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WPO201900034 Calculations 2019-12-19
UVA Encompass Health Rehabilitation Hospital COUNTY OF ALBEMARLE, VIRGINIA VSMP WPO 201900034 DESIGN CALCULATIONS & NARRATIVE MAY 249 2019 REVISED: JULY 199 2019 DECEMBER 17, 2019 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. Prepared by: John Hash, PE Timmons Group 608 Preston Ave, Suite 200 Charlottesville, VA 22903 434.327.1691 ;TH o Lie. No. 31371 12-17-Iq IkL IONA,L fCr Table of Contents Section Title Project Narrative 2 Pre and Post HydroCAD Analysis 3 LD 229 — Storm Sewer Design Computations 4 LD 204 — Storm Inlet Design Computations 5 LD 347 — Hydraulic Grade Line Computations 6 Stormwater Management Exhibit for Pond 1 7 Drainage Subbasin Map — Developed Condition, Flat Branch — Tributary to North Fork Rivanna River, UVA Research Part at North Fork Project Narrative: This project includes the construction of a rehabilitation hospital and associated parking, utilities & landscaping. This development will utilize access points directly adjacent to the property. See project titled "UVA Research Park Loop Road" for additional information. The total limits of clearing and grading are 8.11 acres. Stormwater Management: Per the document "Stormwater Management/ BMP Analysis and Floodplan Study for the UVA Research Park at Northfork" by Dewberry & Davis, October 1997, The Research Park ponds has been master planned for stormwater management for the future build -out of the research park. This development drains to the large wetpond, designated Pond 1, to the north that was designed and constructed to handle quantity and quality for the future build -out of the research park including this property development. This pond is referred to as Pond 1 on SDP 199800043. For the approved drainage areas and CN values, see Drainage Subbasin Map — Developed Condition, Flat Branch — Tributary to North Fork Rivanna River, UVA Research Park at North Fork. The proposed development was analyzed to determine the amount of impermeable and permeable surface area. These values have been incorporated into the overall CN value for the drainage area map previously approved in drawings by others. All non -pavement areas within the limits of disturbance were assumed to become to turf, though some may be restored to a forested condition. Although the measurements of each drainage divide area vary slightly due to different mapping techniques, they are assumed to be substantially similar. For the proposed drainage areas and CN values, see Stormwater Management Exhibit for Pond 1. The calculated proposed CN values are within the limits of the approved future condition. See Table 1 for a comparison of the CN values in the approved future condition and the with the proposed roadway. Note that only drainage area F2 is impacted by construction of the rehabilitation hospital. In order to ensure adequacy of the existing channel that drains to Pond 1 a dry pond system has been designed to meet channel and flood protection requirements accordingly. This system has been designed to account for future development of the adjacent University of Virginia Foundation properties to the north and south of the proposed project. Future project areas, impervious and pervious cover have been assumed for these future developments as part of the dry pond design. See Sheets C6.0 — C6.2 for further information. Approved Drainage Areas and CN Values 7/23/1997 Area (Ac.) CN Al 57.25 79 A2 12.61 64 61 54.48 72 B2 48.56 80 C1 27.38 80 C2 85.84 82 D1 12.33 78 D2 84.03 86 E1 27.8 81 E2 17.28 83 F1 66.44 91 F2 31.64 91 G1 48.9 92 G2 49.05 92 Proposed Drainage Areas and CN Values 5/24/2019 Area (Ac.) CN Al 56.35 60 A2 11.77 55 61 49.59 50 B2 47.79 67 C1 31.15 42 C2 83.90 67 D1 9.55 51 D2 81.90 70 E1 28.71 55 E2 16.91 38 F1 64.97 53 F2 30.75 54 G1 47.53 76 G2 49.25 72 Table 1 — Drainage Areas and CN Values Pre Area #1 Subcat Reach Pon Link UVA Encompass Rehab. Hospital - Pre Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 2 Area Listing (selected nodes) Area CN Description (acres) (subcatchment-numbers) 19.290 55 (is) 19.290 55 TOTAL AREA UVA Encompass Rehab. Hospital - Pre Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 3 Soil Listing (selected nodes) Area Soil Subcatchment (acres) Group Numbers 0.000 HSG A 0.000 HSG B 0.000 HSG C 0.000 HSG D 19.290 Other is 19.290 TOTAL AREA UVA Encompass Rehab. Hospital - Pre Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 4 Ground Covers (selected nodes) HSG-A HSG-B HSG-C HSG-D Other Total Ground Subcatchment (acres) (acres) (acres) (acres) (acres) (acres) Cover Numbers 0.000 0.000 0.000 0.000 19.290 19.290 is 0.000 0.000 0.000 0.000 19.290 19.290 TOTAL AREA UVA Encompass Rehab. Hospital - Pre Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 5 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment1S: Pre Area#1 Runoff Area=19.290 ac 0.00% Impervious Runoff Depth>0.19" Tc=12.0 min CN=55 Runoff=1.46 cfs 0.298 of Total Runoff Area = 19.290 ac Runoff Volume = 0.298 of Average Runoff Depth = 0.19" 100.00% Pervious = 19.290 ac 0.00% Impervious = 0.000 ac UVA Encompass Rehab. Hospital - Pre Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 6 Summary for Subcatchment 1 S: Pre Area #1 Runoff = 1.46 cfs @ 12.12 hrs, Volume= 0.298 af, Depth> 0.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 1-Yr Rainfall=2.97" Area (ac) CN Description 19.290 55 19.290 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 1S: Pre Area #1 Hydrograph I I i I I Type III 24-h r 1 1 I 1-Yr Rainfall=211.0 I Runoff Area=19.290 at 1 l i t I I I I Runoff Volume=0.2981 of runoff Depth>110.19" Tc=12.0 min I I I I CN=515 I I I i I I I I I i I I I I I i I I I I I I I I Time (hours) I I I I I I I I 1 1 1 ❑ Runoff UVA Encompass Rehab. Hospital - Pre Type // 24-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 7 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment1S: Pre Area#1 Runoff Area=19.290 ac 0.00% Impervious Runoff Depth>1.19" Tc=12.0 min CN=55 Runoff=29.08 cfs 1.907 of Total Runoff Area = 19.290 ac Runoff Volume = 1.907 of Average Runoff Depth = 1.19" 100.00% Pervious = 19.290 ac 0.00% Impervious = 0.000 ac UVA Encompass Rehab. Hospital - Pre Type 1124-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 8 Summary for Subcatchment 1 S: Pre Area #1 Runoff = 29.08 cfs @ 12.06 hrs, Volume= 1.907 af, Depth> 1.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=5.41" Area (ac) CN Description 19.290 55 19.290 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 1S: Pre Area #1 Hydrograph —-4—I-4--1 -4—I— ———I—I- 32 f L L I 30 29.o8 cfs 28 Typell-24--hr26- 104rIlRainfa L= 24 RufrofUArea=19.2Wad 1 1 1 1 22 1_1_1_ I I- I_I_1 I _I_L-1_L-_1-1_1_1_-1_I_ 20 Runoff Volume=1.9071 of 1 1 1 1 1 18 �a fl Depth>I. 9'I- -i - 1_ -Ii - �- i -11- -� - -11- 1_ 3 16 ° ��; Tc= 12.0� I l l l n I F--1 I — I r F—f I T I T 1 F 14 --i+1—'I—CC-ICC I 1 I. —I -I— —1 — -4 — I— —I— +- —1 — 12 CN;=55 ! 1 L J I L 1 1 L 1 L A I L I L 1 L 10 1 1 1 1 1 1 1 1 1 1 — — — — — — — — — — — — — — — - -——————————————- 1 1 1 1 1 1 1 1 1 1 8 I I I I I I I I I I I I I I I I I I I 1 1 6 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 —1-7-1-7-—I—I---7 — I— -I _I —F--1-7-1—T-1—I- 4 — '— — — — — + — — I — I- 2- I 1 1 1 1 1 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 Futui 8S Future Dev , OOS Encompass Rehab 14S Dry Pod Area Dry Pond A Drainage Area #4 Subcat Reach Pon Link 13L AP1 UVA Encompass Rehab. Hospital - Pond Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 2 Area Listing (all nodes) Area CN Description (acres) (subcatchment-numbers) 7.875 61 >75% Grass cover, Good, HSG B (8S, 10S, 11S, 12S, 14S) 10.835 98 Paved parking, HSG B (8S, 10S, 11S) 0.590 98 Paved roads w/curbs & sewers, HSG B (10S) 19.300 83 TOTAL AREA UVA Encompass Rehab. Hospital - Pond Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 3 Soil Listing (all nodes) Area Soil Subcatchment (acres) Group Numbers 0.000 HSG A 19.300 HSG B 8S, 10S, 11 S, 12S, 14S 0.000 HSG C 0.000 HSG D 0.000 Other 19.300 TOTAL AREA UVA Encompass Rehab. Hospital - Pond Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 4 Ground Covers (all nodes) HSG-A HSG-B HSG-C HSG-D Other Total Ground Subcatchment (acres) (acres) (acres) (acres) (acres) (acres) Cover Numbers 0.000 7.875 0.000 0.000 0.000 0.000 10.835 0.000 0.000 0.000 0.000 0.590 0.000 0.000 0.000 0.000 19.300 0.000 0.000 0.000 7.875 >75% Grass cover, Good 8S, 10 S, 11 S, 12 S, 14 S 10.835 Paved parking 8S, 10 S, 11 S 0.590 Paved roads w/curbs & sewers 10 S 19.300 TOTAL AREA UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 5 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment8S: Future Dev 1 Runoff Area=4.950 ac 70.00% Impervious Runoff Depth>1.71" Tc=6.0 min CN=87 Runoff=14.47 cfs 0.706 of Subcatchment10S: Encompass Rehab Runoff Area=8.120 ac 56.90% Impervious Runoff Depth>1.35" Tc=6.0 min CN=82 Runoff=18.98 cfs 0.916 of Subcatchment11S: Future Dev 2 Runoff Area=4.460 ac 74.89% Impervious Runoff Depth>1.87" Tc=6.0 min CN=89 Runoff=14.11 cfs 0.695 of Subcatchment12S: Drainage Area#4 Runoff Area=0.270 ac 0.00% Impervious Runoff Depth>0.35" Flow Length=1,270' Tc=8.3 min CN=61 Runoff=0.10 cfs 0.008 of Subcatchment14S: Dry Pond Area Runoff Area=1.500 ac 0.00% Impervious Runoff Depth>0.35" Tc=6.0 min CN=61 Runoff=0.67 cfs 0.044 ai Pond 10P: Dry Pond A Peak Elev=531.83' Storage=100,069 cf Inflow=48.10 cfs 2.361 of Outflow=0.06 cfs 0.063 of Link 13L: AN Inflow=0.15 cfs 0.071 of Primary=0.15 cfs 0.071 of Total Runoff Area = 19.300 ac Runoff Volume = 2.369 of Average Runoff Depth = 1.47" 40.80% Pervious = 7.875 ac 59.20% Impervious = 11.425 ac UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 6 Summary for Subcatchment 8S: Future Dev 1 Runoff = 14.47 cfs @ 11.97 hrs, Volume= 0.706 af, Depth> 1.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 1-Yr Rainfall=2.97" Area (ac) CN Description 3.465 98 Paved parking, HSG B 1.485 61 >75% Grass cover, Good, HSG B 4.950 87 Weighted Average 1.485 30.00% Pervious Area 3.465 70.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 8S: Future Dev 1 Hydrograph 16 1 - ! I - - + - -1 L 15 I I I 4.47 cfs 14 1TypeI I 24-hr 13 - - - - - - 67' 1:Y Rainfall`2:1- --7-1-T-1-7---7 12 - +Runoff A'hea=�95-0 -aid 11 -AL I L 1 L J I -' L 1 I 1 L 1 L 10 1 1 1 1 1 I I Runoff Volumle=0.706 of 9 1 1 1 1 1 1 1 1-1 - - *"off IIDgpth1:,'71 LL8 -1-I-+-1-r-1-r-i- 1 _1-r-I-I-Tc=F.'O Min 6 _I _ 1_ 1 _ I _ L _1 _ L J _ I_ _I -I_L _t_ 1_ 1 _ 1 _C N_:87 5 q - - - - - - I - - - - - - - - - - - - - - - - - - - - - - - - 3 l l 1 7----1-ram-1 -I -1_ -I--1 I T I _F 1 F 2 , _I_+-1-4--I-+-4-1-+ -1-k---4-1- + -1- 1- -1 - 1_ 1 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 UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 7 Summary for Subcatchment 10S: Encompass Rehab Area Runoff = 18.98 cfs @ 11.97 hrs, Volume= 0.916 af, Depth> 1.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 1-Yr Rainfall=2.97" Area (ac) CN Description 0.210 61 >75% Grass cover, Good, HSG B 1.460 61 >75% Grass cover, Good, HSG B 0.590 98 Paved roads w/curbs & sewers, HSG B 1.830 61 >75% Grass cover, Good, HSG B 4.030 98 Paved parking, HSG B 8.120 82 Weighted Average 3.500 43.10% Pervious Area 4.620 56.90% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, 21 1£ 1E 17 1E 1E 14 1� y 122 11 0 1c LL Subcatchment 10S: Encompass Rehab Area Hydrograph i- 1- T -1- T -1 7-1 1- T -1 -1- T -1- T -I- -------------- T -� -I- 7 I I L 1 L-1 1 -1 -4 - 1- 4 - I - T -1 - -4 - 1- 4 - -1 rt -F 1 F -1 -F - - 1- T -1- T -1 1 1 1 11 I 1 I I - T -1 - 1 I I I- 7 -I 1 I I I - - - - Type II 24=hT 11 r RainfelN=2:071 Runbff Mee=8:120 -ad I I I I II I RuntoffLVo u.mme=0.916- f -k n-I ff 1De th>1. 5'' - - 1 Tc=6.0-hiih T 7 CU;=-82 I i I T T OR 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 UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 8 Summary for Subcatchment 11S: Future Dev 2 Runoff = 14.11 cfs @ 11.97 hrs, Volume= 0.695 af, Depth> 1.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 1-Yr Rainfall=2.97" Area (ac) CN Description 3.340 98 Paved parking, HSG B 1.120 61 >75% Grass cover, Good, HSG B 4.460 89 Weighted Average 1.120 25.11 % Pervious Area 3.340 74.89% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 11S: Future Dev 2 Hydrograph I I I I I I I I I T 1 ■Runoff 15 14.11 cfs- 14 _ I_ _ 1 _ _I 1 Type 11 24-h-r - 13 1 1 1 1 1 1 �, �'ainfall=2:07'j 1 I 12 11 ' + 1 1 1 1 - - Runoff Aced=4.460 ad fi .,_I_-T_I_r_I 1_-1_r_. 10 + 1 1 - RunoffL-Voktme=;0.695-af w 9- _1_ I 1 _I_ _I _ _ I_ _I_ _I I I I I 1 I I I I _ u I �n�ff 1D p h>1 .071 8 7 --- 1 1 ------ - - - - -- 1 1 1 1 1 1 1 1-- 1 1� Tc=6.'0 iih -T 1 + I T 1 F-1 I 7 1 -F 1 F -( I + I 11 - F 6 -4 1 I 1 + --I I 1 +� - + 1 �-4 I + 1 GN-7-89 5 ' _ I_ 1 _1_ 1 _I _ L J _ 1_ 1 _1 _I _ L _I _ I. I L. I I. _I - _ 4 2 1-7 -1 T- 1: r r 7 I T- 1 1 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) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 9 Summary for Subcatchment 12S: Drainage Area #4 Runoff = 0.10 cfs @ 12.03 hrs, Volume= 0.008 af, Depth> 0.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 1-Yr Rainfall=2.97" Area (ac) CN Description 0.270 61 >75% Grass cover, Good, HSG B 0.270 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 100 0.5000 0.65 Sheet Flow, Grass: Short n= 0.150 P2= 3.59" 0.2 50 0.5000 4.95 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.5 1,120 0.0520 3.42 Shallow Concentrated Flow, Grassed Waterwav Kv= 15.0 fos 8.3 1,270 Total 0.115 0.11 0.105 0.1 0.08 0.075 0.07 N 0.065 0.06 a 0.055 LL 0.05 0.035 . 0.03 0.025 0.02 0.015 0.01 0.005 0 0 Subcatchment 12S: Drainage Area #4 Hydrograph I I_ _I _ C TY I1-2_ 4;-hr 1 1 I 1 I- r Railn :"7m1 Ruftoff-- r6&-01270:1ac RUriofMoIume-7 0.0G&af Rio+e0.35'- Flow-L-ncith=1,2701- T Ta$&- nin —I 1 I 7—I—I-rt—I -r I 1 T I 7 11- -I - 1- 7 17 - - 7 — I — r —I — I— I — I — 7 —I i I ❑Runoff I—L I—L 1 —1 1 I — L I ——1-1_-4-1 J--1—L _ 7 —1— T- —1 - —I — 1— 7 —1— — — 7 —1 I— — 1— 7 - — — + 1——1-1-4-1-4--1—L-4 7 —I— F —1— I— I —I— 7 —1— L-1 1— 1— I 4 1 4- 1 L-4 I — —I —I—-I—I-7Ir7 I I I I I I I 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) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 10 Summary for Subcatchment 14S: Dry Pond Area Runoff = 0.67 cfs @ 12.00 hrs, Volume= 0.044 af, Depth> 0.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 1-Yr Rainfall=2.97" Area (ac) CN Description 1.500 61 >75% Grass cover, Good, HSG B 1.500 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 14S: Dry Pond Area Hydrograph i- I T I -TT I TI TT -IT T-I T- 0.75 4 1 T 1 1-4 — I— -k —1 — -4 — ❑Runoff 0.7 o.67 cis I I I I I I I I I I 0.65 Type 111 24+h n 1 1 1 1 1 0.6 1-� alma 2.97" � r T F i -I- T 1- - I441= 0.55 yam,, C Ruho 1 KI Ca� :500 lad- 1 - I- L - L - 0.5 1 1 Runoff-Volume=0.044a 0.45 0.4 RU�10ff �e �>0.35" T 1 I- T T 1 T T 0.35 E c:�S 10-Mi - LL 0.3 1 CN 1 1 0.25 T1T- T1��- 0.2 LI, 0.15 01 1 1 F 1 rt -1- t -I- r- -1- T -r- I I ///////////////////////////////////////////% //////////////%, UVA Encompass Rehab. Hospital - Pond Type 11 24-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 11 Summary for Pond 10P: Dry Pond A Inflow Area = 19.030 ac, 60.04% Impervious, Inflow Depth > 1.49" for 1-Yr event Inflow = 48.10 cfs @ 11.97 hrs, Volume= 2.361 of Outflow = 0.06 cfs @ 24.00 hrs, Volume= 0.063 af, Atten= 100%, Lag= 721.7 min Primary = 0.06 cfs @ 24.00 hrs, Volume= 0.063 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 531.83' @ 24.00 hrs Surf.Area= 22,623 sf Storage= 100,069 cf Plug -Flow detention time= 482.4 min calculated for 0.063 of (3% of inflow) Center -of -Mass det. time= 238.5 min ( 1,063.2 - 824.7 ) Volume Invert Avail.Storage Storage Description #1 526.00' 349,073 cf Custom Stage Data (Prismatic)Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic -feet) (cubic -feet) 526.00 6,000 0 0 527.00 14,737 10,369 10,369 528.00 16,261 15,499 25,868 529.00 17,841 17,051 42,919 530.00 19,478 18,660 61,578 531.00 21,171 20,325 81,903 532.00 22,921 22,046 103,949 533.00 24,727 23,824 127,773 534.00 26,590 25,659 153,431 535.00 28,509 27,550 180,981 536.00 30,485 29,497 210,478 537.00 32,518 31,502 241,979 538.00 34,606 33,562 275,541 539.00 36,752 35,679 311,220 540.00 38,954 37,853 349,073 Device Routing Invert Outlet Devices #1 Primary 521.00' 21.0" Round Culvert L= 89.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 521.00' / 517.11' S= 0.0437'/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 2.41 sf #2 Device 1 526.00' 1.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 532.50' 60.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.06 cfs @ 24.00 hrs HW=531.83' (Free Discharge) t1=Culvert (Passes 0.06 cfs of 28.85 cfs potential flow) 12=Orifice/Grate (Orifice Controls 0.06 cfs @ 11.58 fps) 3=0 rifi ce/G rate ( Controls 0.00 cfs) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 12 Pond 10P: Dry Pond A Hydrograph L -1- 4- - - 1- 4 -1- L -1- L 1 - I - -1 -1-4 - - - ❑ Inflow ' I I I I I I I 1 1 48.1°cfs 1 1 ' 1 El Primary 50 ' -T -I- > -1- rt -1- -i- Inflow Area=19.030iac 45 ' ' - I � Oeak E�e�r—�3� i I .Q 40 I - I - I -I - I- I - I - I I - I - I _ I_ I I I � Imo+ J� _ ora�er �il i I�O9OV 1 35 -4 1- 1-4 -1- -4 I- 14 I�'- ' 30 1- F 1 F I 1- I F T 1 F 0 25 20 -I- J- --1 _ I- J _I_ -J -I- I- L - 1- 4 -1- L --I I- � I I I I I I I I I I I I I I I I I I I 15--fi�--fi--��-I- 10'/ I I I I I I I I I I I I I I I i I I I I I I I I I I I I i 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) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 1-Yr Rainfall=2.97" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 13 Summary for Link 13L: AN Inflow Area = 19.300 ac, 59.20% Impervious, Inflow Depth > 0.04" for 1-Yr event Inflow = 0.15 cfs @ 12.04 hrs, Volume= 0.071 of Primary = 0.15 cfs @ 12.04 hrs, Volume= 0.071 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Link 13L: AN Hydrograph 0.16 — — — — — — — — — — — — — -� Inflow-Area=19.300 0.15 0.14 4 —1— -4 —1— — 1— —I 0.13 0.12 L _I_ L _I_ L J_ 1_ 1 _I 0.11 1 I I 1 1_ I _ 0.1 _ _1_ _1_ _ _I T 0.09 0 0.08 . U- 0.07 T T T T -1T 0.06 T TT TT I- - I - t- - I - t- � - I- -1- - 0.05 I -1- 4- -1- - 1- + -I 0.04 0.03 L —I_ L L _I_ L J_ 11 i�j 0.02 ❑ Inflow f ❑ Primary IT�IT�TTTIt -1- - 4 -I- --A -I- -I- - L-1 _I_ L J _I_ L L _I_ 1_ I I I I I I I I I I I l I I I l i l I I f: I 1 -I - l- -4 -1 I I - L - - I I I 1- �- -j 1-1_L-i-1-LJ_I-LL_I UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-YrRainfall=5.41" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 14 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment8S: Future Dev 1 Runoff Area=4.950 ac 70.00% Impervious Runoff Depth>3.95" Tc=6.0 min CN=87 Runoff=32.14 cfs 1.630 all Subcatchment10S: Encompass Rehab Runoff Area=8.120 ac 56.90% Impervious Runoff Depth>3.44" Tc=6.0 min CN=82 Runoff=47.22 cfs 2.331 of Subcatchment11S: Future Dev 2 Runoff Area=4.460 ac 74.89% Impervious Runoff Depth>4.16" Tc=6.0 min CN=89 Runoff=30.06 cfs 1.547 of Subcatchment12S: Drainage Area#4 Runoff Area=0.270 ac 0.00% Impervious Runoff Depth>1.62" Flow Length=1,270' Tc=8.3 min CN=61 Runoff=0.69 cfs 0.036 of Subcatchment14S: Dry Pond Area Runoff Area=1.500 ac 0.00% Impervious Runoff Depth>1.62" Tc=6.0 min CN=61 Runoff=4.16 cfs 0.202 ai Pond 10P: Dry Pond A Peak Elev=533.14' Storage=131,163 cf Inflow=113.45 cfs 5.710 of Outflow=26.16 cfs 3.018 of Link 13L: AN Inflow=26.43 cfs 3.054 of Primary=26.43 cfs 3.054 of Total Runoff Area = 19.300 ac Runoff Volume = 5.746 of Average Runoff Depth = 3.57" 40.80% Pervious = 7.875 ac 59.20% Impervious = 11.425 ac UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 15 Summary for Subcatchment 8S: Future Dev 1 Runoff = 32.14 cfs @ 11.97 hrs, Volume= 1.630 af, Depth> 3.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=5.41" Area (ac) CN Description 3.465 98 Paved parking, HSG B 1.485 61 >75% Grass cover, Good, HSG B 4.950 87 Weighted Average 1.485 30.00% Pervious Area 3.465 70.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 8S: Future Dev 1 Hydrograph 36 I I I i I I I i I I I I — 34 _ 1— t —I— t —1 _ � - _ 1— 321acfs -1 — t —1 — -t — I— t — 1- 32 -f-,i-+-I- -- -4-iType1124-hr 30 -' 1 1 --it 28 -1- --I - I- 1 —1— 0-Yr Ra-infafl=5411- 26 _ 1_ L -I- L -1- L -J _ I_ L -I- Runoff Area=4.950 arc 24 I 1- i Runoff Volume=1.630 of 22 1 1 11 111 I - -I - -1- -1- -unoff 61 3 18 I- 1Dgpth>3.J51- — — — �° 16 I Tc7--6-0�h 14 1 I II I II T G1I 12 10rtfi1��IrtIfi—r�rtfi-1� 8 1 t —1—t 1� I -- 1 1+——— I— + —I—- 6 -4 1 4 1 1 --I 1 4 1 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 UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 16 Summary for Subcatchment 10S: Encompass Rehab Area Runoff = 47.22 cfs @ 11.97 hrs, Volume= 2.331 af, Depth> 3.44" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=5.41" Area (ac) CN Description 0.210 61 >75% Grass cover, Good, HSG B 1.460 61 >75% Grass cover, Good, HSG B 0.590 98 Paved roads w/curbs & sewers, HSG B 1.830 61 >75% Grass cover, Good, HSG B 4.030 98 Paved parking, HSG B 8.120 82 Weighted Average 3.500 43.10% Pervious Area 4.620 56.90% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 10S: Encompass Rehab Area Hydrograph --- -- - -+-i- --- - -- 52- 5048 ' -J _ 1_ 1 _ I _ L _I _ L J _ I- 1 47.22ofs _I _ L _I _ L -J _ IT 1�_pI _ -1 _ L 46 ' -4 1 4 1 4- 1 �� 1 4 I �L I �� -t ITy�pe]F2-4-hr 44 42 -I T T- 1 F F 7 I T �� T T �0 �(r Rainf�H�511 - i 40 I 1 I L 1 L J I L 1 Lp 1 L 1 L 38 - - I- - I - -I - - - I- - I /� -R-undff Ate �.120 at 36 ' ( - I - I I I I I I _ I I I I I I I I I I 32 -I I -I- L 1 LI -I - - - I I Ru-n off -Yro k fte=2.311-af -1 - �30 ' 28 - _I - - O-� �o� I-De th-_ >- 3.44 024 -4-1-4-1-4--1- -4-1-4- I 1-�-1-�-4-I-Tc-6.0M_111 `L 22 rt rt fi r rt fi- r rt rt 20 1 1_ 1 1 I_ 1 - - 1_ I 1 I 1_ 1 18 - -I - -1 - - . -I - -1 _ 1_ - -1 _ - 16', -4 1 4 1+- 1 L� 1 4- -1- -I-k-4 I C I 1- 1 L 14 -1-1-7-1-r-I F-�-1-7 -I-1 I r7-I-T-I-r-1-F- 1 10 1 1 L 1 L-A I I L 1 L A I I I L 1 L 8I- 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 UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 17 Summary for Subcatchment 11S: Future Dev 2 Runoff = 30.06 cfs @ 11.96 hrs, Volume= 1.547 af, Depth> 4.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=5.41" Area (ac) CN Description 3.340 98 Paved parking, HSG B 1.120 61 >75% Grass cover, Good, HSG B 4.460 89 Weighted Average 1.120 25.11 % Pervious Area 3.340 74.89% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 11S: Future Dev 2 Hydrograph i 1 I I 1 1 1 1 1 I I I I I � 1 I I I I I I ❑Runoff 32 rt fi 30.06 cfs — — — rt T 30 T pelt-24-hy 287 L I L- 1- I -I �-O 1 ry! H -Yr 26 - I - II Rainfall=J.01 24 _ 1 _ -'- —I — 1 'Runoff Area=4.460 arc 22 - :. ' I— I— 1 1 I I I �I I I I— I I 1 I I 1 1 I I I I I I E I I I -Runoff Votunppewt.54U of 20 L) 18 -t - 1- -1w rt -1- r -1 - r- - 1- 7 -1 r "1-"Off b �l 61 ID'I`1t Tc- a 14 1 1 L_ I L I L-1 1 L_ I — L 1— —— I L —!-I I I 12 ' I_ 1 I 1� _ 1 1_ 11_ I I I I I CN�89 10 ' I I I I I I I I I I — — I I I I I I I —————————————---- A I 1 1 1 1 1 — 1 1 — 1 1 4- 1-4 1-4-1— L 1 -A I — —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) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 18 Summary for Subcatchment 12S: Drainage Area #4 Runoff = 0.69 cfs @ 12.01 hrs, Volume= 0.036 af, Depth> 1.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=5.41" Area (ac) CN Description 0.270 61 >75% Grass cover, Good, HSG B 0.270 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 100 0.5000 0.65 Sheet Flow, Grass: Short n= 0.150 P2= 3.59" 0.2 50 0.5000 4.95 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.5 1,120 0.0520 3.42 Shallow Concentrated Flow, Grassed Waterwav Kv= 15.0 fos 3 -L LL 8.3 1,270 Total 0. 0. 0.1 E 0.1 Subcatchment 12S: Drainage Area #4 Hydrograph I L L L 1 L I I I I I I I I I I I I I 0.69 cfs Typell24ohr I T 1 L --Yr-----11----�-- Run-off-Arda*01.27Q1ad—1 I I I I I I Runoff Volume=0.03 -af Rupo -'P�>11.§�r Fhw 1Uncith=_ 11,2701 Tri�8.3-min rt i itNL6'11_I I I I I I I I I I I I I I I I I I ❑Runoff 4 —1— 4- —1 I — 1— -4 —1— 4- —1 I — - I ( I I — —I — —1 I I — — I I I— —I I — I I I i ILII—rtI�I1— I I I I I I I i — -- --I— —1-4--1—l—-1 0 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) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 19 Summary for Subcatchment 14S: Dry Pond Area Runoff = 4.16 cfs @ 11.98 hrs, Volume= 0.202 af, Depth> 1.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=5.41" Area (ac) CN Description 1.500 61 >75% Grass cover, Good, HSG B 1.500 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 14S: Dry Pond Area Hydrograph i l l l l l l l II I I I I I I I I ( I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ®1 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I - - - I- Type ll-2 fir 107Yr Rainfall=5.14117 Runbff Awea=1.5-00 arc I I -I � I I - Runoff lVolume=0.202 of Ou;noff IIDippth>1.1,62" rt Tc=6.0 t171 h CN= 6I 0 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 UVA Encompass Rehab. Hospital - Pond Type /124-hr 10-YrRainfall=5.41" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 20 Summary for Pond 10P: Dry Pond A Inflow Area = 19.030 ac, 60.04% Impervious, Inflow Depth > 3.60" for 10-Yr event Inflow = 113.45 cfs @ 11.97 hrs, Volume= 5.710 of Outflow = 26.16 cfs @ 12.14 hrs, Volume= 3.018 af, Atten= 77%, Lag= 10.3 min Primary = 26.16 cfs @ 12.14 hrs, Volume= 3.018 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 533.14' @ 12.14 hrs Surf.Area= 24,981 sf Storage= 131,163 cf Plug -Flow detention time= 223.0 min calculated for 3.011 of (53% of inflow) Center -of -Mass det. time= 111.7 min ( 912.9 - 801.2 ) Volume Invert Avail.Storage Storage Description #1 526.00' 349,073 cf Custom Stage Data (Prismatic)Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic -feet) (cubic -feet) 526.00 6,000 0 0 527.00 14,737 10,369 10,369 528.00 16,261 15,499 25,868 529.00 17,841 17,051 42,919 530.00 19,478 18,660 61,578 531.00 21,171 20,325 81,903 532.00 22,921 22,046 103,949 533.00 24,727 23,824 127,773 534.00 26,590 25,659 153,431 535.00 28,509 27,550 180,981 536.00 30,485 29,497 210,478 537.00 32,518 31,502 241,979 538.00 34,606 33,562 275,541 539.00 36,752 35,679 311,220 540.00 38,954 37,853 349,073 Device Routing Invert Outlet Devices #1 Primary 521.00' 21.0" Round Culvert L= 89.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 521.00' / 517.11' S= 0.0437'/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 2.41 sf #2 Device 1 526.00' 1.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 532.50' 60.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=25.84 cfs @ 12.14 hrs HW=533.13' (Free Discharge) t1=Culvert (Passes 25.84 cfs of 30.68 cfs potential flow) 12=Orifice/Grate (Orifice Controls 0.07 cfs @ 12.82 fps) 3=0 rifi ce/G rate (Weir Controls 25.77 cfs @ 2.60 fps) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-Yr Rainfall=5.41 " Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 ©2017 HydroCAD Software Solutions LLC Page 21 Pond 10P: Dry Pond A Hydrograph T -1- --1 -1 - I T -- - I - T - - I- + -I - 4 - - � ' 7 - I - T -1 - 1- T -1 - 1- T - I - T - - 1- T -1 - 1- T -1 - T 7 -1 - T -1 - ❑ Inflow 125 , II- 11a.a5 cfs II- I — — — 11Inflow11Area=119.030I ❑ Primary 25 4 _I _ + -1 + _1 + _1= = ac - - 1 110 105 ' , T I — — T-1 — — — — T — — — T — — — — — - T I T — — — �- eA EFev=533.:1 100_' , � -1- 1- -1- -1-1- -1- 1- -1- - 95 '' 90 ' I -11- T -1 - 11- -I- 1 �+-� -11- ��7�o a � 11J ,�1I� -&if 85_' i — — — — — — — — — — — — — — — — 80 ', 7 - I - --I - I - -1 - 1- 4 - I - -I- I- 75.' rt-- --rt -I-rt I T- T I-1-I t_I N 70 ', - - - L J I_ - - L - - I_ L - - - - L I_ I_ L 65 ' _ _ _ -1 _ _I _ _ _ _I _ _I _ _I _ _ c 60_ , T -1- -1- + -1 - 1- + -1- 1 T --1I + 1 T 4 -1- --1LL 55-' T-I- T_T_ - I T I_I 7 I_ T__I_T7__I_T_T__ 50_' 45 ' 1-1+TJ_I_1-1_T1_1_ _I_TT__I -1-L-_1_1-1 L1-1_L-1 40 -' 4 -1- i- -1 - I - + -1 - 1- + - - - - - - + -1 - I- - I - - - 35 ' -T -I- T--1T T TT TT T--1 30 ' , — — — — — — — — — — — — 21.11 cI — — — — — — — — — — — — — — — — 25- 20', fit Ifi--I-- fi�1----T1 15='' - - - - - - - - 10- 5' 0` 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) UVA Encompass Rehab. Hospital - Pond Type 1124-hr 10-YrRainfall=5.41" Prepared by Timmons Group Printed 12/17/2019 HydroCAD® 10.00-20 s/n 06538 © 2017 HydroCAD Software Solutions LLC Page 22 Summary for Link 13L: AN Inflow Area = 19.300 ac, 59.20% Impervious, Inflow Depth > 1.90" for 10-Yr event Inflow = 26.43 cfs @ 12.14 hrs, Volume= 3.054 of Primary = 26.43 cfs @ 12.14 hrs, Volume= 3.054 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Link 13L: AN Hydrograph o Inflow ❑ Primary 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) LD-229 STORM SEWER DESIGN COMPUTATIONS STORM FREQUENCY 10 PROJECT: UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL LOCATION: ALBEMARLE, COUNTY COUNTY: Charlottesville Designed by: A. MABEE Checked by: UNITS ENGLISH PIPE NO. FROM POINT TO POINT DRAIN, AREA "A" Acre 3 RUNOFF COEFF. "C" 4 CA INLET TIME Minutes 7 RAIN FALL7FS" WHr 8 RUNOFF INVERT ELEVATIONS LENGTH of Pipe Ft. 12) SLOPE Ft./Ft. 13) SIZE (Dia. Or Span/Rise) In. (14) SHAPE Number of Pipes Capacity CFS 15 Friction Slope. FUFt. NORMAL FLOW FLOW TIME INCRE- MENT (5) ACCUM- ULATED 6 FCFSQ UPPER END 10 LOWER END H 1) Depth of Area of Hm Vn En INCRE- ACCUMU Flow, do Flow, An MENT -LATED REMARKS Ft. SgFt Ft. Ft/Sec Ft. Minutes Minutes (16) 17 17 18 REFERENCE 1 STA. REFERENCE 2) STA. 101 102 100 0.00 0.00 0.00 5.33 6.43 0.00 26.67 484.17 484.00 16.96 0.01002 30 Circular 1 44.48 0.00370 1.40 2.82 0.67 9.47 2.79 0.03 5.36 103 104 102 0.00 0.00 0.00 5.28 6.45 0.00 26.67 491.50 484.27 79.54 0.09090 21 Circular l 51.75 0.02510 0.89 1.23 0.44 21.68 8.19 0.06 5.34 105 106 1104 0.00 1 0.00 0.00 1 5.18 6.48 0.00 26.67 506.00 493.37 1 126.93 0.099501 21 Circular I 1 1 54.15 0.025101 0.87 1.19 0.44 22.43 8.68 0.09 5.28 107 108 106 0.00 0.00 0.00 5.10 6.51 0.00 26.67 517.00 507.79 102.88 0.08954 21 Circular 1 51.37 0.025101 0.90 1.24 0.44 21.56 8.11 0.08 5.18 109 110 108 0.00 0.00 0.00 5.00 0.00 26.16 521.00 517.11 89.24 0.04356 21 Circular 1 35.83 0.024201 1.11 1.61 0.50 16.26 5.21 0.09 5.09 195 196 194 0.00 0.00 5.52 7.68 5.78 0.00 48.76 531.04 527.00 31.49 0.12834 36 Circular 1 258.86 0.004701 0.88 1.74 0.50 28.11 13.15 0.02 7.70 197 198 196 0.00 0.00 5.52 7.62 5.79 0.00 48.76 538.75 533.19 82.03 0.06771 36 Circular 1 189.02 0,00470 1.04 2,19 0.58 22.34 8.79 0.06 7.68 199 200 198 0.00 0.00 5.52 7.54 5,81 0.00 48.76 540.07 538.75 66.18 0.02001 36 Circular 1 94.35 0.00550 1.53 3.62 0.76 13.46 4.34 0,08 7.62 201 202 200 0.00 0.00 5.52 7.49 5.83 0.00 49.76 541.51 540.07 53.38 0.02692 36 Circular 1 119.55 0.00470 1.34 3.06 0.70 15.95 5.29 0.06 7.54 203 204 202 0.00 0.00 5.52 1 7.47 5.83 0.00 48.76 544.00 542.84 1 16.64 0.069841 36 Circular 1 190.95 0.00470 1.03 2.16 0.57 22.59 8.96 0.01 7.49 205 206 204 0.00 0.00 5.52 1 7.46 5.83 0.00 48.76 550.89 549.55 19.27 0.06919 36 1 Circular 1 1 190.06 0.00470 1.04 2.17 0.58 22.51 8.91 0.01 7.47 207 208 206 0.15 0.83 0.12 5.52 7.45 5.84 0.00 48.76 559.15 557.87 16.02 0.07971 36 Circular 1 204.00 0.00470 1.00 2.06 0.56 23.69 9.71 0.01 7.46 209 210 208 0.00 0.00 3.48 7.09 5.93 0.00 36.89 561.15 560.30 171.29 0.00500 36 Circular 1 51.09 0.002701 1.89 4.69 0.85 7.87 185 0.36 7.45 211 212 210 0.53 0.69 0.37 2.76 6.71 6.03 0.00 33.08 562.23 561.25 156.36 0.00624 36 Circular 1 57.08 0.00220 1.64 3.95 0.79 9.37 2.73 0.31 7.02 213 214 212 0.48 0.60 0.29 1.38 6.31 6.14 0.00 24.72 563.32 562.33 199.00 0.00500 30 Circular 1 31.42 0.00320 1.67 3.49 0.73 7.09 2.45 OA7 6.78 215 216 214 0.43 0.76 0.32 1.09 6.16 6.18 0.00 22.86 563.82 563.42 52.75 0.00751 30 Circular 1 38.51. 0.00270 1.39 2.80 0.67 8.18 2.43 0.11 6.27 217 218 216 0.13 0.89 0.12 0.76 6.04 6.22 0.00 20.79 564.12 563.82 39.93 0.00749 24 Circular 1 1 21.21 0.00750 1.60 2.70 0.61 7.70 2.52 0.09 6.13 219 220 218 0.29 0.63 0.18 2.46 5.35 6.43 0.00 16.08 566.20 564.22 132.11 0.01500 24 Circular 1 30.02 0.00450 1.04 1.65 0.51 9.72 2.51 0.23 5.58 221 222 220 0.00 0.00 2.28 5.14 6.50 0.00 14.90 567.44 566.30 75.88 0.01500 24 Circular 1 30.02 0.00380 1.00 1.56 0.50 9.54 2.41 0.13 5.28 223 224 222 4.95 0.74 3.64 3.64 5.00 6.54 0.00 23.80 568.36 567.54 53.41 0.01539 24 Cirwlar 1 30.40 0.009801 1.33 2.22 0.58 10.71 3.11 0.08 5.08 301 302 208 0.13 0.86 0.11 1.83 6.23 6.16 0.00 11.83 560.85 560.20 65.47 0.01000 24 Circular 1 24.51 0.002401 0.98 1.53 0.49 7.73 1.91 0.14 6.37 303 304 302 0.05 0.87 0.05 1.71 5.89 6.26 0.00 11.14 562.48 560.95 152.50 0.01000 18 Circular 1 11.38 0.01000 1.20 1.52 0.46 7.34 2.04 0.35 6.23 305 306 304 1 0.41 1 0.73 0.30 1.45 5.65 6.54 0.00 9.51 563.60 1 562.58 1 102.35 0.00999 18 Circular l 11.37 0.00730 1.01 1.32 0.44 7.21 LN 0.24 5.89 307 308 306 0.07 0.36 0.03 1.16 5.40 6.42 0.00 7.41 564.75 563.70 105.01 0.010001 18 Circular 1 1 11.38 0.00440 0.88 1.08 0.41 6.86 1.61 0.26 5.65 309 310 308 0.17 0.41 0.07 1.13 5.08 6.52 0.00 Z37 566.01 564.85 116.50 0.01000 18 Circular 1 11.38 0.00440 0.88 1.08 0,41 6.85 1.61 0.28 5.36 315 316 304 0.28 0.38 1 0.11 0.21 1 5.17 1 6.54 0.00 1.40 566.51 565.48 99.43 0.01038 12 Circular 1 1 3.93 0.00140 0.41 0,31 0.22 4.59 0.74 0.36 5.53 317 316 0.12 0.90 0.11 0.11 5.00 6.54 0.00 0.71 569.59 567.01 64.49 0.03996 6 Circular 1 1.22 0.01420 0.27 0.11 0.13 6.43 0.92 0.17 5.17 401 402 208 0.22 0.39 0.09 0.09 5.00 6.54 0.00 0.56 568.30 565.04 74.22 0.04399 12 Circular 1 8.10 0.00o2ol 0.18 0.10 0.11 5.93 0.72 0.21 5.21 501 210 0.40 0.90 0.36 0.36 5.00 6.54 0.00 2036 569.50 565,47 46.82 0.08605 8 Circular 1 3.84 0.03390 0.38 010 0.18 11.56 2.45 0.07 5.07 601 602 212 0.00 0.00 1.02 5.94 6.25 0.00 6.57 564A7 563.19 42.85 0.02987 12 Circular 1 6.67 0.03030 0.81 0.68 0.30 9.68 2.26 0.07 6.01 603 606 602 0.09 0.50 0.05 1.02 5.63 6.34 0.00 6.49 1 566.53 565.33 119.67 10.01003 15 Circular 1 7.01 0.00900 0.95 1.00 0.38 6.49 1.60 0.31 5.94 607 608 606 0.09 0.50 0.05 0.05 5.00 6.54 0.00 1 0.31 568.98 568.42 55.67 0.01001 8 Circular 1 1.31 0.00060 0.22 0.10 0.12 3.07 0.37 0.30 5.30 609 610 606 0.09 1 0.50 0.05 0.50 5.23 6.47 0.00 3.21 568.17 566.63 154.23 0.00999 12 1 Circular 1 1 3.86 0.00720 0.70 0.59 0.30 5.50 1.17 0.47 5.70 611 612 610 0.09 0.50 0.05 0.05 5.00 6.54 0.00 0.31 568.98 568.27 71.25 0.00996 12 Circular 1 3.85 0.00010 0.19 0.10 0.12 2.94 0.33 0A0 5.40 801 802 218 0.17 0.81 1 0.14 0.46 1 5.85 6.27 0.00 4.89 564.63 564.22 54.65 0.00750 18 Circular 1 9.86 0.00190 0.75 0.88 0.37 5.57 1.23 0.16 6.02 803 804 802 0.31 0.74 0.23 0.28 5.80 6.29 0.00 4.01 564.84 564.73 14.62 0.00752 18 Circular 1 9.87 0.001301 0.67 0.76 0.35 5.30 1.10 0.05 5.84 805 806 804 0.18 0.35 0.06 0.39 5.33 6.54 0.00 2.53 565.94 564.94 132.77 0.00750 12 Circular 1 3.34 0.00450 0.65 0.54 0.29 4.69 0.99 0.47 5.80 807 806 0.06 0.90 0.05 0.05 5.00 6.54 0.00 0.35 569.28 566A4 71.11 0.03997 6 Circular 1 122 0.00350 0.18 0.07 0.10 5.37 0.63 0.22 5.22 809 810 1 0.00 0.00 0.27 5.23 6.47 0. . 111565.56 51.18 0.04994 12 Cirwlar 1 1 8.63 0.00220 0.31 0.21 0.17 9.64 1.47 0.10 5.33 811 810 0.30 0.90 0.27 0.27 5.00 6.54 OAO 1.77 569.47 568.12 77.49 0.01750 12 Circular 1 5.11 0,00220 0.41 0.30 0.22 5.91 0.95 0.22 5.22 EX18 EX Inlet 310 2.26 0.47 1.06 1.06 5.00 6.54 0.00 6.95 566.40 566.11 29.29 0.01000 18 Circular I 1 10.50 0.00460 0.89 1.09 0.41 6.35 1.52 0.08 5.08 Test ITest I Test 1 1 1 4.95 1 0.82 1 4.05 4.05 1 6.00 6.23 0.00 25.22 100.00 98.75 100.00 0.01250 30 Circular I 49.68 0.00330 1.26 2.48 0.63 10.16 2.96 0.16 6.16 FORM LID 204 STORMWATER INLET COMPUTATIONS SHEET 1 OF 3 ROUTE PROJECT UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL DESIGNER: A. MABEE DATE 1211712019 CHECKED: UNITS:NGLISH Sag Inlets Only mills �--__-- INLETSOFT BY ENSOFTEC DATE: 12/17/2019 FORM LID 204 STORMWATER INLET COMPUTATIONS SHEET 2 OF 3 ROUTE PROJECT UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL DESIGNER: A. MABEE DATE 1211712019 CHECKED: UNITS:NGLISH Sag Inlets Only ���_ eee e •e ®-------------------------__-- ---® eee ®eee -------------------------__-- ---_--- ---_---����� e e �® eee � e e: • e e �®�� e e • .eee �����--__-- ---eeee • --����---------------------__-® ---eeee • e e ®e e -------------------------__-® --- eee • e e - ®e e -------------------------__-® �� eee e e e• e e e -------------------------__-® ---eeee • e e ®e a -------------------------__-® INLETSOFT BY ENSOFTEC DATE: 12/17/2019 FORM LID 204 STORMWATER INLET COMPUTATIONS SHEET 3 OF 3 ROUTE PROJECT UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL DESIGNER: A. MABEE DATE 1211712019 CHECKED: UNITS:NGLISH Sag Inlets Only mills ---_-------® eee --®--------�--®----_®-® ®® eee _® e • e ®-------------------------__-® ---eeee ' �� e e -------------------------__-® ®® e e _® a •e ®-------------------------__-® ---_-------® eee -- eee --------�--®----_®-® ---eeee ' e e . • ®e e -------------------------__-® -------------------------__-- ---_---����� e e e e e• � eee � e e• ee eee �� e®" � :eee ® eee � e ee �--__-- ---® e e ®e a -------------------------__-- ---_---���� e • e e e e e � eee � e e• ee ����� :eee � ee e • e eeee �--__-- ®® eee e :e ® e e. -------------------------__-® ---eeee • -- e e • ���---------------------__-® -___--_----® eee --®------_-®--®----_®-® INLETSOFT BY ENSOFTEC DATE: 12/17/2019 LD-347 PROJECT: UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL HYDRAULIC GRADE LINE ANALYSIS INCIDENCE PROBABILITY -Year DESIGNED BY: A. MABEE Checked: INLET OR JUNCTION ST& INVERT EL. OUTFLOW PIPE DEPTH OF FLOW OUTFLOW PIPE OUTLET WATER SURFACE ELEV. DIA. PIPE Do (In/mm) DESIGN DISCH. Q. (CFS/CMS) LENGTH PIPE L. (FVM) FRICTION SLOPE, Sfo (FT/FT) (M/M) FRICTION LOSS Hf (Ft/M) JUNCTION LOSS SURFACE FLOW Adj, Ht 1.3 Ht (Ft(M) Inlet Shaping? Y/N 0.5 Ht (Ft/M) FINAL H (FVM) Inlet Water Surface Elevation Top of MH Top of Inlet El - APPROX. Adjustment? Vo Cony. Ho (Ft/M) Vi Vi'2/2g Hi(Expn) 0.35'MAX. (Vi2/2g) SKEW Argle K Bend H (Ft/M) Sum HL (Ft/M) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16 17 18 19 100 482.000 102 484.000 2.50 486.000 30 26.670 16.96 0.00377 0.064 9.470 0.348 21.678 7.297 2.554 0.0 0.00 0.000 2.902 0.000 2.902 YES 1.451 1.515 487.515 489.227 O.K. 104 484.270 1.75 487.515 21 26.670 79.54 0.02523 2.007 21.678 1.824 22.427 7.810 2.734 0.0 0.00 0.000 4.558 0.000 4.558 YES 2.279 4.286 492.391 499.431 O.K. 106 493.370 1.75 494.770 21 26.670 126.93 0.02523 3.203 22.427 1.953 21.555 7.215 2.525 0.0 0.00 0.000 4.478 0.000 4.478 YES 2.239 5,442 506.867 523.720 O.K. 108 507.788 1.75 509.188 21 26.670 102.88 0.02523 2.596 21.555 1.804 16.258 4.104 1.437 0.0 0.00 0.000 3.240 0.000 3.240 YES 1.620 4.216 517.895 535.952 O.K. 110 517.113 1.75 518.513 21 26.160 89.24 0.02428 2.167 16.258 1.026 0.000 0.000 0.000 0.0 0.00 0.000 1.026 0.000 1.026 YES 0.513 2.680 522.110 534.200 O.K. 1-13-347 PROJECT: UVA ENCOMPASS HEALTH REHABILITATION HOSPITAL DESIGNED BY: A. MABEE HYDRAULIC GRADE LINE ANALYSIS Checked: INCIDENCE PROBABILITY -Year INLET OR JUNCTION STA. INVERT EL. OUTFLOW PIPE DEPTH OF FLOW OUTFLOW PIPE OUTLET WATER SURFACE ELEV. DIA. PIPE Do (In/mm) DESIGN DISCH. Oo (CFS/CMS) LENGTH PIPE Lo (FVM) FRICTION SLOPE, Sfo (FT/FT) (MIM) FRICTION LOSS Hf (FVM) JUNCTION LOSS SURFACE FLOW Adj. Ffl 1.3 Ht (FVM) Inlet Shaping? Y/N 0.5 Ht (FVM) FINAL H (FVM) Net Wale, Surface Elevation Top of MH Top of Inlet El - APPROX. Mju-m? V. Cony. Ho (FVM) VI Vi'P/2g Hi (Eapo) 0.35'MAX. (Vi2/29) SKEW Aoyle K Bend H (FVM) Sum HL (FVM) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16 17 18 19 194 529.000 196 527.000 3.00 529.400 36 48.757 31.49 0.00476 0.150 28.107 3.067 22.337 7.748 2.712 0.0 0.00 0.000 5.778 0.000 5.778 YES 2.889 3.039 532.439 539.996 O.K. 198 533.192 3.00 535.592 36 48.757 82.03 0.00476 1 0.390 1 22.337 1.937 1 13.457 1 2.812 0.984 1 0.0 0.00 1 0.000 1 2.921 0.000 2.921 YES 1.461 1.851 539.788 546.364 O.K. 200 538.746 3.00 541.146 36 48.757 66.18 0.00559 0.370 13.457 0.703 15.952 3.951 1.383 0.0 0.00 0.000 2.086 0.000 2.086 YES 1.043 1.413 542.559 553.171 O.K. 202 540.070 3.00 542.559 36 48.757 53.38 0.00476 0.254 15.952 0.988 22.588 7.923 2.773 0.0 0.00 0.000 3.761 0.000 3.761 YES 1.880 2.134 544.693 550.231 O.K. 204 542.838 3.00 545.238 36 48.757 16.64 0.00476 0.079 22.588 1.981 22,511 7.869 2.754 0.0 0.00 0.000 4.735 0.000 4.735 YES Z.367 2.447 547.685 555.994 O.K. 206 549.554 3.00 551.954 36 48.757 19.27 0.00476 0.092 22.511 1.967 23.691 8.715 3.050 0.0 0.00 0.000 5.018 0.000 5.018 YES 2.509 2.600 554.554 564.476 O.K. 208 557.872 3.00 560.272 36 48.757 16.02 0.00476 0.076 23.691 2.179 7.872 0.962 0.337 0.0 0.00 0.000 2.516 0.718 2.516 YES 1.258 1.334 561.606 570.840 O.K. 402 565.035 1.00 565.835 12 0.563 74.22 0.00022 0.017 5.927 0.136 0,000 0.000 0.000 0.0 0.00 0.000 0.136 0.563 0.177 YES 0.089 0.105 568.478 572.300 O.K. 210 560.297 3.00 562.697 36 36.889 171.29 0.00272 0.467 7.872 0.241 8.371 1.088 0.381 0.0 0.00 0.000 0.621 0.000 0.621 YES 0.311 0.777 563.474 572.609 O.K. 212 561.254 3.00 563.654 36 33.079 156.36 0.00219 0.343 8.371 0.272 7.090 0.781 0.273 0.0 0.00 0.000 0.545 2.213 0.545 YES 0.273 0.615 564.269 569.340 O.K. 214 562.325 2.50 564.325 30 24.723 199.00 0.00324 0.644 7.090 0.195 8.179 1.039 0.364 0.0 0.00 0.000 0.559 1.781 0.559 YES 0.279 0.923 565.248 569.610 O.K. 216 563.424 2.50 565.424 30 22.859 52.75 0.00277 0.146 8.179 0.260 7.696 0.920 0.322 0.0 0.00 0.000 0.582 2.003 0.582 YES 0.291 0.437 565.861 570.320 1 O.K. 218 563.821 2.00 565.861 24 20,776 39.93 0.00751 0.300 7.696 0.230 9.719 1.467 0.513 0.0 0.00 0.000 0.743 0.728 0.743 YES 0,372 0.672 566.532 571.020 O.K. 802 5641220 1.50 566.532 18 4.894 H65 0.00193 0.106 5.567 0.120 5.296 0.436 0.152 0.0 0.00 0.000 0.273 0.860 0.273 YES 0.136 0.242 566.774 571.650 O.K. 804 564.730 1.50 566.774 18 4.012 14.62 0.00130 0.019 6.296 0.109 4.681 0.340 0.119 0.0 0.00 0.000 0.228 1.447 0.296 YES 0.148 0.167 566.942 571.650 O.K. 806 564.944 1.00 566.942 12 2.532 1132.77 0.00450 1 0.597 4.681 0.085 5,372 0.448 0.157 0.0 0.00 0.000 0.242 0.412 0.242 YES 0.121 0.718 567.660 569.940 O.K. 302 560A97 2.00 561197 24 11.825 65.47 0.00243 0.159 7.732 UK 7.340 0.837 0.293 0.0 0.00 0.000 0.525 0.690 0.525 YES 0.262 0.422 562.219 571.610 O.K. 304 560.952 1.50 562.219 18 11.135 152.50 0.01001 1.526 7.340 0.209 7.206 0.806 0.282 0.0 0.00 0.000 0.491 0.288 0.491 YES 0.246 1.772 563.991 572.240 O.K. 306 562.577 1.50 563.991 18 9.507 102.35 0.00730 0.747 7.206 0.202 6.859 0.731 0.256 0.0 0.00 0.000 0.457 1.950 0.594 YES 0.297 1.044 565.035 570.690 O.K. 308 563.700 1,50 565.035 18 7.411 105.01 0.00443 0.466 6.859 0.183 6.850 0.729 0.255 0.0 0.00 0.000 0.438 0.160 0.438 YES 0219 0.684 565.719 570.920 O.K. 310 1 564.845 1.50 566.045 18 7.366 116.50 0.00438 0.510 6.850 0.182 6.353 0.627 0.219 0.0 0.00 0.000 0.402 0.443 0.402 YES 0.201 0.711 566.868 571.050 O.K. EX Inlet 566.107 1.50 567.307 18 6.949 29.29 0.00457 0.134 6.353 0.157 0.000 0.000 0.000 0.0 0.00 0.000 0.157 0.000 0.157 YES 0.078 0.212 56Z519 572.000 O.K. 602 563.190 1.00 564.269 12 6.574 42.85 0.03033 1.300 9.683 0.364 6.485 0.653 0.229 0.0 0.00 0.000 0.593 0.000 0.593 YES 0.296 1.596 565.865 570.903 O.K. 606 565.330 1.25 566.330 15 6.490 119.67 0.00899 1.076 6.485 0.163 5.496 0.469 0.164 0.0 0.00 0.000 0.327 0.298 0.327 YES 0.164 1.240 567.570 572.850 O.K. 610 566.630 1.00 567.570 12 3.214 154.23 0.00725 1.118 5.496 0.117 2.939 0.134 0.047 0.0 0.00 0.000 0.164 0.304 0.164 YES 0.082 1.200 568.867 572.650 O.K. 612 1 568.270 1.00 569.070 12 0.307 71.25 0.00007 0.005 2.939 0.034 0.000 0.000 0.000 0.0 0.00 0.000 0.034 0.307 0.044 YES 0.022 0.027 569.171 572.650 O,K. 220 564.220 2.00 566.5312 24 16.079 132.11 0.00450 0.594 9.719 0.367 9.537 1.412 0.494 0.0 0.00 0.000 0.861 1.183 0.861 YES 0.431 1.025 567.557 573.320 O.K. 222 566.300 2.00 567.900 24 14.896 75.88 0.00386 0.293 9.537 0.353 10.709 1.781 0.623 0.0 0.00 0.000 0.976 0.000 0.976 YES 0.488 0.781 568.681 575.389 O.K. 224 567.540 2.00 569.140 24 23.801 53.41 0.00986 0.527 10.709 0.445 0.000 0.000 0.000 0.0 0.00 0.000 0A45 0.000 0.445 YES 0,223 0.749 569.889 579.499 O.K. 316 565.478 1.00 566.278 12 1.400 99.43 0.00138 0.137 4.586 0.082 1 6.427 1 0.641 1 0.224 0.0 0.00 0.000 0.306 0.693 0.3911 YES 0.199 0.336 566.922 571.850 O.K. .11 568.423 0.67 568.956 8 0.307 55.67 0.00057 0.032 3.069 0.037 0.000 0.000 0.000 0.0 D.00 0.000 0.037 0.307 0.048 YES 0,024 0.056 56S 199 572,850 O.K. i k'Ut 1 � I'k _ :a � N II II y yt y, "A TO it IIIIII I s / 007ysT 80 M1 �'ll�. > _ 1 -N a .9f \ It111' 1 11. N`I� , 1341 Sq� I ��- V3�� rJJ• �1 - j - _ l, � _ _ �� �.347459' � ,�^ � �"T �� ��Y.� ��� �I�nIj��}rj' • r ''7 f+' , L V yy tip 1 iv dI(f l I �J 1 r j _ n I • No__ .b; 5b, �M15 SUBBA5IN D2 84 03 M,. C),1313 Sq. MI. �7- 0 3401 5q: K. - &¢-0079 ',SU A51 I�,N=86 12.83Ac �'�. �� '��.•.' �1 �, t9 „ 1 5 ,�,.( ,. \ SUBBASIN EI ' 27BOAG �,'.• / / :L - I - ti e 0.0434 5q. Mi',',V 0.I125 Sq. Km. A-s5..RCN=81 r suBeasME2 2 I -�•/// p- - 1728PC o0434sg1a �, 54 O11255gO. r. N=83BI CW= / 27 I SUBBASIN Fl GG.44 Ac. 1 I 01038 Sq. K 1 l _ J 0.2689 Sq. Km. tc-0.087 7 CN-91 SUBBASIN F2 1 ,� 31. C4AC SUBBASfN 82. \ 0.0494 Sq. M 49 ON O. 12SO 511. Km_ YYY OO7G6 eq, Mi. - \ tc`004t 01964 SSq. Km. 1 _ CN=0t tc=0.058 40 �gm 45 I6 f 21e7 SUBBA51N GI 43 48.90Ac. sq. Mi 0.1979 Sq. Km. I�'I _ �� �• tc=0.057 CN=92 r 1 pOVYE B� - to f DRAINAGE SUBBASIN AAR - DEVELOPED CONDITION FLAT BRANCH - TRIBUTAR' TO NORTH FORK RIVANNA RIVER UVA RESEARCH PORK AT NORTH FORK - ®UNWERSM OF VHUIP A DATE; 7/23/97 SCALE- 1' 200'(12,400) UAL }},,MAM FOUNMrIM � �Mghts & Company' PIEPARED FOR �Dewberry gDAVIS ki6FiViFJ UREF North Fork Business Park NOV t44] PREPARED By I - • �^°�� ®Dewberry &Davis