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HomeMy WebLinkAbout2007-06-27 Drainage Calculations 3 i I I I i DRAINAGE CALCULATIONS for NEW SCIENCE BUILDING at Brooks School North Andover, Massachusetts Prepared by: Rist-Frost-Shumway Engineering, P.C. Laconia, New Hampshire Post-Development Drainage Analyses Revised May 1 , 2007 F. s JOHN 5qc� G i SCOTT CMLCn No.29134 Fs��ONRL.LNG RFS 06-4984 MARCH 2O07 i Contents: Summaries & Calculations Pre- vs. Post-Development Runoff (2-yr,10-yr, 25-yr, & 100 yr storm events) (Revised May 1, 2007) HydroCAD Output: ' i Post-Development Drainage Diagram Post-Development Analyses for 2-yr, 10-yr, 25-yr, & 100-yr storm events (Revised May 1, 2007) Pre- Development Drainage Plan (in rear pocket) (Revised 4/30/07) Post-Development Drainage Plan (in rear pocket) (Revised 4/30/07) F Project_ Subject Project #: By: Dcjie: Sheet: of pre---btv -7 C'>Z.) C )0 (4; (to Rist-Frost-Shurnway Engineering - 71 Water Sireet - Laconia,MH 03246 - P.603-524-4647 - F:603-528-7653 - Nmufsengineefing.com hUSERSIENGR149841eivi114984 Hydrocadl 4984 Brooks Science Center Post-Deg.-2yr-rev1 Prepared by Rist-Frost-Shumway Engineering, P.C. Page 1 H droCAD®8.01 sln 001039 ©2007 H droCAD Software Solutions LLC 511I2007 Area Listing (all nodes) Area CN Description (acres) (subcatchment-numbers) 0,557 58 Woodslgrass comb.,Good,HSG B (6S,75,8S) 1.967 61 >75%Grass cover,Goad,HSG S (1S,3S,4S,5S,6S,7S,9S,10S,12S,16S) 1.306 98 Paved parking&roofs (IS,2S,3S,4S,5S,6S,7S,8S,9S,10S,11S,12S,13S,16S,17S,19S,20S,21S,22S,23S) 3.830 TOTAL AREA 1 ' i I:IUSERS\ENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Past-Dev.-2yr-reel Type W 24-hr 2 yr Rainfall=3.90" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 2 H droCAD®8.01 s/n 001039 D 2007 H droCAD Software Solutions LLC 5/1/2007 48.00 hrs,dt 0.01 hrs,4801 points x 5 Time span=0.00 Runoff by SCS TR-20 method, UH=SCS Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Drainage Area 1 RunoffArea=34,042 sf Runoff Depth=1.03" Flow Length=292' Slope=0.0790 T Tc=4.9 min CN=75 Runoff=0.93 cfs 0.067 of Subcatchment 2S: Drainage Area 2 Runoff Area=1,109 sf Runoff Depth=2.87" Flow Length=22' Slope=0.7500'1' Tc=0.1 min CN=98 Runoff=0.09 cfs 0.006 of Subcatchment 3S: Drainage Area 3 Runoff Area=9,400 sf Runoff Depth=0.55" Flow Length=147' Slope=0.0730 T Tc=3.9 min CN=65 Runoff=0.11 c#s 0.010 of Subcatchment 4S: Drainage Area 4 Runoff Area=10,127 sf Runoff Depth=0.97" Flow Length=152' Slope=0.0800'P Tc=3.0 min CN=74 Runoff=0.28 cfs 0.019 of Subcatchment 5S: Drainage Area 5 Runoff Area=13,454 sf Runoff Depth=0.51" Flow Length=154' Slope=0.0800'P Tc=3.9 min CN=64 Runoff=0.15 cfs 0.013 of Subcatchment 6S: Drainage Area 6 Runoff Area=14,627 sf Runoff Depth=0.48" Flow Length=224' Slope=0.0900 T Tc=5.1 min CN=63 Runoff=0.13 cfs 0.013 at Subcatchment 7S: Drainage Area 7 Runoff Area=24,118 sf Runoff Depth=0.48" How Length=351' Slope=0.0710 T Tc=8.3 min CN=63 Runoff=0.19 cfs 0,022 of Subcatchment 8S: Drainage Area 8 Runoff Area=18,654 sf Runoff Depth=0.51" Flow Length=378' Slope=0.0470'P Tc=10.5 min CN=64 Runaff=0.16 cfs 0.018 of Subcatchment 9S: Drainage Area 9 Runoff Area=12,110 sf Runoff Depth=1.83" Flow Length=183' Slope=0.0670 Y Tc=2.5 min CN=87 Runoff=0.68 cfs 0.042 of Subcatchment 10S: Drainage Area 10 Runoff Area=1,827 sf Runoff Depth=2.26" Flow Length=34' Slope=0.0740 T Tc=0.5 min CN=92 Runaff=0.13 cfs 0.008 of Subcatchment 11S: Drainage Area 11 Runoff Area=1,096 s€ Runoff Depth=2.87" Flow Length=22' Slope=0.7500 T Tc=0.1 min CN=98 Runoff=0.09 cfs 0.006 of i Subcatchment 12S: Drainage Area 12 Runoff Ares=5,989 sf Runoff Depth=0.87" Flow Length=82' Slope=0.0550 T Tc=2.3 min CN=72 Runoff=0.15 cfs 0.010 of Subcatchment 13S: Drainage Area 13 Runoff Area=2,311 sf Runoff Depth=2.87" Flow Length=22' Slope=0.7500'P Tc=0.1 min CN=98 Runoff=0.19 cfs 0.013 of j I Subcatchment 16S: Drainage Area 16 Runoff Area=2,722 sf Runoff Depth=1.08" Flow Length=64' Slope=0.0780'P Tc=1.4 min CN=76 Runoff=0.09 cfs 0.006 of Subcatchment 17S: Drainage Area 17 Runoff Area=3,019 sf Runoff Depth=2,87" Flow Length=120' Tc=0.4 rain CN=98 Runoff=0.25 cfs 0,017 of Subcatchment 19S: Drainage Area 19 Runoff Area=1,011 s€ Runoff Depth=2.87" Flow Length=23' Slope=0.7500'P Tc=0.1 min CN=98 Runoff=0.09 cfs 0.006 at Subcatchment 20S: Drainage Area 20 Runoff Area=1,331 sf Runoff Depth=2.87" Flow Length=23' Stope=0.7500 T Tc=0.1 min CN=98 Runoff=0.11 cfs 0.007 of Subcatchment 21S: Drainage Area 21 Runoff Area=1,213 sf Runoff Depth=2.87" Flow Length=24' Slope=0.7500 7 Tc=0.1 min CN=98 Runoff=0.10 cfs 0.007 of Subcatchment 22S: Drainage Area 22 Runoff Area=149 sf Runoff Depth=2.87" Flow Length=24' Slope=0.7500 T Tc=0.1 min CN=98 Runoff=0.01 cfs 0.001 of Subcatchment 23S: Drainage Area 23 Runoff Area=8,525 sf Runoff Depth=2.87" Flow Length=355' Tc=1.8 min GN=98 Runoff=0.68 cfs 0.047 of I:IUSERSIENGR149841civill4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type !!!24-hr 2 yr Rainfall=3.90" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 3 �droCADt 8.01 s!n 001039 ©2007 fi droCAD Software Solutions LLC 5f112007 Pond 1E: Existing CB Peak Elev=159.86' Inflow=0.93 cis 0.067 of 12.0"x 188.0'Culvert Outflow=0.93 cfs 0.067 of Pond 1P: Cistern Peak EIev=169.92' Inflow=0.09 cfs 0.006 of 8.0"x 12.0'Culvert Outflow=0.09 cfs 0.006 of Pond 2E: Existing CB Peak EIev=157.28' Inflow=0.39 cfs 0.029 of Primary=0.39 cfs 0.029 of Secondary=0.00 cfs 0.000 of Outflow=0.39 cfs 0.029 of Pond 2P: Proposed In-line drain Peak Elev=170.38' lnflow=0.09 cfs 0.006 of 6.0"x 18.0'Culvert Outflow=0.09 cfs 0.006 at Pond 3E: Existing CB Peak EIev=158.10' Storage=4 of Inflow=0.28 cfs 0.019 at Outflow=0.28 cfs 0.019 at Pond 4E: Reconstructed CB Peak EIev=156.23' lnflow=0.16 cfs 0.018 at Primary=0.16 cfs 0.018 of Secondary=0.00 cfs 0.000 of Outflow=0.16 cfs 0.018 at Pond 5E: Existing CB Peak EIev=167.55' lnflow=0.79 cfs 0.050 at 12.0"x 28.0'Culvert Outflow=0.79 cfs 0.050 at Ponta 6E: Existing DMH Peak EIev=164.91' lnflow=0.79 cfs 0.050 at 12.0"x 240.0'Culvert Outflow=0.79 cfs 0.050 at Pond 7E: Existing DMH Peak EIev=155.26' lnflow=0.84 cfs 0.069 at 10.0"x 257.0'Culvert Outflow=0.84 cfs 0.069 at Pond 10P: Proposed CB Peak EIev=168.28' Inflow=0.13 cfs 0.008 at 12.0"x 29.0'Culvert Outflow=0.13 cfs 0.008 at Pond 11P: Proposed In-line drain Peak Elev=170.54' Inftow=0.09 cfs 0.006 of 6.0"x 35.0'Culvert Outflow=0.09 cfs 0.006 at Pond 12P: Upper Wet/Dry Garden Peak EIev=169.51' Storage=103 cf Inflow=0.65 cfs 0.045 of Outflow=0.64 cfs 0.043 at Pond 13P: PROPOSED YARD DRAIN Peak Elev=170.67' Inflow=0.19 cfs 0.013 of 8.0"x 42.0'Culvert Outflow=0.19 cfs 0.013 of Pond 16P: Lower Wet/Dry Garden Peak EIev=168.56' Storage=151 cf Inflow=0.92 cfs 0.063 of Outflow=0.88 cfs 0.061 of Pond 19P: Proposed In-line drain Peak Elev=169.19' Inflow=0.09 cfs 0.006 of 6.0"x 75.0'Culvert Outflow=0.09 cfs 0.006 of Pond 20P: Proposed In-line Drain Peak EIev=168.53' lnflow=0.20 cfs 0.013 of 6.0"x 112.0'Culvert Outflow=0.20 cfs 0.013 of Pond 21P: Proposed In-line Drain Peak EIev=168.59' lnflow=0.10 cfs 0.007 of 6.0"x 50.0'Culvert Outflow=0.10 cfs 0.007 of Pond 22P: Proposed In-line Drain Peak EIev=168.57' [nflow=0.11 cfs 0.007 of 6.0"x 7.0'Culvert Outflow=0.12 cfs 0.007 of Pond 24P: Proposed Yard Drain Peak EIev=162.48' [nflow=0.88 cfs 0.061 at 12.0"x 42.0'Culvert Outflow=0.88 cfs 0.061 of Pond 26P: Proposed Drain Manhole Peak EIev=163.16' Inflow=0.86 cfs 0.060 at Primary=0.58 cfs 0.058 of Secondary=0.28 cfs 0.002 at Outflow=0.86 cfs 0.060 at Pond 27P: Recharge Sytem Peak Elev=162.21' Storage=471 cf Inflow=0.58 cfs 0.058 of Discarded=0.03 cfs 0.039 of P€imary=0.54 cfs 0.019 at Outflow=0.57 cfs 0.058 of 1:lUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type ill 24-hr 2 yr Rainfall=3.70" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 4 H droCADV 8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Pond 28P: Proposed Drain Manhole Peak Elev=160.77' Inflow=1.15 cfs 0.063 of 12.0"x 50.0'Culvert Outflow=1.15 cis 0.063 of Pond 29P: Proposed Drain Manhole Peak Elev=157.70' Inflow=1.69 cfs 0.082 of 12.0"x 157.0'Culvert Outflow=1.69 cfs 0.082 of Pond 30P: Detention Pond Peak EIev=150.19' Storage=2,131 cf Inflow=1.76 cis 0.095 at Outflow=0.18 cfs 0.094 at Pond 31P: 6' "Downstream Defender" Peak EIev=158.66' Inflow=1.15 cfs 0.063 of 12.0"x 40.0'Culvert Outflow=1.15 cfs O.063 of Pond LAKE: Lake Cochichewick Inflow=2.41 cfs 0.294 of Primary=2.41 cfs 0.294 of Total Runoff Area=3,830 ac Runoff Volume=0.337 of Average Runoff Depth=1.05" 65.91%Pervious Area=2.524 ac 34.09%Impervious Area=1.306 ac i I:IUSERS\ENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type 11124-hr 2 yr Rainfal1=3.10" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 5 HydroCAD(D 8.01 s/n 001039 ©2007 HydroCAD Software Solutions LLC 5/112007 Summary for Subcatchment 1S: Drainage Area 1 Runoff = 0.93 cfs @ 12.08 hrs, Volume= 0.067 at, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Time Span=0,00-48.00 hrs,dt=0.01 hrs Type Ill 24-hr 2 yr Rainfall=3.10" Area sf CN Description 12,847 98 Paved parking&roofs 21,195 61 >75%Grass cover, Good HSG B 34,042 75 Weighted Average 21,195 Pervious Area 12,847 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/fl ftlsec cfs 4.9 292 0.0790 0.99 LaglCN Method, Summary for Subcatchment 2S: Drainage Area 2 149] Hint: Tc<2dt may require smaller dt Runoff = 0.09 cfs @ 12.00 hrs, Volume= 0.006 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 1,109 98 Paved parking&roofs 1,109 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ftlsec cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" Summary for Subcatchment 3S: Drainage Area 3 Runoff = 0.11 cfs @ 12.08 hrs, Volume= 0.010 af, Depth= 0.55" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 1,022 98 Paved parking& roofs 8,378 61 >75%Grass cover, Good HSG B 9,400 65 Weighted Average 8,378 Pervious Area 1,022 Impervious Area Tc Length Slope Velocity Capacity Description min feet ftlft ft/sec cfs 3.9 147 0.0730 0,63 Lag/CN Method, I:IUSERSIENGR149841civiI14984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-rev1 Type !!!24-hr 2 yr Ralnfa!! 3.90" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 6 H droGADO 8.01 sln 001039 ©2007 H droGAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 4S: Drainage Area 4 Runoff = 0.28 cfs @ 12.05 hrs, Volume= 0.019 af, Depth= 0.97" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0,01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area s# CN Description 3,682 98 Paved parking &roofs 6,445 61 >75% Grass cover, Good,HSG B 10,127 74 Weighted Average 6,445 Pervious Area 3,682 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 152 0.0800 0.85 Lag/CN Method, Summary for Subcatchment 5S: Drainage Area 5 Runoff = 0.15 cfs @ 12.08 hrs, Volume= 0.013 af, Depth= 0.51" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs -hr 2 yr Rainfall=3.10"Type III 24 Area sf CN Description 1,179 98 Paved parking & roofs 12,275 61 >75% Grass cover,Good, HSG B 13,454 64 Weighted Average 12,275 Pervious Area 1,179 Impervious Area Tc Length Slope Velocity Capacity Description rein feet ft/ft) (fUsec) (cfs 3.9 154 0.0800 0.65 LagfCN Method, Summary for Subcatchment 6S: Drainage Area 6 Runoff - 0.13 cfs @ 12.10 hrs, Volume= 0.013 aft Depth= 0.48" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt=0.01 hrs Type Ill 24-hr 2 yr Rainfall=3.10" Area (sf) CN Description 1,065 98 Paved parking &roofs 10,175 61 >75% Grass cover, Good, HSG B 3,387 58 Woods/grass comb., Good, HSG B 14,627 63 Weighted Average 13,562 Pervious Area 1,065 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ff ft/sec cfs 5.1 224 0.0900 0.73 Lag/CN Method, I:IUSERSIENGR1498416vi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type 11! 24-hr 2 yr Rainfal1=3.10" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 7 H droCADO 8,01 sln 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 7S: Drainage Area 7 Runoff = 0.19 cfs @ 12.15 hrs, Volume= 0.022 af, Depth= 0.48" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area (s€) CN Description 1,472 98 Paved parking&roofs 17,436 61 >75% Grass cover, Good, HSG B 5,210 58 Woods/grass comb. Good, HSG B 24,118 63 Weighted Average 22,646 Pervious Area 1,472 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft ft/sec cfs 8.3 351 0,0710 0.71 LagICN Method, Summary for Subcatchment 8S: Drainage Area 8 Runoff — 0.16 cfs @ 12.18 hrs, Volume= 0.018 af, Depth= 0.51" -20 method, UH=SCS,Time Span=0,00-48.00 hrs,dt=0.01 hrs Runoff by SCS TR Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 2,996 98 Paved parking &roofs 15,658 58 Woods/grass comb., Good HSG B 18,654 64 Weighted Average 15,658 Pervious Area 2,996 Impervious Area Tc Length Slope Velocity Capacity Description min feet ftfft ft/sec cfs 10.5 378 0.0470 0,60 Lag/CN Method, Summary for Subcatchment 9S: Drainage Area 9 Runoff = 0.68 cfs @ 12.04 hrs, Volume= 0.042 af, Depth= 1.83" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 8,367 98 Paved parking &roofs 3,743 61 >75%Grass cover, Good HSG B 12,110 87 Weighted Average 3,743 Pervious Area 8,367 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft ft/sec cfs 2.5 183 0.0670 1.23 LagICN Method, I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type !11 24-hr 2 yr Rainfafl=3.10" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 8 H dfoCADO 8.01 sin 001039 O 2007 H droCAD Software Solutions Lt_C 511l2007 Summary for Subcatchment 10S: Drainage Area 10 [491 Hint: Tc<2dt may require smeller dt Runoff - 0.13 cfs @ 12.01 hrs, Volume- 0.008 af, Depth= 2.26" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs,dt= 0,01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 1,549 98 Paved parking &roofs 278 61 >75% Grass cover, Good, HSG B 1,827 92 Weighted Average 278 Pervious Area 1,549 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft) (fUsec) (cfs 0.5 34 0.0740 1.13 Lag/CN Method, Summary for Subcatchment 11S: Drainage Area 11 1491 Hint:Tc<2dt may require smaller dt Runoff - 0.09 cfs @ 12.00 hrs, Volume= 0.006 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt=0.01 hrs Type 111 24-hr 2 yr Rainfall=3.10" Area (sf) CN Description 1,096 98 Paved parking..&.roofs 1,096 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft) (fUsec) (cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" Summary for Subcatchment 12S: Drainage Area 12 Runoff = 0.15 cfs @ 12.04 hrs, Volume= 0.010 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area (sf) CN Description 1,845 98 Paved parking &roofs 4,144 61 >75% Grass cover,Good HSG B 5,989 72 Weighted Average 4,144 Pervious Area 1,845 Impervious Area Tc Length Slope Velocity Capacity Description min feet fuft) (ft/sec) (cfs 2,3 82 0.0550 0.59 Lag/CN Method, L\USERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Past-Dev,-2yr-revl Type !I1 24-hr 2 yr Rainfall=3.10" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 9 H droCADO 8.01 s1n 001039 ©2007 H droCAD Software Solutions LLC 511/2007 Summary for Subcatchment 13S: Drainage Area 13 [49] Hint: Tc<2dt may require smaller dt Runoff = 0.19 cis @ 12.00 hrs, Volume= 0.013 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area (sfj CN Description 2,311 98 Paved parking & roofs 2,311 Impervious Area Tc Length Slope Velocity Capacity Description min feet ftfft) (ft/sec) (cfs 0.1 22 0.7500 4,26 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 16S: Drainage Area 16 Runoff = 0.09 cfs @ 12.03 hrs, Volume= 0.006 af, Depth= 1.08" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 1,088 98 Paved parking &roofs 1,634 61 >75% Grass cover, Good HSG B 2,722 76 Weighted Average 1,634 Pervious Area 1,088 Impervious Area Tc Length Slope Velocity Capacity Description (min} (feet) (fUft) (ft/sec) (cfs) 1.4 64 0.0780 0.75 Lag/CN Method, Summary for Subcatchment 17S: Drainage Area 17 [49) Hint:Tc<2dt may require smaller dt Runoff = 0.25 cfs @ 12.01 hrs, Volume= 0.017 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 3,019 98 Paved parking &roofs 3,019 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 0.1 30 0.7500 4.54 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" 0.2 50 0.0200 4.90 1.71 Circular Channel(pipe), Roof Drain Diam=8.0" Area=0.3 sf Perlm=2.1' r=0.17' n=0.013 0.1 40 0.0250 7.17 5.63 Circular Channel (pipe), Roof Drain Diam= 12.0" Area=0.8 sf Perim=3.1' r= 0.25' n= 0.013 0.4 120 Total I:IUSERSIENGR149841civII\4984 Hydrocadl 4984 Brooks Science Center Post-❑ev.-2yr-revl Type !!!24-hr 2 yr Ralnfa!l=3.90" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 10 fH droCAD®8.01 s/n 001039 O 2007 HydroCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 19S: Drainage Area 19 [49] Hint: Tc<2dt may require smaller dt Runoff - 0.09 cfs @ 12.00 hrs, Volume= 0.006 af, Depth= 2.87" Runoff by SCS TR-20 method, UH-SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 1,011 98 Paved parking&roofs 1,011 Impervious Area Te Length Slope Velocity Capacity Description min feet ft/ft ftlsec cfs 0.1 23 0.7500 4.30 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" Summary for Subcatchment 20S: Drainage Area 20 [49] Hint: Tc<2dt may require smaller dt Runoff = 0.11 cfs @ 12.00 hrs, Volume= 0.007 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 1 331 98 Paved parking &roofs 1,331 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cis) 0.1 23 0.7500 4.30 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" Summary for Subcatchment 21 S: Drainage Area 21 [49] Hint: Tc<2dt may require smaller dt Runoff - 0.10 cfs @ 12.00 hrs, Volume= 0.007 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area sf CN Description 1,213 98 Paved parking &roofs 1,213 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 0.1 24 0.7500 4.34 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" 1:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Past-Dev.-2yr-rev1 Type III 24-hr 2 yr Rainfall=3.70" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 11 ydroCAD� 8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 22S: Drainage Area 22 (49) Hint:Tc<2dt may require smaller dt Runoff - 0.01 cfs @ 12.00 hrs, Volume= 0.001 af, Depth= 2.87" Runoff by SCS TR-20 method, UH-SCS, Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 2 yr Rainfall=3.10" Area (sf) CN Description 149 98 Paved parking &roofs 149 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.1 24 0.7500 4.34 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" Summary for Subcatchment 23S: Drainage Area 23 Runoff = 0.66 cfs @ 12.03 hrs, Volume= 0.047 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs -hr 2 yr Rainfall=3.10"Type Ill 24 Area sf CN Description 8,525 98 Paved parking&roofs 8,525 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ff/sec) (cfs) 0.7 50 0.0200 1.18 Sheet Flow,Across Flat Roof Smooth surfaces n=0.011 P2=3.10" 0.8 225 0,0200 4.90 1,71 Circular Channel(pipe),Roof Drain in building Diam=8.0" Area=0.3 sf Perim=2.1' r=0.17' n=0.013 Cast iron, coated 0.3 80 0.0100 4.54 3.56 Circular Channel(pipe), Roof drain outside building Diam= 12.0" Area=0.8 sf Perim=3.V r=0.25' n=0.013 Corrugated PE smooth interior 1.8 355 Total Summary for Pond 1E: Existing CB Inflow Area= 0.781 ac, Inflow Depth = 1.03" for 2 yr event Inflow - 0.93 cfs @ 12.08 hrs, Volume= 0.067 of Outflow - 0.93 cfs @ 12.08 hrs, Volume= 0.067 af, Atten=0%, Lag=0.0 min Primary - 0.93 cfs @ 12.08 hrs, Volume= 0.067 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 159.86'@ 12.08 hrs Flood Elev= 162.90' Device _Routing Invert Outlet Devices 41 Primary 159.36' 12.0" x 188.0'long Culvert RCP,square edge headwall, Ke=0.500 Outlet Invert= 150,21' S=0.0487 T Cc=0.900 n=0.012 Concrete pipe, finished Primary OutFlow Max=0.93 cfs @ 12.08 hrs HW=159.86' TW=0.00' (Dynamic Tailwater) `�-1=Culvert (Inlet Controls 0.93 cfs @ 2.40 fps) I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type !f! 29-hr 2 yr Rainfall=3.90" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 12 HydroCADO 8.01 sin 001039 ©2007 HydroGAD Software Solutions LLC 5/1/2007 Summary for Pond 1 P: Cistern {571 Hint: Peaked at 169.92'(Flood elevation advised) Inflow Area = 0.025 ac, Inflow Depth= 2.87" for 2 yr event Inflow = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Outflow = 0.09 cfs @ 12.00 hrs, Volume= 0.006 af, Atten= 0%, Lag= 0.0 min Primary = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt-0.01 hrs 15 Peak Elev= 169.92'@ 12.00 hrs Device Routing Invert Outlet Devices #1 Primary 169.75' 8.0" x 12.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 169.00' S=0.0625`/' Cc=0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.09 cfs @ 12.00 hrs HW=169.91' TW=168.54' (Dynamic Tallwater) t--1=Culvert (Inlet Controls 0.09 cfs @ 1.38 fps) Summary for Pond 2E: Existing CB Inflow Area = 0.448 ac, Inflow Depth = 0.77" for 2 yr event Inflow = 0.39 cfs @ 12.06 hrs, Volume= 0.029 of Outflow = 0.39 cfs @ 12.06 hrs, Volume= 0.029 at, Atten=0%, Lag= 0.0 min Primary - 0.39 cfs @ 12.06 hrs, Volume= 0.029 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 15728'@ 12.06 hrs Flood Elev= 160.60' Device Routing Invert Outlet Devices _ #1 Primary 156,86' 6.0" x 200.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 150.04' S=0.0341 T Cc= 0.900 n=0.010 PVC, smooth interior #2 Secondary 160,40' 2.00'x 2.00' Horiz.OrificelGrate Limited to weir flow C=0.600 Primary OutFlow Max=0.39 cfs @ 12.06 hrs HW=157.28' TW=0.00' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 0.39 cfs @ 2.20 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=156.86' TW=0.00' (Dynamic Tailwater) t--2=Orifice/Grate ( Controls 0.00 cfs) Summary for Pond 2P: Proposed In-line drain Inflow Area = 0.025 ac, Inflow Depth = 2.87" for 2 yr event Inflow = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Outflow = 0,09 cfs @ 12.00 hrs, Volume= 0.006 at, Atten=0%, Lag= 0.0 min Primary = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt= 0.01 hrs 15 Peak Elev= 170.38'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 170.18' 6.0" x 18.0' long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 170.00' S=0.0100 T Cc= 0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.09 cfs @ 12.00 hrs HW=170.38' TW=169.91' (Dynamic Tallwater) t-1=Culvert (Barrel Controls 0.09 cfs @ 1.94 fps) 1:1USERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-rev9 Type 111 24-hr 2 yr Rainfall=3.t t3" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 13 HydroCAD®8.01 sln 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Summary for Pond 3E: Existing CB Inflow Area= 0232 ac, Inflow Depth = 0.97" for 2 yr event Inflow - 0.28 cfs @ 12,05 hrs, Volume= 0.019 of Outflow - 0.28 cfs @ 12.05 hrs, Volume= 0.019 af, Atten= 0%, Lag= 0.2 min Primary - 0.28 cfs @ 12.05 hrs, Volume= 0.019 of Routing by Dyn-Star-End method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 158.10'@ 12.05 hrs Surf.Area= 13 sf Storage= 4 of Flood Elev= 160.00' Surf.Area= 330 sf Storage= 51 cf Plug-Flow detention time=0.8 min calculated for 0.019 of(100%of inflow) Center-of-Mass det. time= 0.8 min (862.1 -861.3 ) Volume Invert Avail.Storage Storage Description #1 0.00, 51 cf Custom Stage Data(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store feet s -ft cubic-feet) cubic-feet 157.76 13 0 0 159.86 13 27 27 160,00 330 24 51 Device Routing Invert Outlet Devices 91 Primary 157.76' 6.0" x 34.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 157.23' S=0.0156 T Cc=0.900 n=0.010 PVC, smooth interior #2 Primary 159.86' 2.00'x 2,00'Horiz.Orifice/Grate Limited to weir flow C= 0.600 Primary OutFlow Max=0.28 cfs @ 12.05 hrs HW=158.10' TW=157.28' (Dynamic Tailwater) L1=Culvert (Inlet Controls 0.28 cfs @ 1.97 fps) 2=Orifice/Grate ( Controls 0.00 cfs) Summary for Pond 4E: Reconstructed CB Inflow Area = 0.428 ac, Inflow Depth = 0,51" for 2 yr event Inflow = 0.16 cfs @ 12.18 hrs, Volume= 0,018 of Outflow = 0.16 cfs @ 12.18 hrs, Volume= 0.018 af, Atten= 0%, Lag= 0.0 min Primary = 0.16 cfs @ 12.18 hrs, Volume= 0.018 of Secondary= 0.00 of's @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0,01 hrs 15 Peak Elev= 156.23'@ 12.18 hrs Flood Elev= 160.00' Device Routing Invert Outlet Devices #1 Primary 156.00' 8.0" x 35.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 155.65' S=0.0100 T Cc=0.900 n= 0.013 Clay tile #2 Secondary 159.80' 2.00'x 2.00'Horiz. Orifice/Grate Limited to weir flow C=0,600 Primary OutFlow Max=0.16 cfs @ 12.18 hrs HW=156.23' TW=155.13' (Dynamic Tailwater) Z1=Culvert (Barrel Controls 0.16 cfs @ 2.23 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=156.00' TW=0.00' (Dynamic Tailwater) t--2=Orifice#Grate ( Controls 0.00 cfs) I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-rev 1 Type 11!24-hr 2 yr F?alnfaf1=3.10" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 14 H droCADQ 8.01 sin 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 5E: Existing CB Inflow Area = 0.320 ac, Inflow Depth = 1.88" for 2 yr event Inflow = 0.79 cfs @ 12,03 hrs, Volume= 0.050 of Outflow = 0.79 cfs @ 12.03 hrs, Volume= 0.050 af, Atten= 0%, Lag=0.0 min Primary = 0.79 cfs @ 12.03 hrs, Volume= 0.050 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 167.55'@ 12.03 hrs Flood Elev= 171.83' Device Routing Invert Outlet Devices 91 Primary 167.10' 12.0" x 28.0' long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 164.50' S=0.0929 7' Cc=0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=0.79 cfs @ 12.03 hrs HW=167.55' TW=164.91' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 0.79 cfs @ 2.29 fps) Summary for Pond 6E: Existing DMH 4 Inflow Area M 0.320 ac, Inflow Depth = 1.88" for 2 yr event Inflow = 0.79 cfs @ 12.03 hrs, Volume= 0.050 of Outflow = 0.79 cfs @ 12.03 hrs, Volume- 0.050 af, Alten= 0%, Lag=0.0 min Primary - 0.79 cfs @ 12.03 hrs, Volume= 0.050 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 164.91'@ 12.03 hrs Flood Elev= 170.73' Device Routing ... Invert Outlet Devices #1 Primary 164.46' 12.0" x 240.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 154.69' S=0.0407 T Cc=0,900 n=0.010 PVC, smooth interior Primary OutFlow Max=0.79 cfs @ 12.03 hrs HW=164.91' TW=155.26' (Dynamic Tailwater) t---1=Culvert (inlet Controls 0.79 cfs @ 2.29 fps) Summary for Pond 7E: Existing DMH Inflow Area= 0.748 ac, Inflow Depth = 1.10" for 2 yr event Inflow - 0.84 cfs @ 12.04 hrs, Volume= 0.069 of Outflow - 0.84 cfs @ 12.04 hrs, Volume= 0.069 af, Atten= 0%, Lag=0.0 min Primary = 0.84 cfs @ 12.04 hrs, Volume= 0.069 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 155.26'@ 12.04 hrs Flood Elev= 158.85' Device Routing Invert Outlet Devices #1 Primary 154.76' 10.0" x 257.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 143.30' S=0.0446 7' Cc=0.900 n=0.013 Clay tile Primary OutFlow Max=0.83 cfs @ 12.04 hrs HW=155.26' TW=0.00' (Dynamic Tailwater) t--1=Culvert (inlet Controls 0.83 cfs @ 2.42 fps) Summary for Pond 1OP: Proposed CB Inflow Area = 0.042 ac, Inflow Depth = 2.26" for 2 yr event Inflow = 0.13 cfs @ 12,01 hrs, Volume= 0.008 of Outflow - 0.13 cfs @ 12.01 hrs, Volume= 0.008 af, Atten= 0%, Lag=0.0 min Primary = 0.13 cfs @ 12.01 hrs, Volume= 0.008 of I:IUSERSIENGR149841civih4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type 111 24-hr 2 yr Rainfall=3.10" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 15 1i droCAD®8.01 sin 001039 OO 2007 H droCAD Software Solutions LLC 5/112007 Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 168.28'@ 12.01 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 168AU 12.0" x 29.0'long Culvert CPP, square edge headwall, Ko= 0.500 Outlet Invert= 167.81' S=0.0100 T Cc= 0.900 n=0.013 Corrugated PE,smooth interior Primary Outflow Max=0.13 cfs @ 12.01 hrs HW=168.28' TW=167.53' (Dynamic Tailwater) L1=Culvert (Barrel Controls 0.13 cfs @ 2.02 fps) Summary for Pond 11 P: Proposed In-line drain Inflow Area= 0.025 ac, Inflow Depth = 2.87" for 2 yr event Inflow = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Outflow = 0.09 cfs @ 12.00 hrs, Volume= 0,006 af, Atlen=0%, Lag= 0.0 min Primary = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 170.54'@ 12.00 hrs Flood Elev= 172.00' Device RoutingInvert Outlet Devices ##1 Primary 170.35' 6.0" x 35.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 170.00' S=0.0100 T Cc= 0.900 n=0.013 Corrugated PE,smooth interior Primary Outflow Max=0.09 cfs @ 12.00 hrs HW=170.54' TW=169.51' (Dynamic Tailwater) L1=Culvert (Barrel Controls 0.09 cfs @ 2.00 fps) Summary for Pond 1213: Upper Wet/Dry Garden Inflow Area= 0.285 ac, Inflow Depth = 1.90" for 2 yr event Inflow = 0.65 cfs @ 12.01 hrs, Volume= 0.045 of Outflow - 0.64 cfs @ 12.02 hrs, Volume= 0.043 af, Atlen=2%, Lag= 0.5 min Primary = 0.64 cfs @ 12.02 hrs, Volume= 0.043 at Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 169.51'@ 12.02 hrs Surf.Area= 134 sf Storage= 103 cf Flood Elev= 170.50' Surf.Aroa= 343 sf Storage= 315 of Plug-Flow detention time=43.2 min calculated for 0.043 of(96%of inflow) Center-of-Mass dot.time=20.0 min ( 797.3-777.2 ) Volume Invert Avail.Stora a Storage Description 91 0.00, 315 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc,Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 168.00 22 0 0 169.00 76 49 49 170.00 189 133 182 170.50 343 133 315 Device Routing Invert Outlet Devices #1 Primary 169.30' 2.0'long x 1.00'rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.5'Crest Height Primary Outflow Max=0.64 efs @ 12.02 hrs HW=169.51' TW=168.55' (Dynamic Tailwater) t---1=Sharp-Crested Rectangular Weir (Weir Controls 0.64 cfs @ 1.53 fps) I:IUSERSIENGR149841civi114984 Hydrocadi 4984 Brooks Science Center Post-Deg.-2yr-revl Type /it 24-17r 2 yr Rainfa11=3.10" Prepared by Rist-Frost-Shumway Engineering, P.C_ Page 16 HydroCAD@ 8.01 sln 001039 ©2007 HydroCAD Software Solutions LLC 511/2007 Summary for Pond 13P: PROPOSED YARD DRAIN Inflow Area = 0-053 ac, Inflow Depth = 2.87" for 2 yr event Inflow = 0.19 cfs @ 12.00 hrs, Volume= 0.013 of Outflow = 0.19 cfs @ 12.00 hrs, Volume= 0.013 af, Atten=0%. Lag=0.0 min Primary - 0.19 cfs @ 12.00 hrs, Volume= 0.013 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt= 0.01 hrs/5 Peak Elev= 170.67' @ 12.00 hrs Flood Elev= 176.00' Device Routing Invert Outlet Devices 41 Primary 170.42' 8.0" x 42.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 170,00' S=0.0100 7' Cc= 0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.19 cfs.@ 12.00 hrs HW=170.67' TW=169.51' (Dynamic Tailwater) t-l=Culvert (Barrel Controls 0.19 cfs @ 2.38 fps) Summary for Pond 16P: tower Wet/Dry Garden 180]Warning: Exceeded Pond 22P by 0.67'@ 15.45 hrs (0.54 cfs 0.583 at) Inflow Area= 0.404 ac, Inflow Depth = 1.86" for 2 yr event Inflow = 0.92 cfs @ 12.01 hrs, Volume= 0.063 of Outflow = 0.88 cfs @ 12.03 hrs, Volume= 0.061 af, Men=5%, Lag= 1.2 min Primary = 0.88 cfs @ 12.03 hrs, Volume= 0.061 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 168.56' @ 12.03 hrs Surf.Area= 364 sf Storage= 151 cf Flood Elev= 169.00' Surf.Area= 512 sf Storage=343 cf Plug-Flow detention time=28.2 min calculated for 0.061 of(98%of inflow) Center-of-Mass det. time= 13.2 min (805.6-792.5) Volume Invert Avail.Storage Storage Description #1 0,00, 640 of Custom Stage Data(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Storo Cum.Store feet s -ft cubic-feel cubic-feet 168.00 174 0 0 169.00 512 343 343 169.50 674 297 640 Device Routing Invert Outlet Devices 41 Primary 168.30' 2.0'long x 1.00'rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0'Crest Height Primary OutFlow Max=0.87 cfs @ 12.03 hrs HW=168.56' TW=162.48' (Dynamic Tailwater) t----1=Sharp-Crested Rectangular Weir (Weir Controls 0.87 cfs @ 1,72 fps) Summary for Pond 19P: Proposed In-line drain Inflow Area = 0.023 ac, Inflow Depth= 2.87" for 2 yr event Inflow = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Outflow = 0.09 cfs @ 12.00 hrs, Volume= 0.006 af, Atten=0%, Lag= 0.0 min Primary = 0.09 cfs @ 12.00 hrs, Volume= 0.006 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 1:1USERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type Ili 24-hr 2 yr Rainfall=3.10" Prepared by Rist-Frost-Shumway Engineering, P.G. Page 17 HydmCADO 8.01 s/n 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Peak Elev= 169.19'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices 411 Primary 169.00' 6.0" x 75.0 long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 168,25' S=0.0100 T Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.08 cfs @ 12.00 hrs HW=169.19' TW=168.53' (Dynamic Tailwater) t-1=Culvert (Outlet Controls 0.08 cfs @ 1.87 fps) Summary for Pond 20P: Proposed In-line Drain Inflow Area= 0.054 ac, Inflow Depth= 2.87" for 2 yr event Inflow = 0.20 cfs @ 12.00 hrs, Volume= 0.013 of Outflow = 0.20 cfs @ 12.00 hrs, Volume= 0.013 af, Atten=0%, Lag= 0.0 min Primary = 0.20 cfs @ 12.00 hrs, Volume= 0.013 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 168.53'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices t#1 Primary 168,25' 6.0" x 112.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 167.13' S=0.0100 7' Cc= 0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.20 cfs @ 12.00 hrs HW=168.53' TW=163.14' (Dynamic Tailwater) t---1=Culvert (Barrel Controls 0.20 cfs @ 2.53 fps) Summary for Pond 21 P: Proposed In-line Drain [87)Warning:Oscillations may require Finer Routing or smaller dt Inflow Area = 0.028 ac, Inflow Depth= 2.87" for 2 yr event Inflow = 0.10 cfs @ 12.00 hrs, Volume= 0.007 of Outflow - 0.10 cfs @ 12.00 hrs, Volume= 0.007 af, Atten= 1%, Lag= 0.2 min Primary - 0.10 cfs @ 12.00 hrs, Volume= 0.007 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 168.59' @ 12.03 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices 41 Primary 167,86' 6.0" x 50.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 167.36' S=0.0100 7' Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.10 cfs @ 12.00 hrs HW=168.58' TW=168.56' (Dynamic Tailwater) t-1=Culvert (Outlet Controls 0.10 cfs @ 0.51 fps) Summary for Pond 22P: Proposed in-line Drain [901 Warning:Qout>Qin may require Finer Routing or smaller dt [80)Warning: Exceeded Pond 21 P by 0.47'@ 14.64 hrs (0.38 cfs 0.315 at) Inflow Area = 0.031 ac, Inflow Depth= 2.87" for 2 yr event Inflow - 0A 1 cfs @ 12.00 hrs, Volume= 0.007 of Outflow = 0.12 cfs @ 12.00 hrs, Volume= 0.007 af, Atten=0%, Lag=0.0 min Primary = 0.12 cfs @ 12.00 hrs, Volume= 0.007 of I:IUSERSIENGR149841civilA984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-rev1 Type !11 24-hr 2 yr Rainfall=3.90" Prepared by Rist-Frost-Shurnway Engineering, f.C. Page 18 H droCAD®8.01 sin 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Routing by Dyn-Stor-Ind method, Time Span= 0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 168.57' @ 12.03 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 167,66 6.0" x 7.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 167.59' S=0.0100 7' Cc= 0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.11 cfs @ 12.00 hrs HW=168.55' TW=168.54' (Dynamic Tailwater) L1=Culvert (inlet Controls 0.11 cfs @ 0.58 fps) Summary for Pond 24P. Proposed Yard Drain Inflow Area = 0.404 ac, Inflow Depth = 1.81" for 2 yr event Inflow = 0.88 cfs @ 12.03 hrs, Volume= 0.061 of Outflow = 0.88 cfs @ 12.03 hrs, Volume= 0.061 af, Atten=0%, Lag=0.0 min Primary = 0.88 cfs @ 12.03 hrs, Volume= 0.061 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs, dt=0.01 hrs/5 Peak Elev= 162.48' @ 12.03 hrs Flood Elev= 166.75' Device Routing Invert Outlet Devices #1 Primary 162.00' 12.0" x 42.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 160.49' S=0.0360 7' Cc= 0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.87 cfs @ 12.03 hrs HW=162.48' TW=160.77' (Dynamic Tailwater) t--1=Culvert (Inlet Controls 0.87 cfs @ 2.36 fps) Summary for Pond 26P: Proposed Drain Manhole Inflow Area= 0.249 ac, Inflow Depth = 2.87" for 2 yr event Inflow = 0.86 cfs @ 12.02 hrs, Volume= 0.060 of Outflow = 0.86 cfs @ 12.02 hrs, Volume= 0.060 af, Atten=0%, Lag= 0.0 min Primary = 0.58 cfs @ 12.02 hrs, Volume= 0.058 of Secondary= 0.28 cfs @ 12,02 hrs, Volume= 0.002 of Routing by Dyn-Star-Ind method, Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 163.16' @ 12.02 hrs Flood Elev= 169.00' Device Routing Invert Outlet Devices #1 Primary 162.43' 6.0" x 48.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 161.95' S=0.0100 7' Cc=0.900 n=0.013 Corrugated PE,smooth interior 42 Secondary 162.90' 12.0" x 35.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 160.75' S=0.0614 7' Cc= 0.900 n= 0.013 Corrugated PE,smooth interior Primary Outflow Max=0.58 cfs @ 12.02 hrs HW=163.16' TW=162.21' (Dynamic Tailwater) "L1=Culvert (Barrel Controls 0.58 cfs @ 2.94 fps) Secondary OutFlow Max=0.28 cfs @ 12.02 hrs HW=163.16' TW=160.77' (Dynamic Tailwater) t----2=Culvert (inlet Controls 0.28 cfs @ 1.73 fps) t I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-rev1 Type 1!1 24-hr 2 yr Rainfall=3.90" Prepared by Rist-Frost-Shurriway Engineering, P.C. Page 19 H droCADO 8.01 sin 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 27P: Recharge Sytem [87)Warning: Oscillations may require Finer Routing or smaller dt Inflow Area 0.249 ac, Inflow Depth = 2.78" for 2 yr event Inflow = 0.58 cfs @ 12.02 hrs, Volume= 0.058 of Outflow - 0.57 cfs @ 12.04 hrs, Volume= 0.058 af, Alten= 1%, Lag= 1.1 min Discarded = 0.03 cfs @ 9.85 hrs, Volume= 0.039 of Primary - 0.54 cfs @ 12.04 hrs, Volume= 0.019 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 162.21'@ 12.04 hrs Surf.Area=277 sf Storage=471 cf Plug-Flow detention time=(not calculated:outflow precedes inflow) Center-of-Mass del. time= 76.7 min( 830.6- 753.9 ) Volume Invert Avail.Stora e Storage Description #1 0.00, 226 cf Custom Stage Data(Prismatic) Listed below(Recalc) 845 of Overall-279 cf Embedded=565 cf x 40.0%Voids #2 159.95' 279 cf 47.8"W x 30.0"H x 6.25'L Cultec R-330 x 6 inside#1 506 of Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 159.45 277 0 0 162.50 277 845 845 Device Routing Invert Outlet Devices #1 Primary 161.78' 8.0" x 11.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 160.02' S=0.16007 Cc=0.900 n= 0.013 Corrugated PE,smooth interior #2 Discarded 0.00' 4.600 in/hr Exfiltration over Horizontal area Discarded OutFlow Max=0.03 cfs @ 9.85 hrs HW=159.48' (Free Discharge) L2=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.54 cfs @ 12.04 hrs HW=162.21' TW=157.69' (Dynamic Tailwater) L1=Culvert (inlet Controls 0.54 cfs @ 2.24 fps) Summary for Pond 28P: Proposed Drain Manhole Inflow Area = 0.404 ac, Inflow Depth = 1.87" for 2 yr event Inflow = 1.15 cfs @ 12.03 hrs, Volume= 0.063 of Outflow - 1.15 cfs @ 12.03 hrs, Volume= 0.063 af, Atten=0%, Lag=0.0 min Primary = 1.15 cfs @ 12.03 hrs, Volume= 0.063 a€ Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 160.77'@ 12.03 hrs Flood Bev= 164.70' Device Routing Invert Outlet Devices #1 Primary 160.211' 12.0" x 50.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 157.10' S=0,0622 T Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=1.15 cfs @ 12.03 hrs HW=160.77' TW=158.66' (Dynamic Tailwater) L1=Culvert (Inlot Controls 1.15 cfs @ 2.54 fps) I:IUSERSIENGR149841civit14984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-reel Type III 24-hr 2 yr Rainfall=3.10" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 20 HydroCADD 8.01 sin 001039 ©2007 HydroCAD Software Solutions LLC _ 5/1/2007 Summary for Pond 29P: Proposed Drain Manhole Inflow Area = 0.654 ac, Inflow Depth = 1.50" for 2 yr event Inflow - 1.69 cfs @ 12.03 hrs, Volume= 0,082 of Outflow = 1.69 cfs @ 12.03 hrs, Volume= 0.082 af, Men=0%, Lag=0.0 min Primary = 1.69 cfs @ 12,03 hrs, Volume= 0.082 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 157.70'@ 12.03 hrs Flood Elev= 161.80' Device Routing Invert Outlet Devices _ #1 Primary 157.00' 12.0" x 157.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 153,00' S=0.0255 T Cc=0.900 n= 0.013 Corrugated PE,smooth interior Primary OutFlow Max=1.68 cfs @ 12.03 hrs HW=157.70' TW=149.70' (Dynamic Tailwater) 't-----1=Culvert (Inlet Controls 1.68 cfs @ 2.85 fps) Summary for Pond 30P: Detention Pond Inflow Area = 0,989 ac, Inflow Depth = 1.15" for 2 yr event Inflow = 1,76 cfs @ 12.03 hrs, Volume= 0.095 of Outflow - 0,18 cfs @ 12.76 hrs, Volume= 0.094 af, Atten=90%, Lag=43.6 min Primary - 0.18 cfs @ 12.76 hrs, Volume= 0.094 of Routing by Dyn-Stor-Ind method, Time Span=0,00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 150.19' @ 12.76 hrs Surf.Area= 2,591 sf Storage=2,131 cf Plug-Flow detention time= 250.9 min calculated for 0.094 of(99% of inflow) Center-of-Mass det. time= 247.4 min( 1,053.3-805.9 ) Volume Invert Avail.Storage Storage Description #1 0.00, 8,036 cf Custom Stage Data(Prismatic) Listed below(Recatc) Elevation Surf.Area Inc.Store Cum.Store feet s -ft cubic-feet cubic-feet 149.25 1,940 0 0 150.00 2,450 1,646 1,646 151.00 3,181 2,816 4,462 152.00 3,968 3,575 8,036 Device Routing Invert Outlet Devices #1 Primary 149,25' 12.0" x 50.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 148.75' S=0.0100 T Cc= 0.900 n=0.013 Corrugated PE,smooth interior #2 Device 1 149.25' 2.0"Vert.Orifice/Grate C=0.600 #3 Device 1 150.00' 4.0"Vert.Orifice/Grate C=0.600 #4 Device 1 151.00' 4.0"Vert. Orifice/Grate C=0.600 #5 Device 1 151,50' 2.00'x 2.00'Horiz. Orifice/Grate Limited to weir flow C=0.600 Primary OutFlow Max=0.18 cfs @ 12.76 hrs HW=150.19' TW=0.00' (Dynamic Tailwater) t--1=Culvert (Passes 0.18 cfs of 2.46 cfs potential flow) 2=OrificelGrate (Orifice Controls 0.10 cfs @ 4.46 fps) 3=0rificelGrate (Orifice Controls 0.08 cfs @ 1.49 fps) =OrificelGrate (Controls 0.00 cfs) 5=OrificelGrate {Controls 0.00 cfs) I I I:1LISERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-2yr-revl Type Ill 24-hr 2 yr Rainfall=3.10" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 21 H droCADO 8.01 s/n 001039 O 2007 Fl dmCAD Software Solutions LLC 5/1/2007 Summary for Pond 31 P: 6' "Downstream Defender" Inflow Area = 0.404 ac, Inflow Depth - 1.87" for 2 yr event Inflow = 1.15 cfs @ 12.03 hrs, Volume= 0.063 of Outflow = 1.15 cfs @ 12.03 hrs, Volume= 0.063 af, Atten= 0%, Lag= 0.0 min Primary - 1.15 cfs @ 12.03 hrs, Volume= 0.063 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt= 0,01 hrs/5 Peak Elev= 158.66'@ 12.03 hrs Flood Elev= 163.00' Device Routing Invert Outlet Devices ##1 Primary 158.10' 12.0" x 40.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 157.10' S= 0.0250 T Cc=0.900 n=0.013 Corrugated PE,smooth inferior Primary OutFlow Max=1.15 cfs @ 12.03 hrs HW=158.66' TW=157.70' (Dynamic Tailwater) L1=Culvert (Inlet Controls 1.15 cfs @ 2.54 fps) Summary for Pond LAKE: Lake Cochichewick [40] Hint: Not Described (Outflow=lnflow) Inflow Area= 3,830 ac, Inflow Depth > 0,92" for 2 yr event Inflow = 2,41 cfs @ 12.07 hrs, Volume= 0.294 of Primary = 2.41 cfs @ 12.07 hrs, Volume= 0.294 af, Atten=0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 I:IUSERS\ENGR149841civilt4984 Hydrocadl 4984 Brooks Science Center Post-Dev,-1Oyr-revl Prepared by Rist-Frost-Shu€nway Engineering, P.C. Page H droCAD®8.01 sln 001039 OO 2007 H droCAD Software Solutions LLC 5/1/2007 Area Listing (ail nodes) Area CN Description (acres) (subcatchment-numbers) 0.557 58 Woodstgrass comb.,Good,HSG B (6S,7S,$8) 1.967 61 >75%Grass cover,Good,HSG B (1S,3S,4S,5S,6S,78,9S,10S,12S,16S) 1.306 98 Paved parking&roofs (1S,2S,3S,4S,5S,6S,7S,8S,9S,10S,11S,12S,13S,16S,17S,19S,20S,21S,22S,23S) 3.830 TOTAL AREA I:IUSER31ENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Past-Dev.-10yr-revl Type !!! 24-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, RC, Page 2 HydroCADO 8.01 sin 001039 OO 2007 H droCAD Software Solutions LLC 5/1/2007 Time span=0.00-48.00 hrs, dt=0.01 hrs,4801 points x 5 Runoff by SCS TR-20 method, UH=SCS Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1 S: Drainage Area 1 Runoff Area=34,042 sf Runoff Depth=2.05" Flow Length=292' Slope=0.0790'I' Tc=4.9 min CN=75 Runoff=1.94 cfs 0.134 of Subcatchment 2S: Drainage Area 2 Runoff Area=1,109 sf Runoff Depth=4.26" Flow Length=22' Slope=0.7500'1' Tc=0.1 min CW98 Runoff=0.14 cfs 0,009 of Subcatchment 3S: Drainage Area 3 Runoff Area=9,400 sf Runoff Depth=1.33" Flow Length=147' Slope=0.0730 7' Tc=3.9 min CN=65 Runoff=0.34 cfs 0.024 of Subcatchment 4S: Drainage Area 4 Runoff Area=10,127 sf Runoff Depth=1.97" Flow Length=152' Slope=0.0800 T Tc=3.0 min CN=74 Runoff=0.59 cfs 0.038 of Subcatchment 5S: Drainage Area 5 Runoff Area=13,454 sf Runoff Depth=1.27" Flaw Length=154' Slope=0.0800'1' Tc=3.9 ruin CN=64 Runoff=0.45 cfs 0.033 of Subcatchment 6S: Drainage Area 6 Runoff Area=14,627 sf Runoff Depth=1.20" Flow Length=224' Slope=0.0900 T Tc=5.1 min CN=63 Runoff=0.44 cfs 0.034 of Subcatchment 7S: Drainage Area 7 Runoff Area=24,118 st Runoff Depth=1.20" Flaw Length=351' Slope=0.0710'1' Tc=8.3 min CN=63 Runoff=0.65 cfs 0.055 of Subcatchment 8S: Drainage Area 8 Runoff Area=18,654 sf Runoff Depth=1.27" Flow Length=378' Slope=0.0470'/' Tc=10.5 min CN=64 Runoff=0.50 cfs 0.045 of Subcatchment 9S: Drainage Area 9 Runoff Area=12,110 sf Runoff Depth=3.10" Flow Length=183' Slope=0.0670 7' Tc=2.5 min CN=87 Runoff=1.13 cfs 0.072 of Subcatchment 10S: Drainage Area 10 Runoff Area=1,827 sf Runoff Depth=3.60" Flow Length=34' 8lope=0.0740 T Tc=0.5 min CN=92 Runoff=0.20 cfs 0.013 of Subcatchment 11S: Drainage Area 11 Runoff Area=1,096 sf Runoff Depth=4.26" Flaw Length=22' Slope=0.7500 T Tc=0.1 min CN=98 Runoff=0.13 cts 0.009 of Subcatchment 12S: Drainage Area 12 Runoff Area=5,989 sf Runoff Depth=1.82" Flow Length=82' Slope=0.0550 7' Tc=2.3 min CN=72 Runoff=0.33 efs 0.021 of Subcatchment 13S: Drainage Area 13 Runoff Area=2,311 sf Runoff Depth=4.26" Flow Length=22' Slope=0.7500 T Tc=0.1 min CN=98 Runoff=0.28 cfs 0.019 of Subcatchment 16S: Drainage Area 16 Runoff Area=2,722 sf Runoff Depth=2.13" Flow Length=64' Slope=0.0780 7' Tc=1.4 min CN=76 Runoff=0.18 cfs 0.011 of Subcatchment 17S: Drainage Area 17 Runoff Area=3,019 sf Runoff Depth=4.26" Flow Length=120' Tc=0.4 min CN=98 Runoff=0.37 cfs 0.025 of Subcatchment 19S: Drainage Area 19 Runoff Area=1,011 sf Runoff Depth=4.26" Flow Length=23' Slope=0.7500 T Tc=0.1 min CN=98 Runoff=0.12 cfs 0.008 of Subcatchment 20S: Drainage Area 20 Runoff Area=1,331 sf Runoff Depth=4.26" Flow Length=23' Slope=0.7500'/' Tc=O.1 min CN=98 Runoff=0,16 cfs 0.011 of Subcatchment 21S: Drainage Area 21 Runoff Area=1,213 sf Runoff Depth=4.26" Flaw Length=24' Slope=0.7500'P Tc=D.1 min CN=98 Runoff=0.15 cfs 0.010 of Subcatchment 22S: Drainage Area 22 Runoff Area=149 sf Runoff Depth=4.26" Flow Length=24' Slope=0.7500'1' Tc=D.1 min CN=98 Runoff=0.02 cfs 0.001 of Subcatchment 23S: Drainage Area 23 Runoff Area=8,625 sf Runoff Depth=4.26" Flow Length=355' Tc=1.8 min CN=98 Runoff=1.00 cfs 0.070 of I:W8ERSIENGRi49841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-rev1 Type 11124-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 3 H droCAb®8.01 s!n 001039 ©2007 H d[oCAD Software Solutions LLC 5/1/2007 Pond 1 E: Existing CB Peak EIev=160.13' Inflow=1.94 cfs 0.134 of 12.0"x 188.0'Culvert Outflow=1.94 cfs 0.134 of Pored 1 P: Cistern Peak Elev=169.95' Inflow=0.14 cfs 0.009 at 8.0"x 12.0'Culvert Outflow=0.14 cfs 0.009 at Pond 2E: Existing CB Peak Elev=158.06' Inflow=0.92 cfs 0.062 of Primary=0.92 cfs 0.062 of Secondary=0.00 cfs 0.000 of Outflow=0.92 cfs 0.062 of Pond 2P: Proposed In-line drain Peak Eiev=170.42' Inflow=0.14 cfs 0.009 of 6.0"x 18.0'Culvert Outflow=0.14 cfs 0.009 of Pond 3E: Existing CB Peak Elev=158.46' Storage=9 cf Inflow=0.59 cfs 0.038 of Outflow=0.59 cfs 0.038 of Pond 4E: Reconstructed CB Peak Elev=156.43' Inflow=0.50 cfs 0.045 of Primary=0.50 cfs 0.045 at Secondary=0.00 cfs 0.000 of Outflow=0.50 cfs 0.045 of Pond 5E: Existing CB Peak Elev=167.70' Inflow=1.31 cfs 0.084 of 12.0"x 28.0'Cu€vert Outflow=1.31 cfs 0.084 of Pond 6E: Existing DMH Peak EIev=165.06' Inflow=1.31 cfs 0.084 of 12.0"x 240.0'Culvert Outflow=1.31 cfs 0.084 of Pond 7E: Existing DMH Peak EIev=155.52' Inflow=1.55 cfs 0.130 of 10.0"x 257.0'Culvert Outflow=1.55 cfs 0.130 of Pond 10P: Proposed CB Peak EIev=168.33' Inflow=0.20 cfs 0.013 of 12.0"x 29.0'Culvert Outflow=0.20 cfs 0.013 of Pond 11P: Proposed In-line drain Peak EIev=170.58' Inflow=0.13 cfs 0.009 of 6.0"x 35.0'Culvert Outflow=0.13 cfs 0.009 at Pond 12P: Upper Wet/Dry Garden Peak Elev=169.60' Storage=114 cf Inflow=1.06 cfs 0.073 of Outflow=1.04 cfs 0.072 of Pond 13P: PROPOSED YARD DRAIN Peak EIev=170.73' Inflow=0.28 cfs 0.019 of 8.0"x 42.0'Culvert Outflow=0.28 cfs 0.019 of Pond 16P: Lower Wet/Dry Garden Peak Elev=168,66' Storage=190 cf Inflow=1.51 cfs 0.103 of Outflow=1.44 cfs 0.101 of Pond 19P: Proposed In-line drain Peak Elev=169.23' Inflow=0.12 cfs 0.008 of 6.0"x 75.0'Culvert Outflow=0.12 cfs 0.008 of Pond 20P: Proposed In-line Drain Peak Elev=168.60' Inflow=0.29 cfs 0.019 of 6.0"x 112.0'Culvert Outflow=0.29 cfs 0.019 at Pond 21P: Proposed In-line Drain Peak EIev=168.73' Inflow=0.15 cfs 0.010 of 6.0"x 50.0'Culvert Outflow=0.15 cfs 0.010 of Pond 22P: Proposed In-line Drain Peak EIev=168.69' Inflow=0.17 cfs 0.011 of 6.0"x 7.0'Culvert Outflow=0.17 cfs 0.011 of Pond 24P: Proposed Yard Drain Peak EIev=162.64' Inflow=1.44 cfs 0.101 at 12.0"x 42.0'Culvert Outflow=1.44 cfs 0.101 of Pond 26P: Proposed Drain Manhole Peak Elev=163.30' lnflow=1.25 cfs 0.089 of Primary=0.63 cfs 0.083 at Secondary=0.62 cfs 0.006 of Outflow=1.25 cfs 0.089 of Pond 27P: Recharge Sytem Peak EIev=162.24' Storage=474 cf Inflow=0.63 cfs 0.083 of Discarded=0.03 cfs 0.046 of Primary=0.59 cfs 0.036 of Outflow=0,62 cfs 0.083 of I:IUSERSIEIVGR14984lcivi1A984 Hydrocadk 4984 Brooks Science Center Post-Dev.-10yr-revl Type III 24-hr 10 yr Rainfall=4.55" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 4 H droCAD®8.01 sln 001039 O 2007 H droCAD Software Solutions LLC 5l112007 Pond 28P: Proposed Drain Manhole Peak Eiev=161.01' Inflow=2.05 cfs 0.107 of 12.0"x 50.0'Culvert OutflowM2.05 cfs 0.107 of Pond 29P: Proposed Drain Manhole Peak Elev=157.99' Inflow=2.65 cfs 0.144 of 12.0"x 157.0'Culvert Outflow=2.65 cfs 0.144 of Pond 30P: Detention Pond Peak Elev=150.75' Storage=3,683 cf Inflow=2.97 cfs 0.177 of Outflow=0.45 cfs 0.177 of Pond 31 P: 6'"Downstream Defender" Peak Elev=158.90' Inflow=2.05 cfs 0.107 of 12.0"x 40.0'Culvert Outflow=2.05 cfs 0.107 of Pond LAKE: Lake Cochichewick Intow=5.56 cfs 0.590 of Primary=5.56 cfs 0.590 at Total Runoff Area=3.830 ac Runoff Volume=0.640 of Average Runoff Depth=2.01" 65.91%Pervious Area=2.524 ac 34.09%Impervious Area=1.306 ac is I:IUSFRSIFNGR149841civilt4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr•rev1 Type I// 24-hr 10 yr Rainfafl=4,50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 5 HydroCAD®8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment IS: Drainage Area 1 Runoff = 1,94 cfs @ 12.08 hrs, Volume= 0.134 af, Depth= 2.05" Runoff by SCS TR-20 method, UH=SCS,Time Span=0,00-48.00 hrs, dt= 0.01 hrs Type Ill 24-hr 10 yr Rainfall=4.50" Area sf ON Description 12,847 98 Paved parking & roofs 21,195 61 >75% Grass cover, Good, HSG t3 34,042 75 Weighted Average 21,195 Pervious Area 12,847 Impervious Area To Length Slope Velocity Capacity Description rain feet ft/ft fUsec) (cfs 4.9 292 0.0790 0.99 Lag/CN Method, Summary for Subcatchment 2S: Drainage Area 2 Runoff - 0.14 cfs @ 12.00 hrs, Volume= 0,009 af, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 1,109 98 Paved parking&roofs 1,109 Impervious Area To Length Slope Velocity Capacity Description min feet ft/ft) (fUsec) (cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" Summary for Subcatchment 3S: Drainage Area 3 Runoff - 0.34 cfs @ 12,07 hrs, Volume= 0.024 af, Depth= 1,33" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs,dt=0,01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 1,022 98 Paved parking& roofs 8,378 61 >75% Grass cover, Good HSG 13 9,400 65 Weighted Average 8,378 Pervious Area 1,022 Impervious Area To Length Slope Velocity Capacity Description min feet fuft ft/sec cfs 3.9 147 0.0730 0.63 Lag/CN Method, Summary for Subcatchment 4S: Drainage Area 4 Runoff = 0.59 efs @ 12.05 hrs, Volume= 0.038 af, Depth= 1.97" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type Ill 24-hr 10 yr Rainfafl=4.50" I:IUSERSIENGR149841civif14984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-rev1 Type 11124-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 6 H droCAD®8.01 s/n 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Area s# CN Description 3,682 98 Paved parking &roofs 6,445 61 >75% Grass cover,Good, HSG B 10,127 74 Weighted Average 6,445 Pervious Area 3,682 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 3.0 152 0.0800 0.85 Lag/CN Method, Summary for Subcatchment 5S: Drainage Area 5 Runoff = 0.45 cfs @ 12.07 hrs, Volume= 0.033 af, Depth= 1.27" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt= 0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 1,179 98 Paved parking&roofs 12,275 61 >75% Grass cover, Good HSG B 13,454 64 Weighted Average 12,275 Pervious Area 1,179 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 3.9 154 0.0800 0.65 Lag/CN Method, Summary for Subcatchment 6S: Drainage Area 6 Runoff = 0.44 cfs @ 12.09 hrs, Volume= 0.034 af, Depth= 1.20" Runoff by SGS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area (sf) CN Description 1,065 98 Paved parking &roofs 10,175 61 >75% Grass cover, Good, HSG B 3,387 58 Woods/grass comb., Good HSG B 14,627 63 Weighted Average 13,562 Pervious Area 1,065 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (Rift) (ft/sec) (cfs) 5.1 224 0.0900 0.73 Lag/CN Method, Summary for Subcatchment 7S: Drainage Area 7 Runoff = 0.65 cfs @ 12.13 hrs, Volume= 0.055 af, Depth= 120" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-revl Type /it 24-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 7 H droCAD®8.01 s/n 001039 OO 2007 H droCAD Software Solutions LLC 5/1/2007 Area sf CN Description 1,472 98 Paved parking & roofs 17,436 61 >75% Grass cover, Good, HSG 8 5,210 58 Woods/grass comb., Good, HSG B 24,118 63 Weighted Average 22,646 Pervious Area 1,472 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft) (fUsec) (cfs 8.3 351 0.0710 0.71 Lag/CN Method, Summary for Subcatchment 8S: Drainage Area 8 Runoff = 0.50 cfs @ 12.16 hrs, Volume= 0.045 af, Depth= 1.27" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-48.00 hrs,dt= 0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 2,996 98 Paved parking & roofs 15,658 58 Woods/grass comb. Good, HSG B 18,654 64 Weighted Average 15,658 Pervious Area 2,996 Impervious Area Tc Length Slope Velocity Capacity Description (min) {feet) (ft/ft) (ftlsec) (cfs) 10.5 378 0.0470 0.60 Lag/CN Method, Summary for Subcatchment 9S: Drainage Area 9 Runoff = 1.13 cfs @ 12.04 hrs, Volume= 0.072 af, Depth= 3.10" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt= 0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area (sf) CN Description 8,367 98 Paved parking &roofs 3,743 61 >75% Grass cover, Good HSG 8 12,110 87 Weighted Average 3,743 Pervious Area 8,367 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (fusee) (cfs) 2.5 183 0.0670 1.23 Lag/CN Method, Summary for Subcatchment 10S: Drainage Area 10 Runoff = 0.20 cfs @ 12.01 hrs, Volume= 0.013 af, Depth= 3.60" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" I:IUSERSIENGRt49841civA4984 Hydrocadl 4984 Brooks Science Center Post-Qev.-10yr-rev1 Type !1! 24-hr 90 yr Rarnfa11=4.50" Prepared by Rist-Frost-Shumvray Engineering, P.C. Page 8 HydroCADO 8.01 sln 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Area (sf) CN Description 1,549 98 Paved parking & roofs 278 61 >75%Grass cover, Good, HSG B 1,827 92 Weighted Average 278 Pervious Area 1,549 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft) (fUsec) (cfs 0.5 34 0.0740 1.13 LaglCN Method, Summary for Subcatchment 11S: Drainage Area 11 Runoff = 0.13 cfs @ 12.00 hrs, Volume= 0.009 af, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN ..Description 1,096 98 Paved parking & roofs 1,096 Impervious Area Tc Length Slope Velocity Capacity Description min feet ftlft ftlsec cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" Summary for Subcatchment 12S: Drainage Area 12 Runoff = 0.33 cfs @ 12.04 hrs, Volume= 0.021 af, Depth= 1.82" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 1,845 98 Paved parking &roofs 4 144 61 >75% Grass cover, Good HSG B 5,989 72 Weighted Average 4,144 Pervious Area 1,845 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft ftlsec cfs 2.3 82 0.0550 0.59 Lag/CN Method, Summary for Subcatchment 13S: Drainage Area 13 Runoff = 0.28 cfs @ 12.00 hrs, Volume= 0.019 af, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0,00-48.00 hrs, dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 2,311 98 Paved parking &roofs 2,311 Impervious Area L\USERSIENGR149841c1vih4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-revl Type J1124-hr 90 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 9 HydroCAD®8.01 sin 001039 OO 2007 H droCAD Software Solutions LLC 5/1/2007 Tc Length Slope Velocity Capacity Description min feet (ft/ft) ft/see cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" Summary for Subcatchment 16S: Drainage Area 16 Runoff = 0.18 cfs @ 12.02 hrs, Volume= 0.011 af, Depth= 2.13" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf GN _Description 1,088 98 Paved parking & roofs 1,634 61 >75%Grass cover, Good, HSG 8 2,722 76 Weighted Average 1,634 Pervious Area 1,088 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft1sec) (cfs) 1.4 64 0.0780 0.75 LaglCN Method, Summary for Subcatchment 17S: Drainage Area 17 Runoff = 0.37 cfs @ 12.01 hrs, Volume= 0.025 af, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0,00-48.00 hrs, dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 3,019 98 Paved parking & roofs 3,019 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft fUsec) (cfs 0.1 30 0.7500 4.54 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" 0.2 50 0.0200 4.90 1.71 Circular Channel (pipe), Roof Drain Diam=8.0" Area=0.3 sf Perim= 2.1' r= 0.17' n=0.013 0.1 40 0.0250 7.17 5.63 Circular Channel (pipe), Roof Drain Diam= 12.0" Area=0.8 sf Perim=3.1' r= 0.25' n=0.013 0.4 120 Total Summary for Subcatchment 19S: Drainage Area 19 Runoff = 0.12 cfs @ 12.00 hrs, Volume= 0,008 af, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 1,011 98 Paved parking & roofs 1,011 impervious Area Tc Length Slope Velocity Capacity Description (min) feet) (ft/ft) (ft/sec) (cfs) 0.1 23 0.7500 4.30 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" I:IUSERSIENGR\49841civ1114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-rev1 Type 1ii 24-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 10 HdroCADO 8.01 s!n 0{31039 ©2007 H draCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 20S: Drainage Area 20 Runoff = 0.16 cfs @ 12.00 hrs, Volume= 0.011 at, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 1,331 98 Paved parking & roofs 1,331 Impervious Area Tc Length Slope Velocity Capacity Description ruin feet ft/ft ft/sec cfs 0.1 23 0.7500 4.30 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" Summary for Subcatchment 21S: Drainage Area 21 Runoff — 0.15 cfs @ 12,00 hrs, Volume= 0.010 af, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area (st) CN Description 1,213 98 Paved parking &roofs 1,213 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 0.1 24 0.7500 4.34 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" Summary for Subcatchment 22S: Drainage Area 22 Runoff = 0.02 cfs @ 12.00 hrs, Volume= 0.001 at, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description. 149 98 Paved parking &roofs 149 Impervious Area Tc Length Slope Velocity Capacity Description rain feet ft/ft) (fUsec) (cfs 0.1 24 0,7500 4.34 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" Summary for Subcatchment 23S: Drainage Area 23 Runoff - 1.00 cfs @ 12.03 hrs, Volume= 0.070 af, Depth= 4.26" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 10 yr Rainfall=4.50" Area sf CN Description 8,525 98 Paved parking & roofs 8,525 Impervious Area I:%USERSIENGR149841civi114984 Hydrocadl 49$4 Brooks Science Center Post-Dev.-10yr-revl Type 111 24-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 11 H droCAD®8.01 sin 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Tc Length Siope Velocity Capacity Description min feet f/ft ftlsec cfs 0.7 50 0.0200 1.18 Sheet Plow,Across Flat Roof Smooth surfaces n=0.011 P2= 3.10" 0.8 225 0.0200 4.90 1.71 Circular Channel (pipe), Roof Drain in building Diam= 8.0" Area=0.3 sf Perim=2.1' r= 0.17' n=0.013 Cast iron, coated 0.3 80 0.0100 4.54 3.56 Circular Channel (pipe), Roof drain outside building Diam= 12.0" Area= 0.8 sf Perim=3.1' r= 0.25' n=0.013 Corrugated PE smooth interior 1.8 355 Total Summary for Pond 1 E: Existing CB Inflow Area = 0.781 ac, Inflow Depth = 2.05" for 10 yr event Inflow = 1.94 cfs @ 12.08 hrs, Volume= 0.134 of Outflow = 1.94 cfs @ 12.08 hrs, Volume= 0.134 af, Atten=0%, Lag= 0.0 min Primary = 1.94 cfs @ 12.08 hrs, Volume= 0.134 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 160.13'@ 12.08 hrs Flood Elev= 162,90' Device Routing Invert Outlet Devices #1 Primary 159.36' 12.0" x 188.0' long Culvert RCP, square edge headwall, Ke= 0.500 Outlet Invert= 150.21' S=0.0487 T Cc=0.900 n=0.012 Concrete pipe,finished Primary OutFlow Max=1.94 cfs @ 12.08 hrs HW=160.13' TW=0.00' (Dynamic Tailwater) t-1=Culvert (inlet Controls 1.94 cfs @ 2.99 fps) Summary for Pond 1 P: Cistern Inflow Area = 0.025 ac, Inflow Depth= 4.26" for 10 yr event Inflow = 0.14 cfs @ 12.00 hrs, Volume= 0.009 of Outflow = 0.14 cfs @ 12.00 hrs, Volume= 0.009 af, Atten=0%, Lag= 0.0 min Primary - 0.14 cfs @ 12.00 hrs, Volume= 0.009 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 169.95'@ 12.00 hrs Device Routing Invert Outlet Devices 91 Primary 169.75' 8.0" x 12.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 169.00' S=0.0625 T Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary Outflow Max=0.14 cfs @ 12.00 hrs HW=169.95' TW=168.63' (Dynamic Tailwater) "-1=Culvert (Inlet Controls 0.14 cfs @ 1.53 fps) Summary for Pond 2E: Existing CB Inflow Area = 0.448 ac, Inflow Depth = 1.66" for 10 yr event Inflow - 0.92 cfs @ 12.07 hrs, Volume= 0.062 of Outflow = 0.92 efs @ 12.07 hrs, Volume= 0.062 A Atten= 0%, Lag= 0.0 min Primary = 0.92 cfs @ 12.07 hrs, Volume= 0.062 of Secondary- 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 158.06'@ 12.07 hrs Flood Elev= 160.60' I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-rev1 Type III 24-hr 90 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 12 HydroCAD®8.01 s/n 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Device Routing Invert Outlet Devices 91 Primary 156,86' 6.0" x 200.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 150.04' S= 0.0341 7 Cc=0.900 n=0.010 PVC, smooth interior #2 Secondary 160,40' 2.00'x 2.00'Horiz.Orifice/Grate Limited to weir flow C= 0.600 Primary OutFlow Max=0.92 cfs @ 12.07 hrs HW=158.06' TW=0.00' (Dynamic Tailwater) 't---1=Culvert (Inlet Controls 0.92 cfs @ 4.68 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=156.86' TW=0.00' (Dynamic Tailwater) t -2=0rif€ce/Grate ( Controls 0.00 cfs) Summary for Pond 2P: Proposed In-fine drain Inflow Area = 0.025 ac, Inflow Depth = 4.26" for 10 yr event Inflow = 0.14 cfs @ 12.00 hrs, Volume= 0.009 of Outflow = 0.14 cfs @ 12.00 hrs, Volume= 0.009 af, Atten= 0%, Lag=0.0 min Primary = 0.14 cfs @ 12.00 hrs, Volume= 0.009 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs/5 Peak Elev= 170.42'@ 12.00 hrs Flood Elev= 172,00' Device Routing Invert Outlet Devices #1 Primary 170.18' 6.0" x 18.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 170.00' S= 0.0100 T Cc=0.900 n= 0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.14 cfs @ 12.00 hrs HW=170.42' TW=169.95' (Dynamic Tailwater) L1=Culvert (Barrel Controls 0.14 cfs @ 2-12 fps) Summary for Pond 3E: Existing CB Inflow Area = 0.232 ac, Inflow Depth = 1.97" for 10 yr event Inflow = 0.59 cfs @ 12.05 hrs, Volume= 0.038 of Outflow - 0.59 cfs @ 12.05 hrs, Volume= 0.038 af, Men= 0%, Lag= 0.0 min Primary - 0.59 cfs @ 12.05 hrs, Volume= 0.038 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 158.46'@ 12.07 hrs Surf.Area= 13 sf Storage= 9 cf Flood Elev= 160.00' Surf.Area= 330 sf Storage=51 cf Plug-Flow detention time=0.7 min calculated for 0.038 of(100% of inflow) Center-of-Mass dot,time=0.6 min (840.5-839.9 ) Volume Invert Avail.Stora e Storage Description #1 0.00, 51 cf Custom Stage Data(Prismatic)Listed below(Recale) Elevation Surf.Area Inc.Store Cum.Slore {foot} (sq-ft) (cubic-feet) (cubic-feet) 157.76 13 0 0 159.86 13 27 27 160.00 330 24 51 Device Routing Invert Outlet Devices #1 Primary 157.76' 6.0" x 34.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 157.23' S=0.0156 T Cc=0.900 n= 0.010 PVC,smooth interior #2 Primary 159,86' 2.00'x 2.00'Horiz.Orifice/Grale Limited to weir flow C=0.600 Primary OutFlow Max=0.55 cfs @ 12.05 hrs HW=158.40' TW=158.04' (Dynamic Tailwater) �1=Culvert (Outlet Controls 0.55 cfs @ 2.85 fps) 2=Orifice/Grate ( Controls 0.00 cfs) f I:IUSERSIENGR149841civ1I14984 Hydrocadl 4984 Brooks Science Center Post-Dev.-loyr-rev1 Type I1124-hr 90 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 13 H+LdroCAD®8.01 sIn 001039 ©2007 HydroCAD Software Solutions LLC 511/2007 Summary for Pond 4E: Reconstructed CB Inflow Area= 0.428 ac, Inflow Depth = 1.27" for 10 yr event Inflow - 0.50 cfs @ 12.16 hrs, Volume= 0.045 at Outflow - 0.50 cfs @ 12.16 hrs, Volume= 0.045 at, Atten=0%, Lag= 0.0 min Primary - 0.50 cfs @ 12.16 hrs, Volume= 0.045 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 156.43'@ 12.16 hrs Flood Elev= 160.00' Device Routing Invert Outlet Devices 41 Primary 156,00' 8.0" x 35.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 155.65' S=0.0100 T Cc= 0.900 n=0.013 Clay tile #2 Secondary 159,80' 2.00'x 2.00'Horiz.Orifice/Grate Limited to weir flow C= 0.600 Primary OutFlow Max=0.50 cfs @ 12.16 hrs HW=156.43' TW=155.35' (Dynamic Tailwater) 't-#Culvert (Barrel Controls 0.50 cfs @ 2.94 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=156.00' TW=0.00' (Dynamic Tailwater) Z2=OrificelGrate (Controls 0.00 cfs) Summary for Pond SE: Existing CB Inflow Area= 0.320 ac, inflow Depth = 3.16" for 10 yr event Inflow = 1.31 cfs @ 12.03 hrs, Volume= 0M64 of Outflow 1.31 cfs @ 12.03 hrs, Volume= 0.084 at, Atten=0%, Lag= 0.0 min Primary = 1.31 cfs @ 12.03 hrs, Volume= 0.084 of Routing by Dyn-Star-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 167.70'@ 12.03 hrs Flood Elev= 171.83' Device Routing Invert Outlet Devices #1 Primary 167.10' 12.0" x 28.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 164.50' S=0.0929 T Cc= 0.900 n=0.010 PVC, smooth interior Primary OutFlow Max=1.30 cfs @ 12.03 hrs HW=167.70' TW=165.06' (Dynamic Tailwater) t1=Culvert (Inlet Controls 1.30 cfs @ 2.64 fps) Summary for Pond 6E: Existing DMH Inflow Area = 0.320 ac, Inflow Depth= 3.16" for 10 yr event Inflow = 1.31 cfs @ 12.03 hrs, Volume= 0.084 at Outflow = 1.31 cfs @ 12.03 hrs, Volume= 0.084 at, Atten= 0%, Lag=0.0 min Primary = 1.31 cfs @ 12.03 hrs, Volume= 0.084 at Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs!5 Peak Elev= 165.06'@ 12.03 hrs Flood Elev= 170.73' Device Routing Invert Outlet Devices 41 Primary 164,46' 12.0" x 240.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 154.69' S=0.0407 7' Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.30 cfs @ 12.03 hrs HW=165.06' TW=155.52' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 1.30 cfs @ 2.64 fps) I:IUSERSIENGR149841c1vi114984 Hydrocadl 4984 Brooks Science Center Past-Dev.»10yr-revl Type 111 24-hr 90 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 14 HvdroCAD@ 8.01 sln 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 7E: Existing DMH Inflow Area= 0.748 ac, Inflow Depth = 2.08" for 10 yr event Inflow = 1.55 cfs @ 12.04 hrs, Volume= 0.130 of Outflow = 1.55 cfs @ 12.04 hrs, Volume= 0.130 af, Atten=0%, Lag=0.0 min Primary = 1.55 cfs @ 12.04 hrs, Volume= 0.130 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 155.52'@ 12.04 hrs Flood Elev= 158.85' Device Routing Invert Outlet Devices #1 Primary 154.76' 10.0" x 257.0`long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 143.30' S=0.0446 T Cc=0.900 n=0.013 Clay tile Primary OutFlow Max=1.55 cfs @ 12.04 hrs HW=155,52' TW=0.00' (Dynamic Tailwater) t--1=Culvert (Inlet Controls 1.55 cfs @ 2.97 fps) Summary for Pond 10P: Proposed CB Inflow Area = 0.042 ac, Inflow Depth = 3.60" for 10 yr event Inflow = 0.20 cfs @ 12.01 hrs, Volume= 0.013 of Outflow = 0.20 cfs @ 12.01 hrs, Volume= 0.013 af, Atten=0%, Lag=0.0 min Primary = 0.20 cfs @ 12.01 hrs, Volume= 0.013 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 168.33'@ 12.01 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices 91 Primary 168.10' 12.0" x 29.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 167.81' S=0.0100 T Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary Outflow Max=0.20 cfs @ 12.01 hrs HW=168.33' TW=167.67' (Dynamic Tailwater) t--1=Culvert (Barrel Controls 0.20 cfs @ 2.26 fps) Summary for Pond 11 P: Proposed In-fine drain Inflow Area = 0.025 ac, Inflow Depth = 4.26" for 10 yr event Inflow = 0.13 cfs @ 12.00 hrs, Volume= 0.009 of Outflow = 0.13 cfs @ 12.00 hrs, Volume= 0.009 af, Atten= 0%, Lag=0.0 min Primary = 0.13 cfs @ 12.00 hrs, Volume= 0.009 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 170.58'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices ##1 Primary 170.35' 6.0" x 35.0'long Culvert CPP, square edge headwall, Ke=0,500 Outlet Invert= 170.00' S=0.0100'P Ce=0.900 n=0.013 Corrugated PE,smooth interior Primary Outflow Max=0.13 cfs @ 12.00 hrs HW=170.58' TW=169.59' (Dynamic Tailwater) t---1=Culvert (Barrel Controls 0.13 cfs @ 2.20 fps) I:IUSERSIENGR149841civih4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-rev1 Type I1124-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 15 H droCADO 8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 511/2007 Summary for Pond 12P: Upper Wet/Dry Garden Inflow Area = 0.285 ac, Inflow Depth = 3.09" for 10 yr event Inflow - 1.06 cfs @ 12.01 hrs, Volume= 0.073 of Outflow - 1.04 cfs @ 12.02 hrs, Volume= 0.072 A Atten= 1%, Lag= 0.5 min Primary = 1.04 cfs @ 12.02 hrs, Volume= 0.072 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 169.60'@ 12.02 hrs Surf.Area= 143 sf Storage= 114 cf Flood Elev= 170.50' Surf.Area=343 sf Storage= 315 of Plug-Flow detention fime=29.4 min calculated for 0.072 of(98%of inflow) Center-of-Mass det.time= 14.4 min( 787.4-773.0 ) Volume Invert Avail-Storage Storage Description #1 0.00' 315 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ff) (cubic-feet) (cubic-feet) 168.00 22 0 0 169.00 76 49 49 170.00 189 133 182 170.50 343 133 315 Device Routing Invert Outlet Devices #1 Primary 169.30' 2.0'long x 1,00'rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.5'Crest Height Primary Outflow Max=1.04 cfs @ 12.02 hrs HW=169.60' TW=168.66' (Dynamic Tailwater) L1=Sharp-Crested Rectangular Weir (Weir Controls 1.04 cfs @ 1.82 fps) Summary for Pond 13P: PROPOSED YARD DRAfN Inflow Area = 0.053 ac, Inflow Depth = 4.26" for 10 yr event Inflow - 0.28 cfs @ 12.00 hrs, Volume= 0.019 of Outflow - 0.28 cfs @ 12.00 hrs, Volume= 0.019 af, Atten= 0%, Lag=0.0 min Primary - 0.28 cfs @ 12.00 hrs, Volume= 0.019 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 170.73'@ 12.00 hrs Flood Elev= 176.00' Device Routing Invert Outlet Devices #1 Primary 170.42' 8.0" x 42.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 170.00' S=0.0100 T Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=028 cfs @ 12.00 hrs HW=170.73' TW=169.59' (Dynamic Tailwater) L1WCulvert (Barrel Controls 0.28 cfs @ 2.61 fps) Summary for Pond 16P: Lower Wet/Dry Garden Inflow Area = 0.404 ac, Inflow Depth= 3.05" for 10 yr event Inflow = 1.51 cfs @ 12.01 hrs, Volume= 0.103 of Outflow = 1.44 cfs @ 12.03 hrs, Volume= 0.101 af, Atten=4%, Lag= 1.1 min Primary = 1.44 cfs @ 12.03 hrs, Volume= 0.101 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs/5 Peak Elev= 168.66'@ 12.03 hrs Surf.Area=398 sf Storage= 190 cf Flood Elev= 169.00' Surf.Area= 512 sf Storage=343 cf IaUSERSIENGR14984lcivi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-revl Type #11 24-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 16 HydroCADO 8.01 s/n 001039 ©2007 HydroCAD Software Solutions LLC 511l2007 Plug-Flow detention time= 19.5 min calculated for 0.101 of(98%of inflow) Center-of-Mass det.time= 10.1 min ( 794.0-784.0 ) Volume Invert Avail.Stora e Storage Description #1 0.00, 640 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 168.00 174 0 0 169.00 512 343 343 169.50 674 297 640 Device Routing Invert Outlet Devices #1 Primary 168.30' 2.0'long x 1.00' rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0'Crest Height Primary OutFlow Max=1.44 cfs @ 12.03 hrs HW=168.66' TW=162.64' (Dynamic Tailwater) L1=Sharp-Crested Rectangular Weir (Weir Controls 1.44 cfs @ 2.06 fps) Summary for Pond 19P: Proposed In-line drain Inflow Area = 0.023 ac, Inflow Depth = 4.26" for 10 yr event Inflow = 0.12 cfs @ 12.00 hrs, Volume= 0.008 of Outflow = 0.12 cfs @ 12.00 hrs, Volume= 0.008 af, Atten=0%, Lag=0.0 min Primary - 0.12 cfs @ 12.00 hrs, Volume= 0.008 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs!5 Peak Elev= 169.23'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices ##1 Primary 169.00' 6.0" x 75.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 168.25' S=0.0100 7' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.12 cfs @ 12.00 hrs HW=169.23' TW=168.60' (Dynamic Tailwater) t---1=Culvert (Outlet Controls 0.12 cfs @ 2.03 fps) Summary for Pond 20P: Proposed In-line Drain Inflow Area = 0.054 ac, Inflow Depth= 4.26" for 10 yr event Inflow - 0.29 cfs @ 12.00 hrs, Volume= 0.019 of Outflow - 0.29 cfs @ 12.00 hrs, Volume= 0.019 af, Atten=0%, Lag=0.0 min Primary - 0.29 cfs @ 12.00 hrs, Volume= 0.019 of Routing by Dyn-Stor-Ind method, Time Spam=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 168.60'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 168.25' 6.0" x 112.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 167.13' S=0.0100'1' Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.29 cfs @ 12.00 hrs HW=168.60' TW=163.27' (Dynamic Tailwater) L1=Culvert (Barrel Controls 0.29 cfs @ 2.78 fps) 1:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-revl Type Ill 24-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 17 HydroCAD®R 8.01 s/n 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Summary for Pond 21 P: Proposed In-line Drain Inflow Area = 0.028 ac, Inflow Depth = 4.26" for 10 yr event Inflow 0.15 cfs @ 12.00 hrs, Volume= 0.010 of Outflow = 0.15 cfs @ 12.00 hrs, Volume= 0.010 af, Atten= 0%, Lag= 0.0 min Primary = 0.15 cfs @ 12.00 hrs, Volume= 0.010 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs, dt= 0.01 hrs 15 Peak Elev= 168.73'@ 12.02 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices 91 Primary 167.86' 6.0" x 50.0' long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 167.36' S=0.0100'I' Cc= 0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.15 cfs @ 12.00 hrs HW=168.71' TW=168.66' (Dynamic Tailwater) Z1=Culvert (Outlet Controls 0.15 cfs @ 0.76 fps) Summary for Pond 22P: Proposed In-line Drain Inflow Area= 0.031 ac, Inflow Depth= 4.26" for 10 yr event Inflow - 0A7 cfs @ 12.00 hrs, Volume= 0.011 of Outflow - 0.17 cfs @ 12.00 hrs, Volume= 0.011 af, Atten= 1%, Lag=0.0 min Primary = 0.17 cfs @ 12.00 hrs, Volume= 0.011 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs!5 Peak Elev= 168.69'@ 12.03 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 167.66' 6.0" x 7.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 167.59' S=0.0100'I' Cc= 0.900 n= 0,013 Corrugated PE, smooth interior Primary Outflow Max=0.17 cfs @ 12.00 hrs HW=168.66' TW=168.63' (Dynamic Tailwater) t---1=Culvert (inlet Controls 0.17 cfs @ 0.85 fps) Summary for Pond 24P: Proposed Yard Drain Inflow Area = 0.404 ac, Inflow Depth = 3.00" for 10 yr event Inflow - 1.44 cfs @ 12.03 hrs, Volume= 0.101 of Outflow - 1.44 cfs @ 12.03 hrs, Volume= 0.101 af, Atten= 0%, Lag= 0.0 min Primary = 1.44 cfs @ 12.03 hrs, Volume= 0.101 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs/5 Peak Bev= 162.64'@ 12.03 hrs Flood Elev= 166.75' Device Routing Invert Outlet Devices #1 Primary 162.00' 12.0" x 42.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 160.49' S= 0.0360 T Cc=0.900 n=0,013 Corrugated PE, smooth interior Primary OutFlow Max=1.44 cfs @ 12.03 hrs HW=162.64' TW=161.01' (Dynamic Tailwater) t1=Culvert (Inlet Controls 1.44 cfs @ 2.72 fps) I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-10yr-rev? Type 11124-hr 10 yr Rainfal1=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 18 H groCADO 8.01 sln 001039 ©2007 H dfoCAD Software Solutions LLC 5/1/2007 Summary for Pond 26P: Proposed Drain Manhole Inflow Area= 0.249 ac, Inflow Depth= 4.26" for 10 yr event Inflow = 1.25 cfs @ 12.02 hrs, Volume= 0.089 of Outflow = 1.25 cfs @ 12.02 hrs, Volume= 0.089 af, Atten=0%, L.ag= 0.0 min Primary M 0.63 cfs @ 12.02 hrs, Volume= 0.083 of Secondary W 0.62 cfs @ 12.02 hrs, Volume= 0.006 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 163.30' @ 12.02 hrs Flood Elev= 169.00' Device Routin Invert Outlet Devices 41 Primary MAX 6.0" x 48.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 16l.95' S=0.0100 T Cc=0.900 n=0.013 Corrugated PE,smooth interior #2 Secondary 162.90' 12.0" x 35.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 160.75' S=0.0614 T Cc=0.900 n= 0,013 Corrugated PE, smooth interior Primary OutFlow Max=0.63 cfs @ 12.02 hrs HW=163.30' TW=162,24' (Dynamic Tailwater) t---1=Culvert (Barrel Controls 0.63 cfs @ 3.21 fps) Secondary OutFlow Max=0.62 cfs @ 12.02 hrs HW=163.30' TW=161.01' (Dynamic Tailwater) L2=Culvert (Inlet Controls 0.62 cfs @ 2.14 fps) Summary for Pond 27P: Recharge Sytern Inflow Area= 0.249 ac, Inflow Depth = 3.98" for 10 yr event Inflow = 0.63 cfs @ 12.02 hrs, Volume= 0.083 of Outflow = 0.62 cfs @ 12.04 hrs, Volume= 0.083 af, Atten= 1%, Lag= 1.0 min Discarded = 0.03 cfs @ 8.62 hrs, Volume= 0.046 of Primary = 0.59 cfs @ 12.04 hrs, Volume= 0.036 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-48.00 hrs,dt=0.01 hrs!5 Peak Elev= 162.24'@ 12.04 hrs Surf.Area= 277 sf Storage=474 cf Plug-Flow detention time=(not calculated: outflow precedes inflow) Center-of-Mass det. time= 70.9 min (818.2- 747.3) Volume Invert Avail.Stora e Storage Description #1 0.00, 226 cf Custom Stage Data(Prismatic) Listed below(Recafc) 845 cf Overall-279 of Embedded = 565 cf x 40.0%Voids #2 159,95, 279 cf 47.8"W x 30.0"H x 6.251 Cultec R-330 x 6 Inside#1 506 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq ft} (cubic-feet) (cubic-feet) 159A5 277 0 0 162.50 277 845 845 Device Routing Invert Outlet Devices #1 Primary 161.78' 8.0" x 11.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 160.02' S=0.1600 T Cc=0.900 n=0,013 Corrugated PE, smooth interior #2 Discarded 0.00' 4,600 inlhr Exfiltration over Horizontal area I:IUSERSIENGR14984tcivil14984 Hydrocad! 4984 Brooks Science Center Post-Dev,-10yr-rev I Type !I! 24-hr 10 yr Rainfall=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 19 jydroCADO 8.01 s!n 001039 ©2007 H droCAD Software Solutions LLC 5/112007 Discarded OutFlow Max=0.03 cfs @ 8.62 hrs HW=159.48' (Free Discharge) t---2=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.59 cfs @ 12.04 hrs HW=162.24' TW=157.97' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 0.59 cfs @ 2.31 fps) Summary for Pond 28P: Proposed Drain Manhole Inflow Area = 0.404 ac, Inflow Depth = 3.18" for 10 yr event Inflow = 2.05 cfs @ 12.03 hrs, Volume= 0.107 of Outflow = 2.05 cfs @ 12.03 hrs, Volume= 0.107 af, Atten=0%, Lag=0.0 ruin Primary = 2.05 cfs @ 12.03 hrs, Volume= 0A07 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Bev= 161.01'@ 12.03 hrs Flood Elev= 164.70' Device Routing Invert Outlet Devices 41 Primary 160.21' 12.0" x 50.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 157.10' S=0.0622 T Cc= 0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=2.05 cfs @ 12.03 hrs HW=161.01' TW=158.90' (Dynamic Tailwater) t -1=Culvert (Inlet Controls 2.05 cfs @ 3.04 fps) Summary for Pond 29P: Proposed Drain Manhole Inflow Area = 0.654 ac, Inflow Depth = 2.64" for 10 yr event Inflow - 2.65 cfs @ 12.03 hrs, Volume= 0.144 of Outflow - 2.65 cfs @ 12.03 hrs, Volume= 0.144 af, Alien=0%, Lag=0.0 min Primary - 2.65 cfs @ 12.03 hrs, Volume= 0.144 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 157.99'@ 12.03 hrs Flood Elev= 161.80' Device Routing Invert Outlet Devices #1 Primary 157.00' 12.0" x 157.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 153.00' S=0.02557' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=2.64 cfs @ 12.03 hrs HW=157.98' TW=150.16' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 2.64 cfs @ 3.38 fps) Summary for Pond 30P: Detention Pond Inflow Area = 0.989 ac, Inflow Depth = 2.15" for 10 yr event Inflow = 2.97 cfs @ 12.03 hrs, Volume= 0.177 of Outflow - 0.45 cfs @ 12.53 hrs, Volume= 0.177 af, Atten= 85%, Lag= 29.9 min Primary - 0.45 cfs @ 12.53 hrs, Volume= 0.177 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs/5 Peak Elev= 150.75'@ 12.53 hrs Surf.Area=2,997 sf Storage=3,683 cf Plug-Flow detention time= 197.5 min calculated for 0.177 of(100%of inflow) Center-of-Mass det. time= 195.5 min ( 9923- 796.8 ) IAUSERSIENGRt49841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-1 Oyr-revl Type !!I 24-hr 10 yr Rarnfa!l=4.50" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 20 HydroCAD08.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Volume Invert Avail.Storage Storage Description #1 0.00' 8,036 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feel} (sq-ft) (cubic-feet) (cubic-feet) 149.25 1,940 0 0 150.00 2,450 1,646 1,646 151.00 3,181 2,816 4,462 152.00 3,968 3,575 8,036 Device Routing Invert Outlet Devices -� 41 Primary 149,25' 12.0" x 50.0' long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 148.75' S= 0.0100 T Cc= 0.900 n= 0.013 Corrugated PE, smooth interior 42 Device 1 149.25' 2.0"Vert.Orifice/Grate C=0.600 #3 Device 1 150.00' 4.0"Vert.Orifice/Grate C=0.600 114 Device 1 151.00' 4.0"Vert.OrificelGrate C=0.600 #5 Device 1 151.50' 2.00'x 2.00' Horiz.Orifice/Grate Limited to weir flow C=0.600 Primary OutFlow Max=0.45 cfs @ 12.53 hrs HW=150.75' TW=0.00' (Dynamic Tailwater) t--1=Culvert (Passes 0.45 cfs of 3.59 cfs potential flow) 2=Orifice#Grate (Orifice Controls 0.12 cfs @ 5.73 fps) 3=Orifice#Grate (Orifice Controls 0.32 cfs @ 3.67 fps) =Orifice#Grate (Controls 0.00 cfs) 5=Orifice#Grate (Controls 0.00 cfs) Summary for Pond 31 P: 6' "Downstream Defender" Inflow Area= 0.404 ac, Inflow Depth = 3.18" for 10 yr event Inflow = 2.05 cfs @ 12.03 hrs, Volume= 0.107 of Outflow = 2.05 cfs @ 12.03 hrs, Volume= 0.107 af, AEten=0%, Lag=0.0 min Primary = 2.05 cfs @ 12.03 hrs, Volume= 0.107 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peal: Elev= 158,90'@ 12.03 hrs Flood Elev= 163.00' Device Routing Invert Outlet Devices 41 Primary 158.10' 12.0" x 40.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 157.10' S=0.0250 T Cc= 0.900 n= 0.013 Corrugated PE,smooth interior Primary OutFlow Max=2.05 cfs @ 12.03 hrs HW=158.90' TW=157.98' (Dynamic Tailwater) L1=Culvert (Inlet Controls 2.05 cfs @ 3.04 fps) Summary for Pond LAKE: Lake Cochichewick Inflow Area= 3.830 ac, Inflow Depth= 1.85" for 10 yr event Inflow = 5.56 cfs @ 12.07 hrs, Volume= 0.590 of Primary = 5.56 cfs @ 12.07 hrs, Volume= 0.590 of, Atten=0%, Lag=0.0 min Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 I. I:IUSERSTNGR149841civ€114984 Hydrocadl 4984 Brooks Science Center Past-Dev.-25yr-rev1 Prepared by Rist-Frost-Shumway Engineering, P.C. Page 1 H droCAQ7 8.01 sln 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Area Listing (all nodes) Area CN Description (acres) (subcatchment-numbers) 0.557 58 Woadslgrass comb.,Good,HSG B (6S,7S,8S) 1,967 61 >75%6 Grass cover,Good,HSG B (1S,3S,4S,5S,6S,7S,9S,105,12S,16S) 1,306 98 Paved parking&roofs (IS,2S,3S,4S,5S,6S,7S,8S,9S,IOS,11S,12S,13S,16S,17S,19S,20S,21S,22S,23S) 3.830 TOTAL AREA lAUSlERS\ENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev1 Type 11124-hr 25 yr Rainfall-5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 2 H droCAD®8.01 sln 001039 O 2007 HydroCAD Software Solutions LLC 511I2007 Time span=0.00-48.00 hrs, dt=0.01 hrs,4801 points x 5 Runoff by SCS TR-20 method, UH=SCS Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Drainage Area 1 Runoff Area=34,042 sf Runoff Depth=2.69" Flow Length=292' Slope=0.0790'1' Tc=4.9 min CN=75 Runoff=2.57 cfs 0.175 of Subcatchment 2S: Drainage Area 2 Runoff Area=1,109 sf Runoff Depth=5.05" Flow Length=22' Slope=0.7500'r Tc=0.1 min CN=98 Runoff=0.16 cfs 0.011 of Subcatchment 3S: Drainage Area 3 Runoff Area=9,400 st Runoff Depth=1.86" Flow Length=147' Slope=0.0730'1' Tc=3.9 min CN=65 Runoff=0.49 cfs 0.033 of Subcatchment 4S: Drainage Area 4 Runoff Area=10,127 sf Runoff Depth=2.61" Flow Length=152' Slope=0.0800 T Tc=3.0 min CN=74 Runoff=0.79 cfs 0.050 of Subcatchment 5S: Drainage Area 5 Runoff Area=13,454 sf Runoff Depth=l_78" Flow Length=154' Slope=0.0800 7' Tc=3.9 min CN=64 Runoff=0.66 c€s 0.046 of Subcatchment 6S: Drainage Area 6 Runoff Area=14,627 sf Runoff Depth=1.70" Flow Length=224' Slope=0.0900 T Tc=5.1 min CN=63 Runoff=0.66 cfs 0.048 of Subcatchment 7S: Drainage Area 7 Runoff Area=24,118 sf Runoff Depth=1,70" Flow Length=351' Slope=0.0710'r Tc=8.3 ruin CN=63 Runoff=0.96 cfs 0.079 of Subcatchment 8S: Drainage Area 8 Runoff Area=18,654 sf Runoff Depth=1.78" Flow Length=378' Slope=0.0470'/' Tc=10.5 min CN=64 Runoff=0.73 cfs 0.063 of Subcatchment 9S: Drainage Area 9 Runoff Area=12,110 sf Runoff Depth=3.85" Flow Length=183' Slope=0.0670 V Tc=2.5 min CN=87 Runoff=1.39 cfs 0.089 of Subcatchment 10S: Drainage Area 10 Runoff Area=1,827 sf Runoff Depth=4.38° Flow Length=34' Slope=0.0740'r Tc=0.5 min CN=92 Runoff=0.25 cfs 0.015 of Subcatchment 11S: Drainage Area 11 Runoff Area=1,096 sf Runoff Depth=5.06" Flow Length=22' Stope=0.7500 T Tc=0.1 min CN=98 Runoff=0.16 cfs 0.011 of Subcatchment 12S: Drainage Area 12 Runoff Area=5,989 sf Runoff Depth=2.43" Flow Length=82' Slope=0.0550 T Tc=2.3 min CN=72 Runoff=0.45 cfs 0.028 of Subcatchment 13S: Drainage Area 13 Runoff Area=2,311 sf Runoff Depth=5.06" Flow Length=22' Slope=0.7500 Y Tc=0.1 min CN=98 Runoff=0.34 cfs 0.022 of Subcatchment 16S: Drainage Area 16 Runoff Area=2,722 sf Runoff Depth=2.78" Flow Length=64' Slope=0.0780? Tc=1.4 min CN=76 Runoff=0.24 cfs 0.015 of Subcatchment 17S: Drainage Area 17 Runoff Area=3,019 sf Runoff Depth=5.06" Flow Length=120' Tc=0.4 min CN=98 Runoff=0.43 cfs 0.029 of Subcatchment 19S: Drainage Area 19 Runoff Ares=1,011 sf Runoff Depth=5.06" Flow Length=23' Slope=0.7500 T Tc=0.1 min CN=98 Runoff=0.15 cfs 0.010 of Subcatchment 20S: Drainage Area 20 Runoff Area=1,331 sf Runoff Depth=5.06" Flow Length=23' Slope=0.7500 T Tc=0.1 min CN=98 Runoff=0.19 cfs 0,013 of Subcatchment 21S: Drainage Area 21 Runoff Area=1,213 sf Runoff Depth=5.06" Flow Length=24' Slope=0.7500 7 Tc=OA min CN=98 Runoff=0.18 cfs 0.012 of Subcatchment 22S: Drainage Area 22 Runoff Area=149 sf Runoff Depth=5.06" Flow Length=24' Slope=0.7500 7 Tc=0.1 min CN=98 Runoff=0.02 cfs 0.001 of Subcatchment 23S: Drainage Area 23 Runoff Area=8,525 sf Runoff Depth=5.06" Flow Length=355' Tc=1.8 min CN=98 Runoff=1.18 cfs 0,083 of I:IUSERSIENGR149841civA4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev9 Type Ill 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 3 H droCADO 8.01 sln 001039 O 2007 H droCAD Software Solutions Lt_C 5/1/2007 Pond 1 E: Existing CB Peak EIev=160.31' Inflow=2.57 cfs 0.175 of 12.0"x 188.0'Culvert Outflow=2.57 cfs 0.175 of Pond 1P: Cistern Peak EIev=169.97' Inflow=0.16 cfs 0.011 of 8.0"x 12.0'Culvert Outflow=0.16 cfs 0.011 at Pond 2E: Existing CB Peak EIev=158.81' Inflow=1.23 cfs 0.084 at Primary=1.23 cfs 0.084 of Secondary=0.00 cfs 0.000 of Outflow=1.23 cfs 0.084 at Pond 2P: Proposed In-line drain Peak EIev=170.45' Inflow=0.16 cfs 0.011 of 6.0"x 18.0'Culvert Outflow=0.16 cfs 0.011 of Pond 3E: Existing CB Peak EIev=159.50' Storage=23 cf Inflow=0.79 cfs 0.050 of Outflow=0.75 cfs 0.050 of Pond 4E: Reconstructed CB Peak Elev=156.55' Inflow=0.73 cfs 0.063 of Primary=0.73 cfs 0.063 of Secondary=0.00 cfs 0.000 at Outflow=0.73 cfs 0.063 of Pond 5E: Existing CB Peak Elev=167.78' Inflow=1.61 cfs 0,105 of 12.0"x 28.0'Culvert Outflow=1_61 cfs 0.105 of Pond 6E: Existing DMH Peak EIev=165.14' Inflow=1.61 cfs 0.105 of 12.0"x 240.0'Culvert Outflow=1.61 cfs 0.105 of Pond 7E: Existing DMH Peak EIev=155.75' Inflow=1.99 cts 0.168 at 10.0"x 257.0'Culvert Outflow=1.99 cfs 0.168 at Pond 10P: Proposed CB Peak Elev=168.35' lnflow=0.25 cfs 0.015 of 12.0"x 29.0'Culvert Outflow=0.25 cfs 0.015 at Pond 11P: Proposed In-line drain Peak EIev=170.61' Inflow=0.16 cfs 0.011 at 6.0"x 35.0'Culvert Ouiflow=0.16 cfs 0.011 of Pond 12P: Upper Wet/Dry Garden Peak EIev=169.64' Storage=121 cf Inflow=1.30 cfs 0.090 of Outflow=1.29 cfs 0.088 of Pond 13P: PROPOSED YARD DRAIN Peak Elev=170.76' Inflow=0.34 cis 0.022 of 8.0"x 42,0'Culvert Outflow=0.34 cfs 0.022 of Pond 16P: Lower Wet/Dry Garden Peak EIev=168.72' Storage=212 cf Inflow=1.86 cfs 0.127 of Outflow=1.78 cfs 0.125 at Pond 19P: Proposed In-line drain Peak EIev=169.26' Inflow=0.15 cfs 0.010 of 6.0"x 75.0'Culvert Outflow=0A5 cfs 0.010 at Pond 20P: Proposed In-line Drain Peak EIev=168.64' Inflow=0.34 cfs 0,023 at 6.0"x 112.0'Culvert Outflow=0.34 cfs 0.023 at Pond 21P: Proposed In-line Drain Peak Elev=168.81' Inflow=0.18 cfs 0.012 of 6.0"x 50.0'Culvert Outflow=0.18 cfs 0.012 of Pond 22P: Proposed In-line Drain Peak Elev=168.75' Inflow=0.20 cfs 0.013 of 6.0"x 7.0'Culvert Outflow=0.21 cfs 0.013 of Pond 24P: Proposed Yard Drain Peak EIev=162.73' Inflow=1.78 cts 0.125 of 12.0"x 42.0'Culvert Outflow=1.78 cfs 0.125 of Pond 26P: Proposed Brain Manhole Peak EIev=163.36' Inflow=1.48 cfs 0.105 of Primary=0.65 cfs 0.096 of Secondary=0.82 cfs 0,009 of Outflow=1.48 cfs 0.105 at Pond 27P: Recharge Sytem Peak EIev=162.25' Storage=476 cf Inflow=0.65 cfs 0.096 of Discarded=0.03 cfs 0.050 at Primary=0.62 cfs 0.047 of Outflow=0.65 cfs 0.096 of I:IUSERS1ENGR149841eivi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-revl Type UI 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shutnway Engineering, P.C. Page 4 H droCAD®8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Pond 28P: Proposed Drain Manhole Peak Elev=161.17' Inflow=2.59 cfs 0.134 of 12.0"x 50.0'Culvert Outflow=2.59 cfs 0.134 of Pond 29P: Proposed Drain Manhole Peak Elev=158.22' Inflow=3.21 cfs 0.181 of 12.0"x 157.0'Culvert Outflow=3.21 cfs 0.181 of Pond 30P- Detention Pond Peak Elev=151.09' Storage=4,759 cf Inflow=3.71 cfs 0.228 of Outflow=0.56 cfs 0.228 of Pond 31P: 6`"Downstream Defender" Peak Elev=159.06' Inflow=2.59 cfs 0.134 of 12.0"x 40.0'Culvert Outflow=2.59 cfs 0.134 of Pond LAKE: Lake Cochichewick Inflow=7.54 cfs 0.779 of Primary=7.54 cfs 0.779 of Total Runoff Area=3.830 ac Runoff Volume=0.833 of Average Runoff Depth=2.61" 65.91%Pervious Area=2.524 ac 34.09%Impervious Area=1.306 ac I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-revl Type U/ 24--hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 5 H droCADO 8.01 sin 001039 ©2007 H droCAO Software Solutions LLC 5/1/2007 Summary for Subcatchment 1S: Drainage Area 1 Runoff = 2.57 cfs @ 12.07 hrs, Volume= 0.175 af, Depth= 2.69" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area sf GN Description 12,847 98 Paved parking &roofs 21,195 61 >75% Grass cover, Good, HSG B 34,042 75 Weighted Average 21,195 Pervious Area 12,847 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ftlft) (ftlsec) (cfs) 4.9 292 0.0790 0.99 Lag/CN Method, Summary for Subcatchment 2S: Drainage Area 2 Runoff - 0.16 cfs @ 12.00 hrs, Volume= 0.011 of, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs,dt= 0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area(sf) CN Description 1,109 98 Paved parking &roofs 1,109 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ftlft) (ftlsec) (cfs) 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n=0,011 P2= 3.10" Summary for Subcatchment 3S: Drainage Area 3 Runoff - 0.49 cfs @ 12.06 hrs, Volume= 0.033 of, Depth= 1.86" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Type Ili 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 1,022 98 Paved parking&roofs 8,378 61 >75%Grass cover, Good, HSG B 9,400 65 Weighted Average 8,378 Pervious Area 1,022 Impervious Area Tc Length Slope Velocity Capacity Description min feet ftlft ftlsec cfs 3.9 147 0.0730 0.63 Lag/CN Method, Summary for Subcatchment 4S: Drainage Area 4 Runoff = 0.79 cfs @ 12.05 hrs, Volume= 0.050 af, Depth= 2.61" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" I:IUSERSIENGR149841civilt4984 Hydrocadl 4984 Brooks Science Center Past-Dev.-25yr-rev1 Type IN 24 hr 25 yr Rainfal1=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 6 HydroCADO 8.01 sln 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Area (sf) CN Description 3,682 98 Paved parking& roots 6,445 61 >75% Grass cover, Good, HSG B 10,127 74 Weighted Average 6,445 Pervious Area 3,682 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 152 0.0800 0,85 Lag/CN Method, Summary for Subcatchment 5S: Drainage Area 5 Runoff = 0.66 cfs @ 12.06 hrs, Volume= 0.046 af, Depth= 1,78" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48,00 hrs,dt= 0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area sf CN Descri lion 1,179 98 Paved parking& roofs 12,275 61 >75%Grass cover, Goad, HSG B 13,454 64 Weighted Average 12,275 Pervious Area 1,179 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ftj (fllsec) (cfs) 3.9 154 0,0800 0.65 Lag/CN Method, Summary for Subcatchment 6S: Drainage Area 6 Runoff - 0.66 cfs @ 12.08 hrs, Volume= 0.048 af, Depth= 1.70" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt= 0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area f s( CN Description 1,065 98 Paved parking& roofs 10,175 61 >75%Grass cover,Good, HSG B 3,387 58 Woods/grass comb., Good, HSG..B. 14,627 63 Weighted Average 13,562 Pervious Area 1,065 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) fYft) (fYsec) (cfs) 5.1 224 0.0900 0.73 LagICN Method, Summary for Subcatchment 7S: Drainage Area 7 Runoff = 0.96 cfs @ 12.13 hrs, Volume= 0.079 af, Depth= 1.70" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" I:IUSPRSIENGR149841civiIA984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev4 Type l!!24-hr 25 yr Rainfal1-5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 7 H droCAD®8.01 sln 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Area sf CN Description 1,472 98 Paved parking & roofs 17,436 61 >75% Grass cover, Good, HSG B 5,210 58 Woodsl rass comb.,Good, HSG B 24,118 63 Weighted Average 22,646 Pervious Area 1,472 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft ft/sec cfs 8.3 351 0.0710 0.71 Lag/CN Method, Summary for Subcatchment 8S: Drainage Area 8 Runoff = 0.73 cfs @ 12.16 hrs, Volume= 0.063 af, Depth= 1.78" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0,00-48.00 hrs, dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area sf CN Description 2,996 98 Paved parking&roofs 15,658 58 Woodsl rass comb., Good HSG B 18,654 64 Weighted Average 15,658 Pervious Area 2,996 Impervious Area Te Length Slope Velocity Capacity Description min feet ftlft fUsec cfs 10.5 378 0.0470 0.60 Lag/CN Method, Summary for Subcatchment 9S: Drainage Area 9 Runoff = 1.39 cfs @ 12.04 hrs, Volume= 0.089 af, Depth= 3.85" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-48.00 hrs,dt=0,01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 8,367 98 Paved parking&roofs 3,743 61 >75% Grass cover, Good HSG B 12,110 87 Weighted Average 3,743 Pervious Area 8,367 Impervious Area Te Length Slope Velocity Capacity Description (min) (feet) (ftlft) (ftlsec) (cfs) 2.5 183 0.0670 123 Lag/CN Method, Summary for Subcatchment 10S: Drainage Area 10 Runoff - 0.25 cfs @ 12.01 hrs, Volume= 0.015 af, Depth= 4.38" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-48.00 hrs,dt=0,01 hrs Type III 24-hr 25 yr Rainfall=5.30" I:WSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-revl Type 111 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 8 HydrnCADO 8.01 sin 001039 ©2007 HydroCAD Software Solutions LLC 5I112007 Area sf CN Description 1,549 98 Paved parking & roofs 278 61 >75% Grass cover, Good HSG B 1,827 92 Weighted Average 278 Pervious Area 1,549 Impervious Area Tc Length Slope Velocity Capacity Description Amin #eel ftlft ftlsec efs 0.5 34 0,0740 1.13 Lag/CN Method, Summary for Subcatchment 11S: Drainage Area 11 Runoff = 0.16 cfs @ 12.00 hrs, Volume= 0.011 af, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type II! 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 1,096 98 Paved parking &roofs 1,096 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet} (fUft) (fUsec) {cfs} 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 125: Drainage Area 12 Runoff - 0.45 cfs @ 12.04 hrs, Volume= 0.028 of, Depth= 2.43" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area sf CN Description 1,845 98 Paved parking & roofs 4,144 61 >75% Grass cover, Good HSG B 5,989 72 Weighted Average 4,144 Pervious Area 1,845 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ftlsec cfs 2.3 82 0,0550 0.59 Lag/CN Method, Summary for Subcatchment 13S. Drainage Area 13 Runoff - 0.34 cfs @ 12.00 hrs, Volume= 0.022 of, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area sf CN Description 2,311 98 Paved parking & roofs 2,311 Impervious Area I:IUSERSIENGR149841civilt4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-revl Type !!!29 hr 25 yr Ralnfa!l=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 9 Hy LC _ 5/1/2007 Tc Length Slope Velocity Capacity Description min feet ft/ft fVsec) (cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 16S: Drainage Area 16 Runoff = 0.24 cfs @ 12.02 hrs, Volume= 0.015 af, Depth= 2,78" Runoff by SCS TR-20 method, UH=SCS, Time Span=0,00-48.00 hrs, dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area (sfj CN Description 1,088 98 Paved parking & roofs 1,634 61 >75% Grass cover,Good HSG B 2,722 76 Weighted Average 1,634 Pervious Area 1,088 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ff/ft) (ftlsec) (cfs) 1.4 64 0-0780 0.75 Lag/CN Method, Summary for Subcatchment 17S: Drainage Area 17 Runoff = 0.43 cfs @ 12.01 hrs, Volume= 0.029 af, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 3,019 98 Paved parking & roofs 3,019 Impervious Area Tc Length Slope Velocity Capacity Description (ruin) (feet) (ft/ft) (ft/sec) (cfs) 0.1 30 0.7500 4.54 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" 0.2 50 0,0200 4.90 1.71 Circular Channel(pipe),Roof Drain Diam= 8.0" Area=0.3 sf Perim=2.1' r=0.17' n= 0.013 0.1 40 0.0250 7.17 5,63 Circular Channel (pipe),Roof Drain Diam= 12.0" Area=0.8 sf Perim= 3.1' r=0.25' n=0.013 0.4 120 Total Summary for Subcatchment 19S: Drainage Area 19 Runoff - 0,15 cfs @ 12.00 hrs, Volume= 0.010 af, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS, Time Span=0,00-48.00 hrs, dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 1,011 98 Paved parking &roofs 1,011 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 0.1 23 0.7500 4,30 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" I:IUSERSIENGR149841civiI14984 Hydrocad! 4984 Brooks Science Center Past-Dev.-25yr-rev1 Type !!!24 hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 10 HydroCAD@&01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 20S: Drainage Area 20 Runoff = 0.19 cfs @ 12.00 hrs, Volume= 0.013 af, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00.48.00 hrs, dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 1 331 98 Paved parking &roofs 1,331 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (fusee) (cfs) 0.1 23 0.7500 4.30 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 21S: Drainage Area 21 Runoff = 0.18 cfs @ 12.00 hrs, Volume= 0.012 af, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 1,213 98 Paved parking & roofs 1,213 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUf# ft/sec cfs 0.1 24 0.7500 4.34 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" Summary for Subcatchment 22S: Drainage Area 22 Runoff = 0.02 cfs @ 12.00 hrs, Volume= 0.001 af, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0,01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area sf CN Description 149 98 Paved parking &roofs 149 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.1 24 0.7500 4.34 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 23S: Drainage Area 23 Runoff = 1.18 cfs @ 12.03 hrs, Volume= 0.083 af, Depth= 5.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 25 yr Rainfall=5.30" Area (sf) CN Description 8,525 98 Paved parking &roofs 8,525 Impervious Area I:\USERSIENGR149841civ1114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev1 Type ill 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 11 # cfroCAD®8.01 s!n DD1639 OO 2047 HydroCAD Software Solutions LLC 5/1/2007 Te Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.7 50 0.0200 1.18 Sheet flow,Across Flat Roof Smooth surfaces n= 0.011 P2= 3.10" 0.8 225 0.0200 4.90 1.71 Circular Channel(pipe), Roof Drain in building Diam=8.0" Area=0.3 sf Perim=2.1' r- 0.17' n= 0.013 Cast iron, coated 0.3 80 0.0100 4.54 3.56 Circular Channel(pipe), Roof drain outside building Diam= 12.0" Area=0.8 sf Perim=3.1' r= 0.25' n= 0.013 Corrugated PE,smooth interior 1.8 355 Total Summary for Pond 1 E: Existing CB Inflow Area = 0.781 ac, Inflow Depth = 2.69" for 25 yr event Inflow - 2.57 cfs @ 12.07 hrs, Volume= 0.175 of Outflow - 2.57 cfs @ 12.07 hrs, Volume= 0.175 af, Atten=0%, Lag=0.0 min Primary - 2.57 cfs @ 12.07 hrs, Volume= 0.175 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 160.31'@ 12.07 hrs Flood Elev= 162.90' Device Routing Invert Outlet Devices _ #1 Primary 159.36' 12.0" x 188.0'long Culvert RCP, square edge headwall, Ke= 0.500 Outlet Invert= 150,21' S=0.0487 T Cc= 0.900 n=0.012 Concrete pipe,finished Primary OutFlow Max=2.56 cfs @ 12.07 hrs HW=160.31' TW=0.00' (Dynamic Tailwater) t---1=Culvert (Inlet Controls 2.56 cfs @ 3.32 fps) Summary for Pond 1 P. Cistern Inflow Area= 0.025 ac, Inflow Depth = 5,06" for 25 yr event Inflow = 0.16 cfs @ 12.00 hrs, Volume= 0.011 of Outflow = 0.16 cfs @ 12.00 hrs, Volume= 0.011 af, Atten= 0%, Lag= 0.0 min Primary = 0.16 cfs @ 12,00 hrs, Volume= 0.011 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 169.97'@ 12.00 hrs Device Routing Invert Outlet Devices ##1 Primary 169.75' 8.0" x 12.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 169.00' S=0.0625 Y Cc=0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.16 cfs @ 12.00 hrs HW=169.97' TW=168.68' (Dynamic Tallwater) t-1=Culvert (Inlet Controls 0.16 cfs @ 1.60 fps) Summary for Pond 2E: Existing CB Inflow Area= 0.448 ac, Inflow Depth = 2.24" for 25 yr event Inflow = 1.23 cfs @ 12.07 hrs, Volume= 0.084 of Outflow = 1.23 cfs @ 12,07 hrs, Volume= 0.084 af, Atten= 0%, Lag= 0.0 min Primary - 1.23 cfs @ 12.07 hrs, Volume= 0.084 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0,000 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 158.81'@ 12.07 hrs Flood Elev= 160.60' I:IUSFRSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Past-Dev.-25yr-reel Type Ill 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 12 HydroCAD®8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Device Routing. Invert Outlet Devices #1 Primary 156.86' 6.0" x 200.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 150.04' S=0.0341 'P Cc=0.900 n= 0.010 PVC, smooth interior #2 Secondary 160.40' 2.00'x 2,00' Horiz.Orifice/Grate limited to weir flow C= 0.600 Primary OutFlow Max=1.23 cfs @ 12.07 hrs HW=158.81' TW=0.00' (Dynamic Tailwater) t---1=Culvert (Inlet Controls 1.23 cfs @ 6.27 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=156.86' TW=0.00' (Dynamic Tailwater) t---2=OrificelGrate ( Controls 0.00 cfs) Summary for Pond 2P. Proposed In-line drain Inflow Area= 0.025 ac, Inflow Depth = 5.06" for 25 yr event Inflow = 0.16 cfs @ 12.00 hrs, Volume= 0.011 of Outflow = 0.16 cfs @ 12.00 hrs, Volume= 0.011 af, Atten=0%, Lag=0.0 min Primary = 0.16 cfs @ 12.00 hrs, Volume= 0.011 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 170.45'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 170,18' 6.0" x 18.0' long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 170.00' S= 0.0100'1' Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.16 cfs @ 12.00 hrs HW=170.44' TW=169.97' (Dynamic Tailwater) t--1=Culvert (Barrel Controls 0.16 cfs @ 2.20 fps) Summary for Pond 3E. Existing CB Inflow Area = 0.232 ac, Inflow Depth= 2.61" for 25 yr event Inflow = 0.79 cfs @ 12.05 hrs, Volume= 0.050 of Outflow = 0.75 cfs @ 12.07 hrs, Volume= 0.050 af, Atten=6%, Lag= 1.1 min Primary - 0.75 cfs @ 12.07 hrs, Volume= 0.050 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 159.50'@ 12.07 hrs Surf.Area= 13 sf Storage= 23 cf Flood Elev= 160.00' Surf.Area= 330 sf Storage=51 cf Plug-Flow detention time=0.6 min calculated for 0.050 of(100%of inflow) Center-of-Mass det. time=0.6 min ( 832.4-831.8 ) Volume Invert Avail.Stora e Storage Description #1 0.00, 51 cf Custom Stage Data(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store feet s -ft cubic-feet cubic-feel 157.76 13 0 0 159.86 13 27 27 160.00 330 24 51 Device Routing Invert Outlet Devices #1 Primary 157.76' 6.0" x 34.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 157.23' S=0.0156? Cc=0.900 n=0.010 PVC, smooth interior #2 Primary 159,86' 2.00'x 2.00'Horiz.OrificelGrate Limited to weir flow C=0.600 Primary OutFlow Max=0.74 cfs @ 12.07 hrs HW=159,48' TW=158.81' (Dynamic Tailwater) L1=Culvert (Outlet Controls 0.74 cfs @ 3.75 fps) 2=Orifice/Grate ( Controls 0.00 cfs) I:1l1SERSIENGR149841civM4984 Hydrocadl 4984 Brooks Science Center Post-Dev.w25yr-revl Type 11124-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 13 H droCADC�)8.01 sin 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 4E: Reconstructed CB Inflow Area = 0.428 ac, Inflow Depth = 1.78" for 25 yr event Inflow = 0.73 cfs @ 12.16 hrs, Volume= 0.063 of Outflow = 0.73 cfs @ 12.16 hrs, Volume= 0.063 af, Atlen=0%, Lag= 0.0 ruin Primary = 0.73 cfs @ 12.16 hrs, Volume= 0.063 of Secondary= 0.00 cfs.@ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Star-Ind method, Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 156.55' @ 12.16 hrs Flood Elev= 160,00' Device Routing Invert Outlet Devices 41 Primary 156.00' 8,0" x 35.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 155.65' S=0.0100'#' Cc=0.900 n=0.013 Clay tile #2 Secondary 159.80' 2.00'x 2.00' Horiz.Orifice/Grate Limited to weir flow C=0.600 Primary OutFlow Max=0.73 cfs @ 12.16 hrs HW=156.55' TW=155.48' (Dynamic Tailwater) t1=Culvert (Barrel Controls 0.73 cfs @ 3.18 fps) Secondary Outflow Max=0.00 cfs @ 0.00 hrs HW=156.00' TW=0.00' (Dynamic Tailwater) t---2=OrifIce#Grate ( Controls 0.00 cfs) Summary for Pond 5E: Existing CB Inflow Area = 0.320 ac, Inflow Depth = 3.92" for 25 yr event Inflow = 1.61 cfs @ 12.03 hrs, Volume= 0.105 of Outflow = 1.61 cfs @ 12.03 hrs, Volume= 0.105 af, Atten=0%, Lag= 0.0 min Primary = 1.61 cfs @ 12.03 hrs, Volume= 0.105 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 167.78'@ 12.03 hrs Flood Elev= 171.83' Device Routing Invert Outlet Devices ##1 Primary 167,10' 12.0" x 28.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 164.50' S=0.0929 7' Cc=0.900 n=0.010 PVC, smooth interior Primary OutFlow Max=1.60 cfs @ 12.03 hrs HW=167.78' TW=165.14' (Dynamic Tailwater) t-1=Culvert (inlet Controls 1.60 cfs @ 2.81 fps) Summary for Pond 6E: Existing DMH Inflow Area = 0.320 ac, Inflow Depth = 3.92" for 25 yr event Inflow = 1.61 cfs @ 12.03 hrs, Volume= 0.105 of Outflow = 1.61 cfs @ 12.03 hrs, Volume= 0.105 af, Atten=0%, Lag= 0.0 min Primary = 1.61 cfs @ 12.03 hrs, Volume= 0.105 of Routing by Dyn-Stor-Ind method,Time Span=0,00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 165.14'@ 12.03 hrs Flood Elev= 170.73' Device Routing Invert Outlet Devices ##1 Primary 164.46' 12.0" x 240,0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 154.69' S=0.0407 T Cc=0.900 n=0.010 PVC,smooth interior Primary OutFlow Max=1.60 cfs @ 12.03 hrs HW=165.14' TW=155.74' (Dynamic Tailwater) L1=Culvert (Inlet Controls 1.60 cfs @ 2.81 fps) I:IUSERSIENGRt49841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-revl Type 11124-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Pogo 14 H droCADO 8.01 sin 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 7E: Existing DMH Inflow Area = 0,748 ac, Inflow Depth= 2.69" for 25 yr event Inflow - 1.99 cfs @ 12.04 hrs, Volume= 0.168 of Outflow = 1.99 cfs @ 12.04 hrs, Volume= 0.168 af, Atten=0%, Lag= 0.0 min Primary = 1.99 cfs @ 12.04 hrs, Volume= 0.168 of Routing by Dyn-Stor-Ind method, Time Span=0 00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 155.75'@ 12.04 hrs Flood Elev= 158.85' Device Routing Invert Outlet Devices #1 Primary 154.76' 10.0" x 257.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 143.30' S=0.0446 Y Cc=0.900 n= 0.013 Clay tile Primary Outflow Max=1.99 cfs @ 12,04 hrs HW=155.75' TW=0.00' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 1.99 cfs @ 3.65 fps) Summary for Pond 1OP: Proposed CB Inflow Area = 0.042 ac, Inflow Depth = 4.38" for 25 yr event Inflow = 0.25 cfs @ 12.01 hrs, Volume= 0.015 of Outflow = 0.25 cfs @ 12.01 hrs, Volume= 0.015 af, Atten=0%, Lag= 0.0 min Primary = 0.25 cis @ 12.01 hrs, Volume= 0.015 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 168.35'@ 12.01 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 168,10' 12.0" x 29.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 167.81' S= 0.0100 T Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.25 efs @ 12.01 hrs HW=168.35' TW=167.75' (Dynamic Tailwater) t-1=Culvert (Barrel Controls 0.25 cfs @ 2.37 fps) Summary for Pond 11 P: Proposed In-line drain Inflow Area= 0.025 ac, Inflow Depth = 5.06" for 25 yr event Inflow - 0.16 cfs @ 12.00 hrs, Volume= 0.011 of Outflow = 0.16 cfs @ 12.00 hrs, Volume= 0.011 af, Atten=0°%, Lag=0.0 min Primary = 0.16 cfs @ 12.00 hrs, Volume= 0.011 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 170.61'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 170,36' 6.0" x 35.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 170.00' S=0.0100'1' Cc= 0.900 n=0.013 Corrugated PE, smooth interior Primary Outflow Max=0.16 cfs @ 12.00 hrs HW=170,60' TW=169.63' (Dynamic Tailwater) t--1=Culvert (Barrel Controls 0.16 cfs @ 2.29 fps) I:IUSERSIENGRl49841civiI14984 Hydrocadl 4984 Brooks Science Center Post Type 111 24-hr 25 yr Rairlfail=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 15 HvdroCAD®8.01 sln 001039 ©2007 t# droCAD Software Solutions LLC 5/1/2007 Summary for Pond 12P: Upper Wet/Dry Garden Inflow Area = 0.285 ac, Inflow Depth = 3.79" for 25 yr event Inflow = 1.30 cfs @ 12.01 hrs, Volume= 0.090 of Outflow = 1.29 cfs @ 12.02 hrs, Volume= 0.088 af, Atten= 1%, Lag=0.5 min Primary = 1.29 cfs @ 12.02 hrs, Volume= 0.088 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 169.64'@ 12.02 hrs Surf.Area= 148 sf Storage= 121 of Flood Elev= 170.50' Surf.Area=343 sf Storage= 315 cf Plug-Flow detention time=24.8 min calculated for 0.088 of(98% of inflow) Center-of-Mass det,time= 12.4 min ( 783.4-770.9 ) Volume invert Avail.Stora e Storage Description #1 0.00, 315 cf Custom Stage Data(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc-Store Cum.Store feet s -ft cubic-feet cubic-feet 168.00 22 0 0 169.00 76 49 49 170.00 189 133 182 170.50 343 133 315 Device Routing invert Outlet Devices #1 Primary 169.30' 2.0'long x 1.00'rise Sharp-Crested Rectangular Weir 2 End Contraclion(s) 1.5'Crest Height Primary OutFlow Max=1.28 cfs @ 12.02 hrs HW=169.64' TW=168.71' (Dynamic Tailwater) t-•-9=Sharp-Crested Rectangular Weir (Weir Controls 1.28 cfs @ 1.96 fps) Summary for Pond 13P: PROPOSED YARD DRAIN Inflow Area = 0.053 ac, Inflow Depth = 5.06" for 25 yr event Inflow - 0.34 cfs @ 12.00 hrs, Volume= 0.022 of Outflow - 0.34 cfs @ 12.00 hrs, Volume= 0.022 af, Atten= 0%, Lag= 0.0 min Primary - 0,34 cfs @ 12.00 hrs, Volume= 0.022 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48A0 hrs,dt=0.01 hrs 1 5 Peak Elev= 170,76'@ 12.00 hrs Flood Elev= 176.00' Device Routing Invert Outlet Devices 91 Primary 170.42' 8.0" x 42.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 170.00' S=0.0100 7 Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.33 cfs @ 12.00 hrs HW=170.76' TW=169.63' (Dynamic Tailwater) t--1=Culvert (Barrel Controls 0.33 cfs @ 2.72 fps) Summary for Pond 16P: Lower Wet/Dry Garden Inflow Area = 0.404 ac, Inflow Depth = 3.76" for 25 yr event Inflow = 1.86 cfs @ 12.02 hrs, Volume= 0.127 of Outflow - 1.78 cfs @ 12.03 hrs, Volume= 0.125 af, Atton=4%, Lag= 1.0 min Primary = 1.78 cfs @ 12.03 hrs, Volume= 0,125 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 168.72'@ 12,03 hrs Surf.Area=417 sf Storage=212 cf Flood Elev= 169.00' Surf.Area=512 sf Storage= 343 cf I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev3 Type III 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 16 H droCADO 8.01 sln 001039 ©20(37 H droCAD Software Solutions t LG 5/1/2007 Plug-Flow detention time= 16.7 min calculated for 0.125 of(99% of inflow) Center-of-Mass det. time=8.9 min( 789.3-780.3 } Volume Invert Avall.Stora e Storage Description #1 0.00, 640 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store feet s -ft cubic-feet cubic-feet 168.00 174 0 0 169.00 512 343 343 169.50 674 297 640 Device Routing Invert Outlet Devices #1 Primary 168.30' 2.0'long x 1.00'rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0'Crest Height Primary Outflow Max=1.78 cfs @ 12.03 hrs HW=168.72' TW=162.73' (Dynamic Tailwater) t--1=Sharp-Crested Rectangular Weir (Weir Controls 1.78 cfs @ 2.22 fps) Summary for Pond 19P: Proposed In-line drain Inflow Area = 0.023 ac, Inflow Depth = 5.06" for 25 yr event Inflow = 0.15 cfs @ 12.00 hrs, Volume= 0.010 of Outflow = 0.15 cfs @ 12.00 hrs, Volume= 0.010 af, Atten=0%, Lag= 0.0 min Primary = 0.15 cfs @ 12.00 hrs, Volume= 0.010 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 169.26'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 169.00' 6.0" x 75.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 168.25' S=0.0100 T Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary Outflow Max=0.15 cfs @ 12.00 hrs HW=169.26' TW=168.63' (Dynamic Tailwater) L1=Culvert (Outlet Controls 0.15 cfs @ 2.10 fps) Summary for Pond 20P: Proposed In-line Drain Inflow Area = 0.054 ac, Inflow Depth= 5.06" for 25 yr event Inflow = 0.34 cfs @ 12.00 hrs, Volume= 0.023 of Outflow = 0.34 cfs @ 12.00 hrs, Volume= 0.023 af, Atten=0%, Lag=0.0 min Primary = 0.34 cfs @ 12.00 hrs, Volume= 0.023 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0A1 hrs 15 Peak Elev= 168.64'@ 12.00 hrs Flood Elev= 172.00' Crevice Routing Invert Outlet Devices #1 Primary 168.25' 6.0" x 112.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 167.13' S=0.0100'/' Cc=0.900 n= 0.013 Corrugated PE, smooth interior Primary Outflow Max=0.34 cfs @ 12.00 hrs HW=168.63' TW=163.34' (Dynamic Tailwater) t--1=Culvert (Barrel Controls 0.34 cfs @ 2.88 fps) [:\USE MEN GR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev1 Type I11 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 17 H droCAD'J 8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 21 P: Proposed In-line Drain Inflow Area = 0.028 ac, Inflow Depth = 5.06" for 25 yr event Inflow 0.18 cfs @ 12.00 hrs, Volume= 0.012 of Outflow 0.18 cfs @ 12.00 hrs, Volume= 0.012 A Atten= 0%, Lag= 0.0 min Primary = 0.18 cfs @ 12.00 hrs, Volume= 0.012 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 168.81'@ 12.02 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 167,86' 6.0" x 50.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 167.36' S=0.01007' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.18 cfs @ 12.00 hrs HW=168.80' TW=168.73' (Dynamic Tailwater) t-1=Culvert (Outlet Controls 0.18 cfs @ 0.90 fps) Summary for Pond 22P: Proposed In-line Drain Inflow Area = 0.031 ac, Inflow Depth = 5.06" for 25 yr event Inflow = 0.20 cfs @ 12.00 hrs, Volume= 0.013 of Outflow = 0.21 cfs @ 12.00 hrs, Volume= 0.013 af, Atten=0%, Lag= 0.0 min Primary - 0.21 cfs @ 12.00 hrs, Volume= 0.013 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 firs, dt=0.01 hrs 15 Peak Etev= 168.75'@ 12.02 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices ##1 Primary 167.66' 6.0" x 7.0'long Culvert CPP,square edge headwall, Ko= 0.500 Outlet Invert= 167.59' S=0.0100 7' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.21 cfs @ 12.00 hrs HW=168.73' TW=168.68' (Dynamic Tailwater) L1=Culvert (Inlet Controls 0.21 cfs @ 1,05 fps) Summary for Pond 24P: Proposed Yard Drain Inflow Area = 0.404 ac, Inflow Depth= 3,72" for 25 yr event Inflow - 1.78 cfs @ 12.03 hrs, Volume= 0.125 of Outflow - 1.78 cfs @ 12.03 hrs, Volume= 0.125 af, Men=0%, Lag= 0.0 min Primary - 1.78 cfs @ 12.03 hrs, Volume= 0.125 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 162.73'@ 12.03 hrs Flood Elev= 166.75' Device Routing Invert Outlet Devices 01 Primary 162.00' 12.0" x 42.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 160.49' S= 0.0360 7' Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=1.78 cfs @ 12.03 hrs HW=162.73' TW=161.16' (Dynamic Tailwater) '-1=Culvert (Inlet Controls 1.78 cfs @ 2.90 fps) I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev1 Type 11124-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C, Page 18 HHdroCAt]®8.01 s/n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 26P: Proposed Drain Manhole Inflow Area = 0.249 ac, Inflow Depth = 5.06" for 25 yr event Inflow = 1.48 cfs @ 12.02 hrs, Volume= 0.105 of Outflow = 1.48 cfs @ 12.02 hrs, Volume= 0.105 af, Atten= 0%, Lag= 0.0 ruin Primary = 0.65 cfs @ 12.02 hrs, Volume= 0.096 of Secondary= 0.82 cfs @ 12.02 hrs, Volume= 0.009 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 163.36' @ 12.02 hrs Flood Elev= 169.00' Device Routing Invert Outlet Devices #1 Primary 162,43' 6.0" x 48.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 161.95' S= 0.0100 T Cc= 0,900 n=0.013 Corrugated PE,smooth interior 92 Secondary 162.90' 12.0" x 35.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 160.75' S=0.0614 T Cc= 0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.65 cfs @ 12.02 hrs HW=163.36' TW=162.25' (Dynamic Tailwater) t-1=Culvert (Barrel Controls 0.65 cfs @ 3.33 fps) Secondary OutFlow Max=0.82 cfs @ 12.02 hrs HW=163.36' TW=161,17' (Dynamic Tailwater) t-2=Culvert (inlet Controls 0.82 cfs @ 2.31 fps) Summary for Pond 27P: Recharge Sytem Inflow Area = 0.249 ac, Inflow Depth = 4.63" for 25 yr event Inflow - 0.65 cfs @ 12.02 hrs, Volume= 0.096 of Outflow = 0.65 cfs @ 12.04 hrs, Volume= 0.096 af, Atten= 1%, Lag= 1.0 min Discarded = 0.03 cfs @ 8.14 hrs, Volume= 0.050 of Primary = 0.62 cfs @ 12.04 hrs, Volume= 0.047 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 162.25'@ 12.04 hrs Surf.Area= 277 sf Storage=476 cf Plug-Flow detention time=(not calculated: outflow precedes inflow) Center-of-Mass del. time=69.3 min(814.1 - 744.8 ) Volume Invert Avail.Storage Storage Description #1 0.00, 226 of Custom Stage Data(Prismatic)Listed below(Recalc) 845 cf Overall-279 cf Embedded=565 cf x 40.0%Voids #2 159.95' 279 cf 47.8"W x 30.0"H x 6.25'L Cultac R-330 x 6 Inside#1 506 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store _ (feet) (sq-ft) (cubic-feet) (cubic-feet) 159.45 277 0 0 162.50 277 845 845 Device Routing Invert Outlet Devices #1 Primary 161.78' 8.0" x 11.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 160.02' S= 0.1600'1` Cc=0.900 n= 0.013 Corrugated PE,smooth interior #2 Discarded 0.00' 4.600 inlhr Exfiltration over Horizontal area I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-25yr-rev1 Type !!!24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 19 HydroCAW)8.01 s1n 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Discarded OutFlow Max=0.03 cfs @ 8.14 hrs HW=159.48' (Free Discharge) 't---2=ExfiItration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.62 cfs @ 12.04 hrs HW=162.25' TW=158.20' (Dynamic Tailwater) L1=Culvert (Inlet Controls 0.62 cfs @ 2.34 fps) Summary for Pond 28P: Proposed Drain Manhole Inflow Area = 0.404 ac, Inflow Depth = 3.98" for 25 yr event Inflow = 2.59 cfs @ 12.03 hrs, Volume= 0.134 of Outflow = 2.59 cfs @ 12.03 hrs, Volume= 0.134 af, Atten=0%, Lag=0.0 min Primary = 2.59 cfs @ 12.03 hrs, Volume= 0.134 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 161.17' @ 12.03 hrs Flood Elev= 164.70' Device Routing Invert Outlet Devices 91 Primary 16021' 12.0" x 50.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 157.10' S=0.0622 T Cc= 0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=2.58 cfs @ 12.03 hrs HW=161.17' TW=159.06' (Dynamic Tailwater) Z--1=Culvert (Inlet Controls 2.58 cfs @ 3.34 fps) Summary for Pond 29P: Proposed Drain Manhole Inflow Area = 0.654 ac, Inflow Depth = 3.32" for 25 yr event Inflow = 3.21 cfs @ 12.03 hrs, Volume= 0.181 of Outflow = 321 cfs @ 12.03 hrs, Volume= 0.181 A Atten=0%, Lag= 0.0 min Primary - 3.21 cfs @ 12.03 hrs, Volume= 0.181 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 158.22'@ 12.03 hrs Flood Elev= 161.80' Device Routing Invert Outlet Devices #1 Primary 157,00' 12.0" x 157.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 153.00' S=0.0255 T Cc=0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=3.20 cfs @ 12.03 hrs HW=158.22' TW=150.42' (Dynamic Tailwater) L1=Culvert (Inlet Controls 3.20 cfs @ 4.08 fps) Summary for Pond 30P: Detention Pond Inflow Area = 0.989 ac, Inflow Depth = 2.77" for 25 yr event Inflow = 3.71 cfs @ 12.03 hrs, Volume= 0.228 of Outflow - 0.56 cfs @ 12.53 hrs, Volume= 0.228 af, Atten=85%, Lag=29.7 min Primary - 0.56 cfs @ 12.53 hrs, Volume= 0.228 of Routing by Dyn-Star-Ind method, Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 151.09'@ 12.53 hrs Surf.Area=3,254 sf Storage=4,759 cf Plug-Flow detention time= 186.3 min calculated for 0.228 of(100%of inflow) Center-of-Mass det. time= 184.8 min (978.1 -793.3} L\USERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev,-25yr-rev1 Type !II 24-hr 25 yr Rainfall=5.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 20 N droCAD®8.01 sin 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Volume Invert Avail.Stora e Storage Description #71 0.00, 8,036 of Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sg-ft) (cubic-feet) (cubic-feet) 149.25 1,940 0 0 150.00 2,450 1,646 1,646 151.00 3,181 2,816 4,462 152.00 3,968 3,575 8,036 Device Routing Invert Outlet Devices Iil Primary 149,25' 12.0" x 50.0' long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 148.75' S=0.0100'T Cc=0.900 n=0.013 Corrugated PE, smooth interior 112 Device 1 149.25' 2.0"Vert.OrificelGrate C= 0.600 113 Device 1 150,00' 4.0"Vert.OrificelGrate C= 0.600 114 Device 1 151,00' 4.0"Vert.OrificelGrate C=0.600 115 Device 1 151.50' 2.00'x 2.00'Horiz.Orifice/Grate Limited to weir flow C=0.600 Primary OutFlow Max=0.56 cfs @ 12.53 hrs HW=151.09' TW=0.00' (Dynamic Tallwater) L1=Culvert (Passes 0.56 cfs of 4.17 cfs potential flow) . - OrificelGrate (Orifice Controls 0.14 cis @ 6.39 fps) 3=OrificelGrate (Orifice Controls 0.40 cfs @ 4.63 fps) =OrificelGrate (Orifice Controls 0.02 cfs @ 1.03 fps) S=OrificelGrate ( Controls 0.00 cfs) Summary for Pond 31 P: 6' "Downstream Defender" Inflow Area = 0.404 ac, Inflow Depth= 3,98" for 25 yr event Inflow = 2.59 cfs @ 12.03 hrs, Volume= 0.134 of Outflow - 2.59 cfs @ 12.03 hrs, Volume= 0.134 af, Atten= 0%, Lag=0.0 min Primary - 2.59 cfs @ 12.03 hrs, Volume= 0.134 of Routing by Dyn-Star-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 159.06' @ 12.03 hrs Flood Elev= 163.00' Device Routing Invert Outlet Devices ##1 Primary 158.10' 12.0" x 40.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet invert= 157.10' S=0.0250 T Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=2.58 cfs @ 12.03 hrs HW=159.06' TW=158.22' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 2.58 cfs @ 3.34 fps) Summary for Pond LAKE: Lake Cochichewick Inflow Area = 3.830 ac, Inflow Depth = 2.44" for 25 yr event Inflow - 7.54 cfs @ 12.07 hrs, Volume= 0.779 of Primary - 7,54 cfs @ 12.07 hrs, Volume= 0.779 af, Atten=0%, Lag=0.0 min Routing by Dyn-Star-Ind method, Time Span=0.00-48.00 hrs,dl=0.01 hrs/5 1:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev,-100yr-revl Prepared by Rist-Frost-Shurnway Engineering, P.C. Rage 1 H droCADO 8.01 sln 001039 ©2007 H droCAD Software Solutions LLC 511/2007 Area Listing (all nodes) Area CN Description (acres) (sub catchment-nu mbers) 0.557 58 Woods/grass comb.,Good, HSG 8 (6S,7S,8S) 4,967 61 >75%Grass cover,Good, HSG B (1S,3S,4S,5S,68,7S,9S,10S,12S,16S) 1.306 98 Paved parking&roofs (1S,2S,3S,4S,55,6S,7S,8S,9S,10S,11S,12S,13S,16S,17S,19S,20S,21S,22S,23S) 3.830 TOTAL AREA I:IUSERSIENGR149841civih4984 Hydrocadl 4984 Brooks Science Center Past-Dev.-100yr-rev1 Type Ilf 24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 2 H droCADO 8.01 sln 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Time span=0.00-48.00 hrs,dt=0.01 hrs,4801 points x 5 Runoff by SCS TR-20 method, UH=SCS Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Star-Ind method Subcatchment 1S: Drainage Area 1 Runoff Area=34,042 sf Runoff Depth=3.54" Flow Length=292' Slope=0.0790 T Tc=4.9 min CN=75 Runoff=3.38 cfs 0.230 of Subcatchment 2S: Drainage Area 2 Runoff Area=1,109 sf Runoff Depth=6.06" Flow Length=22' Slope=0.7500'1' Tc=O.i min CN=98 Rurioff=0.19 cis 0.013 of Subcatchment 3S: Drainage Area 3 Runoff Area=9,400 st Runoff Depth=2.57" Flow Length=147' Slope=0.0730'1' Tc=3.9 min CN=65 Runoff=0.69 cfs 0.046 of Subcatchment 43: Drainage Area 4 Runoff Area=10,127 sf Runoff Depih=3.44" Flow Length=152' Slope=0.0800 7' Tc=3.0 min CN=74 Runoff=1.05 cfs 0.067 of Subcatchment 5S: Drainage Area 5 Runoff Area=13,454 sf Runoff Depth=2.48" Flow Length=154' Slope=0.0800'1' Tc=3.9 min CN=64 Runoff=0.95 cfs 0.064 of Subcatchment 6S: Drainage Area 6 Runoff Area=14,627 sf Runoff Depth=2.39" Flow Length=224' Slope=0.0900 7' Tc=5.1 min CN=63 Runoff=0.95 cfs 0,067 of Subcatchment 7S: Drainage Area 7 Runoff Area=24,118 sf Runoff Depth=2.39" Flow Length=351' S€ope=0.0710 7' Tc=8.3 min CN=63 Runoff=1.39 cfs 0.110 of Subcatchment 8S: Drainage Area 8 Runoff Area=18,654 sf Runoff Depth=2.48" Flow Length=378' Slope=0.0470'P Tc=10.5 min CN=64 Runoff=1.04 cfs 0.088 of Subcatchment 9S: Drainage Area 9 Runoff Area=12,110 sf Runoff Depth=4.80" Flow Length=183' Slope=0.0670 7' Tc=2.5 min CN=87 Runoff=1.72 cfs 0.111 at Subcatchment 10S: Drainage Area 10 Runoff Area=1,827 sf Runoff Depth=5.36" Flow Length=34' Slope=0.0740'P Tc=0.5 min CN=92 Runoff=0.30 cis 0.019 of Subcatchment 11 S: Drainage Area 11 Runoff Area=1,096 sf Runoff Depth=6.06" Flow Length=22' Slope=0.7500'1' Tc=0.1 min CN=98 Runoff=0.19 cfs 0,013 of Subcatchment 12S: Drainage Area 12 Runoff Area=5,989 sf Runoff Depth=3.24" Flow Length=82' Slope=0.0550 T Tc=2.3 min CN=72 Runoff=0.60 cfs 0.037 of Subcatchment US: Drainage Area 13 Runoff Area=2,311 sf Runoff Depth=6.06" Flow Length=22' Slope=0.7500 7' Tc=0.1 min CN=98 Runoff=0.40 cfs 0.027 of Subcatchment 16S: Drainage Area 16 Runoff Area=2,722 sf Runoff Depth=3.64" Flow Length=64' Slope=0.0780 T Tc=1.4 min CN=76 Runoff=0.32 cfs 0.019 of Subcatchment 17S: Drainage Area 17 Runoff Area=3,019 sf Runoff Depth=6.06" Flow Length=120' Tc=0.4 min CN=98 Runoff=0.52 cfs 0.035 of Subcatchment 19S: Drainage Area 19 Runoff Area=1,D11 sf Runoff Depih=6.46" Flow Length=23' Slope=0.7500 7' Tc=0.1 min CN=98 Runoff=0.17 cfs 0.012 of Subcatchment 20S: Drainage Area 20 Runoff Area=1,331 sf Runoff Depih=6.06" Flow Length=23' Slope=0.7500 7' Tc=OA min CN=98 Runoff=0.23 cfs 0.015 of Subcatchment 21S: Drainage Area 21 Runoff Area=1,213 sf Runoff Depih=6.06" Flow Length=24' Slope=0.7500 7' Tc=0.1 min CN=98 Runoff=0.21 cfs 0.014 of Subcatchment 22S: Drainage Area 22 Runoff Area=149 sf Runoff Depth=6.06" Flow Length=24' Slope=0.7500 7' Tc=0.1 min CN=98 Runoff=0.03 cfs 0.002 of Subcatchment 23S: Drainage Area 23 Runoff Area=8,525 sf Runoff Depth=6.06" Flow Length=355' Tc=1.8 min CN=98 Runoff=1.40 cfs 0.099 of I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Past-Dev.-100yr-rev1 Type fff 24-hr 100 yr Rainfalf=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 3 H droCAD®8.01 s/n 001039 0 2007 H droCAD Software Solutions LLC 5/1/2007 Pond 11 : Existing CB Peak EIev=160.66' Inflow=3.38 cfs 0.230 of 12.0"x 188.0'Culvert Outflow=3.38 cfs 0.230 of Pond 1P: Cistern Peak EIev=169.99' Inflow=0.19 cfs 0.013 of 8.0"x 12.0'Culvert Outflow=0.19 cfs 0.013 of Pond 2E: Existing CB Peak EIev=160.51' Inflow=2.43 cfs 0.115 of Primary=1.51 cfs 0.111 of Secondary=0.92 cfs 0.006 of Outflow=2.43 cfs 0.115 of Pond 2P: Proposed In-line drain Peak EIev=170.47' Inflow=0.19 cfs 0.013 of 6.0"x 18.0'Culvert Outflow=0.19 cfs 0.013 of Pond 3E: Existing CB Peak Elev=160.51' Storage=51 cf Inflow=1.05 cfs 0.067 of Outflow=1.76 cfs 0.067 of Pond 4E: Reconstructed CB Peak EIev=156.73' Inflow=1.04 cfs 0.088 of Primary=1.04 cfs 0.088 of Secondary=0.00 cfs 0.000 of Outflow=1.04 cfs 0.088 of Pond 5E: Existing CB Peak Elev=167.88' Inflow=1.98 cfs 0.130 of 12.0"x 28.0'Culvert Outflow=1.98 cfs 0.130 of Pond 6E: Existing DMH Peak Elev=165.24' Inflow=1.98 cfs 0.130 of 12.0"x 240.0'Culvert Outflow=1.98 cfs 0.130 of Pond 7E: Existing DMH Peak EIev=156.13' Inflow=2.56 cfs 0.219 of 10.0"x 257.0'Culve€t Outflow=2,56 cfs 0.219 of Pond 10P: Proposed CB Peak EIev=168.38' Inflow=0.30 cfs 0.019 of 12.0"x 29.0'Culvert Outflow=0.30 cfs 0.019 of Pond 11 P: Proposed In-line drain Peak EIev=170.63' Inflow=0.19 cfs 0.013 of 6.0"x 35.0'Culvert Outflow=0.19 cfs 0.013 of Pond 12P: Upper Wet/Dry Garden Peak EIev=169.69' Storage=129 cf Inflow=1.61 cfs 0.112 of Outflow=1.60 cfs 0.110 of Pond 13P: PROPOSED YARD DRAIN Peak EIev=170.80' Inflow=0.40 cfs 0.027 of 8.0"x 42.0'Culvert Outflow=0.40 cfs 0.027 of Pond 16P: Lower Wet/Dry Garden Peak EIev=168.78' Storage=240 cf Inflow=231 cfs 0.157 of Outflow=2.22 cfs 0.156 of Pond 19P: Proposed In-line drain Peak EIev=169.29' Inflow=0.17 cfs 0.012 of 6.0"x 75.0'Culvert Outflow=0.17 cfs 0.012 of Pond 20P: Proposed In-line Drain Peak EIev=168.68' Inflow=0.40 cfs 0.027 of 6.0"x 112.0'Culvert Outflow=0.40 cfs 0.027 of Pond 21P: Proposed In-line Drain Peak EIev=168.91' Inflow=0.21 cfs 0.014 of 6.0"x 50.0'Culvert Outflow=0.21 cfs 0.014 of Pond 22P: Proposed In-line Drain Peak EIev=168.83' Inflow=0.23 cfs 0.016 of 6.0"x 7.0'Culvert Outflow=0.23 cfs 0.016 of Pond 24P: Proposed Yard Drain Peak EIev=162.84' Inflow=2.22 cfs 0,156 of 12.0"x 42.0'Culvert Outflow=2.22 cfs 0.156 of Pond 26P: Proposed Drain Manhole Peak Elov=163.44' Inflow=1.76 cfs 0.126 of Primary=0.68 cfs 0.112 of Secondary=1.08 cfs 0.014 of Outflow=1.76 cfs 0.126 of Pond 27P: Recharge Sytem Peak EIev=162.27' Storage=478 cf lnflow=0.68 cfs 0.112 of Discarded=0.03 cfs 0.053 of Primary=0.65 cfs 0.059 of Outflow=0.67 cfs 0.112 of I:\USERSIENGR149841civi1t4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-1 00yr-revl Type 11124-hr 900 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 4 li droCADO 8,01 s/n 001039 ©2007 Ff droCAD Software Solutions LLC 5/112007 Pond 28P: Proposed Drain Manhole Peak Elev=161.46' Inflow=3.28 cfs 0,170 of 12.0"x 50.0'Culvert Outflow=3.28 cfs 0,170 of Pond 29P: Proposed Drain Manhole Peak Elev=158.57' Inflow=3.92 cfs 0,229 of 12.0"x 157.0'Culvert Outflow=3.92 cfs 0,229 of Pond 30P: Detention Pond Peak Elev=151.45' Storage=5,989 cf Inflow=4.67 cfs 0.295 of Outflow=0.H cfs 0.295 of Pond 31P: 6' "Downstream Defender" Peak Elev=159.35' Inflow=3.28 cfs 0,170 of 12.0"x 40.0'Culvert Outflow=3.28 cfs 0.170 of Pond LAKE: Lake Cochichewick Inflow=10.78 cfs 1.035 of Primary=10.78 cfs 1.035 of Total Runoff Area=3.830 ac Runoff Volume 1.088 of Average Runoff Depth=3.41" 65.91%Pervious Area=2.524 ac 34.09%Impervious Area=1.306 ac I:%USERSIENGRA9841civi114984 Hydrocadt 4984 Brooks Science Center Post-Dev.-100yr-revl Type I!! 24-hr 900 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 5 H droCADO 8.01 sln 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 15: Drainage Area 1 Runoff = 3.38 cfs @ 12.07 hrs, Volume= 0.230 af, Depth= 3.54" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00 48.00 hrs, dt=0.01 hrs Type Ill 24-hr 100 yr Rainfall=6.30" Area sf CN Description 12,847 98 Paved parking &roofs 21,195 61 >75%Grass cover,Good, HSG B 34,042 75 Weighted Average 21,195 Pervious Area 12,847 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) ft/sec) (cfs) 4.9 292 0.0790 0.99 Lag/CN Method, Summary for Subcatchment 2S: Drainage Area 2 Runoff - 0.19 cfs @ 12.00 hrs, Volume= 0.013 af, Depth= 6.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area (sf) CN Description 1,109 98 Paved parking &roofs 1,109 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft ftlsec cfs 0.1 22 0.7500 4,26 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 3S: Drainage Area 3 Runoff - 0.69 cfs @ 12.06 hrs, Volume= 0.046 af, Depth= 2.57" -20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Runoff by SCS TR Typo III 24-hr 100 yr Rainfall=6.30" Area sf CN Description 1,022 98 Paved parking&roofs 8,378 61 >75%Grass cover,Good HSG B 9,400 65 Weighted Average 8,378 Pervious Area 1,022 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft) (ft/sec) (cfs 3.9 147 0.0730 0.63 Lag/CN Method, Summary for Subcatchment 4S: Drainage Area 4 Runoff = 1.05 cfs @ 12.05 hrs, Volume= 0,067 af, Depth= 3.44" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" I:IUSERSIENGRi4984icivi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-rev1 Type l!! 24-hr 900 yr Rainfall=6.30" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 6 H droCADO 8.01 sin 001039 OO 2007 H droCAD Software Solutions LLC 511 f2007 Area sf CN Description 3,682 98 Paved parking & roofs 6,445 61 >75% Grass cover, Good HSG B 10,127 74 Weighted Average 6,445 Pervious Area 3,682 Impervious Area Tc Length Slope Velocity Capacity Description min feet Rift fusee cfs 3.0 152 0.0800 0.85 Lag/CN Method, Summary for Subcatchment 5S: Drainage Area 5 Runoff — 0.95 cfs @ 12.06 hrs, Volume= 0.064 af, Depth= 2.48" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area sf CN Description 1,179 98 Paved parking &roofs 12,275 61 >75% Grass cover, Good HSG B 13,454 64 Weighted Average 12,275 Pervious Area 1,179 Impervious Area Tc Length Slope Velocity Capacity Description min feet fUft tUsec cfs 3.9 154 0.0800 0.65 Lag/CN Method, Summary for Subcatchment 6S: Drainage Area 6 Runoff — 0.95 cfs @ 12.08 hrs, Volume= 0.067 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt=0.01 hrs -hr 100 yr Rainfall=6.30" Type Ill 24 Area sf CN Description 1,065 98 Paved parking & roofs 10,175 61 >75% Grass cover, Good, HSG B 3,387 58 Woods/grass comb. Good, HSG B 14,627 63 Weighted Average 13,562 Pervious Area 1,065 Impervious Area Tc Length Slope Velocity Capacity Description min feet ftlft ft/sec cfs 5.1 224 0.0900 0.73 LaglCN Method, Summary for Subcatchment 7S: Drainage Area 7 Runoff = 1.39 cfs @ 12.12 hrs, Volume= 0.110 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" I:IUSERSIENGR149841civR4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-revl Type 111 24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shurnway Engineering, P.C_ Page 7 HydroCADO 8.01 s/n 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Area sf CN Description 1,472 98 Paved parking& roofs 17,436 61 >75%Grass cover,Good, HSG B 5,210 58 Woods/grass comb., Good, HSG B 24,118 63 Weighted Average 22,646 Pervious Area 1,472 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/soc cfs 8.3 351 0.0710 0.71 Lag/CN Method, Summary for Subcatchment 8S: Drainage Area 8 Runoff = 1.04 cfs @ 12.15 hrs, Volume= 0.088 af, Depth= 2.48" -20 method, UH=SCS,Time Span=0,00-48.00 hrs, dt= 0.01 hrs Runoff by SCS TR Type III 24-hr 100 yr Rainfall=6.30" Area sf CN Description 2,996 98 Paved parking &roofs 15,658 58 Woods/grass comb., Good HSG B 18,654 64 Weighted Average 15,658 Pervious Area 2,996 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ftlsec cfs 10.5 378 0.0470 0.60 Lag/CN Method, Summary for Subcatchment 9S: Drainage Area 9 Runoff - 1.72 cfs @ 12.04 hrs, Volume= 0.111 af, Depth= 4.80" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area (sf) CN Description 8,367 98 Paved parking & roofs 3,743 61 >75% Grass cover,Good HSG B 12,110 87 Weighted Average 3,743 Pervious Area 8,367 Impervious Area Tc Length Slope Velocity Capacity Description min feet ftlft ft/sec cfs 2.5 183 0,0670 1.23 LagICN Method, Summary for Subcatchment 90S: Drainage Area 10 Runoff 0.30 cfs @ 12.01 hrs, Volume= 0.019 af, Depth= 5.36" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" I:IUSERSIENGR149841civR4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-rev1 Type 11124-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 8 HydroCADO 8.01 s/n 001039 ®2007 HydroCAD Software Solutions LLC 5/1/2007 Area(sf) CN Description 1,549 98 Paved parking&roofs 278 61 >75% Grass cover, Good, HSG B 1,827 92 Weighted Average 278 Pervious Area 1,549 Impervious Area Tc Length Slope Velocity Capacity Description ruin (feet) ft/ft fusee cfs 0.5 34 0.0740 1.13 Lag/CN Method, Summary for Subcatchment 11S. Drainage Area 11 Runoff = 0.19 cfs @ 12.00 hrs, Volume= 0.013 af, Depth= 6.06" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs -hr 100 yr Rainfall=6.30"Typo III 24 Area (sf) CN Description 1,096 98 Paved parking& roofs 1,096 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2= 3.10" Summary for Subcatchment 12S: Drainage Area 12 Runoff - 0.60 cfs @ 12.04 hrs, Volume= 0.037 af, Depth= 3.24" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area (sf) CN Description 1,845 98 Paved parking& roofs 4,144 61 >75% Grass cover, Good, HSG B 5,989 72 Weighted Average 4,144 Pervious Area 1,845 Impervious Area Tc Length Slope Velocity Capacity Description (min) {feet) (ft/ft) (ftlsec) (cfs) 2.3 82 0.0550 0.59 Lag/CN Method, Summary for Subcatchment 13S: Drainage Area 13 Runoff = 0.40 cfs @ 12.00 hrs, Volume= 0.027 af, Depth= 6.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area LsfL CN Description 2,311 98 Paved parking & roofs 2,311 Impervious Area I:IUSERSIENGR14984Lcivi114984 Hydrocadt 4984 Brooks Science Center Post-Dev.-100yr-rev1 Type !!I 24-hr 900 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 9 HvdroCADQ 8.01 sin 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Tc Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 0.1 22 0.7500 4.26 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 16S: Drainage Area 16 Runoff = 0.32 cfs @ 12.02 hrs, Volume= 0.019 af, Depth= 3.64" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area (sf) CN Description 1,088 98 Paved parking & roofs 1,634 61 >75%Grass cover, Good HSG B 2,722 76 Weighted Average 1,634 Pervious Area 1,088 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.4 64 0.0780 0.75 Lag/CN Method, Summary for Subcatchment 17S: Drainage Area 17 Runoff = 0.52 cfs @ 12.01 hrs, Volume= 0.035 af, Depth= 6.06" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area sf CN Description.. 3,019 98 Paved parking& roofs 3,019 Impervious Area Te Length Slope Velocity Capacity Description min feet ft/ft ft/sec cfs 0.1 30 0.7500 4.54 Sheet Flow,Across Roof Smooth surfaces n= 0.011 P2=3.10" 0.2 50 0.0200 4.90 1.71 Circular Channel(pipe), Roof Drain Diam= 8.0" Area=0.3 sf Perim=2.1' r=0.17' n= 0.013 0.1 40 0.0250 7.17 5.63 Circular Channel(pipe),Roof Drain Diam= 12.0" Area=0.8 sf Perim= 3.1' r=0.25' n= 0.013 0.4 120 Total Summary for Subcatchment 19S: Drainage Area 19 Runoff - 0.17 cfs @ 12.00 hrs, Volume= 0.012 af, Depth= 6,06" Runoff by SCS TR-20 method, UH=SCS,Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Type Ili 24-hr 100 yr Rainfall=6.30" Area sf CN Description 1,011 98 Paved parking &roofs 1,011 Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft) (ft/sec) (cfs 0.1 23 0.7500 4.30 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2=3.10" I:IUSERSIENGR149841civH\4984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-revl Type H/ 24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 10 HydroCADO 8.01 sln 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Summary for Subcatchment 20S: Drainage Area 20 Runoff - 0.23 cfs @ 12.00 hrs, Volume= 0.015 af, Depth= 6.06" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area sf CN Description 1,331 98 Paved arkin &roots 1,331 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ftl (ft/sec) (cfs) 0.1 23 0.7500 4.30 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 21S: Drainage Area 21 Runoff - 0.21 cfs @ 12.00 hrs, Volume= 0.014 af, Depth= 6,06" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area sf CN Description 1,213 98 Paved parking&roofs 1,213 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (fUsec) (cfs) 0.1 24 0.7500 4.34 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 22S: Drainage Area 22 Runoff - 0.03 cfs @ 12.00 hrs, Volume= 0.002 af, Depth= 6.06" Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-48.00 hrs,dt=0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area sf CN Description 149 98 Paved parking &roofs 149 Impervious Area Te Length Slope Velocity Capacity Description (min) (feet) (ftlft) (fUsec) (cfs) 0.1 24 0.7500 4.34 Sheet Flow,Across Roof Smooth surfaces n=0.011 P2= 3.10" Summary for Subcatchment 23S: Drainage Area 23 Runoff - 1.40 cfs @ 12.03 hrs, Volume= 0.099 af, Depth= 6.06" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-48.00 hrs, dt= 0.01 hrs Type III 24-hr 100 yr Rainfall=6.30" Area (sf) CN Description 8,525 98 Paved parking&roofs 8,525 Impervious Area I:IUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-revl Type 1!!24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 11 H droCADO 8.01 s1n 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Tc Length Slope Velocity Capacity Description (min) (feet) (fUft) (ftfsec) (cfs) 0.7 50 0.0200 1.18 Sheet Flow,Across Flat Roof Smooth surfaces n=0.011 P2= 3.10" 0.8 225 0.0200 4.90 1.71 Circular Channel(pipe),Roof Drain in building Diam= 8.0" Area= 0.3 sf Perim=2.1' r= 0.17' n=0.013 Cast iron, coated 0.3 80 0.0100 4.54 3.56 Circular Channel(pipe),Roof drain outside building Diam= 12.0" Area=0.8 sf Perim= 3.1' r=0.25' n=0.013 Corrugated PE smooth interior 1.8 355 Total Summary for Pond 1 E: Existing CB Inflow Area = 0.781 ac, Inflow Depth = 3.54" for 100 yr event Inflow - 3.38 cfs @ 12.07 hrs, Volume= 0.230 of Outflow - 3.38 cfs @ 12.07 hrs, Volume= 0.230 at, Allen=0%, Lag=0.0 min Primary - 3.38 cfs @ 12.07 hrs, Volume= 0.230 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 160.66'@ 12.07 hrs Flood Elev= 162.90' Device Routing Invert Outlet Devices 111 Primary 159.36' 12.0" x 188.0'long Culvert RCP, square edge headwall, Ke=0.500 Outlet Invert= 150.21' S= 0.0487 T Cc=0.900 n= 0.012 Concrete pipe, finished Primary OutFlow Max=3.37 cfs @ 12.07 hrs HW=160.65' TW=0.00' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 3.37 cfs @ 4.29 fps) Summary for Pond 1 P: Cistern Inflow Area = 0.025 ac, Inflow Depth = 6.06" for 100 yr event Inflow - 0.19 cfs @ 12.00 hrs, Volume= 0.013 of Outflow - 0.19 cfs @ 12.00 hrs, Volume= 0.013 at, Atten=0%, Lag=0.0 min Primary = 0.19 cfs @ 12.00 hrs, Volume= 0.013 at Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs!5 Peak Elev= 169.99'@ 12.00 hrs Device Routing Invert Outlet Devices 91 Primary 169.75' 8.0" x 12.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 169.00' S=0.0625 7' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.19 cfs @ 12.00 hrs HW=169.99' TW=168.74' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 0.19 cfs @ 1.67 fps) Summary for Pond 2E: Existing CB Inflow Area = 0.448 ac, Inflow Depth= 3.07" for 100 yr event Inflow = 2.43 cfs @ 12.06 hrs, Volume= 0.115 of Outflow - 2.43 cfs @ 12.06 hrs, Volume 0.115 af, Atten=0%, Lag=0.0 min Primary - 1.51 cfs @ 12.06 hrs, Volume 0A 11 of Secondary= 0,92 cfs @ 12.06 hrs, Volume= 0.006 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48,00 hrs,dt=0.01 hrs/5 Peak Elev= 160.51'@ 12.06 hrs Flood Elev= 160.60' l:lUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-revl Type III 24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 12 H droCAD�8.01 sln 001039 O 2007 N droCAd Software Solutions LLC 5/1/2007 Device Routing Invert Outlet Devices #1 Primary 156.86' 6.0" x 200.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 150.04' S=0.0341 T Cc=0.900 n= 0.010 PVC, smooth interior 92 Secondary 160.40' 2.00'x 2.00' Horiz.Orifice/Grate Limited to weir flow C= 0.600 Primary OutFlow Max=1.51 cfs @ 12.06 hrs HW=160.45' TW=0.00' (Dynamic Tailwater) Z--1=Culvert (Barrel Controls 1.51 cfs @ 7.67 fps) Secondary OutFlow, Max=0.70 cfs @ 12.06 hrs HW=160.49' TW=0.00' (Dynamic Tailwater) t--2=Orifice/Grate (Weir Controls 0.70 cfs @ 0.98 fps) Summary for Pond 2P: Proposed In-line drain Inflow Area = 0.025 ac, Inflow Depth = 6.06" for 100 yr event Inflow - 0.19 cfs @ 12.00 hrs, Volume= 0.013 of Outflow - 0.19 cfs @ 12.00 hrs, Volume= 0.013 af, Atten= 0%, Lag=0.0 min Primary = 0,19 cfs @ 12.00 hrs, Volume= 0.013 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 170.47'@ 12.00 hrs Flood Elev= 172,00' Device Routing Invert Outlet Devices #1 Primary 170.18' 6.0" x 18.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 170.00' S= 0.0100 T Cc=0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.19 cfs @ 12.00 hrs HW=170.47' TW=169.99' (Dynamic Tailwater) t--1=Culvert (Barrel Controls 0.19 cfs @ 2.29 fps) Summary for Pond 3E: Existing CB Inflow Area= 0.232 ac, Inflow Depth = 3.44" for 100 yr event Inflow - 1.05 cfs @ 12.05 hrs, Volume= 0.067 of Outflow - 1.76 cfs @ 12.04 hrs, Volume= 0.067 A Alten=0%, Lag=0.0 min Primary = 1.76 cfs @ 12.04 hrs, Volume= 0.068 of Routing by Dyn-Star-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs/5 Peak Elev= 160.51'@ 12.06 hrs Surf.Area=330 sf Storage=51 cf Flood Elev= 160.00' Surf.Area= 330 sf Storage= 51 cf Plug-Flow detention time=0.8 min calculated for 0.067 of(100% of inflow) Center-of-Mass det.time=0.6 min (824.4 -823.8 j Volume Invert Avait.Stora e Storage Description #1 0.00, 51 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf-Area Inc.Store Cum.Store (feet) (sg-ft) (cubic-feet) (cubic-feet) 157.76 13 0 0 159.86 13 27 27 160.00 330 24 51 Device Routing Invert Outlet Devices 41 Primary 157,76' 6.0" x 34.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 157.23' S=0.0156 7' Cc=0.900 n= 0.010 PVC, smooth Interior #2 Primary 159.86' 2.00'x 2.00'Horiz.Orifice/Grate Limited to weir flow C= 0.600 Primary OutFlow Max=1.76 cfs @ 12.04 hrs HW=160.51' TW=160.51' (Dynamic Tailwater) �1=Culvert (Outlet Controls 0.08 cfs @ 0.40 fps) 2=OrificelGrate (Orifice Controls 1.68 cfs @ 0.42 fps) I:IUSERSIENGR149841civif14984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-rev'i Type H/24-hr 100 yr Rainfa11=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 13 HydroCAt]O 8.01 s!n 001039 O 2007 H draCAt7 Software Solutions LLC 5/1/2007 Summary for Pond 4E: Reconstructed CB Inflow Area = 0.428 ac, Inflow Depth = 2.48" for 100 yr event Inflow - 1,04 cfs @ 12.15 hrs, Volume= 0.088 at Outflow - 1.04 cfs @ 12.15 hrs, Volume= 0.088 at, Atten=0%, Lag= 0.0 min Primary = 1.04 cfs @ 12A5 hrs, Volume= 0.088 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 at Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 156.73'@ 12.15 hrs Flood Elev= 160.00' Device Routing Invert Outlet Devices #1 Primary 156.00' 8.0" x 35.0' long Culvert CPP,square edge headwall, Ke=0,500 Outlet Invert= 155.65' S=0.0100 T Cc=0.900 n=0.013 Clay tile #2 Secondary 159.80' 2.00'x 2.00'Horiz. Orifice/Grate Limited to weir flow C=0,600 Primary OutFlow Max=1.04 cfs @ 12.15 hrs HW=156.73' TW=155.71' (Dynamic Tailwater) t-1=Culvert (Barrel Controls 1.04 cfs @ 3.41 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=156,00' TW=0.00' (Dynamic Tailwater) t-2=0rificelGrate (Controls 0.00 cfs) Summary for Pond 5E: Existing CB Inflow Area= 0.320 ac, Inflow Depth= 4.88" for 100 yr event Inflow = 1.98 cfs @ 12.03 hrs, Volume= 0.130 of Outflow = 1.98 cfs @ 12.03 hrs, Volume= 0.130 at, Atten=0%, Lag= 0.0 min Primary = 1.98 cfs @ 12.03 hrs, Volume= 0.130 of Routing by Dyn-Star-Ind method,Time Span=0.00-48.00 hrs, dt= 0.01 hrs/5 Peak Elev= 167.88'@ 12.03 hrs Flood Elev= 171.83' Device Routing Invert Outlet Devices #1 Primary 167.10' 12.0" x 28.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 164.50' S=0.0929 7' Cc=0.900 n=0.010 PVC, smooth interior Primary OutFlow Max=1.97 cfs @ 12.03 hrs HW=167.88' TW=16524' (Dynamic Tailwater) t--1=Culvert (Inlet Controls 1.97 cfs @ 3.00 fps) Summary for Pond 6E: Existing DMH Inflow Area= 0.320 ac, Inflow Depth = 4.88" for 100 yr event Inflow - 1.98 cfs @ 12.03 hrs, Volume= 0.130 of Outflow = 1.98 cfs @ 12.03 hrs, Volume= 0.130 at, Atten=0%, Lag=0.0 min Primary = 1,98 cfs @ 12.03 hrs, Volume= 0.130 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 165.24'@ 12.03 hrs Flood Elev= 170.73' Device Routing Invert Outlet Devices #1 Primary 164.46' 12.0" x 240.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 154.69' S=0.0407 T Cc= 0,900 n=0.010 PVC, smooth interior Primary OutFlow Max=1.97 cfs @ 12.03 hrs HW=165.24' TW=156.11' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 1.97 cfs @ 3.00 fps) I:\USERStENGR14984tcivil14984 Hydrocadl 4984 Brooks Science Center Past-Dev.-100yr-rev1 Type !!i 24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 14 vdroCADO 8.01 sin 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 7E: Existing DMH Inflow Area = 0.748 ac, Inflow Depth = 3.51" for 100 yr event Inflow = 2.56 cfs @ 12.04 hrs, Volume= 0.219 of Outflow = 2.56 cfs @ 12.04 hrs, Volume= 0.219 A Alten=0%, Lag=0.0 min Primary M 2.56 cfs @ 12.04 hrs, Volume= 0.219 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 156.13' @ 12.04 hrs Flood Elev= 158.85' Device Routing Invert Outlet Devices #1 Primary 154.76' 10.0" x 257.0' long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 143.30' S=0.0446 T Cc= 0.900 n= 0.013 Clay tile Primary OutFlow Max=2.55 cfs @ 12.04 hrs HW=156.12' TW=0.00' (Dynamic Tailwater) t--1=Culvert (Inlet Controls 2.55 cfs @ 4.68 fps) Summary for Pond 1OP: Proposed CB Inflow Area= 0.042 ac, Inflow Depth= 5.36" for 100 yr event Inflow - 0.30 cfs @ 12.01 hrs, Volume= 0.019 of Outflow = 0.30 cfs @ 12.01 hrs, Volume= 0.019 af, Atten=0%, Lag=0.0 min Primary = 0.30 cfs @ 12.01 hrs, Volume= 0.019 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 168.38'@ 12.01 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 168.10' 12.0" x 29.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 167.81' S=0.0100'I' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.30 cfs @ 12.01 hrs HW=168.38' TW=167.84' (Dynamic Tailwater) '�-1=Culvert (Barrel Controls 0.30 cfs @ 2A8 fps) Summary for Pond 11P: Proposed In-fine drain Inflow Area = 0.025 ac, Inflow Depth= 6.06" for 100 yr event Inflow = 0.19 cfs @ 12.00 hrs, Volume= 0.013 of Outflow = 0.19 cfs @ 12.00 hrs, Volume= 0.013 af, Atten=0%, Lag=0.0 min Primary = 0.19 cfs @ 12.00 hrs, Volume= 0.013 of Routing by Dyn-Star-Ind method, Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 Peak Elev= 170.63' @ 12,00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 170.35' 6.0" x 35.0'long Culvert CPP,square edge headwall, Ke= 0.500 Outlet Invert= 170.00' S=0.0100 7' Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.19 cfs @ 12.00 hrs HW=170.63' TW=169.68' (Dynamic Tailwater) t1=Culvert (Barrel Controls 0.19 cfs @ 2.39 fps) I:\USERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-rev1 Type 11!24-hr 900 yr Rainfall=6.3t7" Prepared by Rist-Frost-Shutnway Engineering, P.C. Page 15 HvdroCADO 8.01 s1n 001039 ©2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 12P: Upper Wet/Dry Garden Inflow Area = 0.285 ac, Inflow Depth = 4.70" for 100 yr event Inflow = 1.61 cfs @ 12.01 hrs, Volume= 0.112 of Outflow = 1.60 cfs @ 12.02 hrs, Volume= 0.110 af, Atten= 1%, Lag= 0.5 min Primary = 1.60 cfs @ 12.02 hrs, Volume= 0.110 of Routing by Dyn-Star-Ind method,Time Span=0.00-48.00 hrs,dt= 0.01 hrs 15 Peak Bev= 169.69'@ 12.02 hrs Surf.Area= 154 sf Storage= 129 of Flood Elev= 170,50' Surf.Area= 343 sf Storage=315 cf Plug-Flow detention time= 20.7 min calculated for 0.110 of(98%of inflow) Center-of-Mass dot. time= 10.6 min (779.2- 768.6 ) Volume Invert Avail.Stora e Storage Description #1 0.00, 315 cf Custom Stage Data(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feel 168.00 22 0 0 169.00 76 49 49 170.00 189 133 182 170.50 343 133 315 Device Routing...._ Invert Outlet Devices #1 Primary 169,30' 2.0'long x COO'rise Sharp-Crested Rectangular Weir 2 End Contractions) 1.5'Crest Height Primary OutFlow Max=1.59 cfs @ 12.02 hrs HW=169.69' TW=168.77' (Dynamic Tailwater) L1=Sharp-Crested Rectangular Weir (Weir Controls 1.59 cfs @ 2.11 fps) Summary for Pond 13P: PROPOSED YARD DRAIN Inflow Area= 0.053 ac, Inflow Depth = 6.06" for 100 yr event Inflow - 0.40 cfs @ 12.00 hrs, Volume= 0.027 of Outflow - 0.40 cfs @ 12.00 hrs, Volume= 0.027 af, Atten=0%, Lag= 0.0 min Primary = 0.40 cfs @ 12.00 hrs, Volume= 0.027 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 1 5 Peak Elev= 170.80' @ 12.00 hrs Flood Elev= 176.00' Device Routing Invert Outlet Devices #1 Primary 170.42' 8.0" x 42.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 170.00' S=0.0100 7' Cc=0.900 n=0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.40 cfs @ 12.00 hrs HW=170.80' TW=169.68' (Dynamic Tailwater) t1=Culvert (Barrel Controls 0.40 cfs @ 2.83 fps) Summary for Pond 16P: Lower Wet/Dry Garden Inflow Area= 0.404 ac, Inflow Depth= 4.68" for 100 yr event Inflow = 2.31 cfs @ 12.01 hrs, Volume= 0.157 of Outflow = 2.22 cfs @ 12.03 hrs, Volume= 0.156 af, Atten=4%, Lag= 1.1 min Primary = 2.22 cfs @ 12.03 hrs, Volume= 0.156 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 168.78'@ 12.03 hrs Surf.Area=439 sf Storage=240 cf Flood Elev= 169.00' Surf.Area= 512 sf Storage= 343 cf I:\USERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-rev1 Type III 24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 16 i 1 droCAD®8.01 sin 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Plug-Flow detention time= 14.2 min calculated for 0.156 of(99% of inflow) Center-of-Mass det. time=7.9 min (784.4 - 776.5 ) Volume Invert Avail.Stora e Storage Description 41 0.00, 640 cf Custom Stage Data(Prismatic)Listed below(Recatc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 168.00 174 0 0 169.00 512 343 343 169.50 674 297 640 Device Routing. Invert Outlet Devices #1 Primary 168.30' 2.0'long x 1.00'rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0'Crest Height Primary OutFlow Max=2.21 cfs @ 12.03 hrs HW=168.78' TW=162,84' (Dynamic Tailwater) t-1=Sharp-Crested Rectangular Weir (Weir Controls 2.21 cfs @ 2.41 fps) Summary for Pond 19P: Proposed In-line drain Inflow Area = 0.023 ac, Inflow Depth= 6.06" for 100 yr event Inflow = 0.17 cfs @ 12.00 hrs, Volume= 0.012 of Outflow = 0.17 cfs @ 12.00 hrs, Volume= 0.012 af, Atten=0%, Lag=0.0 min Primary = 0.17 cfs @ 12.00 hrs, Volume= 0.012 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 169.29'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 169.00' 6.0" x 75.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 168.25' S=0.0100'1' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.17 cfs @ 12.00 hrs HW=169.29' TW=168.68 (Dynamic Tailwater) L1=Culvert (Outlet Controls 0.17 cfs @ 2A6 fps) Summary for Pond 20P: Proposed In-line Drain Inflow Area - 0.054 ac, Inflow Depth = 6.06" for 100 yr event Inflow = 0.40 cfs @ 12.00 hrs, Volume= 0.027 of Outflow = 0.40 cfs @ 12.00 hrs, Volume= 0.027 af, Men=0%, Lag=0.0 min Primary = 0.40 cfs @ 12.00 hrs, Volume= 0.027 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48,00 hrs,dt=0.01 hrs 15 Peale Elev= 168.68'@ 12.00 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 168,25' 6.0" x 112.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 167.13' S=0.0100'/' Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.40 cfs @ 12.00 hrs HW=168.68' TW=163.41' (Dynamic Tailwater) L1=Culvert (Barrel Controls 0.40 cfs @ 2.99 fps) 1:lUSERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-rev1 Type 11! 24-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shutnway Engineering, P.C. Page 17 11 droCADO 8.01 s/n 001039 O 2007 H droCAD Software Solutions LLC 5/1/2007 Summary for Pond 21 P: Proposed In-line Drain Inflow Area= 0.028 ac, Inflow Depth = 6.06" for 100 yr event Inflow - 0.21 cfs @ 12.00 hrs, Volume= 0.014 of Outflow - 0.21 cfs @ 12.00 hrs, Volume= 0.014 af, Atten= 1%, Lag= 0.0 min Primary - 0.21 cfs @ 12.00 hrs, Volume= 0.014 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs, dt= 0.01 hrs 15 Peak Elev= 168.91' @ 12.01 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices 91 Primary 167.86' 6.0" x 50.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 167.36' S= 0.0100 T Cc= 0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=0.21 cfs @ 12.00 hrs HW=168.90' TW=168.81' (Dynamic Tailwater) t--1=Culvert (Outlet Controls 0.21 cfs @ 1.06 fps) Summary for Pond 22P: Proposed In-fine Drain Inflow Area = 0.031 ac, Inflow Depth = 6.06" for 100 yr event Inflow = 0.23 cfs @ 12.00 hrs, Volume= 0.016 of Outflow = 0.23 cfs @ 12.00 hrs, Volume= 0.016 af, Alten=0%, Lag= 0.0 min Primary = 0.23 cfs @ 12.00 hrs, Volume= 0,016 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt= 0.01 hrs/5 Peak Elev= 168.83'@ 12.02 hrs Flood Elev= 172.00' Device Routing Invert Outlet Devices #1 Primary 167.66' 6.0" x 7.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 167.59' S=0.0100 T Cc= 0.900 n= 0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.23 cfs @ 12.00 hrs HW=168.80' TW=168.74' (Dynamic Tailwater) L1=Culvert (Inlet Controls 0.23 cfs @ 1.19 fps) Summary for Pond 24P: Proposed Yard Drain Inflow Area = 0.404 ac, Inflow Depth = 4.63" for 100 yr event Inflow = 2.22 cfs @ 12.03 hrs, Volume= 0.156 of Outflow = 2.22 cfs @ 12.03 hrs, Volume= 0.156 af, Allen=0%, Lag=0.0 min Primary = 2.22 cfs @ 12.03 hrs, Volume= 0.156 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 162.84'@ 12.03 hrs Flood Elev= 166,75' Device Routing Invert Outlet Devices #1 Primary 162.00' 12.0" x 42,0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 160.49' S= 0.0360 7' Cc=0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=2.21 cfs @ 12.03 hrs HW=162.84' TW=161.45' (Dynamic Tailwater) 1=Culvert (Inlet Controls 2.21 cfs @ 3,13 fps) I:IUSERSIENGR14984icivil14984 Hydrocadl 4984 Brooks Science Center Post-Dev,-100yr-rev'I Type l!i 24-17r 100 yr Rain fall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 18 HydroCADO 8.01 s/n 001039 O 2007 HydroCAD Software Solutions LLC 5/1/2007 Summary for Pond 26P: Proposed Drain Manhole Inflow Area = 0.249 ac, Inflow Depth = 6.06" for 100 yr event Inflow = 1.76 cfs @ 12.02 hrs, Volume= 0,126 of Outflow = 1.76 cfs @ 12.02 hrs, Volume= 0.126 at, Atten=0%, Lag=0.0 ruin Primary = 0.68 cfs @ 12.02 hrs, Volume= 0A 12 of Secondary= 1.08 cfs @ 12.02 hrs, Volume= 0,014 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs, dt=0.01 hrs 15 Peak Elev= 163.44'@ 12.02 hrs Flood Elev= 169.00' Device Routing Invert Outlet Devices 41 Primary 162.43' 6.0" x 48.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 161.95' S=0.0100 ? Cc=0.900 n=0.013 Corrugated PE, smooth interior #2 Secondary 162.90' 12.0" x 35.0'long Culvert CPP, square edge headwall, Ke= 0.500 Outlet Invert= 160,75' S=0.0614 `' Cc=0,900 n= 0.013 Corrugated PE,smooth interior Primary OutFlow Max=0.68 cfs @ 12.02 hrs HW=163.44' TW=162.26' (Dynamic Tailwater) t-1=Culvert (Barrel Controls 0.68 cfs @ 3,47 fps) Secondary OutFlow Max=1.08 cfs @ 12.02 hrs HW=163.44' TW=161.45' (Dynamic Tailwater) t-2=Culvert (Inlet Controls 1.08 cfs @ 2.50 fps) Summary for Pond 27P: Recharge Sytem Inflow Area = 0.249 ac, Inflow Depth = 5.40" for 100 yr event Inflow - 0.68 cfs @ 12.02 hrs, Volume= 0.112 of Outflow - 0.67 cfs @ 12.04 hrs, Volume= 0.112 at, Atten= 1%, Lag= 1.0 min Discarded = 0.03 cfs @ 7.35 hrs, Volume= 0.053 of Primary = 0.65 cfs @ 12.04 hrs, Volume= 0.059 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 162.27'@ 12.04 hrs Surf.Area=277 sf Storage=478 cf Plug-Flow detention time=(not calculated: outflow precedes inflow) Center-of-Mass det. time=67.6 min( 810.1 -742.5 ) Volume Invert Avail-Storage Storage Description #1 0,00, 226 cf Custom Stage Data(Prismatic)Listed below(Recalc) 845 of Overall-279 cf Embedded =565 of x 40.0% Voids #2 159.95, 279 cf 47.8"W x 30.0"H x 6.25'L Cultec R-330 x 6 Inside 91 506 of Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 159,45 277 0 0 162,50 277 845 845 Device Routing Invert Outlet Devices #1 Primary 161,78' 8.0" x 11.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 160.02' S=0.1600'1' Cc=0.900 n=0,013 Corrugated PE,smooth interior #2 Discarded 0.00' 4.600 inlhr Exfiltration over Horizontal area 1;1USERSIENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-1€0yr-rev1 Type !l124-hr 100 yr Rainfall=6.30" Prepared by Rist-Frost-Shurnway Engineering, P.C. Page 19 H droCADO 8.01 s/n 001039 OO 2007 H droCAD Software Solutions LLC 5/1/2007 Discarded OutFlow Max=0.03 cfs @ 7.35 hrs HW=159.48' (Free Discharge) L2=Exfiltration (Exfiltration Controls 0.03 cfs) PrimaryOutFlow Max�0.64 cfs @ 12.04 hrs HW=162.26' TW=158.54' (Dynamic Tailwater) t -1=Culvert (inlet Controls 0.64 cfs @ 2.37 fps) Summary for Pond 28P: Proposed Drain Manhole Inflow Area = 0.404 ac, Inflow Depth = 5.03" for 100 yr event Inflow = 3.28 cfs @ 12.03 hrs, Volume= 0.170 of Outflow = 3.28 cfs @ 12.03 hrs, Volume= 0.170 A Atten= 0%, Lag=0.0 min Primary = 3.28 cfs @ 12.03 hrs, Volume= 0.170 of Routing by Dyn-Stor-Ind method,Time Span= 0.00-48.00 hrs,dt=0.01 hrs 15 Peak Elev= 161.46'@ 12.03 hrs Flood Elev= 164.70' Device Routing Invert Outlet Devices #1 Primary 160.21' 12.0" x 50.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 157.10' S=0.0622 T Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=3.27 cfs @ 12.03 hrs HW=161 AW TW=159.35' (Dynamic Tailwater) t--1=Culvert (inlet Controls 3.27 cfs @ 4.16 fps) Summary for Pond 29P: Proposed Drain Manhole Inflow Area = 0.654 ac, Inflow Depth = 4.20" for 100 yr event Inflow - 3.92 cfs @ 12.03 hrs, Volume= 0.229 of Outflow - 3.92 cfs @ 12.03 hrs, Volume= 0.229 af, Atten= 0%, Lag=0.0 min Primary = 3.92 cfs @ 12.03 hrs, Volume= 0.229 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 158.57'@ 12.03 hrs Flood Elev= 161.80' Device Routing Invert Outlet Devices #1 Primary 157.00' 12.0" x 157.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 153.00' S=0.0255 T Cc=0.900 n=0.013 Corrugated PE,smooth interior Primary OutFlow Max=3.91 cfs @ 12.03 hrs HW=158.57' TW=150.73' (Dynamic Tailwater) t-1=Culvert (inlet Controls 3.91 cfs @ 4.98 fps) Summary for Pond 3OP: Detention Pond Inflow Area - 0.989 ac, Inflow Depth = 3.58" for 100 yr event Inflow = 4,67 cfs @ 12.03 hrs, Volume= 0.295 of Outflow - 0.86 cfs @ 12.49 hrs, Volume= 0.295 af, Atton=82%, Lag= 27.4 min Primary - 0.86 cfs @ 12.49 hrs, Volume= 0.295 of Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5 Peak Elev= 151.45'@ 12.49 hrs Surf.Area=3,539 sf Storage= 5,989 cf Plug-Flow detention time= 172.8 min calculated for 0.295 of(100%of inflow) Center-of-Mass det.time= 171.3 min (960.9-789.6 } I:\USERS1ENGR149841civi114984 Hydrocadl 4984 Brooks Science Center Post-Dev.-100yr-revl Type 11124-hr 900 yr Rainfall=6.30" Prepared by Rist-Frost-Shumway Engineering, P.C. Page 20 HydroCADO 8.01 s!n 001039 ©2007 HydroCAD Software Solutions LLC 5/1/2007 Volume Invert Avail.Stora e Storage Description #1 0.00, 8,036 cf Custom Stage Data(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 149.25 1,940 0 0 150.00 2,450 1,646 1,646 151.00 3,181 2,816 4,462 152.00 3,968 3,575 8,036 Device Routing Invert Outlet Devices #1 Primary 149.25' 12.0" x 50.0'long Culvert CPP, square edge headwall, Ke=0.500 Outlet Invert= 148.75' S=0.0100 T Cc=0.900 n= 0.013 Corrugated PE,smooth interior #2 Device 1 149.25' 2.0"Vert,Orifice/Grate C=0.600 43 Device 1 150,00' 4.0"Vert.Orifice/Grate C=0.600 #4 Device 1 151,00' 4.0"Vert.Orifice/Grate C=0,600 #5 Device 1 151.50' 2.00'x 2.00'Horiz.Orifice/Grate Limited to weir flow C= 0.600 Primary OutFlow Max=0.86 cfs @ 12.49 hrs HW=151.45' TW=0.00' (Dynamic Tailwater) L1=Culvert (Passes 0.86 cfs of 4.70 cfs potential flow) -2=Orifice/Grate (Orifice Controls 0.15 cfs @ 7.01 fps) 3=Orifice/Grate (Orifice Controls 0.48 cfs @ 5.46 fps) =Orifice/Grate (Orifice Controls 0.23 cfs @ 2.58 fps) 5=Orifice/Grate (Controls 0.00 cfs) Summary for Pond 31 P: 6' "Downstream Defender" Inflow Area = 0.404 ac, Inflow Depth = 5.03" for 100 yr event Inflow - 3.28 cfs @ 12.03 hrs, Volume= 0.170 of Outflow - 3.28 cfs @ 12.03 hrs, Volume= 0.170 af, Atten=0%, Lag=0.0 min Primary = 3.28 cfs @ 12.03 hrs, Volume= 0.170 of Routing by Dyn-Stor-Ind method, Time Span=0.00-48.00 hrs, dt=0.01 hrs/5 Peak Elev= 159.35'@ 12.03 hrs Flood Bev= 163.00' Device Routing Invert Outlet Devices #1 Primary 158,10' 12.0" x 40.0'long Culvert CPP,square edge headwall, Ke=0.500 Outlet Invert= 157.10' S=0.0250 7' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior Primary OutFlow Max=3.27 cfs @ 12.03 hrs HW=159.35' TW=158.57' (Dynamic Tailwater) t---1=Culvert (Inlet Controls 3.27 cfs @ 4.16 fps) Summary for Pond LAKE: Lake Cochichewick Inflow Area - 3.830 ac, Inflow Depth= 3.24" for 100 yr event Inflow = 10.78 cfs @ 12.06 hrs, Valume= 1.035 of Primary - 10.78 cfs @ 12.06 hrs, Valume= 1.035 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs,dt=0.01 hrs/5