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Existing HydroCAD Report
1S East Site Drainage 2S Central Site Drainage 3S West Site Drainage 4S Ditch P1 Stormwater Pond P2 Hwy 212 Culvert Drainage Diagram for TCS Existing Hydrology Prepared by Carlson McCain, Printed 9/4/2014 HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Subcat Reach Pond Link TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 2HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CNDescription (subcatchment-numbers) 9.77435Brush, Fair, HSG A (1S, 2S, 3S) 4.02156Brush, Fair, HSG B (1S, 2S, 3S, 4S) 0.90676Gravel roads, HSG A (1S, 2S) 0.17179<50% Grass cover, Poor, HSG B (3S) 3.06798Paved parking & roofs (1S) 0.40798Paved roads w/curbs & sewers (4S) 18.345TOTAL AREA TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 3HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 10.680HSG A1S, 2S, 3S 4.191HSG B1S, 2S, 3S, 4S 0.000HSG C 0.000HSG D 3.474Other1S, 4S 18.345TOTAL AREA Type II 24-hr 10-year Rainfall=4.20"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 4HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Time span=0.00-30.00 hrs, dt=0.01 hrs, 3001 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=254,589 sf 52.48% Impervious Runoff Depth=1.67"Subcatchment 1S: East Site Drainage Flow Length=668' Tc=10.0 min CN=73 Runoff=15.00 cfs 0.815 af Runoff Area=79,846 sf 0.00% Impervious Runoff Depth=0.36"Subcatchment 2S: Central Site Drainage Flow Length=648' Tc=20.5 min CN=49 Runoff=0.30 cfs 0.055 af Runoff Area=403,886 sf 0.00% Impervious Runoff Depth=0.11"Subcatchment 3S: West Site Drainage Flow Length=692' Tc=18.8 min CN=41 Runoff=0.12 cfs 0.086 af Runoff Area=60,806 sf 29.17% Impervious Runoff Depth=1.33"Subcatchment 4S: Ditch Flow Length=663' Tc=19.5 min CN=68 Runoff=1.98 cfs 0.155 af Peak Elev=741.31' Storage=19,239 cf Inflow=15.06 cfs 0.955 afPond P1: Stormwater Pond Discarded=0.75 cfs 0.941 af Primary=0.00 cfs 0.000 af Outflow=0.75 cfs 0.941 af Peak Elev=738.29' Storage=36 cf Inflow=1.98 cfs 0.155 afPond P2: Hwy 212 Culvert 36.0" Round Culvert n=0.015 L=65.0' S=0.0000 '/' Outflow=1.98 cfs 0.155 af Total Runoff Area = 18.345 ac Runoff Volume = 1.110 af Average Runoff Depth = 0.73" 81.06% Pervious = 14.871 ac 18.94% Impervious = 3.474 ac Type II 24-hr 10-year Rainfall=4.20"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 5HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: East Site Drainage Runoff=15.00 cfs @ 12.02 hrs, Volume=0.815 af, Depth=1.67" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 10-year Rainfall=4.20" Area (sf)CNDescription 133,60298Paved parking & roofs 89,02735Brush, Fair, HSG A 7,65856Brush, Fair, HSG B 24,30276Gravel roads, HSG A 254,58973Weighted Average 120,98747.52% Pervious Area 133,60252.48% Impervious Area TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 4.53000.00801.11 Sheet Flow, parking lot Smooth surfaces n= 0.011 P2= 2.80" 0.5500.00801.82 Shallow Concentrated Flow, parking lot Paved Kv= 20.3 fps 1.21590.10002.21 Shallow Concentrated Flow, down hill Short Grass Pasture Kv= 7.0 fps 2.71370.01500.86 Shallow Concentrated Flow, along berm Short Grass Pasture Kv= 7.0 fps 1.1220.00230.34 Shallow Concentrated Flow, into pond Short Grass Pasture Kv= 7.0 fps 10.0668Total Summary for Subcatchment 2S: Central Site Drainage Runoff=0.30 cfs @ 12.23 hrs, Volume=0.055 af, Depth=0.36" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 10-year Rainfall=4.20" Area (sf)CNDescription 15,15776Gravel roads, HSG A 24,93956Brush, Fair, HSG B 39,75035Brush, Fair, HSG A 79,84649Weighted Average 79,846100.00% Pervious Area Type II 24-hr 10-year Rainfall=4.20"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 6HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 12.41000.01300.13 Sheet Flow, Grass: Short n= 0.150 P2= 2.80" 6.22970.01300.80 Shallow Concentrated Flow, matted grass parking lot Short Grass Pasture Kv= 7.0 fps 1.82290.08702.06 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1220.23003.36 Shallow Concentrated Flow, into pond Short Grass Pasture Kv= 7.0 fps 20.5648Total Summary for Subcatchment 3S: West Site Drainage Runoff=0.12 cfs @ 13.52 hrs, Volume=0.086 af, Depth=0.11" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 10-year Rainfall=4.20" Area (sf)CNDescription 7,43079<50% Grass cover, Poor, HSG B 99,47656Brush, Fair, HSG B 296,98035Brush, Fair, HSG A 403,88641Weighted Average 403,886100.00% Pervious Area TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 11.51000.01600.15 Sheet Flow, Grass: Short n= 0.150 P2= 2.80" 2.91550.01600.89 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 4.34120.05301.61 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1250.24003.43 Shallow Concentrated Flow, into pond Short Grass Pasture Kv= 7.0 fps 18.8692Total Summary for Subcatchment 4S: Ditch Runoff=1.98 cfs @ 12.13 hrs, Volume=0.155 af, Depth=1.33" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 10-year Rainfall=4.20" Area (sf)CNDescription 43,06656Brush, Fair, HSG B 17,74098Paved roads w/curbs & sewers 60,80668Weighted Average 43,06670.83% Pervious Area 17,74029.17% Impervious Area Type II 24-hr 10-year Rainfall=4.20"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 7HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 11.81000.03800.14 Sheet Flow, Grass: Dense n= 0.240 P2= 2.80" 7.75630.03001.21 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 19.5663Total Summary for Pond P1: Stormwater Pond Inflow Area =16.950 ac,18.10% Impervious, Inflow Depth = 0.68" for 10-year event Inflow=15.06 cfs @ 12.02 hrs, Volume=0.955 af Outflow=0.75 cfs @ 14.51 hrs, Volume=0.941 af, Atten= 95%, Lag= 148.9 min Discarded=0.75 cfs @ 14.51 hrs, Volume=0.941 af Primary=0.00 cfs @ 0.00 hrs, Volume=0.000 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 741.31' @ 14.51 hrs Surf.Area= 8,110 sf Storage= 19,239 cf Plug-Flow detention time= 322.3 min calculated for 0.941 af (98% of inflow) Center-of-Mass det. time= 313.7 min ( 1,189.4 - 875.6 ) VolumeInvertAvail.StorageStorage Description #1738.00'54,512 cf Custom Stage Data (Prismatic) Listed below ElevationSurf.AreaInc.StoreCum.Store (feet)(sq-ft)(cubic-feet)(cubic-feet) 738.003,59600 739.004,8944,2454,245 740.006,2495,5729,817 741.007,6636,95616,773 741.508,3914,01420,786 742.0010,7244,77925,565 742.5013,2715,99931,564 743.0014,1166,84738,410 744.0018,08716,10254,512 DeviceRouting InvertOutlet Devices #1Primary742.50'6.0' long x 9.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.46 2.55 2.70 2.69 2.68 2.68 2.67 2.64 2.64 2.64 2.65 2.64 2.65 2.65 2.66 2.67 2.69 #2Discarded738.00'3.970 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.75 cfs @ 14.51 hrs HW=741.31' (Free Discharge) 2=Exfiltration (Exfiltration Controls 0.75 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=738.00' (Free Discharge) 1=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type II 24-hr 10-year Rainfall=4.20"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 8HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Summary for Pond P2: Hwy 212 Culvert Inflow Area =18.345 ac,18.94% Impervious, Inflow Depth = 0.10" for 10-year event Inflow=1.98 cfs @ 12.13 hrs, Volume=0.155 af Outflow=1.98 cfs @ 12.14 hrs, Volume=0.155 af, Atten= 0%, Lag= 0.3 min Primary=1.98 cfs @ 12.14 hrs, Volume=0.155 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 738.29' @ 12.14 hrs Surf.Area= 69 sf Storage= 36 cf Plug-Flow detention time= 0.6 min calculated for 0.155 af (100% of inflow) Center-of-Mass det. time= 0.6 min ( 873.2 - 872.6 ) VolumeInvertAvail.StorageStorage Description #1737.50'7,113 cf Custom Stage Data (Prismatic) Listed below ElevationSurf.AreaInc.StoreCum.Store (feet)(sq-ft)(cubic-feet)(cubic-feet) 737.50000 738.00441111 739.001318899 740.00436284382 741.002,0911,2641,646 742.008,8435,4677,113 DeviceRouting InvertOutlet Devices #1Primary737.50'36.0" Round Culvert L= 65.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet Invert= 737.50' S= 0.0000 '/' Cc= 0.900 n= 0.015 Primary OutFlow Max=1.98 cfs @ 12.14 hrs HW=738.29' (Free Discharge) 1=Culvert (Barrel Controls 1.98 cfs @ 2.00 fps) Type II 24-hr 100-yr Rainfall=6.00"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 9HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Time span=0.00-30.00 hrs, dt=0.01 hrs, 3001 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=254,589 sf 52.48% Impervious Runoff Depth=3.09"Subcatchment 1S: East Site Drainage Flow Length=668' Tc=10.0 min CN=73 Runoff=27.82 cfs 1.504 af Runoff Area=79,846 sf 0.00% Impervious Runoff Depth=1.07"Subcatchment 2S: Central Site Drainage Flow Length=648' Tc=20.5 min CN=49 Runoff=1.65 cfs 0.164 af Runoff Area=403,886 sf 0.00% Impervious Runoff Depth=0.56"Subcatchment 3S: West Site Drainage Flow Length=692' Tc=18.8 min CN=41 Runoff=2.76 cfs 0.430 af Runoff Area=60,806 sf 29.17% Impervious Runoff Depth=2.62"Subcatchment 4S: Ditch Flow Length=663' Tc=19.5 min CN=68 Runoff=4.08 cfs 0.305 af Peak Elev=742.86' Storage=36,480 cf Inflow=29.41 cfs 2.098 afPond P1: Stormwater Pond Discarded=1.28 cfs 1.523 af Primary=3.27 cfs 0.374 af Outflow=4.54 cfs 1.897 af Peak Elev=738.62' Storage=65 cf Inflow=4.26 cfs 0.679 afPond P2: Hwy 212 Culvert 36.0" Round Culvert n=0.015 L=65.0' S=0.0000 '/' Outflow=4.26 cfs 0.679 af Total Runoff Area = 18.345 ac Runoff Volume = 2.403 af Average Runoff Depth = 1.57" 81.06% Pervious = 14.871 ac 18.94% Impervious = 3.474 ac Type II 24-hr 100-yr Rainfall=6.00"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 10HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: East Site Drainage Runoff=27.82 cfs @ 12.02 hrs, Volume=1.504 af, Depth=3.09" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.00" Area (sf)CNDescription 133,60298Paved parking & roofs 89,02735Brush, Fair, HSG A 7,65856Brush, Fair, HSG B 24,30276Gravel roads, HSG A 254,58973Weighted Average 120,98747.52% Pervious Area 133,60252.48% Impervious Area TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 4.53000.00801.11 Sheet Flow, parking lot Smooth surfaces n= 0.011 P2= 2.80" 0.5500.00801.82 Shallow Concentrated Flow, parking lot Paved Kv= 20.3 fps 1.21590.10002.21 Shallow Concentrated Flow, down hill Short Grass Pasture Kv= 7.0 fps 2.71370.01500.86 Shallow Concentrated Flow, along berm Short Grass Pasture Kv= 7.0 fps 1.1220.00230.34 Shallow Concentrated Flow, into pond Short Grass Pasture Kv= 7.0 fps 10.0668Total Summary for Subcatchment 2S: Central Site Drainage Runoff=1.65 cfs @ 12.17 hrs, Volume=0.164 af, Depth=1.07" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.00" Area (sf)CNDescription 15,15776Gravel roads, HSG A 24,93956Brush, Fair, HSG B 39,75035Brush, Fair, HSG A 79,84649Weighted Average 79,846100.00% Pervious Area Type II 24-hr 100-yr Rainfall=6.00"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 11HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 12.41000.01300.13 Sheet Flow, Grass: Short n= 0.150 P2= 2.80" 6.22970.01300.80 Shallow Concentrated Flow, matted grass parking lot Short Grass Pasture Kv= 7.0 fps 1.82290.08702.06 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1220.23003.36 Shallow Concentrated Flow, into pond Short Grass Pasture Kv= 7.0 fps 20.5648Total Summary for Subcatchment 3S: West Site Drainage Runoff=2.76 cfs @ 12.18 hrs, Volume=0.430 af, Depth=0.56" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.00" Area (sf)CNDescription 7,43079<50% Grass cover, Poor, HSG B 99,47656Brush, Fair, HSG B 296,98035Brush, Fair, HSG A 403,88641Weighted Average 403,886100.00% Pervious Area TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 11.51000.01600.15 Sheet Flow, Grass: Short n= 0.150 P2= 2.80" 2.91550.01600.89 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 4.34120.05301.61 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1250.24003.43 Shallow Concentrated Flow, into pond Short Grass Pasture Kv= 7.0 fps 18.8692Total Summary for Subcatchment 4S: Ditch Runoff=4.08 cfs @ 12.13 hrs, Volume=0.305 af, Depth=2.62" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.00" Area (sf)CNDescription 43,06656Brush, Fair, HSG B 17,74098Paved roads w/curbs & sewers 60,80668Weighted Average 43,06670.83% Pervious Area 17,74029.17% Impervious Area Type II 24-hr 100-yr Rainfall=6.00"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 12HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC TcLengthSlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec)(cfs) 11.81000.03800.14 Sheet Flow, Grass: Dense n= 0.240 P2= 2.80" 7.75630.03001.21 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 19.5663Total Summary for Pond P1: Stormwater Pond Inflow Area =16.950 ac,18.10% Impervious, Inflow Depth = 1.49" for 100-yr event Inflow=29.41 cfs @ 12.03 hrs, Volume=2.098 af Outflow=4.54 cfs @ 12.59 hrs, Volume=1.897 af, Atten= 85%, Lag= 33.9 min Discarded=1.28 cfs @ 12.59 hrs, Volume=1.523 af Primary=3.27 cfs @ 12.59 hrs, Volume=0.374 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 742.86' @ 12.59 hrs Surf.Area= 13,878 sf Storage= 36,480 cf Plug-Flow detention time= 280.3 min calculated for 1.897 af (90% of inflow) Center-of-Mass det. time= 230.6 min ( 1,093.6 - 863.1 ) VolumeInvertAvail.StorageStorage Description #1738.00'54,512 cf Custom Stage Data (Prismatic) Listed below ElevationSurf.AreaInc.StoreCum.Store (feet)(sq-ft)(cubic-feet)(cubic-feet) 738.003,59600 739.004,8944,2454,245 740.006,2495,5729,817 741.007,6636,95616,773 741.508,3914,01420,786 742.0010,7244,77925,565 742.5013,2715,99931,564 743.0014,1166,84738,410 744.0018,08716,10254,512 DeviceRouting InvertOutlet Devices #1Primary742.50'6.0' long x 9.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.46 2.55 2.70 2.69 2.68 2.68 2.67 2.64 2.64 2.64 2.65 2.64 2.65 2.65 2.66 2.67 2.69 #2Discarded738.00'3.970 in/hr Exfiltration over Surface area Discarded OutFlow Max=1.28 cfs @ 12.59 hrs HW=742.86' (Free Discharge) 2=Exfiltration (Exfiltration Controls 1.28 cfs) Primary OutFlow Max=3.27 cfs @ 12.59 hrs HW=742.86' (Free Discharge) 1=Broad-Crested Rectangular Weir (Weir Controls 3.27 cfs @ 1.52 fps) Type II 24-hr 100-yr Rainfall=6.00"TCS Existing Hydrology Printed 9/4/2014Prepared by Carlson McCain Page 13HydroCAD® 9.00 s/n 02263 © 2009 HydroCAD Software Solutions LLC Summary for Pond P2: Hwy 212 Culvert Inflow Area =18.345 ac,18.94% Impervious, Inflow Depth = 0.44" for 100-yr event Inflow=4.26 cfs @ 12.51 hrs, Volume=0.679 af Outflow=4.26 cfs @ 12.51 hrs, Volume=0.679 af, Atten= 0%, Lag= 0.2 min Primary=4.26 cfs @ 12.51 hrs, Volume=0.679 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 738.62' @ 12.51 hrs Surf.Area= 98 sf Storage= 65 cf Plug-Flow detention time= 0.4 min calculated for 0.679 af (100% of inflow) Center-of-Mass det. time= 0.4 min ( 825.1 - 824.7 ) VolumeInvertAvail.StorageStorage Description #1737.50'7,113 cf Custom Stage Data (Prismatic) Listed below ElevationSurf.AreaInc.StoreCum.Store (feet)(sq-ft)(cubic-feet)(cubic-feet) 737.50000 738.00441111 739.001318899 740.00436284382 741.002,0911,2641,646 742.008,8435,4677,113 DeviceRouting InvertOutlet Devices #1Primary737.50'36.0" Round Culvert L= 65.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet Invert= 737.50' S= 0.0000 '/' Cc= 0.900 n= 0.015 Primary OutFlow Max=4.26 cfs @ 12.51 hrs HW=738.62' (Free Discharge) 1=Culvert (Barrel Controls 4.26 cfs @ 2.62 fps)