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HomeMy WebLinkAboutDrainage Calculations fY' . ..~.,r,.",il -,' . "".1) ~-, ..... I I "1 ~ t !, ,'. Drainage Calculations Meijer #130 - Retail Outlot "A" 1424 West Carmel Drive Carmel, Indiana 46032 Job #: TER.001 Date: 09-27-07 Prepared by: Eric A. Gleissner, P .E. Reviewed by: Brian Cross, E.I. ~~ l*~ ~\ f "V' He. \ -.vI IPEt~ · ~ ,\ STATEClf ,JRj ~:...~~. ~~~ '''3'". ...u...~~~~ --- ~..~~V~ Civil h11.1] GROUP.IHe 643 Massachusetts Avenue Su"ite 200 Indianapolis, IN 46204 Phone: 317-423-3305 Fax: 317-423-3306 T ABLE OF CONTENTS Section I: Report A. Project Title B. Project Description C. Design Method and Criteria D. References E. Existing Conditions F. Proposed Conditions Section II: Appendix A. Site Information B. Existing Conditions (exhibits, calculations, etc.) C. Proposed Conditions (exhibits, Hydraulic Calculations, Rational Method Pipe Sizing, etc.) A. Proiect Title Meijer #130 - Retail Outlot "Aft (1424 West Carmel Drive) B. Project Description This project is located on the northeast corner of the intersection of West Carmel Drive and Pennsylvania Street within the City limits of Carmel. The overall site is approximately 1.73 acres in size; however, the proposed construction will be disturbing significantly less as much of the existing pavement will be saved. The site is currently used as auxiliary parking for the existing Meijer store. The proposed improvements will consist of a 10,600 square foot retail building with the associated parking and utility infrastructure. These plans and calculations analyze the existing and proposed drainage patterns and will show that the proposed improvements will have no negative effect on drainage conditions In the area. The existing land uses adjacent to the subject site are as follows: North: West: South: East: Commercial (Meijer Store) Commercial (under development) - Pennsylvania Street Commercial - West Carmel Drive Commercial (Meijer Gas Station) c. DesiQn Method and Criteria 1. Soil Tvpe: Soil maps from the United States Department of Agriculture, Soil Conservation Service, identify Brookston Silty Clay Loam (Br - 40% Site) and Crosby Silt Loam (CrA - 60% Site). 2. DesiQn Storm: The 2, 10 and 100-year storm events have been analyzed for both the existing and proposed overall conditions. The Rational Method was used to analyze the site. 3. Overall Watershed: Existing storm inlets on-site intercept the surface runoff and route it to an existing dry detention facility located along the southern boundary of the site. That detention pond then outlets into a much larger detention pond on the south side of West Carmel Drive. The larger pond outlets into the WR Fertig Regulated Drain. D. References 1. TR55 Stormwater Design Manual. 2. Hamilton County Soil Survey. 3. Highway Extension and Research Project for Indiana Counties (HERPIC). E. ExistinQ Conditions The existing property drains via overland flow where surface runoff is intercepted by existing storm inlets on-site and routed to an existing dry detention facility located along the southern boundary of the site. The detention facility outlets into a much larger facility south of Carmel Drive where the stormwater then drains into the WR Fertig Regulated Drain. The existing site is currently used as auxiliary parking for the existing Meijer store. The site is covered mainly with asphalt for parking and a small amount of green space and landscaping. The Rational Method was used to analyze the site in the existing conditions. The following table summarizes the existing discharge rates for the existing site during 2-year, 1 O-year and 1 DO-year storm events: DRAINAGE BASIN RUNOFF (CFS) Basin EX1 2- YEAR 6.41 cfs 10-YEAR 8.4 7 cfs 100- YEAR 12.62 cfs Table 1: Pre-Improved Conditions F. Proposed Conditions The proposed drainage patterns for the site will remain identical to the existing conditions. The proposed building will be constructed over existing asphalt. Additional green space and landscaping will be added; therefore resulting in a slight reduction in the overall runoff coefficient for the site. The maximum 100- year discharge from the improved site was effectively reduced from 12.62 cfs to 12.31 cfs. The release rates from the improved site will be slightly less than in the existing condition; therefore, there will be no negative effects on drainage conditions in the area. The following table summarizes the existing discharge rates for the improved site during 2-year, 1 O-year and 1 DO-year storm events: DRAINAGE BASIN RUNOFF (CFS) STORM PR1 EVENT 2-YEAR 6.25 cfs (Proposed) < 6.41 cfs (Existing) 1D-YEAR 8.26 cfs (Proposed) < 8.47 cfs(Existing) 1 DO-YEAR 12.31 cfs (Proposed) < 12.62cfs (Existina) Table 2: Improved Conditions Improved 1 DO-year discharge 12.31 cfs < 12.62 cis (Existing) . . SECTION II: APPENDIX 1 o a: - ---------.. <( z ~ ~ Z 2: w.J CL Hamilton Cou Unincorporated 180080 126TH ~ "" ~7 Q} $' Q &' 39~ 58' 07. 5" 86~ 09' 22.5 " City of Carmel (Extraterritorial Jurisdiction) 180081 Hamilton County Unincorporated Areas 180080 APPROXIMATE SCALE 500 0 I----i I----l I----i 500 FEET I ~ NATIONAL FLOOD INSURANCE PROGRAM FI.RM FLOOD INSURA.NCE RATE MAP HAMILTON COUNTY, INDIANA AND INCORPORATED AREAS (SEE MAP INDEX FOR PP.NEL.!:) NOT PRINTED} NUMBER PANR SUfAX 11!;OOS;1 0i01 ,sooeo rxl07 ,"""'" <li01 N~-Il to ~':"..~ ~ ""U~AO~f! sfI~ bolib... Ihwi(j h USOO WI'Il'Il'I ptltrJrl; roMp ,."l'dl:l.r':'I: the OOMMU"-lITt ~uMOEJl: ll!"to'.-\ot\ I~"'" Ihr;o~:<J lIII w.llQ 0;;11 i1111,lr4l11'M'II ~~li~\kJn~ I'"' 11111 lJ'...mj.~~ CC1mI'!"UI'Iit~' MAP NUMBER t8051C0207F EFFECTIVE DATE: FEBRUARY 19. 2003 Federal Emergency Management Agency This is an official copy of a porti-an of the aoove referenced Rood map_ It was extracted using F-MIT On-Une. This map doos not re1iect chang.... or amendments which may haw been made subsequent to the date on the t~tle ~Ot;k.. For the latest product information about National Flood Insurance Program ~ood maps check the FEMA Flood Map Store at WNW msc.t.>ma~gov Soil Map-Hamilton County, Indiana 572400 o <Xl <Xl ;t ... ... 2 ... '" ... ... 572000 572080 572160 572240 572320 572400 572480 572560 N A o 50 200 100 200 Meters 3UO o 400 BOO Feet 1,200 USO\ Natural Resources ~ Conservation Service Web Soil Survey 2.0 National Cooperative Soil Survey 9/2112007 Page 1 of 3 Soil Map-Hamilton County, Indiana MAP LEGEND Area of Interest (AOII ro Very Stony Spot D Area of Interest (AOI) t Wet Spot Solis Other .. D Soil Map Un~s Special Une Features SpeclarPolnt Features :;... Gully ~ BlovlOul .. . Short Steep Slope 181 Borrow P~ ...."..~ Other * Clay Spot ~ Political Features . Closed Depression Municipalities X Gravel Pit . C~ies .. Gravelly Spot r;g] Urban Areas @ landfill Water Features A lava Flow . Oceans ~ Marsh ~ Streams and Canals ~ Mine or Quarry Transportation ~ Rails @ Miscellaneous Waler ....... Roads @ Perennial Water Interslate Highways """"" v Rock Outcrop US Routes .......... + Saline Spot m Stale Highways . Sandy Spot ~ local Roads """" - Severely Eroded Spot fII'" Other Roads ~ Sinkhole ~ S fide or Slip jd So die Spot - Spoil Area 0 Stony Spot MAP INFORMA liON Original soil survey map sheets were prepared at publication scale. Viewing scale and printing scale, however, may vary from the original. Please rely on the bar scale on each map sheet for proper map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: hllp:/Iwebsoilsurvey.nrcs.usda.gov Coordinate System: UTM Zone 16N This product is generated from the USDA-NRCS certified data as of the version dale(s) listed below. Soil Survey Area: Survey Area Data: Hamilton County, Indiana Version 6, Sep 4, 2007 Date(s) aerial images were photographed: 1998 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident USDA :i1Iiiiiiii Natural Resources Conservation Service Web Soil Survey 2.0 National Cooperative Soil Survey 9/21/2007 Page 2 of 3 Soil Map-Hamilton County, Indiana Map Unit Legend ,Hamilton C,9urity,'lndiana(IN057} i. ~ fIJIa'p;Unit SYrmbol M<lp'Un.jt Name . ~ Ac[esi~,AOI .Pi,!rclj!,nt\;i.f'AOI Br Brookston silty clay loam 21.4 37.1% f-- - .- erA Crosby silt loam, 0 to 3 percent 34.6 59.9% slopes MmB2 Miami silt loam, 2 to 6 percent 1.7 30% slopes, eroded I Totals for Area of Interest (AOI) 1- 572J 100.0% I USDA ..,.-= Natural Resources Conservation Service Web Soil Survey 2.0 National Cooperative Soil Survey 9/21 /2007 Page 30f3 L>- a cr ~~ ~~ -'z ::-!a:; >-1= ~~ 2'''' 5~ VJt, I~W 2=: l/)- j ~ ~. /on ~ln :f "4.4.i. 862.1,/ 'U , = '; "- o "A.i'il-' 0,- 1:.3 ie~'_,:"5 (7, ,~ ,,; ~ 3 ',,- o o b o L i~ ~ ~" ~ 'I I@ ! / n--r- ;-L I -'- -J- -/- ~- \ -~ -----r ( ,; ~t~~/ 861,=C I ~~, HO'M MlV4 J STIl ~i2<4 'd ~J89'5.1'48"~:. - Il'19.53 ,'."'~ I \. 1:3410.7'9' I ,~~~ ~..iJ <)~ !:~" ,.~ -1''' ICY . -f'."" ~ !..o " ~Z I L ;:. F1ou-m~~W_ ~m r!~-' : T.C -( 859.71" ~_ 'T ~,nM == '= - I .cLEV. ;=ooo.aJ MAG, HA'L s~.r I +- ==c= ~ ,{i~ --.&.l- ~.- /' _ _ I. _ _ -So'J- ~ _ 1.73 ACR'Lp /-- =F - tt ...4># =f ~" . --, ~ DcJ":",! ! - --: POOl "'{!', -If -=,. ~u,.g.~.o "0 # MAG h,',ll.. Sf' . ". '.... ~ /J ~1J.~Ii\'L[r I STt..= W7~ 50 D ---o'fTme:~ I II - - ~.'.".\:\'~9" &, :7C .<', 1 fL- .,:_~ ~ i '..1<<':- ~ ~ I =*= LLh ') SrDFi'I,.l ",,,"NHCiE ~.~ ~7~~~ J:> ,{I)[lJ> ) \,,~ =-_I~~+ jI- ~ -;= ~ I _~ .1 SA I dI~, _~+----~-' J '-860~ _ Li}, i/ i1 ~ cl, ~E~-1 - 1, ~ - .Z\- L-.! j - I -~^ T"''".16 f,dL },,;!'{'~~~~J," 9;"f' -, I ....... ~ ,/ : ~A9...., -- -- \_~- I \ """" ! I ~ ~ FOJND S":"ORM 1~~L..tT I \ ~m il72':"~ .' \_t,c. - a5B.67 " I / I ~ I ~ ~ S o D '1 fTi ",'" '" "-~. ~~ ~.;, ,,'l tS-~ <b e{-~ i. -:<.10 4" <t -859 ..., w::> U-I 10 d, I:~I '" ! R=200, 0 L=61.4r i T':J 1'1 = 30 9-i #177 Q/+' "seer::?' \::"w ~lc' "" ----- ----- -------.. -------.. ---.... ( I I I o NOR1H !O UG:tO ~---- ~ LAND DESCRIPTION {IN FrrT) ~ hd1 _ 21:1"'- P",Il'!, (\';,"rl IJj SOL't1 rWI~f QI..'/\,Rl]!1l OF filE s.t')L;'I"IIJiAs'r Q~""Il:TI~H lW SH;,lGX l!l, TlJ'w:fSHU' 1i NOR,Tti, ~.GE:! E.>Jil IN H.~10!,; COU\l'Y, [NDIANA. ~R.!: ......1'tTIC'..'t..tJU. Y D3SCRi11EO AS, FOl.LOW5 OOMMEK<,:i)!G ",'~' 'l"IU! SOl.-[i l'J.'I:.5T (.1.l'R.."ll:R r;r l'ln' S;'J1,fl1lWHS'r OL'Aftmn: 01"11 fit SLK;'rm~5l'QUII.R'n,R.()l) 5111.."'fl0J.j z~. 'j'OWh"SIIIP 1 ~ ~'OH.m.Il.4WGLt' JlJo.H; 'j"rllill,'\:Ji l.\X nm W[!.ST .I.lJo:C orT1-J:r\ SU\JrnWEST QI.,i'II.RTCROr S..uD SOtlTHC....sr (,Jl'."ltillRI\:O.RTH OQ OEG~ 1,J ~'-'nS 01 SEc.a:,.'D.s Vt-"[ST ASSl.,1nBil SRI\.RIJo,"C'r '~~,"I'9 FIEr;; TlEI.'C~:>.I(lR7H B~ 1>".(jRh.i'"~1; =-4 MII\IjTJ"~'i '.II ~r:{'.n'\,il.'J! .t:A:n i I., I ri'~.,t T(j ('.HI'. POL"lf OF 1-lJ.:.t11r..'KIN(f (JI' T~:S nl:'5l'PJ"rl~~. 'nw..\\;Jl::</URTIJ (/1 m'{:;rU:I:.s 1~ MI~'l.rl:S 13 S1K.'Qlo.'u5 WESt lJ~.~~ 1''i:Lr; TI fI>~U: r-.;UIolII! ~9 rn'(1RJi.Ii.$ ~4 MIl'll. TJ!S ,g SH.':U1'."D.'i I:AS'f ~016.7~ ;~I:I!"r; lTII:lt,'(;I~ :StliJTII UlI DWRm!$ 10 M::O.-UTES,,'7 SEOO"IDS [....SOT m.j.~ rnE.1 Tu.... r ANGl!.NT CL'R V[, W1TJ-t A 1VlD11JS. OF 100.00 PEEr A."1tl r\ CE..,'1"A.'\t......~G:.E OF 11 DEGEE.I!:H J.m."UTE.6 ~4 S!C(No:\.: TliENCE O~"J"fn.: II..ltCOf SA.Il) C1:~y~; GI.W ~'-";r,T J-(!'.lIt; A. CttOfll) 1*;""Jli:-lfi 5(J,':T.H lUl1IHiltl-.:J.:'s!7 M~L"nt5 j~ SIx:m..l)$ WI':Sl'(il,le Jl~~r: TllhXL.'t~SI.lLrnl 17DI-:GIU'IOS 15 },.fINl..n~ 17 !!o1':C;C,llt,";)S \!.iN;-r 11.1-1 n:l~r: TIII-,Xo; XDRTl170 m:-Olu.:J.tS ~ :Mil'..U.!'J~ H 51.t:.()t\lj~ WHiT 3~H6 rc.m: TO TH! fOl"l--i or ~:G[l\1>'L\jc::., 'lH1'.,"'-lXII\l) L,.J ACm. Mr.>RnOR; LESS. ~c.o. .I. p~ !tUllTA.AY $rEPI LATEIW. w/a.L\NCXJl ---IlIJJLDlIiCl~l.Hi - --11- -- F'fKf'O:I:Ell:!l'TlRM ~ WA1<<J:T - ~ - EUSWl[) EA:aIDll =-.RtPO$!tI"'IQ1T-C;a:'-'''AY - - - -F'RIS>QTY BDJI'DMY .ti., EXIS~~ p.olil'!HPQ.E ':C- DCl!Dj~ CMffl€MI ElEC'JRC -(,-(,-.ExlSa;fjjClAS -E- Em11tolG;J..&:CTFtIC - ~ --- - ~- ERlTl.lO ceioITOl.>>I D..tiJ.E... l'.IIW>l.JilX .. u1'1J1Y ~EHT -..- a-Pi'IoP05ED W.ATER SER\oICE 8,5.L I!IUIw~ SElBI.wI l..N!: -".~ nJ$llND .JNUfAJI'l' SE\IIEjR "-~C;y...ttR"JtI'F DEVELOPER: ~~ROtJ..fI:[ALmATE 'Lft5 III)1~Tt P~A'f, !lilt I~ INDlAN.APD..1.J,. IN o+e1BO (71!:5) (>>....~ ENGINEER: 0"- SITE GRIl.iP.lPC. $+3 w.S!:.ACtiI,J~ ....\e4I[ '!i.l1J[ IO!l- ~~~I<lI.'Nir.~. SURVEYOR: M1l11Jf~HGttt::, 114l!1 ~ER 11'l\W ~~r^ ~c ~ ;::0 u)!{) I:.l.... _H::l~ r;jtlg c.:: >:<T ~~< fS::;,:2j g;]~a ~Z ::r:........ ;Q1=,s 6251:.l ~&:~ U]l!)U ~g ON :r: !- ~i - :1 ~ U~ t.:i~ ! 3;.s ~ ~~~ is!I~ & 0"'" 0::1~~ (!)!1 E :::l ...t:ri , ~~~~ I...;ii:!'v CJ) 0 l; .--. ~ ~~ ~ S~..5- <3$ l! ..~,~\~~?L:W:~.~. i:t~.~~ST~;~~;,\ ~.I PE~o.DSaM \-t: ~ ~ \ $'T"'TSQ~! i ~ \:"~cIA-,.l.~"Zi r.t~tl'~:'~j~~~~:~"'" t~ tu /)./~~ ~_ "'~. 0912QI07 OWN BY: SSC CHKD. BY: EAG SCALE: 1" ~ 2Q' DATE' Ion In" -< E-< o .....:l E-< ::J~N o M o .....:l qlO _-1<T ......We::: ~~~ (il ~ Cl O::U~ I ti-1" O~r.:l ~<t~ =I:I:~U e&::;.... CiJ ::3 ~ ~ PROJECT NUMBER TER,OOl DRAWING NUMBER lEX 1 SHEET 1 OF 1 Cf) z o - t: Q Z o U C Z ..... E-< (J) X ~ EXISTING CONDITIONS Impervious Area = Impervious Area = Open Area = GraveVStone = Runoff Coefficient 0.90 0.85 0.15 0.85 Curve Number 98 98 68.8 87.4 "Rooftop "Pavement "Open Space (Fair Condition) Srookston Silty Clay Loam (Sr - 40% Site) Type "S" Soil Crosby Silt Loam (CrA. 60% Site) Type "C" Soil ON SITE IEX1) Impervious Area Rooftop (ft^2) o Impervious Area Pavement (ft^2) 69829 Open Area (ft^2) 5466 Stone (ft^2) o Total (ft^2) 75295 Total (Acres) 1.73 Composite Composite "CN" "COO 95.9 0.80 Overland flow seg. I Shallow Concentrated Flow Basin Length S 11 T_t Length S Paved/Un Vel. T t Tc nome (ft) % (min) (ft) % (P or U) (ft/s) (n~) (mi"n) EXl 100 0.82 0.011 2 70 0.82 U 1.46 1 5 CIVIL SITE GROUP, INC. EXISTING RUNOFF CALCULATION. RATIONAL METHOD 09/27/07 MEIJER #130 RETAIL OUTLEOT "A" PROJECT No. TER.001 PROJECT NAME STORM FREQUENCY DESIGN YEAR 2 LOCATION INLET ACRES COEF. SUM TIME CONC. (min) INT. "Q"- from to AREA sub total "CO CA CA inlet drain total "I" CIA EX1 1.73 0.80 1.38 5 5 4.63 6.41 STORM FREQUENCY DESIGN YEAR 10 LOCATION INLET ACRES COEF. SUM TIME CONC. Imin) INT. "a" = from to AREA sub total "C" CA CA inlet drain total "I" CIA EX1 1.73 0.80 1.38 5 5 6.12 8.47 STORM FREQUENCY DESIGN YEAR 100 LOCATION INLET ACRES COEF. SUM TIME CONC. minI INT. "Q"= from to AREA sub total "CO CA CA inlet drain total "I" CIA EX1 1.73 0.80 1.38 5 IJI' 5 9.12 12.62 , PROPOSED RUNOFF CALCULATION - RATIONAL METHOD MEIJER #130 RETAIL OUTLEOT "A" PROJECT No. TER.001 PROJECT NAME STORM FREQUENCY DESIGN YEAR 2 LOCATION INLET ACRES COEF. SUM TIME CONC. (min) INT. Q"= from to AREA sub total "CO CA CA Inlet drain total "I" CIA PR1 1.73 0.78 1.35 5 5 4.63 6.25 Ji1 II!" II STORM FREQUENCY DESIGN YEAR 10 LOCATION INLET ACRES COEF. SUM TIME CONC. (min) INT. "Q"= from to AREA sub total "C" CA CA inlet drain total "I" CIA PR1 1.73 0.78 1.35 5 5 6.12 8.26 . " , 'I :11 STORM FREQUENCY DESIGN YEAR 100 LOCATION INLET AC tES COEF. SUM IIMI CONC. (minI INT. "Q": from to AREA sub total "CO CA CA inlet drain total "I" CIA PR1 1.73 0.76 1.35 5 5 9.12 12.31 " Ii Page 1 ",J;;~kl ~{~~l~ \." "/C,~ ~ g-- _ ~ .eoA!I'IL!TI"r~!!. :-I __ ~ ~"''''''''''''''''Yiff __ _" E.~:"-ow~ ~TC>E:lOO IJ.":'- " _,...-_~ /" ..-- - - ~ "... J..:O$~ r- -... ...---- ........~ "-'880 ~I 1__-8b.- n ~ - , r u ----~ - -~ 1, yf ."~~,,--- ---- I !l 130.33' 11 DEVELOPMENT SUMMARY [,'lilliE' .,~ I I ,T",~I~l~ I.j r I ~jl 2/';:, ~ I" I i.: Il , I I ,I' rill: i : !\ ~: 'I' ;r; ! I r, I !I )( ',.11 ,) I[ ~, ,I; /' 1III1 f,"111 I, I [.;/f I ~n-J~l '.:lr1111 . p ~ 1~1(jl::: I I \.~ ." -}--l-'-'" I i I I ~ ! I \ !./' \ t ~ ::,... f-..:o i5>~ I . v'( l"""%~.;:...I .-!- A-l ~~v~ (' \ ___E~n'lG6JQ-l:"'I'P!o!ill I , \ ~n::::-- 11-N~.1fI'I'1H : i3 \ .::::n:L - - I ~\., ~ ---- ~"'"":.>>= ~- - _ - - - - - -=-=- ! -.'-.. I ',~-e:.:Ir.:'Ii'tOFlIGi-HT~'-WAY ......"'--1\ -- ~ ---- --- --'"------- - ---- ~ F ~ I _L-( ~---b-= . 861 --r ~i - :18 U7 .8 S r..>~ ~ l:3"'" ~ ,",0 ~g~~ 'o~~ C::<~:g CJ).:!l.!i:;:l ~]i~ U)~:?: ....,~:ij ~ ~~E~ (..)~ it o NORTH :fI) 0 10 20 ~..........,j~ r:.:l !;; E-O UJLf) "'..... ~r.lg ,,"!;)g 0.; -<t ...:i>- ;;:~<( ~~~ ~<~ :I:CL;~ ~~'~...:i' zo r:.:lil. UJLf)U ~g ON :I:: E- n I -:~;- ." /~n1 " /-~u ~-'-;- ./ ~~ \ =-~ GROSS SQUARE FQOT~GE: 01Q,600 S.F. TOTP.L SIT!;' ~.. 1.73 AC+I- ZO~II"IG = OMiM. OLD lw':ER1DIANI ME1JERZOHE FRONT SE:TaACK = 3~ FEET; SIC::IREAR SETBACK. "" 5 FEET BUIU::Jli'IIG CCJVEAA-G,!; -14% P-A.RI.(I~IO .sPACES P~OVIDED. SA.. 2 H.C."OO PAFOO~O SPACEO .REQUIRED =27 {1!400 G5F~ ANrlCIPATED CONSTRUCTION ST~RTICCM.LET'ON CATE MARCH, 2008 , JUt..~. 2006 '!5>~' '0 J "', / I C IN FEn) I ~...:h _ :mil: LAND DESCRIPTION M ~,;t iJl.tlll~.sIJV'l1IWJ'S'( ou ,o,fl'fIir't orTHH 5l1UII TI'~"'~'J Ql:,o, ftfLf-llll' 5U:'JIOl'O;0. !O',I,'N5~1i' li t\I.1UH, R......\'iJ! 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PLAN NOTES: o (f' S1RAlC*iT 0jHa:l:E1'! cu:tll @ CCNBlNEb 0JtllEl ,I: 'l'(,I,LJo( @ (;meRElY SOCWAllC @ "'5i?HAL.i,,.^~r @ ~P"''oUIOlT G) TIlAS-l ~R[ (SEE M:1:li. PV.NS~ o P~I"O SP,II(:E COJHT ~ E-- o ....::i E-- ::>~N O~8 ....::i CI \0 "":j...:i"'" <I:; i:;l <( E--;?; ~ ~~CI ~u;z; I t-'___ UJ...:i o~"" :3<t~ =#:~U ~~ r:il ~ ~ ~ .<"Jtl~CFOP rj) Z o ...... b CI z o u CI IJ:) r.fJ o P-t o ~ P-t ;tOlJ'(l~1~1>f~ -~.....,~. I l-. (Ii!l!,fiAM..~O..:I!JF""I "'e-A5~,!I:l . OUI.W.... ~ ( [I 0' '{ '~ i Irt3"No..nO.wI-ld.E" ....f 'e.~.''' LEGEND: c.o. , ~OPO:S;ED !WtTAA't' ~ ~TEfl.l.L W/(';LEJ.NOUT - - -OOI.[)lt.lQ sE1iI~ UI'CE - -- Ij-- -..~ $fORM 5lMtR 'II'AlIILET - - ~to:laTHO~ PRClPClSEl:l R1G1T-llf-.....'\" - - - -f'FtOPUtTr I!lOUNCMt'f 'tL- cusmIJPClIERPCl! f).~ - o.wit4o O\ER~ ELEC'TmC -,.- Q- DlSTttCG.li$ L- -E- ~G8...f:CTRlC -- ,-- - OO!!- Oo:\S~Q ~NTOUIi1 O.&IH. DR'Aflo\Gi .. UlUTY ur.!EI.lEI'IT -.-.-~II!I"''!USmvlOl!: 1Ii.S.L IIJI.-.o.<~ SEi'!l~ UN! -;(;1;- ~;i.w1I1rr:UWVt ,,--i/j~[)(l5nHGWArERlUil"l -Ii~ n' ....~.: - " --,'" " ~ .,~., _~ n ~<l, U ~ ' '''WEST CARMEL DRIVE 100' RJW """ ' ". ..... l"_.c-_::-=-::;'_,~_.~" _ ~~' ~..'. .,,>.-- ~ '-,,5?j :''0. --...~ '\ "'-.. /- ._~ . EXJIOTrl~e\J".EI''''~T ../" . h ..,~~;~ a~~:~::.-:J -----::;..:.:~ 06C,- ----./ ------~. '- ----...~/ --........... \ ~ '&t, ./ DEVELOPER: ltlmtAS D+aJSPi ROAL REAl. Em 1E ~~ lIOi'lTt f'~Jo.Y, m 150 tlCIAM,l,POLI:S,.... ~iD C7e~)~"70- ENGINEER: a\IIL ~ alllF, ~'G. 84J W-A~~T19 AWfLlE s",,, :roo r:;r~llWt\ 48204 SURVEYOR: OW!! S.IM'l1IO tIC. QoMi OCMtEFl :!TR.EO ~~Qwot......oeQ PROJECT NUMBER TER.OOl DRAWING NUM8ER IEX2 SHEET 1 OF 1 PROPOSED CONDITIONS Impervious Area = Impervious Area = Open Area = Gravel/Stone = Runoff Coefficient 0.90 0.85 0.15 0.85 Curve Number 98 98 68.8 87.4 "Rooftop "Pavement "Open Space (Fair Condition) Brookston Silty Clay Loam (Br -.40% Site) Type "B" Soil Crosby Silt Loam (CrA - 60% Site) Type "C" Soil ON SITE IEX1l Impervious Area Rooftop (1I^2) 16421 Impervious Area Pavement (11'2) 50389 Open Area (ft^2) 8485 Stone (1I^2) o Total (1\^2) 75295 Total (Acres) 1.73 Composite Composite "CN" "C" 94.7 0.78 Overland flow geg. I Shallow Concentrated Flow Basin Length S n T t Length S PavedlUn Vel. T_I T_c name (ft) % (min) (ft) % (P or U) (ttls) (mill) (min) PR1 24 2.50 0.150 3 61 1.00 U 1.61 1 5 CIVIL SITE GROUP, INC. EXISTING RUNOFF CALCULATION. RATIONAL METHOD 09127107 PROJECT NAME MEIJER #130 RETAIL OUTLEOT "An PROJECT No. TER.001 STORM FREQUENCY DESIGN YEAR 2 LOCATION INLET ACRES COEF. SUM TIME CONC. (min) INT. "Qtt: from to AREA sub total lie" CA CA Inlet drain total "I" CIA EX1 1.73 0.80 1.38 5 " 5 4.63 6.41 STORM FREQUENCY DESIGN YEAR 10 LOCATION INLET ACRES COEF. SUM TIME CONC. (min) INT. "Q"= from to AREA sub total "C" CA CA inlet drain total "I" CIA EX1 1.73 0.80 1.38 5 5 6.12 8.47 STORM FREQUENCY DESIGN YEAR 100 LOCATION INLET ACRES COEF. SUM TIME CONC. (min) INT. "Q"= from \0 AREA sub total "C" CA CA inlet drain total "I" CIA {!: EX1 1.73 0.80 1.38 l'li 5 I" 5 9.12 12.62 I,' PROPOSED RUNOFF CALCULATION - RATIONAL METHOD PROJECT NAME MEIJER #130 RETAIL OUTLEOT "A" PROJECT No. TER.001 STORM FREQUENCY DESIGN YEAR 2 LOCATION INLET ACRES COEF. SUM TIME CONC. (mln) INT. "Q"= from to AREA sub to\al "C' CA CA inlet drain total "I" CIA PR1 1.73 0.78 1.35 II 5 5 4.63 6.25 " i '11 :11 STORM FREQUENCY DESIGN YEAR 10 LOCATION INLET ACRES COEF. SUM TIME CONC. (min) INT. "Q"= from to AREA sub total "C" CA CA Inlet drain total "I" CIA PR1 1.73 0.78 1.35 5 , 5 6.12 8.26 " , i!~ ;:.' 11 II' "',' STORM FREQUENCY DESIGN YEAR 100 LOCATION INLET ACRES COEF. SUM TIME CONC. (mln) INT. "Q"= from to AREA sub total "e" CA CA inlet drain total "I" CIA PR1 1.73 0.78 1.35 5 5 9.12 12.31 ,it; ~ ;: , " II' Page 1