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HomeMy WebLinkAboutDrainage Plan & Calculations ,.iii' ;;. HAMILTON COUNTY SURVEYOR & CITY OF CARMEL '.:0. .......... I' ., ..\:\c,~, . .~.~:~~~', 4 I " ci~~ - .. __~ BOARDWALK SHOPS \',)<,r"" LOT 3, BLOCK 2, CARMEL SCIENCE & TECHNOLGY PARK ADAMS STREET I CARMEL DRIVE CARMEL, INDIANA DRAINAGE PLAN & CALCULATIONS 'Ii KEELER-WEBB ASSOCIATES C o7l.sulting Engine e7'5-,Rl-anTl.e'''s -SuTvey01'S 486 GRADlE DRIVE - CARMEL, INDIANA 46032 PHONE (317) 574-0140- FAX (317) 574-1269 KINA PROJECT No. 0507-024 AUGUST 30, 2005 REV. I~/~ ''i .> KEELER-WEBB. ASSOCIATES C on'SuLting Enginee7"S- Planners -Surveyors 486 GRADLE DRIVE - CARMEL, INDIANA 46032 PHONE (317)57~0140 - FAX (317)574-1269 Project BOARDWALK SHOPS Subject DRAINAGE SUMMARY Proj. No. 0507-024 Date 11/30105 By ALD Chk ALD SRS METHOD SUMMARy POST-DEVELOPED RUNOFF IOO-YEAR STORM lO-YEAR STORM 2- YEAR STORM 11.6 cfs 7.8 cfs 4.7 cfs THE REGIONAL RETENTION POND IS DESIGNED TO RETAIN THE DIFFERENCE BETWEEN ACCEPTING (ON-SITE lOO-YEAR POST -DEVELOPED RUNOFF) LESS THE 0.24 cfs PER ACRE (REQUIRED FOR THE WR FERTIG DRAIN). THE IMPERVIOUS AREA ON THE SITE AS DESIGNED IS 69,4 %. PIPE CAPACITY ALL POST-DEVELOPED STORM SEWER IS DESIGNED FOR lO-YEAR CAPACITY USING NOMOGRAPH FOR REINFORCED CONCRETE PIPE. CUMLATIVE AREA(S) RUNOFF NW 0.11 efs 7-N 2.66 ds 6-NE 3.74 ds 5-E 4.25 efs 2-SW 2.53 efs I-SE 7.76 efs PIPE DESIGNED CAP ACHY HGL (1) 12" RCP @ 0.50% 3.0 cfs 839.4' (1) 15" RCP @ 0.45% 5.1 cfs 838.9' (1) 15" Rep@0.46% 5.1 cfs 838.6' (I) 12" RCP @ 0.42% 2.9 cfs 837.6' (CROWNS MATCHED) (1) 15" RCP @ 1.28% 8.0cfs 836.9' THE EXISTING UPSTREAM STORM SEWER ALONG ADAMS STREET CONVEYS THE POST- DEVELOPED to-YEAR STORM EVENT. IT WAS BUlL T ALONG WITH THE INFRASTRUCTURE OF CARMEL SCIENCE & TECHNOLOGY PARK. PER NOMOGRAPH 102'-24" RCP @0.5% CONVEYS 17 cfs THE EXISTING DOWNSTREAM STORM SEWER ALONG ADAMS STREET CONVEYS THE POST- DEVELOPED lO-YEAR STORM EVENT. PER NOMOGRAPH 272'-30" RCP@0.5%CONVEYS 3lefs THEREFORE, THE RUNOFF FROM TIllS SITE WILL BE EFFECnVEL Y CONVEYED BY THE PARKS STORM SYSTEM. (upSTREAM (17 cfs) + SITE (7,8cfs) = 24.8 efs OK!!! 1 .J ~/ Q '" ti~ - \0'___ -- \I ____ v___ /' v ____ ./ 9:1' FROPOflEO BUIL.DlN:;, 163' ----- --- SANiTARY MANHOLE .. ;H.D Sub-Area Identifier l-SE 2-SW 5-E 6-NE 7-N NW BOARm'IALK SHOPS POST-DEVELOPED RUNOFF Hamilton County, Indiana Sub~~rea Land Use and Curve Number Details Land Use Paved parking lots, roofs, driveways Paved; curbs and storm sewers Woods - grass combination (good) Total Area I Weighted Curve Number Paved; curbs and storm sewers Woods - grass combination (good) Total Area I 14eighted Curve Number Paved; curbs and storm sewers Woods - grass combinat_ion (good) Total Area / Weighted Curve Number Paved parking lots, roofs, driveways Paved; curbs and storm sewers Woods - grass combination (good) Total Area / Weighted Curve Number Paved parking lots, roofs, driveways Paved; curbs and storm sewers Woods - grass combination (good) Total Area / Weighted Curve Number Woods - grass combination (good) Total P~ea I Weighted Curve Number WinTR-55, Version 1.00.08 Page 1 Hydrologic Soil Group B B B B B 8 B B B B B I3 B B Sub-Area Area (ac) Curve Number .083 98 .374 98 .332 58 .79 81 .535 98 .164 58 .7 89 .092 98 .035 58 .13 87 .083 98 .112 98 .053 58 .25 89 .558 98 .128 98 .117 58 .8 92 .156 58 .16 58 8/1/2005 9:51:10 PM " ,-- ALD Sub-Area Identifier/ I-SE SHEET SHALLOW CHANl:JEL 2-SW SHEET SHALLOW CHANNEL 5-E SHEET SHALLOW CHANNEL 6~NE SHEET SHALLOW CH1\NNEL 7-N SHEET SHALLOW CHANNEL NW SHEET SHALLOW BOARDWALK SHOPS POST-DEVELOPED Rl~OFF Hamilton County, Indiana Sub-Area Time of Concentration Details Flow Length (ft) Mannings's Slope n (ft/ft) 100 62 64 0.0100 0.0100 43 100 208 0.0100 0.0100 20 55 268 0.0100 0.0100 48 74 376 0.1000 0.0075 95 80 456 0.0075 0.0075 95 103 0.0075 0.0150 WinTR-55, Version 1.00.08 0.400 3 0.400 3 0.400 3 0.400 3 0.240 3 0.240 3 Page End Area (sq ft) Wetted Perimet er (ft) Velocity (ft/sec) Time of Concentration 4.000 Ij.OOO Travel Time (hr) 0.488 0.008 0.004 .5 0.248 0.014 0.014 Time of Concentration .276 4.000 0.U5 0.008 0.019 Time of Concentration .162 4.000 0.10e 0.012 0.026 Time of Concentration .146 4.000 0.349 0.013 0.032 Time of Concentration .394 0.349 0.014 Time of Concentration .363 1 8/1/2005 9:51:10 PM ALD BO}\RDW.IU.K SHOPS POST-DEVELOPED RUNOFF Hamilton County, Indiana Sub-Area Summary Table Sub-Area Identifier Drainage Axea (ac) Receiving Reach Time of Concentration (hr) Curve Numbs r I-SE .79 0.500 81 Outlet 2-SW .70 0.276 89 Outlet 5-E .13 0.162 87 Outlet 6-NE .2.5 0.146 89 Outlet 7-N .80 0.394 92 Ou.tlet WiJ .16 0.363 58 Outlet Total Area: 2.83 (ac) WinTR~55, Version 1.00.08 Page 1 Sub-Area Description 8/1/2005 9:51:10 PM -. ALD Sub-Area or Reach Identifier SUBi\REAS l-SE 2-SW 5-E 6-NE 7-N NW REACHES OUTLET BOARDWALK SHOPS POST-DEVELOPED RUNOFF Hamilton County, Indiana Watershed Peak Table !?eak. Flmv by Rainfall Return Period 2-Yr 10-Yr 100-Yr (cfs) (efs) (etsl 0.90 1. 65 2.63 1.57 2.53 3.71 0.31 0.51 0.76 0.67 1. 08 1. 58 1. 72 2.66 3.81 .00 0.11 0.27 4. 70 7.76 11. 61 WinTR-55, Version 1.00.08 Page 1 8/1/2005 9:51dO PM -. WinTR-55 Current Data Description --- Identification Data --- User: Project: SubTitle: St ate: County: Filename: ALD BOARDWJU,K SHO rs POST-DEVELOPED RUNOFF Indiana Hamilton C:\SDSK\PROJ\bordwalk\POST-BOARDWALK.w55 Date: 8/1/2005 Units: English Areal Units: Acres --- Sub-Area Data ~~- Name Description Reach }\rea ( ac) RCN Tc l-SE Outlet 0.79 81 .5 2-SW Outlet D.7 89 .276 5-E Outlet 0.13 87 .162 6-NE Outlet 0.25 89 .146 7-N Outlet 0.8 92 .394 NW Outlet 0.16 58 .363 Total area: 2.83 (acl --- Storm Data Rainfall Depth by Rainfall Return Period 2-Yr (iD) 5-Yr (in) 10-Yr (in) 25-Yr (in) 50-Yr (in) lOO-Yr (in) l-YL (in) --~~~~~------~---------------------------------~~~-~-~--~------------~-~-------- 3.0 3.8 4.3 4.9 5.5 5.9 2.6 Storm Data Source: Rainfall Distribution Type: Dimensionless Unit Rydrograph: Hendricks County, IN Type I I <standard> (NRCS) WinTR-55, Version 1.00.08 Page 1 8/1/2005 9:51:10 PM r. ALD BOARDWALK SHOPS POST-DEVELOPED RUNOFF Hamilton County, Indiana Hydrograph Peak/Peak Time Table Sub~Area or Reach Identifier Peak 2-Yr (cfs) (hr) Flow and Peak Time (hr) 10-Yr 100-Y!'" (cfs) (cfs) (hr) (hr) by Rainfall Return Period ---~~-----------~------------------------------~~~--~~--------~--~-~------~------- SUBAREAS l-SE 0.90 1. 65 2.63 12.20 12.17 12.16 2. -sw 1. 57 2.53 3.71 12.06 12.06 12..05 5-E 0.31 0.51 0.76 11.98 11.98 11.97 6-NE 0.67 1. 08 1. 58 11.96 11.96 11.96 7-N 1. 72 2.66 3.81 12.12 12.11 12.11 NW .00 0.11 0.27 nla 12.14 12.12 REACHES OUTLET 4.70 7.76 11. 61 WinTR-55, Version 1.00.08 Page 1 8/1/2005 9:51:10 PM I' -II I I I I I I I I I I I I I I I I I Refennce: City of. Indianapolis Stonnwater Design and Construction Standards .0001 .. N Q 0 II C = 0 ~ w a. 0 ....I '" '" I.Y ~ :]: u ~ z U z z w ..u Q" <:J Q" a: ~ .0( 0 :z::: ~ = I.Y Q I- u.I :l! < is .0002 .0003 . OCOA .0001 .0005 :;I.OC02 .00lXI .otIOt .oooa .OOOS ,0C0i .eXIt Page 319 N 0 .002 9~' ~ - u .003 ~ ~ .004" = a: :a 0 ~. .oca loa. _ ~ tift- ~ W ,...... Q. w .010 0 ~ ~ z >- I- U o ....I 1.1.I :> .020 SAMPLE USE 24" dia. eMP. 2'iL.llope yields 11cfs @ 5.2 FPS WlkJcity (n - 0.024> V.Illues PM Manni",'s equl'tion a.. (1~J AR'I, s.% n This tabla can be cal1V0rted to 0~1'IO' on" values by ~ng formula: 0' nt 02 n2 !e 20.0 30.0 40.0 30~