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HomeMy WebLinkAboutWPO202200038 Calculations 2022-09-14 (6)1 S 22S 5S 21 S O O O 20S 3+00 - 4+ 0 1+00 - 2+ 2+00 - 3+ 0 4+00 - t 0+00 - 1+Q0 4R -� 6R -� 20R p 1 RR 0+00 - 1+00 1+00 - 2+00 2+00 - 3+00 3+00 - 4+00 4+00 - 5+00 Subcat Reach Aon Llnk Ditch1_POA#4 Prepared by HP Inc. Project Notes Defined 10 rainfall events from Albemarle Rainfall OF Copied 10 events from Albemarle Rainfall 24-hr S1 storm Printed 9/6/2022 Ditch1_POA#4 Prepared by HP Inc. Area Listing (all nodes) Area C Description (acres) (subcatchment-numbers) 0.540 0.50 (1 S, 21 S, 22S) 0.470 0.35 (5S, 20S) 190111=lxlSrito] C_1w_1;w_1 Printed 9/6/2022 Ditch1_POA#4 Albemarle Rainfall2-yr Duration=7 min, Inten=4.50 in/hr Prepared by HP Inc. Printed 9/6/2022 HVdroCADO 10.10-7c s/n 08126 © 2022 HVdroCAD Software Solutions LLC Facie 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: 1+00 - 2+00 Runoff Area=0.140 ac 0.00% Impervious Runoff Depth=0.26" Tc=5.0 min C=0.50 Runoff=0.32 cfs 0.003 of Subcatchment 5S: 3+00 - 4+00 Runoff Area=0.320 ac 0.00% Impervious Runoff Depth=0.18" Tc=5.0 min C=0.35 Runoff=0.51 cfs 0.005 of Subcatchment 20S: 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 21S: 4+00 - 5+00 Runoff Area=0.250 ac 0.00% Impervious Runoff Depth=0.26" Tc=5.0 min C=0.50 Runoff=0.57 cfs 0.005 of Subcatchment 22S: 2+00 - 3+00 Runoff Area=0.150 ac 0.00% Impervious Runoff Depth=0.26" Tc=5.0 min C=0.50 Runoff=0.34 cfs 0.003 of Reach 4R: 0+00 - 1+00 Avg. Flow Depth=0.26' Max Vet=1.15 fps Inflow=0.24 cfs 0.002 of n=0.035 L=100.0' S=0.0122 T Capacity=8.53 cfs Outflow=0.23 cfs 0.002 of Reach 6R: 1+00 - 2+00 Avg. Flow Depth=0.28' Max Vet=2.20 fps Inflow=0.54 cfs 0.005 of n=0.035 L=100.0' S=0.0390'/' Capacity=15.24 cfs Outflow=0.53 cfs 0.005 of Reach 19R: 4+00 - 5+00 Avg. Flow Depth=0.33' Max Vet=5.77 fps Inflow=1.88 cfs 0.019 of n=0.035 L=100.0' S=0.2204'/' Capacity=36.37 cfs Outflow=1.87 cfs 0.019 of Reach 20R: 2+00 - 3+00 Avg. Flow Depth=0.34' Max Vet=2.47 fps Inflow=0.87 cfs 0.009 of n=0.035 L=100.0' S=0.0390 7 Capacity=15.24 cfs Outflow=0.86 cfs 0.009 of Reach 21 R: 3+00 - 4+00 Avg. Flow Depth=0.43' Max Vet=2.35 fps Inflow=1.35 cfs 0.014 of n=0.035 L=100.0' S=0.0254'/' Capacity=12.30 cfs Outflow=1.33 cfs 0.014 of Total Runoff Area = 1.010 ac Runoff Volume = 0.019 of Average Runoff Depth = 0.23" 100.00% Pervious = 1.010 ac 0.00% Impervious = 0.000 ac Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 1S: 1+00 - 2+00 Runoff = 0.32 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.26" Routed to Reach 6R : 1+00 - 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 0.140 0.50 0.140 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, 0.. 0.2 0.2 0.2 0.2 0. 0.1 01 LL 0.1 0.1 0. 0.0 0.0 0.0 0.0 Subcatchment 1S: 1+00 - 2+00 Hydrograph .. . ............ ............ �� ... ■■■■■■■ ■■■ ... ■E ME MEMO II 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 5S: 3+00 - 4+00 Runoff = 0.51 cfs @ 0.09 hrs, Volume= 0.005 af, Depth= 0.18" Routed to Reach 21 R : 3+00 - 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 0.320 0.35 0.320 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, 0.55- C 0.5 0.45 0.4 0.35 Subcatchment 5S: 3+00 - 4+00 Hydrograph IPA I'mi ■■■■■■■■ ■ ,,,,,,,,,,,,,,,,,,,, ._,,,,,,,,,,,,,,,,� 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 20S: 0+00 -1+00 Runoff = 0.24 cfs @ 0.09 hrs, Volume= 0.002 af, Depth= 0.18" Routed to Reach 4R : 0+00 - 1+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 0.150 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, 5 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 20S: 0+00 -1+00 Hydrograph ■■■■■■■■■■ ■■■ �I I - _ • • • IIMM r 11fi■ 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 21S: 4+00 - 5+00 Runoff = 0.57 cfs @ 0.09 hrs, Volume= 0.005 af, Depth= 0.26" Routed to Reach 19R : 4+00 - 5+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 0.250 0.50 0.250 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 21S: 4+00 - 5+00 Hydrograph ■ Rurwff Time (hours) Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Subcatchment 22S: 2+00 - 3+00 Runoff = 0.34 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.26" Routed to Reach 20R : 2+00 - 3+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 0.150 0.50 0.150 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: 2+00 - 3+00 Hydrograph FIRM VA IMMMMMMMMMMMMMMMMMMMM . _. . 1 1 ............ ............ I............. itIMMMMMMMMMMMMM- ............. ................ mom M......Mvww �I C.... .. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,����������������,,,,,,� 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Reach 4R: 0+00 -1+00 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 = 0.23 cfs @ 0.12 hrs, Volume= 0.002 af, Atten= 4%, Lag= 1.8 min Routed to Reach 6R : 1+00 - 2+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity-- 1.15 fps, Min. Travel Time= 1.5 min Avg. Velocity = 0.39 fps, Avg. Travel Time= 4.3 min Peak Storage= 20 cf @ 0.12 hrs Average Depth at Peak Storage= 0.26' , Surface Width= 1.54' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 8.53 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 '/' Top Width= 6.00' Length= 100.0' Slope= 0.01227' Inlet Invert= 373.63', Outlet Invert= 372.41' 0 0 0 0 0 0 M 0 0. 0. 0. 0. Reach 4R: 0+00 - 1+00 Hydrograph 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 e Outflow Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Summary for Reach 6R: 1+00 - 2+00 [62] Hint: Exceeded Reach 4R OUTLET depth by 0.03' @ 0.11 hrs Printed 9/6/2022 Inflow Area = 0.290 ac, 0.00% Impervious, Inflow Depth = 0.22" for 2-yr event Inflow = 0.54 cfs @ 0.11 hrs, Volume= 0.005 of Outflow = 0.53 cfs @ 0.12 hrs, Volume= 0.005 af, Atten= 1 %, Lag= 0.5 min Routed to Reach 20R : 2+00 - 3+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.20 fps, Min. Travel Time= 0.8 min Avg. Velocity = 0.72 fps, Avg. Travel Time= 2.3 min Peak Storage= 24 cf @ 0.12 hrs Average Depth at Peak Storage= 0.28' , Surface Width= 1.71' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 15.24 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 7' Top Width= 6.00' Length= 100.0' Slope= 0.0390 7' Inlet Invert= 372.41', Outlet Invert= 368.51' Ditch1_POA#4 Prepared by HP Inc. OJ 0.c OA! 01 0.: 0 LL 02 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Reach SR: 1+00 - 2+00 Hydrograph ■■■■■■■■■■■■■■■■■■■ _ ..■■.■■■■■.P: 1 F ��Q�■■■■■■■■■■■■■■ �■■■■■■■■■■■■■■ II 1 ■■■E■■■■■■■"Ma+l. ■■■■■■■■■■■W. _ M�PIE . - . . i■ ■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■ ■■■■■■■■■■■■ i i 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) ❑ Inflow 0 Outflow Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Summary for Reach 19R: 4+00 - 5+00 [61] Hint: Exceeded Reach 21R outlet invert by 0.33' @ 0.12 hrs Inflow Area = 1.010 ac, 0.00% Impervious, Inflow Depth = 0.23" for 2-yr event Inflow = 1.88 cfs @ 0.12 hrs, Volume= 0.019 of Outflow = 1.87 cfs @ 0.12 hrs, Volume= 0.019 af, Atten= 0%, Lag= 0.2 min Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 5.77 fps, Min. Travel Time= 0.3 min Avg. Velocity = 1.78 fps, Avg. Travel Time= 0.9 min Peak Storage= 32 cf @ 0.12 hrs Average Depth at Peak Storage= 0.33' , Surface Width= 1.97' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 36.37 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 100.0' Slope= 0.22047 Inlet Invert= 362.07'. Outlet Invert= 340.03' F Reach 19R: 4+00 - 5+00 Hydrograph • s III III III 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Summary for Reach 20R: 2+00 - 3+00 [62] Hint: Exceeded Reach 6R OUTLET depth by 0.06' @ 0.13 hrs Printed 9/6/2022 Inflow Area = 0.440 ac, 0.00% Impervious, Inflow Depth = 0.24" for 2-yr event Inflow = 0.87 cfs @ 0.11 hrs, Volume= 0.009 of Outflow = 0.86 cfs @ 0.12 hrs, Volume= 0.009 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 21 R : 3+00 - 4+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.47 fps, Min. Travel Time= 0.7 min Avg. Velocity = 0.74 fps, Avg. Travel Time= 2.3 min Peak Storage= 35 cf @ 0.12 hrs Average Depth at Peak Storage= 0.34' , Surface Width= 2.04' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 15.24 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 7' Top Width= 6.00' Length= 100.0' Slope= 0.0390 7' Inlet Invert= 368.51', Outlet Invert= 364.61' Ditch1_POA#4 Prepared by HP Inc. 0.9 0 0.8 0. 0.7 0. 0.6 0. 0.5 0. 0 0.4 LL 0. 0.3 0. 0.2 0. 0.1 0. 0.0 Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Printed 9/6/2022 Reach 20R: 2+00 - 3+00 Hydrograph ONTW�Wlo OFony_L� . �.......... ........... II II i ■ ■ ................. ................. I� ■ .............■IWYii�/li�rili�i ................. ..MOM I I/■ ■ ................ ..MM I ■ww�om�ww�ww ... MMMMMM iiiiiiiiiiiiiiiii� Time (hours) ■ Inflow ■ 22= Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 in/hr Summary for Reach 21 R: 3+00 - 4+00 [62] Hint: Exceeded Reach 20R OUTLET depth by 0.10' @ 0.13 hrs Printed 9/6/2022 Inflow Area = 0.760 ac, 0.00% Impervious, Inflow Depth = 0.21" for 2-yr event Inflow = 1.35 cfs @ 0.11 hrs, Volume= 0.014 of Outflow = 1.33 cfs @ 0.12 hrs, Volume= 0.014 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 19R : 4+00 - 5+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.35 fps, Min. Travel Time= 0.7 min Avg. Velocity = 0.62 fps, Avg. Travel Time= 2.7 min Peak Storage= 57 cf @ 0.12 hrs Average Depth at Peak Storage= 0.43' , Surface Width= 2.61' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 12.30 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 7' Top Width= 6.00' Length= 100.0' Slope= 0.0254 7' Inlet Invert= 364.61', Outlet Invert= 362.07' Ditch1_POA#4 Prepared by HP Inc. C r Albemarle Rainfall 2-yr Duration=7 min, Inten=4.50 Whir Printed 9/6/2022 Reach 21 R: 3+00 - 4+00 Hydrograph r -j1!11;j 1 %/ . , a r I 1 I� ,. 1 1 1 II 1 IIv 1 1 Is ilope77i I =:I !-A 0 f 7 Time (houm) ■ Inflow 0 oulflow Ditch1_POA#4 Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Prepared by HP Inc. Printed 9/6/2022 HVdroCADO 10.10-7c s/n 08126 © 2022 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: 1+00 - 2+00 Runoff Area=0.140 ac 0.00% Impervious Runoff Depth=0.35" Tc=5.0 min C=0.50 Runoff=0.42 cfs 0.004 of Subcatchment 5S: 3+00 - 4+00 Runoff Area=0.320 ac 0.00% Impervious Runoff Depth=0.24" Tc=5.0 min C=0.35 Runoff=0.67 cfs 0.006 of Subcatchment 20S: 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 21S: 4+00 - 5+00 Runoff Area=0.250 ac 0.00% Impervious Runoff Depth=0.35" Tc=5.0 min C=0.50 Runoff=0.75 cfs 0.007 of Subcatchment 22S: 2+00 - 3+00 Runoff Area=0.150 ac 0.00% Impervious Runoff Depth=0.35" Tc=5.0 min C=0.50 Runoff=0.45 cfs 0.004 of Reach 4R: 0+00 - 1+00 Avg. Flow Depth=0.29' Max Vet=1.23 fps Inflow=0.31 cfs 0.003 of n=0.035 L=100.0' S=0.0122 '/' Capacity=8.53 cfs Outflow=0.30 cfs 0.003 of Reach 6R: 1+00 - 2+00 Avg. Flow Depth=0.32' Max Vet=2.36 fps Inflow=0.72 cfs 0.007 of n=0.035 L=100.0' S=0.0390'/' Capacity=15.24 cfs Outflow=0.71 cfs 0.007 of Reach 19R: 4+00 - 5+00 Avg. Flow Depth=0.37' Max Vet=6.20 fps Inflow=2.50 cfs 0.025 of n=0.035 L=100.0' S=0.2204'/' Capacity=36.37 cfs Outflow=2.50 cfs 0.025 of Reach 20R: 2+00 - 3+00 Avg. Flow Depth=0.38' Max Vet=2.66 fps Inflow=1.15 cfs 0.011 of n=0.035 L=100.0' S=0.0390 7 Capacity=15.24 cfs Outflow=1.14 cfs 0.011 of Reach 21 R: 3+00 - 4+00 Avg. Flow Depth=0.48' Max Vet=2.53 fps Inflow=1.80 cfs 0.018 of n=0.035 L=100.0' S=0.0254'/' Capacity=12.30 cfs Outflow=1.77 cfs 0.018 of Total Runoff Area = 1.010 ac Runoff Volume = 0.025 of Average Runoff Depth = 0.30" 100.00% Pervious = 1.010 ac 0.00% Impervious = 0.000 ac Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 1S: 1+00 - 2+00 Runoff = 0.42 cfs @ 0.09 hrs, Volume= 0.004 af, Depth= 0.35" Routed to Reach 6R : 1+00 - 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 0.140 0.50 0.140 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 1S: 1+00 - 2+00 Hydrograph ______��___�11Lt31t�!`L' fJ.illlLi■ __________�__�':iJ1L•LiLL31tl�i��7� V 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 5S: 3+00 - 4+00 Runoff = 0.67 cfs @ 0.09 hrs, Volume= 0.006 af, Depth= 0.24" Routed to Reach 21 R : 3+00 - 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 0.320 0.35 0.320 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 5S: 3+00 - 4+00 Hydrograph ............ it..............��... ................. , OMEN■■■■■■■■■■■■■■■ �I V 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 20S: 0+00 -1+00 Runoff = 0.31 cfs @ 0.09 hrs, Volume= 0.003 af, Depth= 0.24" Routed to Reach 4R : 0+00 - 1+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 0.150 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, 5 0 0 Subcatchment 20S: 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 21S: 4+00 - 5+00 Runoff = 0.75 cfs @ 0.09 hrs, Volume= 0.007 af, Depth= 0.35" Routed to Reach 19R : 4+00 - 5+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 0.250 0.50 0.250 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 21S: 4+00 - 5+00 Hydrograph ■ Rurwff Time (hours) Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Subcatchment 22S: 2+00 - 3+00 Runoff = 0.45 cfs @ 0.09 hrs, Volume= 0.004 af, Depth= 0.35" Routed to Reach 20R : 2+00 - 3+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 0.150 0.50 0.150 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: 2+00 - 3+00 Hydrograph ❑ RunoH 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) Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Summary for Reach 4R: 0+00 -1+00 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 = 0.30 cfs @ 0.12 hrs, Volume= 0.003 af, Atten= 4%, Lag= 1.7 min Routed to Reach 6R : 1+00 - 2+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 1.23 fps, Min. Travel Time= 1.4 min Avg. Velocity = 0.41 fps, Avg. Travel Time= 4.1 min Peak Storage= 25 cf @ 0.12 hrs Average Depth at Peak Storage= 0.29' , Surface Width= 1.72' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 8.53 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 7' Top Width= 6.00' Length= 100.0' Slope= 0.0122 T Inlet Invert= 373.63', Outlet Invert= 372.41' 0.. 0.2 0.2 0.2 0.2 w 0. 0.1 3 3 0.1 a, 0.1 0. 0.0 0.0 0.0 0.0 Reach 4R: 0+00 -1+00 Hydrograph 0. ,1 .2. 3 .4. ,5 .0. 7 .0. .9. 10 11 .12 13. 14 15 .16 17 . 18 19 .20 21 22 23 24 Time (hours) ■ Inflow ❑ Outflow Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Summary for Reach 6R: 1+00 - 2+00 [62] Hint: Exceeded Reach 4R OUTLET depth by 0.03' @ 0.11 hrs Printed 9/6/2022 Inflow Area = 0.290 ac, 0.00% Impervious, Inflow Depth = 0.29" for 10-yr event Inflow = 0.72 cfs @ 0.11 hrs, Volume= 0.007 of Outflow = 0.71 cfs @ 0.12 hrs, Volume= 0.007 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 20R : 2+00 - 3+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.36 fps, Min. Travel Time= 0.7 min Avg. Velocity = 0.75 fps, Avg. Travel Time= 2.2 min Peak Storage= 30 cf @ 0.12 hrs Average Depth at Peak Storage= 0.32' , Surface Width= 1.90' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 15.24 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 7' Top Width= 6.00' Length= 100.0' Slope= 0.0390 7' Inlet Invert= 372.41', Outlet Invert= 368.51' Ditch1_POA#4 Prepared by HP Inc. I 0. I 0. I 0. I 0. 31 li 0. I 0. I 0. I 0. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Reach SR: 1+00 - 2+00 Hydrograph ■■■■■■■■■■■■■■■■ - ... FTTrMENEM Isom II III SOMEONE MEMEMEMEMEME ■■■■■■■■■■■■ ■■■■■■■■■■■■■■ ■■■■■■■■■■■■rWr■ir■■■■ III ■■■■■■■■■■■■■■■■■■■■■■ 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 Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Summary for Reach 19R: 4+00 - 5+00 [61] Hint: Exceeded Reach 21R outlet invert by 0.37' @ 0.12 hrs Printed 9/6/2022 Inflow Area = 1.010 ac, 0.00% Impervious, Inflow Depth = 0.30" for 10-yr event Inflow = 2.50 cfs @ 0.12 hrs, Volume= 0.025 of Outflow = 2.50 cfs @ 0.12 hrs, Volume= 0.025 af, Atten= 0%, Lag= 0.2 min Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 6.20 fps, Min. Travel Time= 0.3 min Avg. Velocity = 1.85 fps, Avg. Travel Time= 0.9 min Peak Storage= 40 cf @ 0.12 hrs Average Depth at Peak Storage= 0.37' , Surface Width= 2.20' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 36.37 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 100.0' Slope= 0.22047 Inlet Invert= 362.07'. Outlet Invert= 340.03' Reach 19R: 4+00 - 5+00 Hydrograph ❑ InFlow ❑ Outflow Time (hours) Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Summary for Reach 20R: 2+00 - 3+00 [62] Hint: Exceeded Reach 6R OUTLET depth by 0.06' @ 0.13 hrs Printed 9/6/2022 Inflow Area = 0.440 ac, 0.00% Impervious, Inflow Depth = 0.31" for 10-yr event Inflow = 1.15 cfs @ 0.11 hrs, Volume= 0.011 of Outflow = 1.14 cfs @ 0.12 hrs, Volume= 0.011 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 21 R : 3+00 - 4+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.66 fps, Min. Travel Time= 0.6 min Avg. Velocity = 0.77 fps, Avg. Travel Time= 2.2 min Peak Storage= 43 cf @ 0.12 hrs Average Depth at Peak Storage= 0.38' , Surface Width= 2.27' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 15.24 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 7' Top Width= 6.00' Length= 100.0' Slope= 0.0390 7' Inlet Invert= 368.51', Outlet Invert= 364.61' Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Printed 9/6/2022 Reach 20R: 2+00 - 3+00 Hydrograph r • ' ' AN • • 1 •I :. • , , . ICI • t t Time (homm) ■ Inflow ❑ Outflow Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 in/hr Summary for Reach 21 R: 3+00 - 4+00 [62] Hint: Exceeded Reach 20R OUTLET depth by 0.11' @ 0.13 hrs Printed 9/6/2022 Inflow Area = 0.760 ac, 0.00% Impervious, Inflow Depth = 0.28" for 10-yr event Inflow = 1.80 cfs @ 0.11 hrs, Volume= 0.018 of Outflow = 1.77 cfs @ 0.12 hrs, Volume= 0.018 af, Atten= 1 %, Lag= 0.4 min Routed to Reach 19R : 4+00 - 5+00 Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Max. Velocity= 2.53 fps, Min. Travel Time= 0.7 min Avg. Velocity = 0.64 fps, Avg. Travel Time= 2.6 min Peak Storage= 70 cf @ 0.12 hrs Average Depth at Peak Storage= 0.48' , Surface Width= 2.90' Bank -Full Depth= 1.00' Flow Area= 3.0 sf, Capacity= 12.30 cfs 0.00' x 1.00' deep channel, n= 0.035 Side Slope Z-value= 4.0 2.0 7' Top Width= 6.00' Length= 100.0' Slope= 0.0254 7' Inlet Invert= 364.61', Outlet Invert= 362.07' Ditch1_POA#4 Prepared by HP Inc. Albemarle Rainfall 10-yr Duration=7 min, Inten=5.94 Whir Reach 21 R: 3+00 - 4+00 Hydrograph Time (hours) Printed 9/6/2022 ■ Inflow ■ Outflow