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HomeMy WebLinkAbout2016-08-30 Applicant (HAF) Ltr to TPC Forwarding Additional Information ARCHITECTSHM. August 30, 2016 Scott D. Richards City Planning Consultant to the City of Oak Park Heights The Planning Company LLC RE: Oak Park Heights—Oak Ridge Place—Conditional Use Permit for Memory Care and Assisted Living, Variances for Setbacks and Building Height—6060 Oxboro Avenue North Per your request in the letter sent August 24,2016 regarding the checks for the fees,a list of changes since the approvals granted in April of 2015, permits or correspondence from the Minnesota Department of Transportation related to drainage flows off the site and drainage calculations,we have submitted these items last Friday,August 26, 2016.They were hand delivered to the Oak Park Heights office to the receptionist for Julie Hultman. Sincerely, A to VAMP' OF Michael G. Hoefler, NCARB HAF Architects, LLC 232 MAIN 5TREET SC7UT1i, STiE.L'd,'ATER, MN 55082 PH 65'-35 N 1 760 FAX: 65 -z sO..r;'80 NW'V.HAIARC H'rEC.1S.Cr" GROUPHAF. ARCHITECTURE DEVELOPMENT CONSTRUCTION August 25,2016 Project: Oak Ridge Memory Care 6060 Oxboro Avenue North RE:Oak Park Heights—Oak Ridge Place—Conditional Use Permit For Memory Care and Assisted Living,Variances for Setbacks and Building Height—6060 Oxboro Avenue North Date August 25, 2016 As requested in the letter dated August 24th, 2016 bullet number 2 asks, "Please provide a list of any changes that have been made to the plans following the approvals granted in April of 2015". I am informing you that there have been no changes made to the Architectural Plans since April of 2015. 233 MAIN STREET SOUTH, STILLWATER, MN 55082 PH: 651-351-1760 FAX: 651-430-0180 W W W.HAFARCHITECTS.COM 2S ID 2S /3ND --D 2P 1S AA 1P (Subca Reach Pon iii Routing Diagram for EXISTING DRAINAGE-OAK RIDGE MEMORY CARE Prepared by{enter your company name here}, Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 2 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=6.180 ac 31.88% Impervious Runoff Depth=0.15" Flow Length=1,085' Slope=0.1200 'I' Tc=18.8 min CN=56 Runoff=0.24 cfs 0.079 af Subcatchment 2S: Runoff Area=0.540 ac 35.19% Impervious Runoff Depth=0.22" Flow Length=335' Slope=0.0450 'I' Tc=11.1 min CN=59 Runoff=0.08 cfs 0.010 af Subcatchment 2S ID: Runoff Area=0.350 ac 100.00% Impervious Runoff Depth=2.52" Flow Length=335' Slope=0.0450 '/' Tc=3.0 min CN=98 Runoff=1.49 cfs 0.073 af Pond 1 P: Peak Elev=867.22' Storage=0.001 af Inflow=1.49 cfs 0.163 af 24.0" Round Culvert n=0.013 L=52.0' S=0.0263 '/' Outflow=1.48 cfs 0.163 af Pond 2P: Peak Elev=877.42' Inflow=1.49 cfs 0.084 af 18.0" Round Culvert n=0.025 L=46.0' S=0.1574'/' Outflow=1.49 cfs 0.084 af Pond 3P: Peak Elev=880.60' Storage=0.000 af Inflow=1.49 cfs 0.084 af Outflow=1.49 cfs 0.084 af Total Runoff Area=7.070 ac Runoff Volume=0.163 of Average Runoff Depth =0.28" 64.50%Pervious=4.560 ac 35.50%Impervious=2.510 ac EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment 1S: Runoff = 0.24 cfs @ 12.26 hrs, Volume= 0.079 af, Depth= 0.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75% Grass cover, Good, HSG A OFFSITE 0.530 98 Paved parking, HSG A 0.850 30 Woods, Good, HSG A 1.610 39 >75% Grass cover, Good, HSG A 6.180 56 Weighted Average 4.210 68.12% Pervious Area 1.970 31.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.8 1,085 0.1200 0.96 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 0.08 cfs @ 12.08 hrs, Volume= 0.010 af, Depth= 0.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area (ac) CN Description 0.190 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.300 39 >75%Grass cover, Good, HSG A 0.540 59 Weighted Average 0.350 64.81% Pervious Area 0.190 35.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 335 0.0450 0.50 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 1.49 cfs @ 11.93 hrs, Volume= 0.073 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 4 Area (ac) CN Description 0.350 98 Paved parking, HSG A 0.350 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 335 0.0450 1.89 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 35.50% Impervious, Inflow Depth = 0.28" for 2YR event Inflow = 1.49 cfs @ 11.94 hrs, Volume= 0.163 of Outflow = 1.48 cfs @ 11.94 hrs, Volume= 0.163 af, Atten= 1%, Lag= 0.4 min Primary = 1.48 cfs @ 11.94 hrs, Volume= 0.163 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 867.22' @ 11.94 hrs Surf.Area= 0.003 ac Storage= 0.001 af Plug-Flow detention time= 1.3 min calculated for 0.163 of (100%of inflow) Center-of-Mass det. time= 1.1 min (885.7 - 884.6 ) Volume Invert Avail.Storage Storage Description #1 866.72' 1.460 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 866.72 0.001 0.000 0.000 868.00 0.006 0.004 0.004 870.00 0.010 0.016 0.020 872.00 0.030 0.040 0.060 874.00 0.080 0.110 0.170 876.00 0.150 0.230 0.400 878.00 0.260 0.410 0.810 880.00 0.390 0.650 1.460 Device Routing Invert Outlet Devices #1 Primary 866.72' 24.0" Round Culvert L= 52.0' Ke= 0.500 Inlet/Outlet Invert= 866.72'/865.35' S= 0.0263 '1 Cc= 0.900 n= 0.013, Flow Area= 3.14 sf rimary OutFlow Max=1.48 cfs @ 11.94 hrs HW=867.22' (Free Discharge) 1=Culvert (Inlet Controls 1.48 cfs @ 2.41 fps) Summary for Pond 2P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 1.13" for 2YR event Inflow = 1.49 cfs @ 11.94 hrs, Volume= 0.084 af Outflow = 1.49 cfs @ 11.94 hrs, Volume= 0.084 af, Atten= 0%, Lag= 0.0 min Primary = 1.49 cfs @ 11.94 hrs, Volume= 0.084 af EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 5 Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 877.42' @ 11.94 hrs Device Routing Invert Outlet Devices #1 Primary 876.87' 18.0" Round Culvert L= 46.0' Ke= 0.500 Inlet/Outlet Invert= 876.87'/869.63' S= 0.1574 '/' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 1.77 sf primary OutFlow Max=1.49 cfs @ 11.94 hrs HW=877.42' TW=867.22' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.49 cfs @ 2.53 fps) Summary for Pond 3P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 1.13" for 2YR event Inflow = 1.49 cfs @ 11.93 hrs, Volume= 0.084 af Outflow = 1.49 cfs @ 11.94 hrs, Volume= 0.084 af, Atten= 0%, Lag= 0.2 min Primary = 1.49 cfs @ 11.94 hrs, Volume= 0.084 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 880.60' @ 11.94 hrs Surf.Area= 0.004 ac Storage= 0.000 af Plug-Flow detention time= 0.2 min calculated for 0.083 of (100%of inflow) Center-of-Mass det. time= 0.2 min ( 778.0 - 777.8 ) Volume Invert Avail.Storage Storage Description #1 880.47' 0.031 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.47 0.001 0.000 0.000 882.00 0.040 0.031 0.031 Device Routing Invert Outlet Devices #1 Primary 880.47' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads rimary OutFlow Max=1.49 cfs @ 11.94 hrs HW=880.60' TW=877.42' (Dynamic Tailwater) 1=Orifice/Grate (Weir Controls 1.49 cfs @ 1.17 fps) EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 11 24-hr 10YR Rainfall=4.15" Prepared by {enter your company name here) Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 6 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=6.180 ac 31.88% Impervious Runoff Depth=0.64" Flow Length=1,085' Slope=0.1200 'I' Tc=18.8 min CN=56 Runoff=3.23 cfs 0.328 af Subcatchment 2S: Runoff Area=0.540 ac 35.19% Impervious Runoff Depth=0.78" Flow Length=335' Slope=0.0450 '/' Tc=11.1 min CN=59 Runoff=0.54 cfs 0.035 af Subcatchment 2S ID: Runoff Area=0.350 ac 100.00% Impervious Runoff Depth=3.91" Flow Length=335' Slope=0.0450 '/' Tc=3.0 min CN=98 Runoff=2.26 cfs 0.114 af Pond 1P: Peak Elev=867.55' Storage=0.002 af Inflow=3.84 cfs 0.478 af 24.0" Round Culvert n=0.013 L=52.0' S=0.0263 'I' Outflow=3.83 cfs 0.478 af Pond 2P: Peak EIev=877.60' Inflow=2.49 cfs 0.149 af 18.0" Round Culvert n=0.025 L=46.0' S=0.1574'I' Outflow=2.49 cfs 0.149 af Pond 3P: Peak Elev=880.65' Storage=0.001 af Inflow=2.49 cfs 0.149 af Outflow=2.49 cfs 0.149 af Total Runoff Area=7.070 ac Runoff Volume=0.478 of Average Runoff Depth =0.81" 64.50%Pervious=4.560 ac 35.50%Impervious=2.510 ac EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 sin 00744 ©2014 HydroCAD Software Solutions LLC Page 7 Summary for Subcatchment 1S: Runoff = 3.23 cfs @ 12.16 hrs, Volume= 0.328 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.530 98 Paved parking, HSG A 0.850 30 Woods, Good, HSG A 1.610 39 >75% Grass cover, Good, HSG A 6.180 56 Weighted Average 4.210 68.12% Pervious Area 1.970 31.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.8 1,085 0.1200 0.96 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 0.54 cfs @ 12.05 hrs, Volume= 0.035 af, Depth= 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area (ac) CN Description 0.190 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.300 39 >75% Grass cover, Good, HSG A 0.540 59 Weighted Average 0.350 64.81% Pervious Area 0.190 35.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 335 0.0450 0.50 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 2.26 cfs @ 11.93 hrs, Volume= 0.114 af, Depth= 3.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD©10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 8 Area (ac) CN Description 0.350 98 Paved parking, HSG A 0.350 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 335 0.0450 1.89 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 35.50% Impervious, Inflow Depth = 0.81" for 10YR event Inflow = 3.84 cfs @ 12.14 hrs, Volume= 0.478 of Outflow = 3.83 cfs @ 12.14 hrs, Volume= 0.478 af, Atten= 0%, Lag= 0.3 min Primary = 3.83 cfs © 12.14 hrs, Volume= 0.478 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 867.55' @ 12.14 hrs Surf.Area= 0.004 ac Storage= 0.002 of Plug-Flow detention time= 0.7 min calculated for 0.478 of (100%of inflow) Center-of-Mass det. time= 0.7 min ( 875.9 - 875.2 ) Volume Invert Avail.Storage Storage Description #1 866.72' 1.460 of Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 866.72 0.001 0.000 0.000 868.00 0.006 0.004 0.004 870.00 0.010 0.016 0.020 872.00 0.030 0.040 0.060 874.00 0.080 0.110 0.170 876.00 0.150 0.230 0.400 878.00 0.260 0.410 0.810 880.00 0.390 0.650 1.460 Device Routing Invert Outlet Devices #1 Primary 866.72' 24.0" Round Culvert L= 52.0' Ke= 0.500 Inlet/Outlet Invert= 866.72'/865.35' S= 0.0263 '/ Cc= 0.900 n= 0.013, Flow Area= 3.14 sf rimary OutFlow Max=3.83 cfs @ 12.14 hrs HW=867.55' (Free Discharge) 1=Culvert (Inlet Controls 3.83 cfs @ 3.10 fps) Summary for Pond 2P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 2.02" for 10YR event Inflow = 2.49 cfs © 11.94 hrs, Volume= 0.149 of Outflow = 2.49 cfs @ 11.94 hrs, Volume= 0.149 af, Atten= 0%, Lag= 0.0 min Primary = 2.49 cfs @ 11.94 hrs, Volume= 0.149 af EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 9 Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 877.60' @ 11.94 hrs Device Routing Invert Outlet Devices #1 Primary 876.87' 18.0" Round Culvert L= 46.0' Ke= 0.500 Inlet/Outlet Invert= 876.87'/869.63' S= 0.1574 '/' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 1.77 sf primary OutFlow Max=2.48 cfs @ 11.94 hrs HW=877.60' TW=867.42' (Dynamic Tailwater) 1=Culvert (Inlet Controls 2.48 cfs @ 2.91 fps) Summary for Pond 3P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 2.02" for 10YR event Inflow = 2.49 cfs @ 11.94 hrs, Volume= 0.149 of Outflow = 2.49 cfs © 11.94 hrs, Volume= 0.149 af, Atten= 0%, Lag= 0.2 min Primary = 2.49 cfs @ 11.94 hrs, Volume= 0.149 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 880.65' @ 11.94 hrs Surf.Area= 0.006 ac Storage= 0.001 of Plug-Flow detention time= 0.2 min calculated for 0.149 of (100% of inflow) Center-of-Mass det. time= 0.2 min ( 780.7 - 780.5 ) Volume Invert Avail.Storage Storage Description #1 880.47' 0.031 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.47 0.001 0.000 0.000 882.00 0.040 0.031 0.031 Device Routing Invert Outlet Devices #1 Primary 880.47' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads rimary OutFlow Max=2.48 cfs @ 11.94 hrs HW=880.65' TW=877.60' (Dynamic Tailwater) 1=Orifice/Grate (Weir Controls 2.48 cfs @ 1.38 fps) EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 10 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=6.180 ac 31.88% Impervious Runoff Depth=1.54" Flow Length=1,085' Slope=0.1200 '/' Tc=18.8 min CN=56 Runoff=9.89 cfs 0.792 af Subcatchment 2S: Runoff Area=0.540 ac 35.19% Impervious Runoff Depth=1.78" Flow Length=335' Slope=0.0450 '/' Tc=11.1 min CN=59 Runoff=1.37 cfs 0.080 af Subcatchment 2S ID: Runoff Area=0.350 ac 100.00% Impervious Runoff Depth=5.66" Flow Length=335' Slope=0.0450 'P Tc=3.0 min CN=98 Runoff=3.23 cfs 0.165 af Pond 1 P: Peak Elev=868.28' Storage=0.006 af Inflow=11.22 cfs 1.037 af 24.0" Round Culvert n=0.013 L=52.0' S=0.0263 '/' Outflow=11.21 cfs 1.037 af Pond 2P: Peak Elev=877.83' Inflow=4.02 cfs 0.245 af 18.0" Round Culvert n=0.025 L=46.0' S=0.1574'/' Outflow=4.02 cfs 0.245 af Pond 3P: Peak Elev=880.72' Storage=0.001 af Inflow=4.02 cfs 0.245 af Outflow=4.02 cfs 0.245 af Total Runoff Area= 7.070 ac Runoff Volume= 1.037 of Average Runoff Depth = 1.76" 64.50% Pervious=4.560 ac 35.50%Impervious=2.510 ac EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 11 Summary for Subcatchment 1S: Runoff = 9.89 cfs @ 12.13 hrs, Volume= 0.792 af, Depth= 1.54" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.530 98 Paved parking, HSG A 0.850 30 Woods, Good, HSG A 1.610 39 >75% Grass cover, Good, HSG A 6.180 56 Weighted Average 4.210 68.12% Pervious Area 1.970 31.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.8 1,085 0.1200 0.96 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 1.37 cfs @ 12.04 hrs, Volume= 0.080 af, Depth= 1.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description 0.190 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.300 39 >75%Grass cover, Good, HSG A 0.540 59 Weighted Average 0.350 64.81% Pervious Area 0.190 35.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 335 0.0450 0.50 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 3.23 cfs @ 11.93 hrs, Volume= 0.165 af, Depth= 5.66" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 12 Area (ac) CN Description 0.350 98 Paved parking, HSG A 0.350 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 335 0.0450 1.89 Lag/CN Method, Summary for Pond 1 P: Inflow Area = 7.070 ac, 35.50% Impervious, Inflow Depth = 1.76" for 100YR event Inflow = 11.22 cfs @ 12.12 hrs, Volume= 1.037 of Outflow = 11.21 cfs @ 12.13 hrs, Volume= 1.037 af, Atten= 0%, Lag= 0.4 min Primary = 11.21 cfs @ 12.13 hrs, Volume= 1.037 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 868.28' @ 12.13 hrs Surf.Area= 0.007 ac Storage= 0.006 af Plug-Flow detention time= 0.6 min calculated for 1.037 of (100%of inflow) Center-of-Mass det. time= 0.6 min ( 860.2 - 859.7 ) Volume Invert Avail.Storage Storage Description #1 866.72' 1.460 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 866.72 0.001 0.000 0.000 868.00 0.006 0.004 0.004 870.00 0.010 0.016 0.020 872.00 0.030 0.040 0.060 874.00 0.080 0.110 0.170 876.00 0.150 0.230 0.400 878.00 0.260 0.410 0.810 880.00 0.390 0.650 1.460 Device Routing Invert Outlet Devices #1 Primary 866.72' 24.0" Round Culvert L= 52.0' Ke= 0.500 Inlet/Outlet Invert= 866.72'/865.35' S= 0.0263 '/' Cc= 0.900 n= 0.013, Flow Area= 3.14 sf rimary OutFlow Max=11.20 cfs @ 12.13 hrs HW=868.28' (Free Discharge) 1=Culvert (Inlet Controls 11.20 cfs @ 4.26 fps) Summary for Pond 2P: Inflow Area = 0.890 ac, 60.67% Impervious, Inflow Depth = 3.30" for 100YR event Inflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af Outflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af, Atten= 0%, Lag= 0.0 min Primary = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type l/24-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD® 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 13 Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 877.83' @ 11.94 hrs Device Routing Invert Outlet Devices #1 Primary 876.87' 18.0" Round Culvert L= 46.0' Ke= 0.500 Inlet/Outlet Invert= 876.87'/869.63' S= 0.1574 7' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 1.77 sf rimary OutFlow Max=4.01 cfs @ 11.94 hrs HW=877.83' TW=867.89' (Dynamic Tailwater) 1=Culvert (Inlet Controls 4.01 cfs @ 3.34 fps) Summary for Pond 3P: Inflow Area = 0.890 ac, 60.67% Impervious, Inflow Depth = 3.30" for 100YR event Inflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af Outflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af, Atten= 0%, Lag= 0.2 min Primary = 4.02 cfs @ 11.94 hrs, Volume= 0.245 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 880.72' @ 11.94 hrs Surf.Area= 0.007 ac Storage= 0.001 af Plug-Flow detention time= 0.2 min calculated for 0.245 of (100%of inflow) Center-of-Mass det. time= 0.2 min ( 780.9 - 780.7 ) Volume Invert Avail.Storage Storage Description #1 880.47' 0.031 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.47 0.001 0.000 0.000 882.00 0.040 0.031 0.031 Device Routing Invert Outlet Devices #1 Primary 880.47' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads rimary OutFlow Max=4.01 cfs @ 11.94 hrs HW=880.72' TW=877.83' (Dynamic Tailwater) 1=Orifice/Grate (Weir Controls 4.01 cfs @ 1.62 fps) 2S ID \2S/„, < SW> \I %ND Ak ------i> /3ND N. N. N N Nz 1P 0--........-.....---------------37 �' Subcat Reach Pon L Routing Diagram for PROPOSED DRAINAGE-OAK RIDGE MEMORY CARE 2-05-15 Prepared by{enter your company name here}, Printed 2/5/2015 HydroCADO 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC 1 PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 2 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=0.540 ac 0.00% Impervious Runoff Depth=0.00" Flow Length=270' Slope=0.2700'/' Tc=6.4 min CN=39 Runoff=0.00 cfs 0.000 af Subcatchment 1SW: Runoff Area=4.490 ac 39.64% Impervious Runoff Depth=0.28" Flow Length=910' Slope=0.1350'/' Tc=13.5 min CN=61 Runoff=0.90 cfs 0.103 af Subcatchment 2S: Runoff Area=1.200 ac 50.83% Impervious Runoff Depth=0.54" Flow Length=440' Slope=0.0350 '/' Tc=12.1 min CN=69 Runoff=0.79 cfs 0.054 af Subcatchment 2S ID: Runoff Area=0.840 ac 100.00% Impervious Runoff Depth=2.52" Flow Length=440' Slope=0.0350 '/' Tc=4.2 min CN=98 Runoff=3.44 cfs 0.176 af Pond 1 P: Peak Elev=871.98' Storage=1,138 cf Inflow=2.95 cfs 0.218 af Outflow=1.48 cfs 0.218 af Pond 1SWP: Peak Elev=881.11' Storage=4 cf Inflow=0.90 cfs 0.103 af Primary=0.90 cfs 0.103 af Secondary=0.00 cfs 0.000 af Outflow=0.90 cfs 0.103 af Pond 2P: Peak Elev=880.37' Storage=0.001 af Inflow=3.82 cfs 0.230 af Outflow=3.82 cfs 0.230 af Pond 3P: Peak Elev=874.30' Storage=0.071 af Inflow=3.96 cfs 0.333 af Discarded=0.04 cfs 0.115 af Primary=2.95 cfs 0.218 af Outflow=2.99 cfs 0.333 af Total Runoff Area=7.070 ac Runoff Volume= 0.333 af Average Runoff Depth =0.57" 54.31%Pervious= 3.840 ac 45.69%Impervious= 3.230 ac PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment 1S: Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area (ac) CN Description 0.540 39 >75% Grass cover, Good, HSG A 0.540 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 270 0.2700 0.70 Lag/CN Method, Summary for Subcatchment 1SW: Runoff = 0.90 cfs @ 12.11 hrs, Volume= 0.103 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.340 98 Paved parking, HSG A 0.220 30 Woods, Good, HSG A 0.740 39 >75% Grass cover, Good, HSG A 4.490 61 Weighted Average 2.710 60.36% Pervious Area 1.780 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.5 910 0.1350 1.12 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 0.79 cfs @ 12.06 hrs, Volume= 0.054 af, Depth= 0.54" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 4 Area (ac) CN Description 0.610 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.540 39 >75% Grass cover, Good, HSG A 1.200 69 Weighted Average 0.590 49.17% Pervious Area 0.610 50.83% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.1 440 0.0350 0.61 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 3.44 cfs @ 11.95 hrs, Volume= 0.176 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area (ac) CN Description 0.840 98 Paved parking, HSG A 0.840 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.2 440 0.0350 1.76 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 45.69% Impervious, Inflow Depth = 0.37" for 2YR event Inflow = 2.95 cfs @ 12.03 hrs, Volume= 0.218 of Outflow = 1.48 cfs @ 12.27 hrs, Volume= 0.218 af, Atten= 50%, Lag= 13.8 min Primary = 1.48 cfs @ 12.27 hrs, Volume= 0.218 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 871.98' @ 12.27 hrs Surf.Area= 626 sf Storage= 1,138 cf Plug-Flow detention time= 4.5 min calculated for 0.218 of (100%of inflow) Center-of-Mass det. time= 4.2 min ( 878.4 - 874.2 ) Volume Invert Avail.Storage Storage Description #1 866.30' 6,940 cf Custom Stage Data(Prismatic) Listed below (Recalc) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type 1124-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD® 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 5 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 866.30 12 0 0 866.50 15 3 3 868.00 55 53 55 870.00 205 260 315 872.00 630 835 1,150 874.00 1,245 1,875 3,025 876.00 2,670 3,915 6,940 Device Routing Invert Outlet Devices #1 Device 2 875.10' 60.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 866.30' 12.0" Round Culvert L= 38.0' Ke= 0.500 Inlet/Outlet Invert= 866.30'/865.35' S= 0.0250 '1 Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Device 2 866.30' 4.9"Vert. Orifice/Grate C= 0.600 #4 Device 2 872.00' 6.5"Vert. Orifice/Grate C= 0.600 #5 Device 2 875.10' 5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 0.5' Crest Height primary OutFlow Max=1.48 cfs © 12.27 hrs HW=871.98' (Free Discharge) T- =Culvert (Passes 1.48 cfs of 8.61 cfs potential flow) 1=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate (Orifice Controls 1.48 cfs @ 11.27 fps) =Orifice/Grate ( Controls 0.00 cfs) 5=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 1SWP: Inflow Area = 4.490 ac, 39.64% Impervious, Inflow Depth = 0.28" for 2YR event Inflow = 0.90 cfs © 12.11 hrs, Volume= 0.103 af Outflow = 0.90 cfs @ 12.11 hrs, Volume= 0.103 af, Atten= 0%, Lag= 0.1 min Primary = 0.90 cfs @ 12.11 hrs, Volume= 0.103 af Secondary= 0.00 cfs © 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 881.11' @ 12.11 hrs Surf.Area= 67 sf Storage= 4 cf Plug-Flow detention time= 0.1 min calculated for 0.103 af (100%of inflow) Center-of-Mass det. time= 0.1 min ( 944.2 - 944.2 ) Volume Invert Avail.Storage Storage Description #1 881.00' 3,687 cf Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.00 4 0 0 882.00 555 280 280 883.00 1,595 1,075 1,355 884.00 3,070 2,333 3,687 PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type l/24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCADO 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 6 Device Routing Invert Outlet Devices #1 Device 2 881.00' 27.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 878.00' 12.0" Round Culvert L. 111.0' Ke= 0.500 Inlet/Outlet Invert= 878.00'/876.89' S= 0.0100 '/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Secondary 883.75' 15.0' long x 2.0' 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 Coef. (English) 2.54 2.61 2.61 2.60 2.66 2.70 2.77 2.89 2.88 2.85 3.07 3.20 3.32 =rimary OutFlow Max=0.90 cfs @ 12.11 hrs HW=881.11' TW=874.24' (Dynamic Tailwater) Culvert (Passes 0.90 cfs of 5.07 cfs potential flow) 1_Orifice/Grate (Weir Controls 0.90 cfs © 1.11 fps) §econdary OutFlow Max=0.00 cfs @ 0.00 hrs HW=881.00' TW=866.30' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 2P: Inflow Area= 2.040 ac, 71.08% Impervious, Inflow Depth = 1.36" for 2YR event Inflow = 3.82 cfs @ 11.95 hrs, Volume= 0.230 af Outflow = 3.82 cfs @ 11.96 hrs, Volume= 0.230 af, Atten= 0%, Lag= 0.2 min Primary = 3.82 cfs © 11.96 hrs, Volume= 0.230 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 880.37' @ 11.96 hrs Surf.Area= 0.008 ac Storage= 0.001 af Plug-Flow detention time= 0.2 min calculated for 0.230 af (100%of inflow) Center-of-Mass det. time= 0.2 min ( 787.6 - 787.4) Volume Invert Avail.Storage Storage Description #1 880.13' 0.079 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.13 0.001 0.000 0.000 880.80 0.020 0.007 0.007 882.00 0.100 0.072 0.079 Device Routing Invert Outlet Devices #1 Primary 880.13' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads rimary OutFlow Max=3.81 cfs @ 11.96 hrs HW=880.37' TW=874.08' (Dynamic Tailwater) 1=Orifice/Grate (Weir Controls 3.81 cfs @ 1.60 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD® 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 7 Summary for Pond 3P: Inflow Area = 6.530 ac, 49.46% Impervious, Inflow Depth = 0.61" for 2YR event Inflow = 3.96 cfs @ 11.96 hrs, Volume= 0.333 af Outflow = 2.99 cfs @ 12.03 hrs, Volume= 0.333 af, Atten= 24%, Lag= 4.3 min Discarded = 0.04 cfs @ 12.03 hrs, Volume= 0.115 af Primary = 2.95 cfs @ 12.03 hrs, Volume= 0.218 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 874.30' @ 12.03 hrs Surf.Area= 0.050 ac Storage= 0.071 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 187.6 min ( 1,023.5 -836.0 ) Volume Invert Avail.Storage Storage Description #1 872.50' 0.057 af ADS N-12 48 @ 200.00' L Inside#2 Inside= 47.7"W x 47.7"H => 12.40 sf x 200.00'L= 2,480.0 cf Outside= 54.0"W x 54.0"H => 14.85 sf x 200.00'L = 2,969.8 cf #2 871.25' 0.108 af Custom Stage Data(Prismatic) Listed below (Recalc) 0.337 af Overall - 0.068 af Embedded = 0.269 af x 40.0% Voids 0.165 af Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 871.25 0.050 0.000 0.000 872.50 0.050 0.062 0.062 878.00 0.050 0.275 0.337 Device Routing Invert Outlet Devices #1 Primary 873.50' 18.0" Round Culvert L= 30.0' Ke= 0.500 Inlet/Outlet Invert= 873.50'/871.00' S= 0.0833 '1 Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Discarded 871.25' 0.800 in/hr Exfiltration over Surface area above 871.24' Conductivity to Groundwater Elevation = 0.00' Excluded Surface area= 0.000 ac piscarded OutFlow Max=0.04 cfs @ 12.03 hrs HW=874.30' (Free Discharge) 2=Exfiltration ( Controls 0.04 cfs) rimary OutFlow Max=2.94 cfs @ 12.03 hrs HW=874.30' TW=870.56' (Dynamic Tailwater) 1=Culvert (Inlet Controls 2.94 cfs @ 3.05 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD® 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 8 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=0.540 ac 0.00% Impervious Runoff Depth=0.06" Flow Length=270' Slope=0.2700 '/' Tc=6.4 min CN=39 Runoff=0.00 cfs 0.003 af Subcatchment 1SW: Runoff Area=4.490 ac 39.64% Impervious Runoff Depth=0.89" Flow Length=910' Slope=0.1350 'I Tc=13.5 min CN=61 Runoff=4.76 cfs 0.333 af Subcatchment 2S: Runoff Area=1.200 ac 50.83% Impervious Runoff Depth=1.37" Flow Length=440' Slope=0.0350 '/' Tc=12.1 min CN=69 Runoff=2.28 cfs 0.137 af Subcatchment 2S ID: Runoff Area=0.840 ac 100.00% Impervious Runoff Depth=3.91" Flow Length=440' Slope=0.0350 'P Tc=4.2 min CN=98 Runoff=5.24 cfs 0.274 af Pond 1 P: Peak Elev=875.07' Storage=4,757 cf Inflow=8.38 cfs 0.624 af Outflow=3.70 cfs 0.624 af Pond 1SWP: Peak Elev=881.35' Storage=35 cf Inflow=4.76 cfs 0.333 af Primary=4.76 cfs 0.333 af Secondary=0.00 cfs 0.000 af Outflow=4.76 cfs 0.333 af Pond 2P: Peak Elev=880.48' Storage=0.002 af Inflow=6.69 cfs 0.411 af Outflow=6.68 cfs 0.411 af Pond 3P: Peak EIev=875.30' Storage=0.102 af Inflow=9.48 cfs 0.744 af Discarded=0.04 cfs 0.122 af Primary=8.38 cfs 0.621 af Outflow=8.42 cfs 0.744 af Total Runoff Area=7.070 ac Runoff Volume=0.746 of Average Runoff Depth = 1.27" 54.31%Pervious=3.840 ac 45.69%Impervious=3.230 ac PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 9 Summary for Subcatchment 1S: Runoff = 0.00 cfs @ 15.38 hrs, Volume= 0.003 af, Depth= 0.06" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area (ac) CN Description 0.540 39 >75% Grass cover, Good, HSG A 0.540 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 270 0.2700 0.70 Lag/CN Method, Summary for Subcatchment 1 SW: Runoff = 4.76 cfs @ 12.07 hrs, Volume= 0.333 af, Depth= 0.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75% Grass cover, Good, HSG A OFFSITE 0.340 98 Paved parking, HSG A 0.220 30 Woods, Good, HSG A 0.740 39 >75%Grass cover, Good, HSG A 4.490 61 Weighted Average 2.710 60.36% Pervious Area 1.780 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.5 910 0.1350 1.12 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 2.28 cfs @ 12.05 hrs, Volume= 0.137 af, Depth= 1.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 10 Area (ac) CN Description 0.610 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.540 39 >75% Grass cover, Good, HSG A 1.200 69 Weighted Average 0.590 49.17% Pervious Area 0.610 50.83% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.1 440 0.0350 0.61 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 5.24 cfs @ 11.95 hrs, Volume= 0.274 af, Depth= 3.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area (ac) CN Description 0.840 98 Paved parking, HSG A 0.840 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.2 440 0.0350 1.76 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 45.69% Impervious, Inflow Depth = 1.06" for 10YR event Inflow = 8.38 cfs @ 12.06 hrs, Volume= 0.624 af Outflow = 3.70 cfs @ 12.26 hrs, Volume= 0.624 af, Atten= 56%, Lag= 11.5 min Primary = 3.70 cfs @ 12.26 hrs, Volume= 0.624 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 875.07' @ 12.26 hrs Surf.Area= 2,005 sf Storage= 4,757 cf Plug-Flow detention time= 9.8 min calculated for 0.624 af (100% of inflow) Center-of-Mass det. time= 9.8 min ( 871.4 - 861.7 ) Volume Invert Avail.Storage Storage Description #1 866.30' 6,940 cf Custom Stage Data(Prismatic) Listed below (Recalc) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD©10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 11 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 866.30 12 0 0 866.50 15 3 3 868.00 55 53 55 870.00 205 260 315 872.00 630 835 1,150 874.00 1,245 1,875 3,025 876.00 2,670 3,915 6,940 Device Routing Invert Outlet Devices #1 Device 2 875.10' 60.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 866.30' 12.0" Round Culvert L= 38.0' Ke= 0.500 Inlet/Outlet Invert= 866.30'/865.35' S= 0.0250 '/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Device 2 866.30' 4.9"Veil. Orifice/Grate C= 0.600 #4 Device 2 872.00' 6.5"Vert. Orifice/Grate C= 0.600 #5 Device 2 875.10' 5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 0.5' Crest Height ♦Primary OutFlow Max=3.70 cfs @ 12.26 hrs HW=875.07' (Free Discharge) T-- =Culvert (Passes 3.70 cfs of 10.87 cfs potential flow) 1=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate (Orifice Controls 1.84 cfs @ 14.09 fps) =Orifice/Grate (Orifice Controls 1.85 cfs @ 8.05 fps) 5=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 1SWP: Inflow Area= 4.490 ac, 39.64% Impervious, Inflow Depth = 0.89" for 10YR event Inflow = 4.76 cfs @ 12.07 hrs, Volume= 0.333 of Outflow = 4.76 cfs @ 12.08 hrs, Volume= 0.333 af, Atten= 0%, Lag= 0.2 min Primary = 4.76 cfs @ 12.08 hrs, Volume= 0.333 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 881.35' @ 12.08 hrs Surf.Area= 196 sf Storage= 35 cf Plug-Flow detention time= 0.1 min calculated for 0.333 af (100% of inflow) Center-of-Mass det. time= 0.1 min ( 891.4 - 891.3 ) Volume Invert Avail.Storage Storage Description #1 881.00' 3,687 cf Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.00 4 0 0 882.00 555 280 280 883.00 1,595 1,075 1,355 884.00 3,070 2,333 3,687 PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 12 Device Routing Invert Outlet Devices #1 Device 2 881.00' 27.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 878.00' 12.0" Round Culvert L= 111.0' Ke= 0.500 Inlet/Outlet Invert= 878.00'/876.89' S= 0.0100 '/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Secondary 883.75' 15.0' long x 2.0' 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 Coef. (English) 2.54 2.61 2.61 2.60 2.66 2.70 2.77 2.89 2.88 2.85 3.07 3.20 3.32 Primary OutFlow Max=4.75 cfs @ 12.08 hrs HW=881.35' TW=875.22' (Dynamic Tailwater) =Culvert (Passes 4.75 cfs of 5.25 cfs potential flow) 1=Orifice/Grate (Weir Controls 4.75 cfs @ 1.93 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=881.00' TW=866.30' (Dynamic Tailwater) T-3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 2P: Inflow Area = 2.040 ac, 71.08% Impervious, Inflow Depth = 2.41" for 10YR event Inflow = 6.69 cfs @ 11.96 hrs, Volume= 0.411 af Outflow = 6.68 cfs @ 11.96 hrs, Volume= 0.411 af, Atten= 0%, Lag= 0.3 min Primary = 6.68 cfs @ 11.96 hrs, Volume= 0.411 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 880.48' @ 11.96 hrs Surf.Area= 0.011 ac Storage= 0.002 af Plug-Flow detention time= 0.2 min calculated for 0.411 af (100% of inflow) Center-of-Mass det. time= 0.2 min ( 785.0 - 784.8 ) Volume Invert Avail.Storage Storage Description #1 880.13' 0.079 of Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.13 0.001 0.000 0.000 880.80 0.020 0.007 0.007 882.00 0.100 0.072 0.079 Device Routing Invert Outlet Devices #1 Primary 880.13' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads rimary OutFlow Max=6.67 cfs @ 11.96 hrs HW=880.48' TW=874.87' (Dynamic Tailwater) 1=Orifice/Grate (Weir Controls 6.67 cfs @ 1.92 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Paoe 13 Summary for Pond 3P: Inflow Area = 6.530 ac, 49.46% Impervious, Inflow Depth = 1.37" for 10YR event Inflow = 9.48 cfs @ 12.00 hrs, Volume= 0.744 of Outflow = 8.42 cfs @ 12.06 hrs, Volume= 0.744 af, Atten= 11%, Lag= 4.0 min Discarded = 0.04 cfs @ 12.18 hrs, Volume= 0.122 of Primary = 8.38 cfs @ 12.06 hrs, Volume= 0.621 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 875.30' @ 12.18 hrs Surf.Area= 0.050 ac Storage= 0.102 of Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 93.3 min ( 925.9 - 832.6 ) Volume Invert Avail.Storage Storage Description #1 872.50' 0.057 of ADS N-12 48 @ 200.00' L Inside#2 Inside= 47.7"W x 47.7"H => 12.40 sf x 200.00'L= 2,480.0 cf Outside= 54.0"W x 54.0"H => 14.85 sf x 200.00'L= 2,969.8 cf #2 871.25' 0.108 of Custom Stage Data(Prismatic) Listed below (Recalc) 0.337 of Overall - 0.068 of Embedded = 0.269 of x 40.0%Voids 0.165 of Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 871.25 0.050 0.000 0.000 872.50 0.050 0.062 0.062 878.00 0.050 0.275 0.337 Device Routing Invert Outlet Devices #1 Primary 873.50' 18.0" Round Culvert L= 30.0' Ke= 0.500 Inlet/Outlet Invert= 873.50'/871.00' S= 0.0833 '1 Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Discarded 871.25' 0.800 in/hr Exfiltration over Surface area above 871.24' Conductivity to Groundwater Elevation = 0.00' Excluded Surface area= 0.000 ac Qiscarded OutFlow Max=0.04 cfs @ 12.18 hrs HW=875.30' (Free Discharge) 2=Exfiltration ( Controls 0.04 cfs) rimary OutFlow Max=8.38 cfs @ 12.06 hrs HW=875.22' TW=874.23' (Dynamic Tailwater) 1=Culvert (Inlet Controls 8.38 cfs @ 4.74 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCADO 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 14 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=0.540 ac 0.00% Impervious Runoff Depth=0.42" Flow Length=270' Slope=0.2700'/' Tc=6.4 min CN=39 Runoff=0.16 cfs 0.019 af Subcatchment 1SW: Runoff Area=4.490 ac 39.64% Impervious Runoff Depth=1.94" Flow Length=910' Slope=0.1350 'P Tc=13.5 min CN=61 Runoff=11.48 cfs 0.725 af Subcatchment 2S: Runoff Area=1.200 ac 50.83% Impervious Runoff Depth=2.63" Flow Length=440' Slope=0.0350 'P Tc=12.1 min CN=69 Runoff=4.51 cfs 0.263 af Subcatchment 2S ID: Runoff Area=0.840 ac 100.00% Impervious Runoff Depth=5.66" Flow Length=440' Slope=0.0350 'I' Tc=4.2 min CN=98 Runoff=7.48 cfs 0.396 af Pond 1 P: Peak Elev=875.51' Storage=5,728 cf Inflow=12.35 cfs 1.278 af Outflow=11.16 cfs 1.278 of Pond 1SWP: Peak Elev=883.70' Storage=2,841 cf Inflow=11.48 cfs 0.725 af Primary=6.81 cfs 0.725 of Secondary=0.00 cfs 0.000 af Outflow=6.81 cfs 0.725 of Pond 2P: Peak Elev=880.60' Storage=0.004 of Inflow=10.62 cfs 0.660 of Outflow=10.60 cfs 0.660 af Pond 3P: Peak Elev=877.45' Storage=0.154 of Inflow=16.21 cfs 1.385 of Discarded=0.04 cfs 0.126 of Primary=12.22 cfs 1.259 af Outflow=12.26 cfs 1.385 af Total Runoff Area=7.070 ac Runoff Volume= 1.404 af Average Runoff Depth =2.38" 54.31%Pervious=3.840 ac 45.69%Impervious=3.230 ac , PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 15 Summary for Subcatchment 1S: Runoff = 0.16 cfs @ 12.03 hrs, Volume= 0.019 af, Depth= 0.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description 0.540 39 >75%Grass cover, Good, HSG A 0.540 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 270 0.2700 0.70 Lag/CN Method, Summary for Subcatchment 1SW: Runoff = 11.48 cfs @ 12.06 hrs, Volume= 0.725 af, Depth= 1.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75% Grass cover, Good, HSG A OFFSITE 0.340 98 Paved parking, HSG A 0.220 30 Woods, Good, HSG A 0.740 39 >75% Grass cover, Good, HSG A 4.490 61 Weighted Average 2.710 60.36% Pervious Area 1.780 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.5 910 0.1350 1.12 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 4.51 cfs @ 12.04 hrs, Volume= 0.263 af, Depth= 2.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD® 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 16 Area (ac) CN Description 0.610 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.540 39 >75% Grass cover, Good, HSG A 1.200 69 Weighted Average 0.590 49.17% Pervious Area 0.610 50.83% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.1 440 0.0350 0.61 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 7.48 cfs @ 11.95 hrs, Volume= 0.396 af, Depth= 5.66" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description 0.840 98 Paved parking, HSG A 0.840 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.2 440 0.0350 1.76 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 45.69% Impervious, Inflow Depth = 2.17" for 100YR event Inflow = 12.35 cfs @ 12.07 hrs, Volume= 1.278 of Outflow = 11.16 cfs @ 12.17 hrs, Volume= 1.278 af, Atten= 10%, Lag= 6.4 min Primary = 11.16 cfs @ 12.17 hrs, Volume= 1.278 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 875.51' @ 12.17 hrs Surf.Area= 2,324 sf Storage= 5,728 cf Plug-Flow detention time= 8.6 min calculated for 1.278 of (100%of inflow) Center-of-Mass det. time= 8.6 min ( 858.5 - 849.9 ) Volume Invert Avail.Storage Storage Description #1 866.30' 6,940 cf Custom Stage Data(Prismatic) Listed below (Recalc) , PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type II 24-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 17 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 866.30 12 0 0 866.50 15 3 3 868.00 55 53 55 870.00 205 260 315 872.00 630 835 1,150 874.00 1,245 1,875 3,025 876.00 2,670 3,915 6,940 Device Routing Invert Outlet Devices #1 Device 2 875.10' 60.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 866.30' 12.0" Round Culvert L= 38.0' Ke= 0.500 Inlet/Outlet Invert= 866.30'/865.35' S= 0.0250 '/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Device 2 866.30' 4.9" Vert. Orifice/Grate C= 0.600 #4 Device 2 872.00' 6.5" Vert. Orifice/Grate C= 0.600 #5 Device 2 875.10' 5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 0.5' Crest Height primary OutFlow Max=11.16 cfs @ 12.17 hrs HW=875.51' (Free Discharge) =Culvert (Inlet Controls 11.16 cfs @ 14.21 fps) 1=Orifice/Grate (Passes < 13.69 cfs potential flow) 3=Orifice/Grate (Passes < 1.89 cfs potential flow) =Orifice/Grate (Passes < 2.00 cfs potential flow) =Sharp-Crested Rectangular Weir (Passes < 4.72 cfs potential flow) Summary for Pond 1SWP: Inflow Area= 4.490 ac, 39.64% Impervious, Inflow Depth = 1.94" for 100YR event Inflow = 11.48 cfs @ 12.06 hrs, Volume= 0.725 af Outflow = 6.81 cfs @ 12.19 hrs, Volume= 0.725 af, Atten= 41%, Lag= 7.3 min Primary = 6.81 cfs @ 12.19 hrs, Volume= 0.725 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 883.70' @ 12.19 hrs Surf.Area= 2,632 sf Storage= 2,841 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 1.7 min ( 866.5 - 864.9 ) Volume Invert Avail.Storage Storage Description #1 881.00' 3,687 cf Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.00 4 0 0 882.00 555 280 280 883.00 1,595 1,075 1,355 884.00 3,070 2,333 3,687 PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type l/24-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 18 Device Routing Invert Outlet Devices #1 Device 2 881.00' 27.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 878.00' 12.0" Round Culvert L= 111.0' Ke= 0.500 Inlet/Outlet Invert= 878.00'/876.89' S= 0.0100 '/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Secondary 883.75' 15.0' long x 2.0' 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 Coef. (English) 2.54 2.61 2.61 2.60 2.66 2.70 2.77 2.89 2.88 2.85 3.07 3.20 3.32 Primary OutFlow Max=6.81 cfs @ 12.19 hrs HW=883.70' TW=877.16' (Dynamic Tailwater) t2=Culvert (Barrel Controls 6.81 cfs @ 8.67 fps) t1=Orifice/Grate (Passes 6.81 cfs of 31.47 cfs potential flow) §econdary OutFlow Max=0.00 cfs @ 0.00 hrs HW=881.00' TW=866.30' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 2P: Inflow Area= 2.040 ac, 71.08% Impervious, Inflow Depth = 3.88" for 100YR event Inflow = 10.62 cfs @ 11.96 hrs, Volume= 0.660 af Outflow = 10.60 cfs @ 11.97 hrs, Volume= 0.660 af, Atten= 0%, Lag= 0.3 min Primary = 10.60 cfs @ 11.97 hrs, Volume= 0.660 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 880.60' @ 11.97 hrs Surf.Area= 0.014 ac Storage= 0.004 af Plug-Flow detention time= 0.2 min calculated for 0.660 af (100%of inflow) Center-of-Mass det. time= 0.2 min ( 781.4 - 781.2 ) Volume Invert Avail.Storage Storage Description #1 880.13' 0.079 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.13 0.001 0.000 0.000 880.80 0.020 0.007 0.007 882.00 0.100 0.072 0.079 Device Routing Invert Outlet Devices #1 Primary 880.13' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads rimary OutFlow Max=10.58 cfs @ 11.97 hrs HW=880.60' TW=876.10' (Dynamic Tailwater) 1=Orifice/Grate (Weir Controls 10.58 cfs @ 2.24 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here) Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 19 Summary for Pond 3P: Inflow Area= 6.530 ac, 49.46% Impervious, Inflow Depth = 2.55" for 100YR event Inflow = 16.21 cfs @ 11.97 hrs, Volume= 1.385 of Outflow = 12.26 cfs @ 12.07 hrs, Volume= 1.385 af, Atten= 24%, Lag= 5.8 min Discarded = 0.04 cfs @ 12.09 hrs, Volume= 0.126 af Primary = 12.22 cfs @ 12.07 hrs, Volume= 1.259 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 877.45' @ 12.09 hrs Surf.Area= 0.050 ac Storage= 0.154 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 57.0 min ( 882.9 - 826.0 ) Volume Invert Avail.Storage Storage Description #1 872.50' 0.057 af ADS N-12 48 @ 200.00' L Inside#2 Inside= 47.7"W x 47.7"H => 12.40 sf x 200.00'L= 2,480.0 cf Outside= 54.0"W x 54.0"H => 14.85 sf x 200.00'L= 2,969.8 cf #2 871.25' 0.108 af Custom Stage Data(Prismatic) Listed below (Recalc) 0.337 af Overall - 0.068 af Embedded = 0.269 af x 40.0% Voids 0.165 af Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 871.25 0.050 0.000 0.000 872.50 0.050 0.062 0.062 878.00 0.050 0.275 0.337 Device Routing Invert Outlet Devices #1 Primary 873.50' 18.0" Round Culvert L= 30.0' Ke= 0.500 Inlet/Outlet Invert= 873.50'/871.00' S= 0.0833 '1 Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Discarded 871.25' 0.800 in/hr Exfiltration over Surface area above 871.24' Conductivity to Groundwater Elevation = 0.00' Excluded Surface area = 0.000 ac piscarded OutFlow Max=0.04 cfs @ 12.09 hrs HW=877.45' (Free Discharge) '-2=Exfiltration ( Controls 0.04 cfs) rimary OutFlow Max=12.16 cfs @ 12.07 hrs HW=877.44' TW=875.39' (Dynamic Tailwater) 1=Culvert (Inlet Controls 12.16 cfs @ 6.88 fps) Kurt Quaintance From: Mike Isensee <MIsensee@mnwcd.org> Sent: Friday,August 19, 2016 11:59 AM To: Kurt Quaintance Cc: James Landini; Eric Johnson Subject: RE:Oak Ridge Place- Memory Care Addition Review Results Attachments: Oak Ridge Memory Care_Project_Reviewconditiona) 5_13_2015.pdf Hello Kurt, At your request we reviewed the updated plan submittals and confirm conditions 3 and 4 are met. Conditions 1, 2 and 5 are still outstanding. Thank you, Mike Mikael Isensee, CPESC I Administrator Middle St.Croix Watershed Management Organization Watershed Specialist I Washington Conservation District 1455 Hayward Ave. I Oakdale,MN 55128 X651-330-8220 Ext.22 I Fax 651-330-7747 Cell Phone:612-839-6492 r'Z misenseemnwcd.orq www.mscwmo.orq www.mnwcd.orq From: Mike Isensee Sent: Monday, August 15, 2016 10:55 AM To: 'Kurt Quaintance' Cc:James Landini Subject: RE: Oak Ridge Place-Memory Care Addition Review Results Hello Kurt, Thank you for the follow up phone call. You are correct,we are in receipt of the revised plan sets proposed to meet the conditions 1,2,3 and 4. I will have them reviewed to verify they meet the standards. We are still seeking proposed modifications to meet the Lowest Floor Elevation and a Inspections and Maintenance Agreement. Regards, Mike Mikael Isensee, CPESC l Administrator Middle St.Croix Watershed Management Organization Watershed Specialist I Washington Conservation District 1455 Hayward Ave. I Oakdale,MN 55128 9651-330-8220 Ext.22 I Fax 651-330-7747 Cell Phone:612-839-6492 El misenseet mnwcd.orq www.mscwmo.orq www.mnwcd.orq From: Kurt Quaintance [mailto:kquaintance0jrhinc.com] Sent:Tuesday,July 07, 2015 4:45 PM To: Mike Isensee Cc: 'Shawn'; Eric Johnson Subject: Re: Oak Ridge Place- Memory Care Addition Review Results 1 Mike, Attached is the revised plan set including the infiltration notes as requested. We will be following up on the remaining items - Compensatory Storage, Low Floor Elevations, and Inspections and Maintenance Agreement with the City and let you know. Thanks again. Kurt Kurt D. Quaintance, PE Vice President James R. Hill, Inc. 2500 West County Road 42, #120 Burnsville, MN 55337 Ph. 952-890-6044 (ext.117) Fax. 952-890-6244 Cell (612) 508-8890 kquaintancer@jrhinc.com s,aw•,.r" MIDDLE ST. CROIX WATERSHED MANAGEMENT ORGANIZATION 455 HAY WARD AVENUE OAKDALE , MINNESTOA 55128 a•....H.p,.. Phone 651 . 330 . 8220 x22 fax 6 5 1 . 330 . 7747 www . mscwmo . org .•.vert ye " +� May 14,2015 MScwM? y.a Eric Johnson,Administrator " `"" low City of Oak Park Heights " • 14168 Oak Park Blvd.N. Oak Park Heights,MN 55082 w RE: Oak Ridge Memory Care Addition Dear Mr.Johnson, The Middle St. Croix Watershed Management Organization (MSCWMO) received required submittal items on May 3, 2015 for the proposed Oak Ridge Memory Care Addition, located within MSCWMO boundaries and in the City of Oak Park Heights. The proposed project qualifies for full review under the MSCWMO 2006 Watershed Management Plan (WMP). The project, as revised, contains sufficient information to determine conformance with the Policies and Performance Standards contained within Section 5.0 of the MSCWMO Watershed Management Plan. The MSCWMO approved the review with five conditions at their regular board meeting on May 14, 2015. Final plans and documentation addressing these five conditions must be submitted to the MSCWMO for staff review. Drainage Easement Compensatory Storage 1. The proposed project fills the existing City of Oak Park Heights drainage and utility easement and reduces flood storage by 1.4 acre feet. Compensatory storage of 1.1 ac-ft. must be demonstrated. Lowest Floor Elevations Lowest floor elevations of structures built adjacent to stormwater management features and other water bodies must be a minimum of two feet above the 100-year flood elevation and a minimum of two feet above the natural overflow of landlocked basins. 2. The Emergency Over Flow of Pond 1P is 2.04 feet above the existing building Finished Floor Elevation. Underground Infiltration Basin . - -- • uY Inspections and Maintenance 5. Provide an inspection and maintenance agreement for the underground infiltration system and dry detention basin 1P. The enclosed checklists contain detailed information on project review qualification and the policies and performance standards of the WMP.MSCWMO review process information can be downloaded from www.mscwmo.org. Feel free to contact me at 651-330-8220 x22 or misensee@mnwcd.org if you have any questions regarding these comments. Sincerely, Middle St. Croix Watershed Management Organization Member Communities Afton, Bayport, Baytown, Lakeland, Lakeland Shores, Lake St. Croix Beach, Oak Park Heights, St. Mary's Point, Stillwater, &West Lakeland May 14,2015 Page 2 of 2 Mikael Isensee Administrator Middle St. Croix Watershed Management Organization Cc: Chuck Dougherty,MSCWMO Board Manager Kurt Quaintance,P.E.,James R. Hill Inc.,2500 W.County Road 42, Suite 120,Burnsville,MN 55337 Enclosures Middle St. Croix Watershed Management Organization MEMBER COMMUNITIES: Afton,Bayport,Baytown Township,Lakeland,Lakeland Shores,Lake St.Croix Beach,Oak Park Heights,St.Mary's Point,Stillwater and West Lakeland Township r y rsa 3^� etp7< r * .I. WASHINGTON COUNTY PUBLIC WORKS DEPARTMENT ,,;, s'.; t ., __ o2 ,'f ,, 1, 11660 Myeron Road North+Stiliwater,Minnesota 55082 _i �` t- t '144:a n� ✓�.f4) Phone:(651)430-4300• Fax(651)430-4350 ^�°` z� �.x .7�<• <,Y' 1 a APPLICATION FOR `, „ar,,r41 '.1r� `' *, " f-4, STREET O R DRIVEWAY ACCESS PERMIT ,'ptite.e =_ 'zexi i- s,a' ch a drawing of the property,present and proposed access and relation to the county road and any cent stn s. :int Address(Street,City,Zip) Tel•Shawn Dahl C Invetments, LLC 2607 White Bear Ave, Maplewood, MN 612-366-4600 perty Owners Address(Street,City,Zip) • 55109 Tel.Shawn Dahl C Investments,LLC 2607 White Bear. Ave.Maplewood,MN 612-366-4600 ;al Description of Property(abbreviate if necessary)and Street Address: b 5109 t 1, Block 1, Oak Park Hei.hts Garden - " ? pose of OStreet ODriveway OField Entrance Is a Building to ONo mss: KICommerclal(Specify type) Driveway Be constnucted? *]Yes(Type)Senior L i v i n• i the OTemporary or Property tiPlatted or Distance from ce ter0of highway to front !ding be: IDPermanent Is in: OUnplatted area OSubdivision of building:± 6feet .of present Exact location of proposed driveway to property -ct location of present driveway to property reways to property: 1 30' north of southeast 295' north teneeded: 12/31/14 property corner of southeast property imated completion date: : 7 I a, corner r (1;* ---i-f .ip5 T:le57. t•�<.-x'?;S.0=_ 4a.., 8i 775.471, " s tpd.7r`s ! r k �f ., v ar"r h +�.,A.1 .lY2{�v� '.��iI � •�p 1 � 7! i' eil� *+ � 4. r '7 _ ' .'_� ^Y : � 7r :t t7 . { : , hi . i7e ,.,- ,;--- 'Cz41"i kr,- 01s : S d 'r S" 1L--::? .'A '^ •-Lia:: 1 N A hliV' 7 t _ti, ' f . .-, 5 ?,:-%'',i (We),the undersigned,herewithmake application for permission to construct the access at the above location,said lac cess to be constructed to conform with :regulations of Washington County and to any special provisions Included in the permit. It is agreed that all work will be done to the satisfaction of ,shington County. It Is further agreed that no work in connection with this application will be started until the application is approved and the permit issued. it expressly understood that this permit is conditioned upon replacement or restoration of the highway to its original or to a satisfactory condition. It is further derstood that this permit is issued subject to the approval of local city,village,or townsh authorities having joint supervision over said street or highway. Date Sigma of j��r;*: * 3t,a- kb yA¢`f :!g aY.;. .:.t, "w 0146—e-';i0. tr,-�•.a asaI ifl,. 'N..A.-✓ t �E-4t,,vo. /, �r4l kr ''y. f,* ,` .;y.. .^+..... , ACCESS DRIVEWAY PERMIT AUTHORIZATION—PERFORMANCE REQUIREMENTS • s a condition of this permit,culvert Is required: OYes ONo Culvert Size x Culvert aprons required:°Yes a No orm Sewer present Yes a No Locate by date:4it •li p14414.) the work Is not completed by the date given on this application,the cost of completing unfinished construction by County forces may be deducted from the *est. In the event that construction has not start 1�byy�this date,this permit becomes null and void and the permit fee shall be fo`rfeeiited and the deposit shall m PEC Adeci C i J ittlei- t PECIAL PROViSI NS: P.,0-nu /17� /ri41 t • ermission is hereby granted for the construction of the driveway as described in this application,said driveway to be constructed in accordance with all if mutations of Washington County and subject to the above requirements and special orovisions. 4/c)91/6 ' /_ /A- 3/ /C= tl,d edit r1 3I !lay 4 II work to be -• :. -ed by 2i ,pproved: ` --Authorized Signature Washington County Public Works Department Date L 'An—jr/4L%A. [.o. opies: [Applicant County Engineer OMunicipality -7 fy7/jC //a5AXi wised 9/20131 Itilemits1FormslAccassPermft.doc 46thra TO 7130A.: \ i64,111701Dag e 4ine6t urn. . WSoT Folin 30795.02(06-10-2014) Document Management System N o""Es°,, District M3 Permit !V-�-1.5-- (DS 4319 8 N MINNESOTA DEPARTMENT OF TRANSPORTATION ((irlp APPLICATION FOR DRAINAGE PERMIT j c.s. ca t t 4 T.H. 310 CIF 109- R.P. (THIS SECTION FOR MnDOT OFFICE USE ONLY.) AT.TACHA SKETCH OF THE PROPOSED WORKAREA AND RELATION TO TRUNKHIGHWAY. SUCH SKETCH SHALL BE DRANK TO SCALE WHEN REQUIRED BY THE ENGINEER.RINT OR TYPE APPLICATION. SIGN IN SPACE PROVIDED. SUBMIT TO LOCAL OFFICE OF MINNESOTA DEPARTMENT OF TRANSPORTATION. APPLICANT TELEPHONE ADDRESS (Street,City,State,Zip) 777- 1/65-riA OUTS, LA..e_ 45z-1357-6(07- 207 tAJ11;1-e,Sear Ave, M'pk i , AA/1/4-) PROPERTY OWNER TELEPHONE ADDRESS (Street,City,State,Zip) 55109 JRMr ex5 0 )017, if t.:1A/11— PARTY PERFORMING WORK TELEPHONE ADDRESS (Street,City,State,Zip) LOCATION • OF PROPOSED WORK (City/Township) (County) (Distance) (N -E-V) SP EIF)C ROAD NTEIRSC1 aR L N MARK Highway 36 in( s. / 44._, ,C' '�t5, W�rlt&1TbY Miles of 3'70 L(Je (36 �t..) TYPE OF DRAINAGE 0 Tile Outlet Open Ditch ❑Para i Installation AREA TO BE DRAINED CASING SIZE AND TYPE PIPE SIZE,/� AND TYPE IEI Other a7�r'mt St%Lee' • 121'et. 7.01 Acres A-).4 • Tit i=(P LEGAL DESCRIPTION OF PROPERTY WORK TO START ON OR AFTER WORK TO BE COMPLETED BY Lori &ca.t, atk Pak-+6,:914., (...Otr(ens (Date) 3/t /1 I (Date) P z/3 t /t5 J WILL THIS WORK BE WITHIN TRIBAL LANDS 0 Yes ENo IF YES,WHICH ONE The undersigned applicant hereby accepts the terms and conditions of this permit and agrees to fully comply therewith to the satisfaction of the Minnesota Department of Transportation.The applicant understands and agrees that no work in connection with this application will be started until the application has r been approved and the permit issued. The applicant also understands that this permit may also be subject to the approval of local road authorities having joint supervision over said street or highway,and may be subject to applicant's compliance with the rules and regulations of the Minnesota Environmental Quality Board and/or any other affected governmental agencies. The undersigned applicant expressly agrees that except for negligent acts of the State,its agents and employees,the applicant or his/her agents or contractor shall assume all liability for,and save the State,Its agents and employees,harmless front any and all claims for damages,actions or causes of action arising out of the work to be done in connection with this application and permit. � Name and Title - k �V - 7n.('` ("LA � ' e - Email address Sha u 17=6 `L `� e a MCStt.>. C.0en (Print or Type) ...-------- Date 'Date Z JJ') 1 iSignature r DO NOT WRITE BELOW THIS LINE PERMIT NOT VALID UNLESS SEE PAGE 2 FOR PERTINENT BEARING SIGNATURE AND NUMBER AUTHORIZATION OF PERMIT REGULATIONS AND CONDITIONS It is expressly understood that this permit is conditioned upon restoration of the trunk highway right-of-way to its original condition or to a satisfactory condition. In consideration of the applicant's agreement to comply in all respects with the applicable laws and the conditions of the Commissioner of Transportation pertaining to this permit,permission is hereby granted for the wo to be performed as described in the above application,said work to be performed in accordance with the following special provisions: 7_1�',j1 4 til SEE ATTACHED SPECIAL PROVISIONS 01 ° 4G `' le 1113', (-------- # 1/4-1 'PL,,)1. IZ 3t ...- �� 5/31/S— n W k To Be Comp!" B �/ o'T Signature Authorized Signature Dat P Y DISTRIBUTION D d,IT REQUIREMENTS DEPOSIT TYPE Original to Area Maintinance Engineer 0 No Deposit Required Cashiers Check N Applicant 0 Deposit Required in the Amount of S Certified Cluck N Subarea Supervisor Date Deposit Received Money Order N Roadway Regulations Supervisor Deposit to be returned upon satlsfaetory completion of all work. Bond N DATE WORK COMPLETED (The date when the work Is completed must tre reported to the local AInDOT Roadway Regulations Supervisor.) P..,.*I..r) • t Form 1723(6.26.20i3) Document Management System 0 OWES MINNESOTA DEPARTMENT OF TRANSPORTATION '1 District M3 Permit a V 5—i S- (056 tscO APPLICATION FOR MISCELLANEOUS WORK ON Q C.S. i/ Z 14 T.H. TRUNK HIGHWAY RIGHT OF WAY °F I) R.P. (THIS SECTION FOR MnDOT OFFICE USE ONLY.) ATTACHA SKETCH OF THE PROPOSED WORK AND RELATION TO TRUNK HIGHWAY. SUBMIT TO DISTRICT PERMIT OFFICE OF MINNESOTA DEPARTMENT OF TRANSPORTATION. APPLICANT TELEPHONE ADDRESS(Street,City,State,Zip) -7-7 4- =-A-tre04ne..<6, ZGG et5Z-8$7-6/4'1 2‘07 Crit de lt5a. e- If- 44 Aix) PARTY PERFORMING WORK TELEPHONE ADDRESS(Street,City,State,Zip) TB b LOCATION OF PROPOSED WORK L(Cayfro p) -(C}ou-ntyy))` (Distance) 4.S-.W) �,j SPECIFIC ROAD D iN�TER�SECTION OR LANDMARK Highway 34 in [2 P L 4 I s, z�L rr► .mitesr `"lief (.dCDCf ✓C/tell ) d fy et WILL THIS FACILITY BE WITHIN TRIBAL LANDS? 0 Yes No✓✓ IF YES,WHICH ONE? NAT RF, K PpO 6c IZ~DIP kikr6e4rt403 W/6"D 19 1 a P ovICE Fl suPpE ON roe 6i1U$1 t )& PeoPczeb 8URLi.1.I.LC&, SURFACE TO BE DISTURBED (Check Appropriate Boxes) 0 Roadway 0 Shoulder 0 Concrete 0 Bituminous 0 Gravel 14Turf Only ■ e v DEPTH OF EXCAVATION BELOW NUMBER SIZE OF EXCAVATIONS METHOD OF INSTALLATION`CONSTRUCTION SURFACE .7.5/ ,,ii f 70 Pr x Bo OPPN Tp&t,e-f-F WORK TO START ON OR AFTER WORK TO BE OMPLETED BY IS TRAFFIC DETOUR NECESSARY? ❑Yes 54 No -3//7 15 iZ.(6`f IS (IF YES,TRAFFIC CONTROL PLAN IS REQUIRED.) APPLICANT'S ACCEPTANCE,WAIVER AND INDEMNIFICATION The undersigned applicant hereby agrees to comply with applicable statutes,rules,and the standard conditions and special provisions of this permit.The applicant understands and agrees that no work In connection with this application will be started until the application has been approved and the permit issued. The applicant is aware of circumstances or hazards that may arise while performing the work associated with this application that could result in injury,loss,damage or death,and the applicant assumes the risk of such circumstances,dangers and hazards,whether reasonably foreseeable or not. The applicant also understands that this permit may also be subject to the approval of local road authorities having joint supervision over said street or highway,and may be subject to applicant's compliance with the rules and regulations of the Minnesota Environmental Quality Board and/or any other affected governmental agencies. The undersigned applicant expressly agrees that except for negligent acts of the State,its agents and employees,the applicant or his/her agents or contractor shall assume all liability for,and save the State,its agents and employees,harmless from any and all claims for damages,actions or causes of action arising out of the work to be done In connection with this application and permit. NAME AND TITLE EMAIL ADDRESS 1 5Aa►..,t.r b k (-- D t..,r.er-- situ t.�am1:3ot h.t e. a.r.e.s ex). co t"+'. DATE2-11q115 SIGNATURE �J' DO NOT WRITE BELOW THIS , PERMIT NOT VALID UNLESS BEARING AUTHORIZED MoD I 0 ' AND PERMIT NUMBER AUTHORIZATION OF PERMIT It is expressly understood that this permit Is conditioned upon restoration of the trunk highway right-of-way to its original condition or to a satisfactory condition. In consideration of the applicant's agreement to comply in all respects with the applicable laws and the conditions of the Commissioner of Transportation pertaining to this permit,permission is hereby granted for the work to be performed as described In the above application,said work to be performed In accordance with the following standard conditions and speciallprovisions: j Qom,,,,. AL�" r \ \ D S ff D S�A�G :Geµ�IVDI,"" `AND Z' 16 //S3� Ns / 31d 17 is-) ) Va lai' —or ,ale. A ir t`DDate/e Work To Be'Comp leted By .4.0"—e- •e Signature Date of Authorized Signature DISTRIBUTION DEPOSIT • a110.06:': i= S DEPOSIT TYPE Original to Area Maintenance Engineer ❑ No Deposit Required Cashier's Check N Applicant 0 Deposit Required in the Amount oil Certified Check N Subarea Supervisor Date Deposit Received Money Order it Roadway Regulations Supervisor Deposit so be rstarsed von sadifsetory completion ofstt work Bond N DATE WORK COMPLETED (The date when the work is completed must be reported to the MaDOT Dlstrlct Permits Office) Page 1 of 2