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HomeMy WebLinkAboutWPO202200038 Calculations 2022-09-14 (24)1S 5S 7S 9S O O O 0+00 - �+00 1+00 - �+00 2+00 -I3+00 3+00 -1400 F6R] -i [8R] -�> [10R] -p 17R 0+00 - 0+50 0+50 - 2+00 2+00 - 3+25 3+25 - 4+00 4+00 - 4+69 Subcat Reach On Link Routing Diagram for UD POA#2 Prepared by HP, Printed g/6/2022 FHydroCAD@ 10.10-6a S/n 08126 0 2020 HydroCAD Software Solutions LLC UD_POA#2 Prepared by HP Project Notes Defined 10 rainfall events from Albemarle Rainfall OF Copied 10 events from Albemarle Rainfall 24-hr S1 storm Printed 9/6/2022 UD_POA#2 Prepared by HP Area Listing (all nodes) Area C Description (acres) (subcatchment-numbers) 0.600 0.35 (1S, 5S, 7S, 9S) 0.600 0.35 TOTAL AREA Printed 9/6/2022 UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 HVdroCAD® 10.10-6a s/n 08126 © 2020 HVdroCAD Software Solutions LLC Paae 4 Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points Runoff by Rational method, Rise/Fall=1.0/1.0 xTc Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Subcatchment 1S: 0+00 - 1+00 Runoff Area=0.150 ac 0.00% Impervious Runoff Depth=0.18" Tc=5.0 min C=0.35 Runoff=0.24 cfs 0.002 of Subcatchment 5S: 1+00 - 2+00 Runoff Area=0.130 ac 0.00% Impervious Runoff Depth=0.18" Tc=5.0 min C=0.35 Runoff=0.21 cfs 0.002 of Subcatchment 7S: 2+00 - 3+00 Runoff Area=0.150 ac 0.00% Impervious Runoff Depth=0.18" Tc=5.0 min C=0.35 Runoff=0.24 cfs 0.002 of Subcatchment 9S: 3+00 - 4+00 Runoff Area=0.170 ac 0.00% Impervious Runoff Depth=0.18" Tc=5.0 min C=0.35 Runoff=0.27 cfs 0.003 of Reach 4R: 0+00 - 0+50 Avg. Flow Depth=0.19' Max Vet=2.11 fps Inflow=0.24 cfs 0.002 of n=0.035 L=50.0' S=0.0600'/' Capacity=18.91 cfs Outflow=0.24 cfs 0.002 of Reach 6R: 0+50 - 2+00 Avg. Flow Depth=0.22' Max Vet=3.15 fps Inflow=0.45 cfs 0.004 of n=0.035 L=150.0' S=0.1161 T Capacity=26.30 cfs Outflow=0.44 cfs 0.004 of Reach 8R: 2+00 - 3+25 Avg. Flow Depth=0.25' Max Vet=3.62 fps Inflow=0.68 cfs 0.007 of n=0.035 L=125.0' S=0.1265'/' Capacity=27.45 cfs Outflow=0.67 cfs 0.007 of Reach 1 OR: 3+25 - 4+00 Avg. Flow Depth=0.37' Max Vet=2.28 fps Inflow=0.94 cfs 0.009 of n=0.035 L=75.0' S=0.0299'/' Capacity=13.34 cfs Outflow=0.93 cfs 0.009 of Reach 17R: 4+00 - 4+69 Avg. Flow Depth=0.37' Max Vet=2.28 fps Inflow=0.93 cfs 0.009 of n=0.035 L=69.7' S=0.0300'/' Capacity=13.37 cfs Outflow=0.92 cfs 0.009 of Total Runoff Area = 0.600 ac Runoff Volume = 0.009 of Average Runoff Depth = 0.18" 100.00% Pervious = 0.600 ac 0.00% Impervious = 0.000 ac UD_POA#2 Prepared by HP Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 1S: 0+00 -1+00 Runoff = 0.24 cfs @ 0.09 hrs, Volume= 0.002 af, Depth= 0.18" Routed to Reach 4R : 0+00 - 0+50 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr 0.150 0.35 0.150 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, 0.2 0. 0.2 0. 0.1 0.1 �. 0.1 0 LL 0.1 0. 0.0 0.0 0.0 0.0 Subcatchment 1S: 0+00 -1+00 Hydrograph ■■■■■■■■■■ ■■■ �I I - _ • • • IIMM r in 1 1 - 1 11 , : • ■■■■■■■■■■■■ ■■■■■■■■■■■■ ■■■■■■■■■■■ it �I ■■■■■■■■■■■■■:::■ ; ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■OR �I ■■■■■■■■■■■■■■■■■■■■■ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ■ Runoff UD_POA#2 Prepared by HP Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 5S: 1+00 - 2+00 Runoff = 0.21 cfs @ 0.09 hrs, Volume= 0.002 af, Depth= 0.18" Routed to Reach 6R : 0+50 - 2+00 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr 0.130 0.35 0.130 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 5S: 1+00 - 2+00 Hydrograph ....NEE. MIN ..... ..v... ._ ._.._ , -- • • 1 1 1 1 ______ __ ___ _ ........MMIN .-----------�. •-------IMME I----------- INNINIMMEN .........INNUMMEMMEN IMEMEN IMEMEMEMINE . -----IMMINE - I•--..IMMINE .....MMINNI -- - - - �■------------ --------- ---- - -- - - -----IMMEM I ME ------- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ■ Rurwff UD_POA#2 Prepared by HP Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 7S: 2+00 - 3+00 Runoff = 0.24 cfs @ 0.09 hrs, Volume= 0.002 af, Depth= 0.18" Routed to Reach 8R : 2+00 - 3+25 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr 0.150 0.35 0.150 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, 0.2 0. 0.2 0. 0.1 0.1 �. 0.1 0 LL 0.1 0. 0.0 0.0 0.0 0.0 Subcatchment 7S: 2+00 - 3+00 Hydrograph ■■■■■■■■■■ ■■■ �I I - _ • • • IIMM r in 1 1 - 1 11 , : • ■■■■■■■■■■■■ ■■■■■■■■■■■■ ■■■■■■■■■■■ it �I ■■■■■■■■■■■■■:::■ ; ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■OR �I ■■■■■■■■■■■■■■■■■■■■■ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ■ Runoff UD_POA#2 Prepared by HP Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 9S: 3+00 - 4+00 Runoff = 0.27 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.18" Routed to Reach 1OR: 3+25 - 4+00 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr 0.170 0.35 0.170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 9S: 3+00 - 4+00 Hydrograph ■ Rurwff Time (hours) UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 4R: 0+00 - 0+50 Inflow Area = 0.150 ac, 0.00% Impervious, Inflow Depth = 0.18" for 2-yr event Inflow = 0.24 cfs @ 0.09 hrs, Volume= 0.002 of Outflow = 0.24 cfs @ 0.10 hrs, Volume= 0.002 af, Atten= 0%, Lag= 0.9 min Routed to Reach 6R : 0+50 - 2+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.11 fps, Min. Travel Time= 0.4 min Avg. Velocity = 1.19 fps, Avg. Travel Time= 0.7 min Peak Storage= 6 cf @ 0.10 hrs Average Depth at Peak Storage= 0.19' , Surface Width= 1.16' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 18.91 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 50.0' Slope= 0.0600 T Inlet Invert= 368.00', Outlet Invert= 365.00' Reach 4R: 0+00 - 0+50 ■ Inflow ❑ Outflow 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 6R: 0+50 - 2+00 [62] Hint: Exceeded Reach 4R OUTLET depth by 0.05' @ 0.21 hrs Inflow Area = 0.280 ac, 0.00% Impervious, Inflow Depth = 0.18" for 2-yr event Inflow = 0.45 cfs @ 0.10 hrs, Volume= 0.004 of Outflow = 0.44 cfs @ 0.11 hrs, Volume= 0.004 af, Atten= 1 %, Lag= 0.6 min Routed to Reach 8R : 2+00 - 3+25 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 3.15 fps, Min. Travel Time= 0.8 min Avg. Velocity = 1.38 fps, Avg. Travel Time= 1.8 min Peak Storage= 21 cf @ 0.11 hrs Average Depth at Peak Storage= 0.22' , Surface Width= 1.29' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 26.30 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 150.0' Slope= 0.1161 T Inlet Invert= 365.00', Outlet Invert= 347.59' UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 Reach 6R: 0+50 - 2+00 Hydrograph ■ Inflow ■aufiow Time (hours) UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 8R: 2+00 - 3+25 [62] Hint: Exceeded Reach 6R OUTLET depth by 0.03' @ 0.14 hrs Inflow Area = 0.430 ac, 0.00% Impervious, Inflow Depth = 0.18" for 2-yr event Inflow = 0.68 cfs @ 0.11 hrs, Volume= 0.007 of Outflow = 0.67 cfs @ 0.12 hrs, Volume= 0.007 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 1 OR: 3+25 - 4+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 3.62 fps, Min. Travel Time= 0.6 min Avg. Velocity = 1.43 fps, Avg. Travel Time= 1.5 min Peak Storage= 23 cf @ 0.12 hrs Average Depth at Peak Storage= 0.25' , Surface Width= 1.49' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 27.45 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 125.0' Slope= 0.1265'/' Inlet Invert= 347.59', Outlet Invert= 331.78' UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 0. I 0. I 0. I 0. I 0 0. LL I 0. I 0. I 0. Reach 8R: 2+00 - 3+25 Hydrograph ■■■■■■ ■■■■■-■■■ ■■■■■■■■■ ..Inf - . . . - . , -„ , . ` ..,. , . �I I� III ■■■■■■■■ ■ ■■■■■■■■■ ■■■■■■■■■■■■ ■■■■■■■■■■■■■■■ ■■■■.■■.■■■■. :■■:::■■■■■:■ .■■■■■■■■■■■■■� .■......■....■� .■■■■■■■■■. 0iiii�iii�iiiiiiiiiiiiiiiiiiiii�iii�iiii�iii�iiiiii�iiiiii� , 1234 789101............. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ■ Inflow ■ Outflow UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 1 OR: 3+25 - 4+00 [62] Hint: Exceeded Reach 8R OUTLET depth by 0.12' @ 0.12 hrs Inflow Area = 0.600 ac, 0.00% Impervious, Inflow Depth = 0.18" for 2-yr event Inflow = 0.94 cfs @ 0.11 hrs, Volume= 0.009 of Outflow = 0.93 cfs @ 0.12 hrs, Volume= 0.009 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 17R : 4+00 - 4+69 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.28 fps, Min. Travel Time= 0.5 min Avg. Velocity = 0.75 fps, Avg. Travel Time= 1.7 min Peak Storage= 31 cf @ 0.12 hrs Average Depth at Peak Storage= 0.37' , Surface Width= 2.21' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 13.34 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 75.0' Slope= 0.0299 T Inlet Invert= 331.78', Outlet Invert= 329.54' UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 Whir Prepared by HP Printed 9/6/2022 Reach 10R: 3+25 - 4+00 Hydrograph I� 1234 786101............. 0 1 2 3 4 5 6 7 8 9 i6 11 12 13 14 15 16 17 18 19 26 21 22 23 24 Time (hours) ■ Inflow ❑ Outflow UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 17R: 4+00 - 4+69 [62] Hint: Exceeded Reach 1 OR OUTLET depth by 0.03' @ 0.21 hrs Inflow Area = 0.600 ac, 0.00% Impervious, Inflow Depth = 0.18" for 2-yr event Inflow = 0.93 cfs @ 0.12 hrs, Volume= 0.009 of Outflow = 0.92 cfs @ 0.13 hrs, Volume= 0.009 af, Atten= 1 %, Lag= 0.4 min Routed to nonexistent node 18R Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.28 fps, Min. Travel Time= 0.5 min Avg. Velocity = 0.71 fps, Avg. Travel Time= 1.6 min Peak Storage= 28 cf @ 0.13 hrs Average Depth at Peak Storage= 0.37' , Surface Width= 2.20' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 13.37 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.07 Top Width= 6.00' Length= 69.7' Slope= 0.0300 T Inlet Invert= 329.54', Outlet Invert= 327.45' UD_POA#2 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 Whir Prepared by HP Printed 9/6/2022 Reach 17R: 4+00 - 4+69 Hydrograph ■ Inflow o Outflow Time (hours) UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Printed 9/6/2022 HVdroCAD® 10.10-6a s/n 08126 © 2020 HVdroCAD Software Solutions LLC Paoe 18 Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points Runoff by Rational method, Rise/Fall=1.0/1.0 xTc Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Subcatchment 1S: 0+00 - 1+00 Runoff Area=0.150 ac 0.00% Impervious Runoff Depth=0.24" Tc=5.0 min C=0.35 Runoff=0.31 cfs 0.003 of Subcatchment 5S: 1+00 - 2+00 Runoff Area=0.130 ac 0.00% Impervious Runoff Depth=0.24" Tc=5.0 min C=0.35 Runoff=0.27 cfs 0.003 of Subcatchment 7S: 2+00 - 3+00 Runoff Area=0.150 ac 0.00% Impervious Runoff Depth=0.24" Tc=5.0 min C=0.35 Runoff=0.31 cfs 0.003 of Subcatchment 9S: 3+00 - 4+00 Runoff Area=0.170 ac 0.00% Impervious Runoff Depth=0.24" Tc=5.0 min C=0.35 Runoff=0.36 cfs 0.003 of Reach 4R: 0+00 - 0+50 Avg. Flow Depth=0.22' Max Vet=2.26 fps Inflow=0.31 cfs 0.003 of n=0.035 L=50.0' S=0.0600 7 Capacity=18.91 cfs Outflow=0.32 cfs 0.003 of Reach 6R: 0+50 - 2+00 Avg. Flow Depth=0.24' Max Vet=3.38 fps Inflow=0.59 cfs 0.006 of n=0.035 L=150.0' S=0.1161 T Capacity=26.30 cfs Outflow=0.58 cfs 0.006 of Reach 8R: 2+00 - 3+25 Avg. Flow Depth=0.28' Max Vet=3.88 fps Inflow=0.90 cfs 0.009 of n=0.035 L=125.0' S=0.1265'/' Capacity=27.45 cfs Outflow=0.89 cfs 0.009 of Reach 1 OR: 3+25 - 4+00 Avg. Flow Depth=0.41' Max Vet=2.45 fps Inflow=1.24 cfs 0.012 of n=0.035 L=75.0' S=0.0299'/' Capacity=13.34 cfs Outflow=1.24 cfs 0.012 of Reach 17R: 4+00 - 4+69 Avg. Flow Depth=0.41' Max Vet=2.45 fps Inflow=1.24 cfs 0.012 of n=0.035 L=69.7' S=0.0300'/' Capacity=13.37 cfs Outflow=1.23 cfs 0.012 of Total Runoff Area = 0.600 ac Runoff Volume = 0.012 of Average Runoff Depth = 0.24" 100.00% Pervious = 0.600 ac 0.00% Impervious = 0.000 ac UD_POA#2 Prepared by HP Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 1S: 0+00 -1+00 Runoff = 0.31 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.24" Routed to Reach 4R : 0+00 - 0+50 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr 0.150 0.35 0.150 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, 0 0 Subcatchment 1S: 0+00 -1+00 Hydrograph rl . • 1 ' • , .......... ........... is .........W......... MEMEEMMEMMEMME ...... 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ❑ RunoH UD_POA#2 Prepared by HP Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 5S: 1+00 - 2+00 Runoff = 0.27 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.24" Routed to Reach 6R : 0+50 - 2+00 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr 0.130 0.35 0.130 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 5S: 1+00 - 2+00 Hydrograph ❑ RunoH Time (hours) UD_POA#2 Prepared by HP Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 7S: 2+00 - 3+00 Runoff = 0.31 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.24" Routed to Reach 8R : 2+00 - 3+25 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr 0.150 0.35 0.150 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, 0 0 Subcatchment 7S: 2+00 - 3+00 Hydrograph rl . • 1 ' • , .......... ........... is .........W......... MEMEEMMEMMEMME ...... 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ❑ RunoH UD_POA#2 Prepared by HP Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 9S: 3+00 - 4+00 Runoff = 0.36 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.24" Routed to Reach 1 OR: 3+25 - 4+00 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr 0.170 0.35 0.170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, a. a. o. 0.3 0.. 0.2 0.2 0.2 0.2 0. ° 0.1 0.1 0.1 0.1 0. 0.0 0.0 0.0 0.0 Subcatchment 9S: 3+00 - 4+00 Hydrograph mm ....... I.......... it ......... • - 1 , • .. Runoff Area=0.170 ac Runoff. 1 1 1 unoff-• 1 1 ............ ............ ............ .......... MMMMMMMMM .......... :....:::::..... I ................ 1 . �I............MMINMm ................... . �I Time (homm) ❑ RunoH UD_POA#2 Prepared by HP Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Reach 4R: 0+00 - 0+50 Inflow Area = 0.150 ac, 0.00% Impervious, Inflow Depth = 0.24" for 10-yr event Inflow = 0.31 cfs @ 0.09 hrs, Volume= 0.003 of Outflow = 0.32 cfs @ 0.10 hrs, Volume= 0.003 af, Atten= 0%, Lag= 0.9 min Routed to Reach 6R : 0+50 - 2+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.26 fps, Min. Travel Time= 0.4 min Avg. Velocity = 1.27 fps, Avg. Travel Time= 0.7 min Peak Storage= 7 cf @ 0.10 hrs Average Depth at Peak Storage= 0.22' , Surface Width= 1.29' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 18.91 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 50.0' Slope= 0.0600 T Inlet Invert= 368.00', Outlet Invert= 365.00' Reach 4R: 0+00 - 0+50 ❑ Inflow ❑ Outflow r r ................ r r: r r. II� 1,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ... .......ME... ;; 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 6R: 0+50 - 2+00 [62] Hint: Exceeded Reach 4R OUTLET depth by 0.05' @ 0.21 hrs Inflow Area = 0.280 ac, 0.00% Impervious, Inflow Depth = 0.24" for 10-yr event Inflow = 0.59 cfs @ 0.10 hrs, Volume= 0.006 of Outflow = 0.58 cfs @ 0.11 hrs, Volume= 0.006 af, Atten= 1 %, Lag= 0.5 min Routed to Reach 8R : 2+00 - 3+25 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 3.38 fps, Min. Travel Time= 0.7 min Avg. Velocity = 1.46 fps, Avg. Travel Time= 1.7 min Peak Storage= 26 cf @ 0.11 hrs Average Depth at Peak Storage= 0.24' , Surface Width= 1.44' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 26.30 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 150.0' Slope= 0.1161 T Inlet Invert= 365.00', Outlet Invert= 347.59' UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Printed 9/6/2022 Reach 6R: 0+50 - 2+00 Hydrograph ■■■■■■■■■■■ 1234 789101............. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ■ Inflow ■ Outflow UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 8R: 2+00 - 3+25 [62] Hint: Exceeded Reach 6R OUTLET depth by 0.04' @ 0.14 hrs Inflow Area = 0.430 ac, 0.00% Impervious, Inflow Depth = 0.24" for 10-yr event Inflow = 0.90 cfs @ 0.11 hrs, Volume= 0.009 of Outflow = 0.89 cfs @ 0.12 hrs, Volume= 0.009 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 1 OR: 3+25 - 4+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 3.88 fps, Min. Travel Time= 0.5 min Avg. Velocity = 1.51 fps, Avg. Travel Time= 1.4 min Peak Storage= 29 cf @ 0.12 hrs Average Depth at Peak Storage= 0.28' , Surface Width= 1.66' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 27.45 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 125.0' Slope= 0.1265'/' Inlet Invert= 347.59', Outlet Invert= 331.78' UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 Whir Prepared by HP Printed 9/6/2022 Reach 8R: 2+00 - 3+25 Hydrograph ■ Inflow 0 outflow Time (hours) UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 1 OR: 3+25 - 4+00 [62] Hint: Exceeded Reach 8R OUTLET depth by 0.13' @ 0.12 hrs Inflow Area = 0.600 ac, 0.00% Impervious, Inflow Depth = 0.24" for 10-yr event Inflow = 1.24 cfs @ 0.11 hrs, Volume= 0.012 of Outflow = 1.24 cfs @ 0.12 hrs, Volume= 0.012 af, Atten= 1 %, Lag= 0.3 min Routed to Reach 17R : 4+00 - 4+69 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.45 fps, Min. Travel Time= 0.5 min Avg. Velocity = 0.79 fps, Avg. Travel Time= 1.6 min Peak Storage= 38 cf @ 0.12 hrs Average Depth at Peak Storage= 0.41' , Surface Width= 2.46' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 13.34 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0'/' Top Width= 6.00' Length= 75.0' Slope= 0.0299 T Inlet Invert= 331.78', Outlet Invert= 329.54' UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 Whir Prepared by HP Printed 9/6/2022 Reach 10R: 3+25 - 4+00 Hydrograph ■ Inflow ❑ Outflow Time (hours) UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Printed 9/6/2022 Summary for Reach 17R: 4+00 - 4+69 [62] Hint: Exceeded Reach 1 OR OUTLET depth by 0.03' @ 0.21 hrs Inflow Area = 0.600 ac, 0.00% Impervious, Inflow Depth = 0.24" for 10-yr event Inflow = 1.24 cfs @ 0.12 hrs, Volume= 0.012 of Outflow = 1.23 cfs @ 0.12 hrs, Volume= 0.012 af, Atten= 1 %, Lag= 0.3 min Routed to nonexistent node 18R Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.45 fps, Min. Travel Time= 0.5 min Avg. Velocity = 0.75 fps, Avg. Travel Time= 1.6 min Peak Storage= 35 cf @ 0.12 hrs Average Depth at Peak Storage= 0.41' , Surface Width= 2.45' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 13.37 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.07 Top Width= 6.00' Length= 69.7' Slope= 0.0300 T Inlet Invert= 329.54', Outlet Invert= 327.45' UD_POA#2 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Printed 9/6/2022 Reach 17R: 4+00 - 4+69 Hydrograph ■ Inflow ❑ Outflow 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours)