 1.26 467.76 1.27 467.80 1.27 467.84 1.28 467.88 1.29 467.92 1.30 467.96 1.30 468.00 1.31 468.04 1.32 468.08 1.32 468.12 1.33 Elevation Primary (feet) (cfs) 468.16 1.34 468.20 1.34 468.24 1.35 468.28 1.36 468.32 1.38 468.36 1.42 468.40 1.46 468.44 1.51 468.48 1.56 468.52 1.62 468.56 1.69 468.60 1.76 468.64 1.83 468.68 1.91 468.72 1.98 468.76 2.05 468.80 2.11 468.84 2.16 468.88 2.21 468.92 2.26 468.96 2.31 469.00 2.35 469.04 2.39 469.08 2.44 469.12 2.48 469.16 2.51 469.20 2.55 469.24 2.59 469.28 2.63 469.32 2.66 469.36 2.70 469.40 2.73 469.44 2.76 469.48 2.79 469.52 2.83 469.56 2.86 469.60 2.89 469.64 2.92 469.68 2.95 469.72 2.98 469.76 3.01 469.80 3.04 469.84 3.06 469.88 3.09 469.92 3.12 469.96 3.15 470.00 3.17 470.04 3.20 470.08 3.23 470.12 3.25 470.16 3.28 470.20 3.30 Elevation Primary (feet) (cfs) 470.24 3.33 470.28 3.35 470.32 3.38 470.36 3.40 470.40 3.43 470.44 3.45 470.48 3.48 470.52 3.50 470.56 3.52 470.60 3.56 470.64 3.72 470.68 3.95 470.72 4.23 470.76 4.56 470.80 4.94 470.84 5.34 470.88 5.78 470.92 6.25 470.96 6.76 471.00 7.29 471.04 7.84 471.08 8.43 471.12 9.04 471.16 9.67 471.20 10.33 471.24 11.01 471.28 11.71 471.32 12.07 471.36 12.11 471.40 12.14 471.44 12.18 471.48 12.21 471.52 12.25 471.56 12.28 471.60 12.32 471.64 12.36 471.68 12.39 471.72 12.43 471.76 12.46 471.80 12.50 471.84 12.53 471.88 12.56 471.92 12.60 471.96 12.63 472.00 12.67 Post Area #2 Type 11 24 -hr 2 -Year Rainfall = 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCAD® 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 15 Elevation Storage (feet) (acre -feet) 464.00 0.000 464.10 0.000 464.20 0.001 464.30 0.002 464.40 0.003 464.50 0.005 464.60 0.006 464.70 0.008 464.80 0.010 464.90 0.011 465.00 0.013 465.10 0.015 465.20 0.017 465.30 0.019 465.40 0.022 465.50 0.024 465.60 0.026 465.70 0.029 465.80 0.031 465.90 0.034 466.00 0.036 466.10 0.039 466.20 0.041 466.30 0.044 466.40 0.047 466.50 0.049 466.60 0.052 466.70 0.055 466.80 0.058 466.90 0.060 467.00 0.063 467.10 0.066 467.20 0.069 467.30 0.072 467.40 0.075 467.50 0.078 467.60 0.081 467.70 0.084 467.80 0.086 467.90 0.089 468.00 0.092 468.10 0.095 468.20 0.098 468.30 0.101 468.40 0.104 468.50 0.107 468.60 0.110 468.70 0.113 468.80 0.116 468.90 0.119 469.00 0.121 469.10 0.124 Stage -Area- Storage for Pond 2P: Storage System #2 Elevation Storage (feet) (acre -feet) 469.20 0.127 469.30 0.130 469.40 0.133 469.50 0.135 469.60 0.138 469.70 0.141 469.80 0.143 469.90 0.146 470.00 0.149 470.10 0.151 470.20 0.154 470.30 0.156 470.40 0.158 470.50 0.161 470.60 0.163 470.70 0.165 470.80 0.167 470.90 0.169 471.00 0.171 471.10 0.173 471.20 0.175 471.30 0.177 471.40 0.178 471.50 0.180 471.60 0.181 471.70 0.182 471.80 0.183 471.90 0.184 472.00 0.185 Post Area #2 Type// 24 -hr 2 -Year Rainfall= 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCADO 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 16 Summary for Link 3L: Outfall Inflow Area = 3.200 ac, 38.75% Impervious, Inflow Depth > 2.07" for 2 -Year event Inflow = 4.42 cfs @ 12.14 hrs, Volume= 0.551 of Primary = 4.42 cfs @ 12.14 hrs, Volume= 0.551 af, Atten= 0 %, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00 -24.00 hrs, dt= 0.01 hrs 0 3 3 0 2 if, 1 Link 3L: Outfall Hydrograph we 2 4 6 8 10 12 14 16 18 20 22 24 Time (hours) Inflow Primary Post Area #2 Type// 24 -hr 2 -Year Rainfall= 3.68" Prepared by {enter your company name here} Printed 9/10/2015 HydroCAD® 9.10 s/n 06538 @2010 HydroCAD Software Solutions LLC Page 17 Hydrograph for Link 3L: OutPall Time Inflow Elevation Primary (hours) {cfs} (feet) [cfs} 0.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.50 0.00 0.00 0.00 2.00 0.00 0.00 0.00 2.50 0.00 0.00 0.00 3.00 0.00 0.00 0.00 3.50 0.00 0.00 0.00 4.00 0.00 0.00 0.00 4.50 0.00 0.00 0.00 5.00 0.00 0.00 0.00 5.50 0.01 0.00 0.01 6.00 0.01 0.00 0.01 6.50 0.02 0.00 0.02 7.00 0.03 0.00 0.03 7.50 0.03 0.00 0.03 8.00 0.04 0.00 0.04 8.50 0.05 0.00 0.05 9.00 0.07 0.00 0.07 9.50 0.08 0.00 0.08 10.00 0.10 0.00 0.10 10.50 0.16 0.00 0.16 11.00 0.25 0.00 0.25 11.50 0.45 0.00 0.45 12.00 3.05 0.00 3.05 12.50 2.23 0.00 2.23 13.00 1.42 0.00 1.42 13.50 1.06 0.00 1.06 14.00 0.70 0.00 0.70 14.50 0.36 0.00 0.36 15.00 0.31 0.00 0.31 15.50 0.27 0.00 0.27 16.00 0.24 0.00 0.24 16.50 0.22 0.00 0.22 17.00 0.21 0.00 0.21 17.50 0.19 0.00 0.19 18.00 0.18 0.00 0.18 18.50 0.17 0.00 0.17 19.00 0.16 0.00 0.16 19.50 0.15 0.00 0.15 20.00 0.14 0.00 0.14 20.50 0.13 0.00 0.13 21.00 0.13 0.00 0.13 21.50 0.12 0.00 0.12 22.00 0.12 0.00 0.12 22.50 0.12 0.00 0.12 23.00 0.12 0.00 0.12 23.50 0.11 0.00 0.11 24.00 0.11 0.00 0.11 Post Area #2 Type// 24 -hr 10 -Year Rainfall= 5.56" Prepared by {enter your company name here} Printed 9/10/2015 HvdroCAD® 9.10 s/n 06538 © 2010 HvdroCAD Software Solutions LLC Paae 18 Time span =0.00 -24.00 hrs, dt =0.01 hrs, 2401 points Runoff by SCS TR -20 method, UH =SCS Reach routing by Stor- Ind +Trans method - Pond routing by Stor -Ind method Subcatchment 1S: PostDev #2 Unrouted Runoff Area =1.780 ac 14.04% Impervious Runoff Depth >3.08" Flow Length =380' Tc =21.0 min CN =77 Runoff =5.97 cfs 0.457 of Subcatchment 3S: PostDev #2 to Storage Runoff Area =1.420 ac 69.72% Impervious Runoff Depth >4.52" Tc =6.0 min CN =91 Runoff =10.51 cfs 0.535 of Pond 2P: Storage System #2 Peak Elev= 470.73' Storage =0.166 of Inflow =10.51 cfs 0.535 of Outflow =4.32 cfs 0.534 of Link 3L: Outfall Inflow =9.77 cfs 0.991 of Primary=9.77 cfs 0.991 of Total Runoff Area = 3.200 ac Runoff Volume = 0.992 of Average Runoff Depth = 3.72" 61.25% Pervious =1.960 ac 38.75% Impervious = 1.240 ac Post Area #2 Type 11 24 -hr 10 -Year Rainfall= 5.56" Prepared by {enter your company name here} Printed 9/10/2015 H droCAD® 9.10 s/n 06538 @2010 HvdroCAD Software Solutions LLC Page 19 Summary for Subcatchment 1 S: PostDev #2 Unrouted Runoff = 5.97 cfs @ 12.14 hrs, Volume= 0.457 af, Depth> 3.08" Runoff by SCS TR -20 method, UH =SCS, Time Span= 0.00 -24.00 hrs, dt= 0.01 hrs Type II 24 -hr 10 -Year Rainfall = 5.56" Area ac CN Description 0.250 98 Impervious 1.180 74 >75% Grass cover, Good, HSG C 0.350 70 Woods, Good, HSG C 1.780 77 Weighted Average 1.530 85.96% Pervious Area 0.250 14.04% Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft (ft/sec ) ((cfs) 15.3 80 0.0250 0.09 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.68" 5.7 300 0.0200 0.88 1.75 Channel Flow, Area= 2.0 sf Perim= 2.0' r= 1.00' n= 0.240 21.0 380 Total Subcatchment 1 S: PostDev #2 Unrouted Hydrograph 5.97 cfs 6 Type II 24 -hr 10 -Year Rainfall = 5.56" 5 Runoff Area =1.780 ac Runoff Volume =0.457 of 4 Runoff Depth >3.08" c 3 Flow Length =380' 0 Tc =21.0 min 2 CN =77 1 • 8 10 12 14 16 18 20 22 24 Time (hours) Runoff Post Area #2 Type // 24 -hr 10 -Year Rainfall = 5.56" Prepared by {enter your company name here} Printed 9/10/2015 H droCAD® 9.10 s/n 06538 @2010 H droCAD Software Solutions LLC Page 20 Hydrograph for Subcatchment 1S: PostDev #2 Unrouted Time Precip. Excess Runoff (hours) inches] {inches} cfs) 0.00 0.00 0.00 0.00 0.50 0.03 0.00 0.00 1.00 0.06 0.00 0.00 1.50 0.09 0.00 0.00 2.00 0.12 0.00 0.00 2.50 0.16 0.00 0.00 3.00 0.19 0.00 0.00 3.50 0.23 0.00 0.00 4.00 0.27 0.00 0.00 4.50 0.31 0.00 0.00 5.00 0.35 0.00 0.00 5.50 0.40 0.00 0.00 6.00 0.44 0.00 0.00 6.50 0.50 0.00 0.00 7.00 0.55 0.00 0.00 7.50 0.61 0.00 0.00 8.00 0.67 0.00 0.00 8.50 0.74 0.01 0.01 9.00 0.82 0.02 0.03 9.50 0.91 0.03 0.05 10.00 1.01 0.05 0.07 10.50 1.13 0.08 0.11 11.00 1.31 0.14 0.18 11.50 1.57 0.24 0.34 12.00 3.69 1.57 3.87 12.50 4.09 1.88 1.80 13.00 4.29 2.04 0.65 13.50 4.44 2.16 0.45 14.00 4.56 2.26 0.35 14.50 4.66 2.34 0.29 15.00 4.75 2.41 0.26 15.50 4.82 2.48 0.24 16.00 4.89 2.53 0.21 16.50 4.96 2.59 0.19 17.00 5.01 2.63 0.18 17.50 5.07 2.68 0.17 18.00 5.12 2.72 0.16 18.50 5.17 2.77 0.15 19.00 5.21 2.80 0.14 19.50 5.26 2.84 0.13 20.00 5.29 2.87 0.12 20.50 5.33 2.90 0.11 21.00 5.36 2.93 0.11 21.50 5.40 2.96 0.11 22.00 5.43 2.99 0.10 22.50 5.47 3.02 0.10 23.00 5.50 3.04 0.10 23.50 5.53 3.07 0.10 24.00 5.56 3.10 0.10 Post Area #2 Type l/ 24 -hr 10 -Year Rainfall = 5.56" Prepared by {enter your company name here} Printed 9/10/2015 H droCADU 9.10 s/n 06538 © 2010 H droCAD Software Solutions LLC Page 21 Summary for Subcatchment 3S: PostDev #2 to Storage System #2 Runoff = 10.51 cfs @ 11.97 hrs, Volume= 0.535 af, Depth> 4.52" Runoff by SCS TR -20 method, UH =SCS, Time Span= 0.00 -24.00 hrs, dt= 0.01 hrs Type II 24 -hr 10 -Year Rainfall= 5.56" Area (ac) CN Description 0.990 98 Paved parking, HSG B 0.430 74 >75% Grass cover, Good, HSG C 1.420 91 Weighted Average 0.430 30.28% Pervious Area 0.990 69.72% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft_/ft_ (ft/sec) (cfs) 6.0 Direct Entry, 11 10 9 8 7 3 6- 0 5. U- 4 3 2 1 0 0 Subcatchment 3S: PostDev #2 to Storage System #2 Hydrograph 10.51 cfs I I 10 Runoff Type II 24 -hr 10 -Year Rainfall = 5.56" Runoff Area =1.420 ac Runoff Volume =0.535 of Runoff Depth >4.52" Tc =6.0 min CN =91 2 4 6 8 10 12 14 16 18 20 22 24 Time (hours) Post Area #2 Type // 24 -hr 10 -Year Rainfall = 5.56" Prepared by {enter your company name here} Printed 9/10/2015 H droCADO 9.10 s/n 06538 © 2010 H droCAD Software Solutions LLC Page 22 Hydrograph for Subcatchment 3S: PostDev #2 to Storage System #2 Time Precip. Excess Runoff hours) (inches) (inches) (cfs) 0.00 0.00 0.00 0.00 0.50 0.03 0.00 0.00 1.00 0.06 0.00 0.00 1.50 0.09 0.00 0.00 2.00 0.12 0.00 0.00 2.50 0.16 0.00 0.00 3.00 0.19 0.00 0.00 3.50 0.23 0.00 0.00 4.00 0.27 0.00 0.01 4.50 0.31 0.01 0.02 5.00 0.35 0.02 0.03 5.50 0.40 0.03 0.04 6.00 0.44 0.05 0.05 6.50 0.50 0.07 0.06 7.00 0.55 0.09 0.07 7.50 0.61 0.12 0.08 8.00 0.67 0.15 0.09 8.50 0.74 0.19 0.12 9.00 0.82 0.24 0.15 9.50 0.91 0.30 0.17 10.00 1.01 0.36 0.21 10.50 1.13 0.46 0.29 11.00 1.31 0.59 0.42 11.50 1.57 0.80 0.72 12.00 3.69 2.72 9.62 12.50 4.09 3.10 0.82 13.00 4.29 3.30 0.50 13.50 4.44 3.44 0.38 14.00 4.56 3.56 0.30 14.50 4.66 3.65 0.26 15.00 4.75 3.74 0.24 15.50 4.82 3.81 0.21 16.00 4.89 3.88 0.18 16.50 4.96 3.94 0.17 17.00 5.01 4.00 0.16 17.50 5.07 4.05 0.15 18.00 5.12 4.10 0.14 18.50 5.17 4.15 0.13 19.00 5.21 4.19 0.12 19.50 5.26 4.23 0.11 20.00 5.29 4.27 0.10 20.50 5.33 4.30 0.10 21.00 5.36 4.34 0.10 21.50 5.40 4.37 0.10 22.00 5.43 4.40 0.09 22.50 5.47 4.43 0.09 23.00 5.50 4.47 0.09 23.50 5.53 4.50 0.09 24.00 5.56 4.53 0.09 Post Area #2 Type// 24 -hr 10 -Year Rainfall = 5.56" Prepared by {enter your company name here} Printed 9/10/2015 HydroCAD® 9.10 -s /n 06538 © 2010 HydroCAD Software Solutions LLC Page 23 Summary for Pond 2P: Storage System #2 Inflow Area = 1.420 ac, 69.72% Impervious, Inflow Depth > 4.52" for 10 -Year event Inflow = 10.51 cfs @ 11.97 hrs, Volume= 0.535 of Outflow = 4.32 cfs @ 12.07 hrs, Volume= 0.534 af, Atten= 59 %, Lag= 6.2 min Primary = 4.32 cfs @ 12.07 hrs, Volume= 0.534 of Routing by Stor -Ind method, Time Span= 0.00 -24.00 hrs, dt= 0.01 hrs Peak Elev= 470.73'@ 12.07 hrs Surf.Area= 0.021 ac Storage= 0.166 of Plug -Flow detention time= 25.8 min calculated for 0.534 of (100% of inflow Center -of -Mass det. time= 24.7 min ( 804.1 - 779.3 ) Volume Invert Avail.Storaoe Storaae Description #1 464.00' 0.185 of 96.0" D x 160.0'L Pipe Storage Device Routing Invert Outlet Devices #1 Primary 464.00' 15.0" Round Culvert L= 78.8' CMP, projecting, no headwall, Ke= 0.900 Inlet/ Outlet Invert= 464.00'/ 462.50' S=0.0190'/' Cc= 0.900 n= 0.013 Concrete sewer w /manholes & inlets #2 Device 1 464.00' 5.0" W x 4.0" H Vert. Orifice /Grate C= 0.600 #3 Device 1 468.24' 7.0" Vert. Orifice /Grate C= 0.600 #4 Device 1 470.59' 4.0' long Sharp- Crested Rectangular Weir 2 End Contraction (s) 1.1' Crest Height Primary OutFlow Max =4.29 cfs @ 12.07 hrs HW= 470.73' (Free Discharge) L1= Culvert (Passes 4.29 cfs of 11.52 cfs potential flow) P34_Sharp-C = Orifice /Gr ate (Orifice Controls 1.71 cfs @ 12.33 fps) =Orifce /Grate (Orifice Controls 1.91 cfs @ 7.14 fps) rested Rectangular Weir (Weir Controls 0.67 cfs @ 1.23 fps) Post Area #2 Type 11 24 -hr 10 -Year Rainfall = 5.56" Prepared by {enter your company name here} Printed 9/10/2015 HydroCADO 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 24 Pond 2P: Storage System #2 Hydrograph 1 1 v 3 0 0 2 4 6 8 10 12 14 16 18 20 22 24 Time (hours) 472 471 470 469 v o 468 R a 467 w 466 465 464 Pond 2P: Storage System #2 Stage- Discharge Sharp - Crested Rectangular Weir Orifice!Grate Culvert + OrificeiGrate 0 2 4 6 8 10 12 Discharge (cfs) Inflow Primary Primary Post Area #2 Type // 24 -hr 10 -Year Rainfall= 5.56" Prepared by {enter your company name here} Printed 9/10/2015 HvdroCAD® 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 25 472 471 470 469 C 468 d 467 n 465 MM Pond 2P: Storage System #2 Stage- Area - Storage 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 Storage (acre -feet) Storage Post Area #2 Type// 24 -hr 10 -Year Rainfall= 5.56" Prepared by {enter your company name here} Printed 9/10/2015 HydroCADO 9.10 s/n 06538 © 2010 HXdroCAD Software Solutions LLC _ Page 26 Hydrograph for Pond 2P: Storage System #2 Time hours) Inflow (cfs) Storage (acre -feet) Elevation (feet) Primary (cfs) 0.00 0.00 0.000 464.00 0.00 0.50 0.00 0.000 464.00 0.00 1.00 0.00 0.000 464.00 0.00 1.50 0.00 0.000 464.00 0.00 2.00 0.00 0.000 464.00 0.00 2.50 0.00 0.000 464.00 0.00 3.00 0.00 0.000 464.00 0.00 3.50 0.00 0.000 464.01 0.00 4.00 0.01 0.000 464.03 0.01 4.50 0.02 0.000 464.06 0.02 5.00 0.03 0.000 464.08 0.03 5.50 0.04 0.000 464.10 0.04 6.00 0.05 0.001 464.11 0.05 6.50 0.06 0.001 464.12 0.06 7.00 0.07 0.001 464.14 0.07 7.50 0.08 0.001 464.15 0.08 8.00 0.09 0.001 464.16 0.09 8.50 0.12 0.001 464.19 0.11 9.00 0.15 0.001 464.22 0.14 9.50 0.17 0.002 464.25 0.16 10.00 0.21 0.002 464.28 0.20 10.50 0.29 0.003 464.34 0.26 11.00 0.42 0.004 464.47 0.36 11.50 0.72 0.009 464.79 0.52 12.00 9.62 0.146 469.89 3.10 12.50 0.82 0.113 468.72 1.98 13.00 0.50 0.081 467.61 1.24 13.50 0.38 0.052 466.59 1.04 14.00 0.30 0.027 465.64 0.81 14.50 0.26 0.010 464.85 0.55 15.00 0.24 0.003 464.39 0.31 15.50 0.21 0.002 464.30 0.22 16.00 0.18 0.002 464.27 0.19 16.50 0.17 0.002 464.25 0.17 17.00 0.16 0.002 464.25 0.16 17.50 0.15 0.002 464.24 0.15 18.00 0.14 0.001 464.22 0.14 18.50 0.13 0.001 464.21 0.13 19.00 0.12 0.001 464.20 0.12 19.50 0.11 0.001 464.19 0.11 20.00 0.10 0.001 464.18 0.10 20.50 0.10 0.001 464.18 0.10 21.00 0.10 0.001 464.17 0.10 21.50 0.10 0.001 464.17 0.10 22.00 0.09 0.001 464.17 0.09 22.50 0.09 0.001 464.17 0.09 23.00 0.09 0.001 464.17 0.09 23.50 0.09 0.001 464.16 0.09 24.00 0.09 0.001 464.16 0.09 Post Area #2 Type// 24 -hr 10 -Year Rainfall= 5.56" Prepared by {enter your company name here} Printed 9/10/2015 H droCADO 9.10 s/n 06538 © 2010 H droCAD Software Solutions LLC Page 27 Elevation Primary (feet) (cfs) 464.00 0.00 464.04 0.01 464.08 0.03 464.12 0.06 464.16 0.09 464.20 0.12 464.24 0.16 464.28 0.20 464.32 0.24 464.36 0.28 464.40 0.32 464.44 0.34 464.48 0.37 464.52 0.39 464.56 0.42 464.60 0.44 464.64 0.46 464.68 0.48 464.72 0.50 464.76 0.51 464.80 0.53 464.84 0.55 464.88 0.56 464.92 0.58 464.96 0.59 465.00 0.61 465.04 0.62 465.08 0.64 465.12 0.65 465.16 0.67 465.20 0.68 465.24 0.69 465.28 0.70 465.32 0.72 465.36 0.73 465.40 0.74 465.44 0.75 465.48 0.77 465.52 0.78 465.56 0.79 465.60 0.80 465.64 0.81 465.68 0.82 465.72 0.83 465.76 0.84 465.80 0.85 465.84 0.86 465.88 0.88 465.92 0.89 465.96 0.90 466.00 0.91 466.04 0.92 Stage- Discharge for Pond 2P: Storage System #2 Elevation Primary (feet) (cfs) 466.08 0.92 466.12 0.93 466.16 0.94 466.20 0.95 466.24 0.96 466.28 0.97 466.32 0.98 466.36 0.99 466.40 1.00 466.44 1.01 466.48 1.02 466.52 1.03 466.56 1.03 466.60 1.04 466.64 1.05 466.68 1.06 466.72 1.07 466.76 1.08 466.80 1.09 466.84 1.09 466.88 1.10 466.92 1.11 466.96 1.12 467.00 1.13 467.04 1.13 467.08 1.14 467.12 1.15 467.16 1.16 467.20 1.16 467.24 1.17 467.28 1 18 467.32 1.19 467.36 1.19 467.40 1.20 467.44 1.21 467.48 1.22 467.52 1.22 467.56 1.23 467.60 1.24 467.64 1.25 467.68 1,25 467.72 1.26 467.76 1.27 467.80 1.27 467.84 1.28 467.88 1.29 467.92 1.30 467.96 1.30 468.00 1.31 468.04 1.32 468.08 1.32 468.12 1.33 Elevation Primary (feet) (cfs) 468.16 1.34 468.20 1.34 468.24 1.35 468.28 1.36 468.32 1.38 468.36 1.42 468.40 1.46 468.44 1.51 468.48 1.56 468.52 1.62 468.56 1.69 468.60 1.76 468.64 1.83 468.68 1.91 468.72 1.98 468.76 2.05 468.80 2.11 468.84 2.16 468.88 2.21 468.92 2.26 468.96 2.31 469.00 2.35 469.04 2.39 469.08 2.44 469.12 2.48 469.16 2.51 469.20 2.55 469.24 2.59 469.28 2.63 469.32 2.66 469.36 2.70 469.40 2.73 469.44 2.76 469.48 2.79 469.52 2.83 469.56 2.86 469.60 2.89 469.64 2.92 469.68 2.95 469.72 2.98 469.76 3.01 469.80 3.04 469.84 3.06 469.88 3.09 469.92 3.12 469.96 3.15 470.00 3.17 470.04 3.20 470.08 3.23 470.12 3.25 470.16 3.28 470.20 3.30 Elevation Primary (feet) (cfs) 470.24 3.33 470.28 3.35 470.32 3.38 470.36 3.40 470.40 3.43 470.44 3.45 470.48 3.48 470.52 3.50 470.56 3.52 470.60 3.56 470.64 3.72 470.68 3.95 470.72 4.23 470.76 4.56 470.80 4.94 470.84 5.34 470.88 5.78 470.92 6.25 470.96 6.76 471.00 7.29 471.04 7.84 471.08 8.43 471.12 9.04 471.16 9.67 471.20 10.33 471.24 11.01 471.28 11.71 471.32 12.07 471.36 12.11 471.40 12.14 471.44 12.18 471.48 12.21 471.52 12.25 471.56 12.28 471.60 12.32 471.64 12.36 471.68 12.39 471.72 12.43 471.76 12.46 471.80 12.50 471.84 12.53 471.88 12.56 471.92 12.60 471.96 12.63 472.00 12.67 Post Area #2 Type // 24 -hr 10 -Year Rainfall = 5.56" Prepared by {enter your company name here} Printed 9/10/2015 H droCAD® 9.10 s/n 06538 @2010 H droCAD Software Solutions LLC Page 28 Stage -Area- Storage for Pond 2P: Storage System #2 Elevation Storage (feet) (acre -feet) 464.00 0.000 464.10 0.000 464.20 0.001 464.30 0.002 464.40 0.003 464.50 0.005 464.60 0.006 464.70 0.008 464.80 0.010 464.90 0.011 465.00 0.013 465.10 0.015 465.20 0.017 465.30 0.019 465.40 0.022 465.50 0.024 465.60 0.026 465.70 0.029 465.80 0.031 465.90 0.034 466.00 0.036 466.10 0.039 466.20 0.041 466.30 0.044 466.40 0.047 466.50 0.049 466.60 0.052 466.70 0.055 466.80 0.058 466.90 0.060 467.00 0.063 467.10 0.066 467.20 0.069 467.30 0.072 467.40 0.075 467.50 0.078 467.60 0.081 467.70 0.084 467.80 0.086 467.90 0.089 468.00 0.092 468.10 0.095 468.20 0.098 468.30 0.101 468.40 0.104 468.50 0.107 468.60 0.110 468.70 0.113 468.80 0.116 468.90 0.119 469.00 0.121 469.10 0.124 Elevation Storage (feet) (acre -feet) 469.20 0.127 469.30 0.130 469.40 0.133 469.50 0.135 469.60 0.138 469.70 0.141 469.80 0.143 469.90 0.146 470.00 0.149 470.10 0.151 470.20 0.154 470.30 0.156 470.40 0.158 470.50 0.161 470.60 0.163 470.70 0.165 470.80 0.167 470.90 0.169 471.00 0.171 471.10 0.173 471.20 0.175 471.30 0.177 471.40 0.178 471.50 0.180 471.60 0.181 471.70 0.182 471.80 0.183 471.90 0.184 472.00 0.185 Post Area #2 Type 11 24 -hr 10 -Year Rainfall= 5.56" Prepared by {enter your company name here} Printed 9/10/2015 H droCAD® 9.10 s/n 06538 © 2010 H droCAD Software Solutions LLC Page 29 Summary for Link 3L: Outfall Inflow Area = 3.200 ac, 38.75% Impervious, Inflow Depth > 3.72" for 10 -Year event Inflow = 9.77 cfs @ 12.08 hrs, Volume= 0.991 of Primary = 9.77 cfs @ 12.08 hrs, Volume= 0.991 af, Atten= 0 %, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00 -24.00 hrs, dt= 0.01 hrs 10 9 8 N 7 w v 6 _0 5 4 3 2 1 0 Link 3L: Outfall Hydrograph 0 2 4 6 8 10 12 14 16 18 20 22 24 Time (hours) Inflow ■ Primary Post Area #2 Type// 24 -hr 10 -Year Rainfall= 5.56" Prepared by {enter your company name here} Printed 9/10/2015 HydroCAD® 9.10 s/n 06538 © 2010 HydroCAD Software Solutions LLC Page 30 Hydrograph for Link 3L: OutFall Time Inflow Elevation Primary (hours) (cfs) (feet) (cfs) 0.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.50 0.00 0.00 0.00 2.00 0.00 0.00 0.00 2.50 0.00 0.00 0.00 3.00 0.00 0.00 0.00 3.50 0.00 0.00 0.00 4.00 0.01 0.00 0.01 4.50 0.02 0.00 0.02 5.00 0.03 0.00 0.03 5.50 0.04 0.00 0.04 6.00 0.05 0.00 0.05 6.50 0.06 0.00 0.06 7.00 0.07 0.00 0.07 7.50 0.08 0.00 0.08 8.00 0.09 0.00 0.09 8.50 0.13 0.00 0.13 9.00 0.17 0.00 0.17 9.50 0.21 0.00 0.21 10.00 0.27 0.00 0.27 10.50 0.37 0.00 0.37 11.00 0.54 0.00 0.54 11.50 0.86 0.00 0.86 12.00 6.97 0.00 6.97 12.50 3.77 0.00 3.77 13.00 1.89 0.00 1.89 13.50 1.49 0.00 1.49 14.00 1.16 0.00 1.16 14.50 0.84 0.00 0.84 15.00 0.57 0.00 0.57 15.50 0.46 0.00 0.46 16.00 0.40 0.00 0.40 16.50 0.36 0.00 0.36 17.00 0.34 0.00 0.34 17.50 0.32 0.00 0.32 18.00 0.30 0.00 0.30 18.50 0.28 0.00 0.28 19.00 0.26 0.00 0.26 19.50 0.24 0.00 0.24 20.00 0.22 0.00 0.22 20.50 0.21 0.00 0.21 21.00 0.21 0.00 0.21 21.50 0.20 0.00 0.20 22.00 0.20 0.00 0.20 22.50 0.19 0.00 0.19 23.00 0.19 0.00 0.19 23.50 0.19 0.00 0.19 24.00 0.18 0.00 0.18