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26132 PE-1504 SULLIVAN CTR , WRSITYNGZ'OtV STATE DEPARTiVfENT OF 'Y'R.ANSPORTAFION SULLIVAIV ROAD INTERCHANGE 5PC7KANE L-6332 SR 90 SPOKAAiE February 1987 DESIGIif REPORT D"K""AFT . 4~. ~ W SO ~ ~ C= 'A . ~ ~ '14254 ~e,!'' tSTER , NAL P; TABLE C}~ CONTENT5 EMe ❑escriptian I Existing Situations and Propbsal I Traffic Volumes 2 Geametric Layout 3 Horizontal and Vertical Alagnrnent 3 Roadway Cross-section 4 Access Contral 5 Rtght-of-lVay 5 111umination 5 5igning 5 Traffic Cantrol 6 Traffic Signal Warrants 6 Signal Intea-canr►ectian 6 5oils 8 Other Design Elements $ Funding g Appendices: A Raalroad Corres,pondence B Soi1s Report C Environmental Checklist O C?pen Space P1an ~ . ~ Loc~~ ~ ~ 290 , GUL~'~ t~ N' ~ ' C~bfi ~ . go ~ ~ a ~ 27 C] cr g Y 1 ~ - tAICA ~ • ~0 t4GE - ~4 ft,~'~ ►c~T~"~'~'~' 2 - ~:,~'L i~►'~[~~F ,9~ .92 ~ p►~ , ' ~ 32031D7 - - ~~►l~~~C ~ ~ ~ Gs ~ WIlSHINGTOld STATi E DEP1°►RTMEMZ' OF TRANSPORTA3'ION L--6332 SR 90, Sullivan Road Znterchanee--Ramv Modi#ication DESIGN FLEPQRT Desrription This proiect prnVides for modifications of the westbound ora- and vff-rarnps o# the 5R 90/Sullavan Road interchange in 5pakane County approximately six mifes east ❑f Spokane. The rr-rodifications will pravide direct connections ta pro,posed Intfiana Avenue. Signing and illuminattan will be canstructed on the new portion of the ramps as part of the modrfica#ion. A1sa included es elimination of the #ree right-turn rnavement frvm the exastlng westtaaund off-rarnp terminus, access contrcal mad'eficatians to inctude Indiana Avenue, modi#ications to 5uliivan Road, and intercannectivn of the existing ramp signais on 5ullivan Rcaad with the proposed signai at SuIlivan Road and Indiana Ptiaenue. Existing Situatian arad Prvpasal Backgrvund State Ftoute 90 is an east-west freeway facilPty Ccansisting of fQUr basic lanes in the prvject area. Sullivan Rcaad is a narth-south principal arterial of four basie laraes, with a srx-lane oWercrossing of 5R 90. The interchange cosasists of a diamand-type tlesign wbth signaiized ramp terminals separated by ahou# 750 feet. Dua1 left-turning 1anes and two-lane ramps are provided. Tnis interchange was recanstrtacted during 19$4 and 19$5 ta proVide additional capacity. The planning for the currentdy praposed reconstruction ancduded consideration of traffic growth and dedelopment which would oGCUr in the aicinity of fhe inxerchange. MQSt signi#iCant in thas regard is a prQpasal by an area develoPer to construct a regianal shopping mall (Sullivan Pack Center) narth of SR 90 and west of 5uldiVan Road. That ,project alsv includes future rieVelopment of a business park east of 5u1li^van Roaci. The issue of acGess to the sixe is addres5ed in the 5ulliyan Park Center Draf t 5uppiernentai Environmental 1rnDact 5tatement (a5EI5), issued in June 1985 by 5,pokane Gvuntp, That DSEIS contains a letter from Mr. S.R. Mvon xo Mr. H.R. Hammond, dated Jurae 21, 1984, which requires eonstructian of the proposed access ramps in conjunction -I - iJ _1J wifih the initial phase of sYhopping center development of appeaxbmately 650,000 square feet ❑f gross leasabie area. Any expansian heyond that 1eVeI would not be accepta6le ta the Departrnent without additional access and capacity prowisians. 5uch addi#ianal aecess is addressed in the ❑epartment's SR 90 study, 5pokane: Four Lakes to Idaho 5tate Line, N1arch 1986. The conditians of approvai for Sullivan Fark Center aisa speeify that #hese ramp madifications be constructed prior ta ocCupancy of #he shopping center. 7he suhject of this design report is 1irnited to the pro,posed aceess ramps at Sullivan Road and related snadifications. With deveiopment af the shapping center, Indiana Avenue v,+ill he ex#ended to and beyorad Sullivan Road. Proximity af the existing S,pakane Rfver bridge allaws only 340 fee# from the proposed signalized °antersectiorr of Indiana Avenue with Sullivan Raad to the existing signalized ramp terminals. This fayaut licnits the turn bay length available for starage of vehicles turning left from raorthbound Sullivan Road onto westhaund Indiana f'1venue. Prajected traffic volumes would require unacceptably long gsreen tirnes #or fhis left-turn storage hay. TraffiC alsa has a limited distance available for weavang frorn the wesib4und exit ramp aerass Sullivan Etoad to this left-turn bay. 7he prapased aecess ramps waudd a[leaiate these potential prohlems by alfowing westbaund off-rarnp traffac direcfily ont4 Indiana P1Venue. Traf#ic Dn IntCiana Ayenue waufd erater the new westbound on-ramp withrout going through the two intersectians an Sullivan Rmad. The mrsre direct rarnps will reduce the amour+t of traffac an Sullivan Road. This, in turn, wilE reduce the green time and weaVing maneuvers required for the northbound left-turn movement frarra Sullivan Road to Indiana Auenue. Under the prvposal, the intersectian of Sullivan Rdad and Indiana Avenue wau2d be signaiized and interconrsected with fhe signal at the narth 5It 90 ramp terminal. No sigrralization is warranted at either of the proposed ramp terminals with Indiana A^venue, Traffic Yvlumes . 7raffic fDrecast5 were prepared far 1990 and 2000 as part af the Sullivan Parlc Center QSE15. These forecasts cansidered the curnulative impacts af traffic growth an bvth a daily and ,peak-houe basis. The tabfe belaw summarizes the histarical traffic data and fqrecasts in the vicinity of the 5R 90I5u11ivan in#erchange. - 2 - ~TABLE 1 TRAFFIG VaLi3ME SL3MMARY A DT (vpd] F M Peak (vph) 1983 1990 2000 1983 1990 2000 5~.' 90 twest of Sullivan Rd. 23,520 46,440 67,73D 5ullivan Ftd. at 5pokane River 14,450 22,390 34,320 9-- 2,236 2,623 5ullavan Rd. south of 5R 90 17,300 29,010 47,000 2,513 3,163 PropoSed exit ramg 1,390 1,925 -_v 167 231 Prmposed entrance ramp 2,300 3,750 276 450 Geometric Lavaut The prapv5ed nQrv exit ramp will diverge fram the existing westbovnd exft ramp at a point 700 #eet east cif Sullivan Road. lt will consist of a single-1ane rarrsp extensinray and will intersect IIrsdcana AVenue ahout 600 feet east of SullLdan Road. The praPased entrance ramp will jain the exi5ting westbaund enxrance ramp appraxi- mately 500 feet west of Sullivan Road. It will Consist of a single lane which originates from a deceleration Iane on easthound Indiana Avenue, then diaerging at apoint abaut 300 feet west of 5ullir►an Road. Iradiana Avenue will cansist ❑f a fiae-lane raadway 1n this area, with six lanes pravid'ed at the intersection with Suliivan Raad. In addition SUllivan Raad will be wideeaed ta prauide dual left-turn lanes on the south appraach, and to prvvlde an additianal sauih6ound thraugh lane hetween the Spakane River bridge and the nartherly SR 90 ram ps. Horizontal and Verticai Aiienment The propased exit ramp has been designed far a 35 mph speed, using a 350-faot horizontal curve. A standard exif-ramp taper of 20.1 is pravided in adaance of ihe gare area. ,3~ The prap45ed entrance ra m p has a design speed af 25 m ph, and uses a 250-#oat horizontal eurve. This ram,p joins the two-lane westbound entrance ramp using a taper of 37:I ta the edge af fhe existing ramp, which itseif is an a 50:1 taper. The new taper is therefare 25.39.1 in relativn to the ramp centeriine. With that taper, the merge can be accomplished before the merge with the 5R 90 mainline. The rarnp cannections with Indiana Aaenue haue been lvcated at a 750 angle to dascourage left turns from Indiana Avenue and to a11aw a langer raciius far the proposed exit rarri,p. At the exit raTnp intersectian, a SQ-foat radius is prouided for the left turn and a lS-#oot radius far the right turn. At the entrance ramp interseetion, a 75-fvat radius is ,proposed. These turning radii are sufficaent to accamrroodate aWB-5D vehicTe. L?ifferences in eievatian in the uicinity of the proposed ramp aee slight. Zhe profile grade for both ramps is under 3 percent. The horfzonta1 and vertical alignment pr❑Vide #or adequate stopping sight distance on both ramps. `Fhe difference in elevation between Inaiana Avenue and the ramp connectien is 7.3 fe€t for the westbound off- ramp and 0,1 faot for the westbound on-rarxyp. The grade connectiaras with Indiaraa Avenue are 2 percent for bath ramps. Standard superefevatian based on 6 percent maximum is propased for 6oth ramps. Sheets 1 through 4 of 4, 5ullivan Road InterCfaanze Ramp Madificatians, which represeni a new interchange ,plan far appraval, are rncluded with this design report. Roadway Cross-SeCtion . 7he roaciway section for the propvsed eamps wi11 be standard csne-lane rarn,ps with _ standard eight-foot right shoulders and foUr-foot feft shoulders. The exit ramp lane wi1i be 18 ffeet wide to accvmcnodate turrsing on the 350-foot radius horizontal curve, and the entrance ramp lane wili he 20 feet wide to accammgdate turning an the 250-foot radius curve. In the vicinity af the ramp connections, Indiana Avenue wiil consist of a curh and gutter section with 5ix-favt sfdewalks on both sides. Curb lartes will be 14 feet wide and the remaining lanes wil1 be 12 feet wrde. East of the new exit ramp and west of the new entrance ramp, Indiana Avenue wIll be a divided faciilty with a 16-f4Dfi median divider. - 4 - AcCESS ConLTO1 In the vicinity of the interchange, it will be necessary ta prvvide fQr limited access in order tm protect ihe eapacity a# the ramps and irstersectians. Na driveway access will be permitted onto the proposed rarnps, onto Indiana Avenue near the ramp terminalsr ar onto 5u11ivan Raad between the SR 90 ramps arad Indiana AVenue, with the exception of three appraaches as shawn on tihe inteechange plan. . along 6oth sides of lndiana Avenue froan Station 93+25 to 5tation 109+ on Suliiaan Road t❑ 5tativn 52+90.39. No access cantroi hearings are anticipated. Light-of-W ay Right-of-way far the ramp terminafs will be dedicated by the prc,,perty owner. 'Chis right-af-way w11l range hetween I00 and 150 #eet in width sQ that side slopes and drainage falx vaithin W5C]f]T awnership. This right-of-way wrll be fenced, to the extent shown an the Channelization, Iilumination and Signing PIan. The right-of-way fer the extensian Df Indiana Avenue wi11 be dedicated to 5pokane Ceunty by the praperty awner. The small open spaces east and west of Sullivan Road will remain in private Qwnership, and will be u5ed fvt utilitiesa signing and landscaping. A partion af Buriingtan IVorthern Raifraad's (BNR) #orrner Carders ta Greenacres right- af-way runs thraugh the project area, between the existing NW and SW rarnp terrninals and the Spokane River bridge. Appendix A includes correspondence hetween the deaeloper af Sullivaea Parlc Center and BNR, which indicates BNR's intere5t in se1ling ~ ~ - their right-af-way and their apgroval tm include it in this ttesign repor#. Itlumina#ivn 5tandard illumination will be pcovided on the ramps and at the intersectians of Indiana Avenue with the ramps. The intersection af Indaana Avenue with 5uliivan Road alsa wall be i11uminated. -5 - ~ Sxgneng 5uppfernentary signing will be peovided an the 5R 90 westbaund exit ramp to d'arect travellers destined to lndiana Avenue and northbound on Sullivan Raad tv use to prdposed ne►v exit rarnp. Matorists destined to sauthbaund Sullivan Rflad will be signed to u5e the old exit ramp. Additional signang will be instadled on eastbaund Indiana Awenue to direct rnotcsrists destined for we5tbound 5R 90 nnta the propQsed new eratrance rarro,p and meatorists destinetf #or eastbvund 5kt 90 ta Sullivan Road. The new entrance ramp wi11 be provided wlth a VIELT3 indication at the merge vreth the existing 5R 90 westhound entrance ramp. Tra#frc Cantrol The new exit ramp w11f be cantrolled with a STOP sign at the Indiana Avenue intersectaon, with a 5TC7~ AHEAL) adVance indication. Ttre low Volumes on the ramp do not justify a traffic signal. A NU LEFT TURN sign should be installed on the island on westbaund Indiana Rvenue, and DO N0T ENTER and WRDNG WAY 51gY15 at the ramp terminus. The 5ullivan/Zndiana intersection will be signaliaed using a fully-aetivated controller. A pratected left-turn phase is praposed on ihe 5outh approach. It is recommended that the con traller be expandable to €u11 eight-phase eapability. Pushb utton-ac traated pedestrean phases alssa wifl he installed. Laop detecivrs will be ,proVided ora all approach lanes. Tra#fic Signal 'Narrant5 A traffic szgnal warrrant analysis was prepared for the 5u11ivan,fIradPaaaa intersection to examine the need for signalization. The analysis focused on I990' with first phase of Sullivan Park Center irs p1ace, including the shapping mall and hotel. The hourfy distributiora crf traffic far these land uses was estimated fram the ITE pubiication TriA C;eneration and it'am actual traffic caunts of comparable facilities. The warrant analysis was conducted in accordance with the Manual of Unaform Tra#fic Cantro! DeVices (iNYUTC17). It was determineri that -the 5ulliVanlIndiana intersectAOn - 6 - will rneet the criterla of Warrant One: Minimum Vehicular Vcalurrtie. Traffic Wolume ❑n Suliivarr RQad in 1990 will exceed 600 aehicles per hflur (vph) fcar ouer 14 hours o# fihe ciay, and traffic valume on Indiana Avenue will exceed ?Dfl vph #or 10 hours each day. This sntersectlen aiso will meet the criteria of 1Varrant Twa: interruptian af Continuous 7raffac for 12 hours each day. SiEnal InterconneCtian The system of three traffic signals a1vng 5u1liVan Raad Ls planned t6 be interconnected to prvvide pragressiv°e movement in this carridar. An interconnectiran analysis has been canducted to determine the parameters for progressiVe mcswement. In a typical signaiized diarnond interchange, the signals are coordinated so that ap,proaching traffic is provided with uninterrupted flow through both ramp terminal intersecticans. At the 5R 90lSuliivan interchange, these ramp terrninals are sepaeated by approximately 760 feet. The prapased intersection with Indiana Avenue wil be lacated approscimately 310 feet north of the narth ramp terminals. ProgressiWe mrovement through these intersectians was deMelaped using average speeds of 30 ta 35 mph. Traffic volume forecasts fr4m tne Sullivan Park Center I7EIS were used to estirs-iate signal phasing and timing. These forecasts represenf the weekday FM peak hotar for 1990. A sigraal cycle length of 90 seconds was used for the analysis. The time-space diagram for these cnnditions is pre5ented on Figure l. In the northbound direction, xhe green throughband is estimated t4 be abaut 38 seconds in length, for an efficiency af 42 ,percent, The sauthbound throughbarid will be 50 seconds in length, with ar, efficlency of 56 pereent. Draring the PNi peak periad, the directiranal spiit is prajec#ed to be about 55 percent in the svu#hbound direction. The throughbands indicate the characteristics of f1aw for veh icles ira both directians on Su11ivan Road. The time-space diagram alsa prodides infQrrnataon cancerraing pragression ior vehicles enLering 5u1livan Rsaad fram the 5ft 90 ramps. Tra#fic from eastbound 5R 90 tut'ning feft to northbound Sullivan Raad alsv will receive a green indaca#ion at the narth ramps, providing continuvus rnmvement through the interchange. Furthermore, nearly all thi5 northbound platcaon will receive a green indication thraugh ihe sagnal at Indiana Avenue. -7 - FIC[IRE 1 SLILLIVAN ROAD PRC}CRESSif}N ANALYSIS 1990 PM PEAK HDUFt 51qna1 cyclea , zC Ss ~ Effr~~enc 5Peed L. ~3 s6 ~°e ~ah 14 1,2 ~ I ,c i.os 4~ - ~ EtttCie~ncy ~-a.ss ' Speed `v 85 95 071 oAa --o.5 0. 51 ~ , 0 200 aQV soo Bov 1000 Dfstanca 5vuth Narth Ind iQno , Ramps Romps Sufliyan Road Pro9resaion AnaIY$ia ` 1390 PM Peak Hour - i fioare 1 Traftic entering southbound Sullivan RQad from the westbound 5R 90 exit ramp will be frJ!'Ced #Q S1Dp aL 4}lE SOUtheCnC[7Q5fi 51gf]3I. However, the volume af traffic making thas mavement is extremely dight (under lOfl vph), and the delay at the south ramps will average under 20 seconds. Traffic entering southbounti Sullivan Road fram Indiana AVersue during the Crvss-street red interval will be required ta 5top at the narth ramps. Hewever, the free-flnw right turn fram Indiana Avenue to southbound 5ullavan Road will enahle rnany Vehicles ta - `.`°enter the southbound throughhand withaut stopping at the north ramps. - -8- The sauthbaund throughtsand has been develaped an the basis of a daggirig Ieft turn de5ign a# #he Su1livan/Indiana intersection. The use ❑f a leading leffi turn at thi5 location wouid Corr►promise the abitity ta provide uninterrupted flow for narthbound vehicles which eratered Sullivan Road frarn tFre eastbaund SR 90 exit ramp. Although the iagging left iurn is a less cQnventlonal pattern, it is recomrnended ta pravide the rnaximum appgrtunities for pragressive movemerst. 5rails A SblIS report was prepared December 14, 1982 fQr the Sullivan Road 1Jndercro5sing 1Repfaceronent, L-6332A. The report describes the foundation material as '{laase to ^very dense Silty and sandy graVel with cobbles and boulders.° The materials appear quite uni#arm among the fiVe test hales drilled. The underlying sediments were described as praviding "good foundatian canditians" for consfruction of karidge piers. tVlaterials nearer the surface are similar, hut in same cases, less ttensely consolida3ed. Based on #he a6ove saiis report, ir►cluded in Appendix B, #Fae materials at the site appear tQ be adequate far canstructAon of the reguired cufs and fills. Zother L3esign Elements Drainage of the ramps wi11 be accomplished Using grass-lined swales and dry wells. Temporary erosiorr control measures, such as situation fenees, straw bales, etc., tiv:ll be reqraired during construction. All disturbed areas w111 be hydroseeded during campletiQn of construction. A SEPA checklist has heen prepared for the prv}ect, whlch references the DEIS and 5bEI5 prepared far Sullivan Park Genter. See Appendix C. /Fundiny, Funding #or all improvements eovered by this design repflrt will be prpuided by the develaper of 5u11ivan F'ark Center. -9- FF f BURUNG3i3N illOR'fHERN RAILROAD E,, Mwmg North 9507 DRvisiors 5treet Spokane, WaShEngCDn 99218 PRC]PERTY MANAGEVvf ENT QEPARTMENT Telephone (509) 455-7313 _ 455-7426 Mr, Machael T. Teramatp 5eptember 5, 19$6 Hanson Propert aes, Tnc. P. Box 7400 Fi 1e: Spokarre, Wa. 5pakartep WashingtQn 919207-0406 Hanson Aear h!i ke; This has reference to your 1etter August 2Bth ab❑ut prnpased desigri studies and re~orts neeessary in connectiQn with planned changes to the SuIlivan Road intersectiarrs at indiana AWe. and aur fvrmer Carders ta Greenaeres right of way. Burlington Narthern Railroad has n❑ ❑bj2etian to including a prrtiors its right ❑f way in that area in the Desigrs Studies A F ternat i ues process. You have our approva 1to ineorporate our property in the study. Kind regards, - Yflurs very tru1y, C."Jo-k- ~ . . W. D. Farr-e11 Property Develaprnsent 5pecialist WDFltd ' - , _ Z70,~_ eIv ~ ~ . t • - d. c~'~i~a.~~.i .a~•~'rL~.ys,.r•=w ~~v'~' R. I~'~I. fl1'~N~7v1~ ~/~.JMPW1*~ i, INIL.Ir I Cie:874177pTaee33E-474~J307-0+SOQ11aJk. . SEP ^ 3 19~ i ~ • ' ' • esugUSt 28, 110$6 Mr, Walter Farrell F'roperty Develapment Specialist Burl inqton Northern Rai].road ilortYr 9507 Qivision Sppkane. Washington 9921$ Re: ;:arders to Greenacres Right of I•Tay Dear WaJ.].y: We taave commenced t~e Design Repart Apgraval pracess uiith tiie vdashington 5tate Department Qf Transnortation fvr thE pro:~o-,ed zntersection of the extension of Indiana Avenue s,aith 5ulli;'dn Road and the intexp'hasing of S3id intersectzpn and ramps with 1-90. This process encompasses col-nprehensive analysis and a2so requires approval fro:n the Fecieral Highways Administratian. Since a poartion m£ the abave--referenced raqht-of-way ain i~b-,2 vicinity ❑f SulIivan Road will be incZuded i-n ❑esign 5'tudy Alternatives and further, that said right-cf-,aay ;s raot presently under our cantrvl, Washingtan State Deaar;:pent of_ Transportation recornmended that we obtain writtQEz new::ission from yau ta incorrporate the B.N.R.R. praperty inco th; desi_-n proGess. This is solely a"papez'° approval Process anri so;osequent cvnstruction permat-s will not be a-,)-alzed far nr issued uratil the xight-of-way is acauired by the apprapriate entity. • Sy Mr. Walter Farrell Page Two August 28, 1986 On that topic, T will have adraft "letter of unr3erstanding„ for yoear review within tne ner.i couoIe vf wee?::=. Thr-, ;cape ..)f the draFt wil1 outline at~r disc:zssions of oas::ure vlans w i th the County and w i 1l in no way allege any comrrii tment by any party at this time. The intent of such a letter i.s simply to establish cvntinuity for future riglzt-of-way discussions w;th thp Caunty- VTe will certai.nly keep you a?aprised throughaut this pracess. T}ianks frar yaur assistance on this matter. Sincerely. F3AN5ON PROPERTIES, INC. Micbael T. TeYamot❑ MTT : Ic cc : Da ve Bmy7. e Dick S imvscapn RP, H FBC ' . .r ~ ~ a~ = ~ • ~ ~ . I(')HTti 4f'[l.l eti1.qN a Gnwernrsr rll.►r► 57ATE OF V1',%4HfhJGT£3N DEPARTMENT C7F TRAN5PC3RTATEC)r Niglititi•iy ACirrrintsfrd[iQn Buil(ling o C71y►rapia. Washrngron 98504 o(. S Qecember 14, 1982 L, ~r ~1 rE-~ . - ~ ~ : JUL z S 1986 l1r. C. S. Gloyd . ~ Sri dge Engi neer ~ St~x, J 2A4 Fi3ghway Administratiora Bldg. Olympia, WA 98504 ' Re: C.S. 3203, SR-90, L-6332Ae___~ Spvkane Principal Urhan Arterial 5u11ivan Road l9ndercrossing . Vicinity Statiarr 5R-43+00 i pear Mr. Giayd: Thi s 1etter preserats the faundati on recamrrtendati ons far the propased Sul li van Road Undercrassing replacenent. The progvsed structure will he a twa-span prestressed concrete-girder-bridge, 189 ft long arrd 78 ft wide. This bridge wi]1 carry 7ocal traffic pver Interstate 90. Both end approaches will cansist of embankment varying up t❑ 18 ft in height. The recarmnendations in this report are based vn the specific prvject descrip- . tion and site conditions encauntgred durirag vur field explarataons. The exploratory bvrings are assumed to be representative of the suh5urface condi ttivns thr°aughout the project area, an d the 5l]b5ilrfaCe cvndi tions found elsewhere are assumed nat to differ significantly fram those found in this investigativn. If subsurface conditions different frQm those found by the explvrataons are encountered durang COI15tT'UCt3{?13, we should be notified so that we may assYSt you in reviewing these conditions and re-evaluate aur foundation recv€nmendations. Project History 7he exi5ting 5tructure is atwo-span reinforced cancrete-girder hrfdge a6nut 118 ft long and 32 ft wide. Both end apprvache5 consist nf retaining wa11s nn either side ❑f the roadway. The three existing piers a11 rest on the spr+ead footings which are designed for lnads up ta 3 tsf. 5i te Geolagy Pri or to g1 aci al ti nie, the ancestral 5pokane Ri ver had cut a deep,wi de traugh into and thrvugh the ba$alt flvw rvcks that cvvered tne area. The PleiStocene ice advanced from the Narth and East, displacing the river and fil7ing the valle.y with as much as SQQ ft of glacivfluvial material consisting af bedded RECEIVED ~'~...t•-r JAt-I s9,53 , . PAUL A. NEL)vIv . Mr, C. S. Gldyd December 14, 1982 C.S. 3203, 5R-9[], 1,-6332A Page 2 sand and grave7, wi th r,a nor anounts of silt and cl ay. fihese sedi rrents wy 71 prov7de good foundativn conditions. Field Investigation The foundation inuestigation consisted af drilling five test holes t❑ determine the type af foundatian support required. Foundativn naterial, in general, cvnsasts of loose to very dense si1ty and sandy gravel with cohbles and bou7ders. Grouradwater was not encvuntered during the bvring explvration. Laboratary Tiesting When the field 5df{1ple5 were delivered to the I•later-ials Laboratvey, the sanples were divided int❑ groups of similar saaj type5. To verify the field identifications and give proper sail classification under the Jnified Svil Classification System, tw❑ sieve analyses were performed on the representative s4i1 samp7es, The Log vf Test Barings represent a summary descriptian of sample identifacation from both the field and laboratory data. The rescrlts of the laboratary test5 are provided in Rppendix B. Lprcaach Constructi on The propa5ed Pi er I and 3 apprvach em6ankments wil 1 requi re part of the fi11 being pl aced vn the exi sting apprvach embankmerrts. At Pier 1,thi swi 1l resul t i nthe fi11 varyi n} from 8t❑ 18 ft in hei ght along the back vf pavement seat. - At Pier 3, the fill varies fram 4 tv 27 ft in height. The part af the embank- rnents that are 1$ ft and 21 ft i ri hei ght wi i l oe used f4r a tetnporary detour. Fill settlement will accur during errbankncnt constructinn. Past-constructinn differential sett7enient alvng the back of pavement seat will be negligible. The existing left retaining wails nay rertain in place when the approach fills are constructed during stage 3. Hvwever, we reca[rmend that the traff i c rai 1s be removed. Since post-constructian settlenent will be negligibie, concrete pavement approach s7abs are nvt necessary for reasvrrs of fill sett7ement. Both appraaches will be stable with 1--314:1 end slopes. 6rTdqe-Foundation 5upport lie recammend that spread footings be used to support each of the three piers of this structure, Rt Paers I and 3, spread footings may be designed for laads up • to 3 tsf and be located an the hasi5 of the criteria in the Bridge aesign h3anual far faundations vn slDpes. This will resu1t ira approximately 15 ft of loose sail existing below foot3ng level. Tv provide adequate bearing and mininixe pzer settlement, a mirair,num 10 ft of laose sai1 should be ren,nved below fQating ievel. The excavati on cava ty must be backfi11 ed wi th a gvvd-qual ity granul ar materi al . campacted ta 95 percent of maximun density. The sail encountered in test holes s H-4 and N-5 andicates the Zoose sand arad gravel to be excavated can be used as s ~ i 1 Y t r M1". C. S. GlQ]Id December 14, 1982 C.S. 3203, 5R-90, L-6332A Page 3 hackfill ma#.erial. As can be seen irr figures I and 2, the hvrizontal limits of the overexcavation cavity may be determi ned by extendi ng an i nagi nary la ne down fror,~ the outs i de edge of the propased foating on a 7:1 s]ope untii a depth ❑f 10 ft nr elevatian 2001 at Pier 1 and elevation 1995 at Pier 3 is reached, i.e,, excavatian need • not extend beTow elevations 2007 and 1995. The existing retaining walls will need to be removed tQ at least 4 ft belaw the new footing and possibly to the bottom of the averexcavation cavity sv as not-t❑ intr❑duce concentrated loads ta the new footings. The exact depth of wall removal will depend on the , temp❑rary shoring needed. ' We have estimated that the Pier 1 and 3footings may settle as much as one inch during cpnstruction. Tt is expected that differential sett7ement between Piers I and 2 rnay be as much as 75 percent of tataY settl@ment or 0.7 inches. At Pier 2, spread-foating support may be designed for 7oad5 up ta 6 tsf. To mitigate the potential for differential settlement at the new Pier 2 faoting ' level, it is 5uggested the new pier fvoting be laeated at the same elevatian as the existing faoting. Foundativn recvmmendations have been summarized nn the attached Foundation Design Recvmmendation sheet. Also attached are the Logs of Test BorTngs, the Sail PrQfile, and Figure 1 wh i ch shows the 1 i ni ts of excavati on for constructing the spread fvating far Pier 1. 7he Project Engirteer's cvpy of this report includes the laboratory data as well, so that a1l factua7 tinformations nay be available tv the contractor as stated in Section 1-02.4 of the Staridard 5pecifieations. Very trul,y yours, e- A. J. FETERS, P.E. liateri als Engi neer AJP.kj Rl4/TV2f LDW Attach. cc: W. R. Horning R. L. Larson R. E. Bockstruck A.'N H. Wa l 1 ey , . • • WASHINGTpN STAT£ 7RANSPURTATION COMMIS51ON Oeportment of Trnnsportation MATERIALS LABOR►4TQRY F0UNDATION DESIGfV RECQMIIAENDAT1ONS S.R. NO. 90 PFt0JECT 5pokarae Pri nci pal Urban Arterial 5u11 i van Road Undercross i ng JQB NO. L-6332A CONTRf3L SECTCQN 3203 C3ATE 0ctober 27, 1982 ~ PILE SUPPORT ~ SPREAD Ffl(]T1NG5 ~ FOQTING PI ER 5TI4T ION ESTIMATED MlFdllvf UM ALLOWpRL'E ELEV. IA5 RECQMMENDEa ALL❑WABLE NO. TkP TIP LdA'Q SH17WR] flN FOOTiNG HEARfiNLi ELEVATiON ELEVAT[QN LAYDl1T ELEVATION VALUE 1 ~ 5R41±419:3 - ~ - ~ - - ~~]op esD 1 3 tsf 2 ISR44+43.93 - C - ~ - - ~ 1 Fi fisf -13L ~ . EM-0 3 ISR45+29.93 ~I " I I t€ ~ ~ I REMARKSa (1) Fovtincss tv be located accordina to criteri a i nBri dae Desi on h1anual far , fvundati ons in sl opes with winowal7 ;(2) Foundati on material wi ] i need to be overexcavated i and then backfilled with aood-cualitv qranular soil cvmnacted to 95 oercent Qf naximum density; (3) Faotinq will need tv be located a't same elevation as exi5tina footinq. APPROACH FCLL5 5TA8lL1TY; Avaroach embankments will be stable wath 1-314:1 end arrd si,dP slnoes. 5LT7LEMENT: Embankment settlement wi l7 be mi nor. , nT f n it 7 5~1. {17') D~7 P RXV4$E C]2/ 90 . . . _ . _ ,.w......~. . ~ . _ . _ ~ . ~ Stage 3 Construction 5tage I Cnnstruction EI ev. E l. 2,030.67_ Ne w Rood way ?',03(] r- EI. 29pu Existing Rrsodwa 15, 2,02c- Graund xisting Ground Ex►st~ng ~ EE. 2,015 ~ ( New Foatinq Elev-)\ I o' 102' ~ . :,000 - E a . ~,¢700 Ex'rsling ~r Existing Retainir~g INall ReTaininq Woli tv be Remaved ~tca Remain Fngure I ,9gG $toge I Canstructiora L&ek,:~5 1.4aLIc a.+ ~ I ) - - ~ Stage 3 Constructcon xm - L` e.SpQk[3Tle Pr1flcVQ0l UYb'afk Arterial— Sullivan Rvad Undercross+ng-- Pier I wASHrHGTON S1'AT! -No v 49 efor vF rruHSPOATArCN K••"flS 5?1oY N GHWaY DIvISIaN l tv -z 2e r MAlERIALS OFFICE I OP I v Over-excQVate and Bac4cfill t E xistinq Ground ~ - ~ Fvoting Level Based an • Foundatian in Slflpes Crit$ir i 0. t~ c~ , ~ e I t ~i+ • ~ ~ 10 . , i ~ I ' Over-excavafe ond Bock#itil - with goad quality materiati ` compacfed tv 95 °Io den51ty TYP1CAL SECT143N Figure 2 ~a c...3 2 9 J_ Sv1l vc~'n ~~ad L1~rt~~^~resssn~ r~.+wT~ve+ r~v.ae MIASFiIlIGTON 53A1'E 1'14 $ z oePT OF rwu.sPORTkrKw K•" ~ S Ft101tWAV piVfSICIH #AATERIRL3 OFIFECE - ■ 3 re e ~ rwrr+~ tpww er~w. w 1F ti•• • PAPPE34DTX A LQGs DF 7'E5T B(}R INGS ~ .P LaP QF TE~T 8OR1NG WASH ENGT(}N 5Tp~E DEPARTMEIVT OF 7RANSPDRTA7I 0N S H. S,R. I-90 SECTIpN 5vtrkane Vic. EaSt Joh No. L-6332 H nie N@. H- 1 5ub Section Sul i i van Rd, lf-xin9 CQnt. Sec. 3203 Statian 405+5$ Offset 61' Rt. Ground EI. 2000 (C[]ntraur Type of 8oring Rv'~ary & Auger Casing 4" I.D. Auger W.T. EC. nvt encauntered Inspeetor aate May 30, 1979 5hee't 1 of 2 ~EPThi PER BLOF~T, S PftaFfLE °FUBE MSAMPLEOS QESCRIPTI6A! OF hAATERIAt . 6 ~ 5TD Lvase, hrown, dry to moist, slightly silty. 5andy GRAVEL , pEN with a trace of organic material and mica. I)ampaer went 10 5 1 between cobbles arad baulders. 5 T 5 12 ~ STp aense, brawn, dry ta moi st, s7 i ghtZy si 1 ty, sandy GRAVGL - - 23 PEN with atrace of organi c materia l and mica. Auqers went qg 25 2 -past cabb] es and bvulders. 24 y . ~Q . J5 ~ STU Dense, brown, dry tQ moi5t, stiqhtly silty, sandy GRAVEL - ~ 25 PEN with a trace of arganic material and mica. Augers went 4~L ,23 3 past cabbles and baulders. 4'5 ~ 19 ~ 5TD ~ Very den5e, brown, dry to moist, slightly silty, sandy 35 PEN ~ GRAUEL - with a trace of organic material and maca. 62 27 4 Auqers went past c[ahbies. 25 20 Thi s i s asummary Lvg of Test Bari ng. 5oi 1 /rock Origlnal ta Matariala Englneer Goqy So Bridge Enginoer FOFiM 351•003 descriptinns are derived from wisua1 field DOT REVIsEO+2179 identifYCations and labvratory tests. Capy Z6 DIStriCf AAminlstretur , CwpY' !o uWY Fc•r% 351 0113 a,IH F 76 dd n} Re+.sed 5 67 i-Iate No -H-1------------- Sub 5ecti❑n-.... Sq1_li va nRoa dli--x i n9 5hecc---------- 2 of pEPTH BlOWS PROFIL£ ~ SA-ALE PER Fi UBE NQS pESCRlPiidN OF ASATgRIRL T ~ 30 ~ STD Very dense, brvwn, dr.y+ 'to mQ7 st, sli qht],y si 1 ty.., sandy GRAVFL - 25 PEN wi th a trace nf organi c materi a 1 and mti ca . Ru g er went 55 30 5 through cobbles at this depth. 22 24 y ~ ~ Test bor7nq StppD2d at -24.5' be7nw around elevation. ~ ~ ' For expl anati on of descri pti on see sheet 1, hol e no. N- i, a • ; ~ - ~ - M ..LOG 6F TE•ST BORING WASH IIVGT[]N STATE 0 EPARTMEIV7 OF TRANSPOATRTIpN S.H. 5 R. I-90 SECTBQN Spvkane Vi ctinity East JQb No, L-6332 Ho1e No. H-2 Sub 5ectrnn 5u11 a van Raad ll-Xi nq Cont. Sec. 3203 ' Station 4,~±45 Offset 5' Lt. - Ground EC. 2000 (CVntour) Se2 bottom Type of Baring Ratary & Auqer Casing 4" I. D. Auqer -37. 0' W.T. E!. Sheet ##2 inspectnr Date May 30, 1979 5heet 1 oi 2 BLQV+1& SAMPLE ❑EPYH PER FT. PRpFILE TUBE fVpS. i]ESCFiiPTIOiV OF 11+9ATERIs4L _ 19 STD .,5 19 PEN QeriSe, ~q~'dy-'~~"OWn s 5111~y ■ Sd~ldy GRAVEL, COBSLES a~rd Bp[ILDERS. ~ 25 ~ 1 29 ~ l i$ ~ sTo 18 PEN Dense. qra_v-brown, si Zty, sandy CRAVEL. 5amp1 er went between " 20 ~ 2 cobbles and boulders. 39 10 . 11 ~ 5TD ~ L~ 14 PEN Dense. gray-brawn , si lt.Y, sarrd_y^ GRAVEL. Auq e r• went thraugh 15 3 cobble5 and boulders. 14 5 ~ ~ 16 5TD , 19 FEN Dense L_ ra„Y-brown, si 1 ty, sandY GRAIlEL. A u ge r werrt thp•vuq h 15 ~ 4 ' cobbles. 21 For explanation vf description see sheet 1, hale nv. F9-1. Orlglnal So Materlefs Enqlneer C6py tR Bridge Englneer ~O.r F4R~t 351-001 REaiseo 12/79 Copyta DiFtrict W3mfniat+alar Covv to VJY Form 351 033 0 lH F 7$ 48 Al Rr+•sed 5 67 y Hole No.---H-2--------------------- Sub 5cctivn 1_7Vat7__R[3dd__U-X-1 ng---,--------......................... ahcct-------- of 'f7fRTH BLOYd5 pROFOLE SAM7LF 6'"R FT Tk1Bf MO5 pF,S[RIATION DF MA7ER3AL ~ 12 JTD ~ 1f; Deup. aray- 6rown . s ilty, sandy GRAVEI _ Aur< went througb---UL 20 5 25 Cobble5. 25 - 17 STD -44 20 PEN Derase, qray-brawn, silt.Y_~ sand_y GRAVEL. Auaers went throuah , 21 6 cabbles. 31 ' 30 8 ~ 5TD ~ I 0 PEN dense, arav-br_own. siltv_. sandv GRAVEL. A~}c er5 went throuqh 15 7 - cvbbles. • 23 ~ 35 7 5TD ~ nonCe, arU-brown. siltv, sandv GRAVEL. A~,~ c went throuah 17 8 cohbles. 39 ~ 17 Yest-hraritLg 5toaped at -39.0' beZaw around el evativn. No watPr rpached t0 39.0' below around elevation. For explanatinn of descriptivn see 5heet 1, hole n❑. H-l. . LQG OF TESj BORI'NG WASHINGTaN STATE QEPARTMENT OF TRANSPORTATION S.H. S.R. I-90 SECTION Spokdne Vic, EaSt; Vic. F9.P. 292 ,lah Na. L-6332 Ho1e No. H-3 5ub 5eetion Sul 1 i van Road U-7f ing Cant. 5ec. 3203 5tat"snn 405+31 Offset 61 ` Lt. Grnund EI. 1098 (cantpur) see battam Type ot 6osing Ratary and Auger CaSing 4" I.D. Auger W.T. EI. paqe 2 9nspector bate MaY 31, 1979 Sheet I of 2 PERTH S P£R FT LpWS PROFI~E I T~616~ SAMPLE NQS. dESCRIPTIQM OF iViATEf4EAL -10--1 STa 15 PEN Dense, drY to moist, qraY-brown, 57 lt.ya sandy GRAVEL 15 P~ Y 1 arad CDBBLES. I I 5 ~ `S ~ 5TD c3 11 PEN Medi um dense. dr.v to moist, qray-hrown, si 1 tv. sandy GRAVEi - 12 2 with a trace nf organic material and mica. Ruger went 14 ~ va5t cobbles. 10 ~ 24 ~ 5TD x 1$ PEi4 Derrse. drv to moist,--qra-v-brown, siltv, fine to coarse, 12 ~ 3 sandy GRAVEL. Auger went past cabbles, 19 . ~ i I ~ 118 p 1 STD PEhi . Denset dr.v to moist, qrav-brown, siltv, sand.y GRA4'EL and " 20 4 ' C48BLE5. Auger went past cobbles. 120 ~ 20 f . FO1" eXQ'ioTldtl Dfi Of de5C1"1 pt7 01'I 5e2 Sf3@et 1, ho7 e Ilo. H-1• Origlnal to Materlals En4lnaer CuoY to 19ridge Enqinaar FanM 351-po3 Cogy to Qlstrict Adminlstratar DOT RC..,sEa 1:171) COpY 40 . ,A 4kYY Form 351403 e IM F?b 46 AI kq,viird 5 674 Hafe No H-3----------------- Sub Scctian ------Sul l i Vdt1_ _ROdd__.U-ki M Shcet mf - DEPiH $~OW5 PRpFIIE SAM plE RER F1 iL19E NQS DESCRIPildF! BF k1+hTFfCIAL ` ~ 19 ~ ST~ 19 PEN Dense, dry to moi st,_gra-y-brawn, siZ t.Y., sandv GRr4UEL and 22 ~ 5 COBBLES. Auger west past cvhbles. 19 25 10 ~ 5TD 12 PEiV Nfedi um dertse. drV to mai st., rrav-bro~. si li; sa,~,v ~;RAVEL and 12 _L b COBBLES. Auger went past cabbles. 14 T ' . 12 ~ STD 23 PEN Verv dense, dry t.mo] st. n.,ray-bro~wn. sil ta. sar~ y GRAlIFI ~ 31 1 7 - and C~ISBLES. Auger wer~t pastcabb7 es . Z • 25 35 31 ~ 5TD 6032 P£iV Uerv den15E,_dry to moi st.,4grav-brown. si 1 tv. sandy GRAVEF 28 8 and COBBLES. Auger went pa5t cohble at -35.0'. 39 ~ 33 Test barinq stapped at -39.3' belvw qrvund elevation. 7est hoI e drv ta sI i9 htl.y damD from surface tabottvm at, -39.3' . For explanatian of descriptivn see sPheet 1, hole no. H-1. r ILOG 4F TEST BOR1NG WpSHtNGTOiV STATE aEPARTMENT OF TRANS'?ORTAT1ary SH. S.R. I-gD 5ECT10N 5pokane Principal Lirgan ArteriaZ Job No. L-6332 f Hole Na. H-4 Su4 Section 5u1 l i van Road ll-xi ng Cont. 5ec. 3203 Station 43+22 Offset 3' Lt. SR Li ne Graund El. 2025 7ype af Bnsing ChoP and Dri ve Casing 3" I.D.,-24.9' 1N.T. EI. NQt encountered Inspectar Oate October 23, 1982 Sheet I af 2 aEPTH PEgLR FT OWS PRD~ILE TUB£ SAMPL AfC1E5 pESCRtPTIOl+t OF MATERil1! . ~ Fi'TT-SUrtaCe: t~v6Tres ana-B-5UTaers scaf-t-eFe-a or+ suT7ace rrne vicinitv af the test ha1e. 5ome larve baulder5 scattered on bridge approach fill and adjacen# terrace slvpe. 5 80 STU Dense, light brown, dry, organic, slightly silty, fine to coarse 24 ~ PEPI sarrdY GRAV Ef.. (Fi l1 f1ateri a7 21 1 10 8 j 5TQ 6 1 PE3J Na Recoverv. 6 2 9 15 3 53O Loose, wet, brawn, arganic, slightly ^stlty, fine to course ~ 4 ~ PEN 5andv GRAVEL. 2 I 3 4 :i i I ~ Za ' Thi sis a summary Log of TestBQri ng. Soi 1] Rock Oriqinel to Mater6als £nglneer deSCi"ipt7 ❑f95 a~-e deri ved fron vi sual f i eld CapY So 8rltlge Englneer FoRan ssf-oo3 GoOY to C11strVct Adminlstratar 00T RE'",5Eg "179 1 defi1t1 f1 CdtA 4C15 aCld ldbO1"dt01",Y• te5t5 . G9av to ' - 1 ' z . ~ . + IHale No. H-4 Sv6 Sectian 5u11 i Vdn Road U-xi ng Sheec 2_ of 2 B1OW5 TSAMPLE AEPThI PEii FT. PROFILE YLi6E N{7S. 47ESCRIPTfDN CIF MA7ERIAL 4 STD Loase, kret, brawn, organic, slightly silty, fine tn course ~ 5 N 5arady GRAUE~.. v 3 4 G Denser at 23.7' bfeathered orarai te bnul der. STD 25 ZCiO/ ~ 100PEN _VgZ dense R2CE FRAGMENTS (Grani-tp1 z 5 Test hori nq 5tC]t]pECI at 25.1' Selvw qraund li ne. FORM , ~ 00T REV s o~a0apA , _ - . 0 L[iG Uf TE*5T BORING WASH9NGTON STATiE DEPARTMENT OF TRANSPORTATIaN S.H. S.R. I-90 SECTaON Si)o'kane Princi pa1 Urban Arteri al Job No. L-6332 Ho9e No. 8--3 Suh Sectian 5u11 i van Road U-xi np Cont. 5ec. 3203 5tation - 49+46 Offset 5R iL Ground EI. 2015 Type oi 6oring ~ Chon and Dri ve Casing 3'° I.D.,-22.5' W.T. EI. Not encauntered 1nspector Uate Octmber 24, 1982 Sheet 1 nf 2 QEP7'H 6 PELR FC]WT S p,R~FILE TllSSRE iVl 1VPLE05 [3ESCii1gTIL]IV C1F MATIE FZ9Al, ' A -~1 JUY~aGe, vicinity - 6❑ ~ I houlders scattered around. ~ . ~ i 5 I ~q STD DeCIS@a bY'AWna mOZSts slightly Q1'"g+aC11cy slightly $Zlty, f11'4e t0 4~ 21 PEN ~ caarse sandv GRAVEL. (Fill Materaa] ) 21 i 14 10 ~ 17 J~ 5TD 11 ~ PEN 1t4edium dense, brown, moist, slightly organic, slightly silty_ ~ 11 ~ 2 fi ne to coarse sand,y GRAVEL. (Fi l1 I•1ateri a1 ) B ~ Materia] much less dense be7ow 12'. 15 4 STD Loase, brown, no7 st, sli ghtly argani c, sli ght7y si 1ty, fi ne 3~ PEN to coarse sADdv GRAVEL . (Fil1 Material)7 ~ 3 6 ~ i - ~20 !Cd 5in0 5 C T"d D1np.along51 de bQMjjLU' U(~ ' to 21Q i Thi s is a sumary Log af Test Bori ng . 50i1 /Rack 4elqinal t4 WiAterlals Engine2r CoPY to 13ridge Englrt9er F417M 331-003 deseri pti pns ar@ dek'1 V2d fY`QT1 va sual f1Qld COpy to CDi3trlck Administretar DC1T ReVIsEd 12/74 identifications and iabgratory'tests. ' CQPY ta . ~ ~ ~ . Ho1e No. H°5 5ub Sec4iorr S il liIran Road 11-xinn 5heet 7 vf ~ BLDWS SAMPLE EPTFI PER FT. RAOFILE ~ ~'UgE IIi05 11 DESCF{IPYi[]N OF INATERIAL } 15 ~ 5TD Dense, hr°awn, moast, slightly organic, sligntly si7ty, fine tfl ~ 10 PEN_ coar5e sancfy GRAYE;_{Fi 1l Matar~1 ]b ~ 4 25 100p y lo01 sTD = PEN No Recoverv_; Verv dense. • 5 25 Test Hole stvnDed at 22.8' aeiaw ar I] ry Hv le . - e FORM ~ DOT RE"Vi'SED'4y~l6~ ~ . r g s APPElVDIX B LABflRATORY TEST DAZA ~ 9 : ~~r ~ ir~~ 1~' ~-I" ~~~~i~•~~'~C~° - ~ L5 *e C 01 u6. /~a. ~rn ~ ~I~c~ ~ . • C ~ f" ~y ~ ]r e~, -.*T~/ S~"~ G~!'• rr-- ~ , ~~,r,e~ ~ 1` - r~ r~ / =~i~ i ~ ~~i ,i !•.J • " 1 ~ ~ + , , ~ i . ~ ~ ~ {J / ■ s 7/4 1 G I`1 1-,31 A-fi J:3 JC $ . 2~,6 lYo: ~ ~ ~ t i ~ ~ r r r s eI /0,00- so// / ~BlO~ Zoe& 1~ ~I jr,/t'Qt/0l.7 ~ ,$'eL ~►7 0o, I S/ /;OL ! cla '!I !~i v' s ~ ~ i ~ i .i ~ • i ~ ' AO/CS ~ ~ N I I 9/' 7 i i ~ ~ ~ ~ N I I ..f' i i1 f ~ ~ 4 ~ I, I I S I ~ ~ ~ ~ I ~ I k I~~ ~ l I ' ry ~ ~ a I / I I I 6 i I 4 I / I I I I I f7 ~ t C■ ~,~P ;07/0r7 ~ ' f I I I i i ~ ,t~ ~ f ~ ~ ~ ~ 77- J ~ r9 ~sts 40 ~ rra so S C e I 4 8t~ • S`~' ~ 3~ ' ~ fd I~d z ~ 3t ~ i i ~ ~~ao~~•~~f ~/'~o EZ. Sc~v~ar~ s ,3 ~ " ~ " ¢ B a~s ~n ~i ~s~'co ~ k -9o ~ lij Lli 19 i ~ -ea ~--------____-_..-..d__....__~---__-----i__--_- ~ ~ y - rw~~- - -----------iaw- 4v ~ _r._---_--------_--------_s.._,- ti _ ~l ~ ~ 2yI ILU ~ p f .4 ' C T a re rol : "Ll" r. . s S-~ f= e, ri[L n r✓ . r ~f ~ ~Vt3~,l~`G?.~ az. MQ. an 1le ~ Dp y ~ . . . ~ OOL-- ~~.A ~ ~ ~ ~ sG"!~ ~ ~ ~I". .f ~c~ • I~~ ~ ~ . ~ s ~ 1 ~ F • ~ j ~ ~ ~ • ' i ~..r.• 'J ~ . ~p ` ~ ~ • , I ~ _ a HANSON P O Box 7310 1 5pokane, Washingt6n 99207 ■ U,S A ■ {569y 467-0770 ■ Telex 326474 - fiAHCC]. It7c RAHCG S7isc, [nC R A. f-ianson Co Ine ~ECCiVEI) Wansan Frvperlies, lnc R A Hanson A+faning Co s7EP 2 0 1785 SPOK": CbUNT1' ENGfNE6R DATE: September 20. 1985 TO: Spokane CounLy Engineer's mffice AC tenGion: Bob Turner SLTBJECT: Sullivan Park Center FSEIS PE-1544-$S ZE-180-78 ~ In accardance with the prvvisions of Chaptex 197-11--460 WAC (State ~nviranmental. Pvlicy Act Rules) and Chapter 11.10 Spakane Cvunty Cade (Spokane Enviranmental Ordinance) , the Lead Agency. 5pakane County Planning Department and its respvnsible official, . are administering the issuance af the ADDENDUM TO DRAFT SLIPFLEMENTAL ENVIRvNMENTAL IMPACT STATEMENT frr Suliivan Park Center. Accardingly, they have directed the enclosure of three ~ (3) cvpies vf saie3 ADDENDUM. As pravzded itar in Chapter 197-11-564 (5) WAC, this AomENDUM, together with the DSETS, which was distributed to your office on June 21. 1985, constitutes the FINAL SUPPLEMENTAL ENVIR43tTMENTAL IMPACT STP,TEMENT for Su11i,van Park Center. ~ W,5 ~ rJ I- J11/a T,Ee-j'JH L._S L-r'i B $ A ~ r~ rr~-.°~ S a ~e Alo. rro,6 /yo, .S ~ " r//, 57 1,719 0,0 E' ~W-Q /or I .3M17Q" ~ ~ CA-L 4 I ~ i I I r./ G ~ LIflGZ lahc v ~ I tl I I i E I ~o RI ~i' p ~ ~ ' ° r r 1 ~ ✓ i i ~ F6, r ! 1 ~ i ! i i I 4 1 4 ~ M 1 I I I 1 I f 1 M 1 I a ~ Car,jL N , 1 I I G/ 1 f 1 I ~ ~ p I I /I 1 { I ~ rc7,-7 ~ I I l I I I q ~~~e ~ i 1 C i 9 ! I ~ I C~~.~•'_. o ~o ~o ~Q ~o do 69 r0 ua ao !r~ l'CZ r7 f / Z °f ° ~F ~7 10 116- , . xS/ r.!r rs9 ILA -fO 1117 ~ ~ C,rx~►j, P .Y2 " $ ~-7~'• 5 3~~ M140 4" 0 7 I~~~, t i I I ~ ~0 95--2Z 7 scrpQ~, ~'.r~ s ,g 4L A IA E/1 6-n L t- ~ J-----------------.--_--------- ! I -60 ~ ' ~-------°------~~~-^---~~-^--~.~_.~~,~~a--^--~. ` ~ , • ~C - 5A ~ ~i aa _ ~ - ~o qb - . - - - • . • ° ~ ' . . _ ~ F r~~ ♦ +x:~~ ~ G 4' ~..~'C~/~7~/~.~~' /5r~- 'C ?~~4~7 vr~~~ e ~ • r.~r a'`~c,~ Z~2 s re- . . 7'f!~ ~eC I~ ~ ~ . ~ C~~ f Apt A ~ .r. ,:~,l r,7 IV' P -Z ~ X.T T . J • .~'7 r.- ~ ~ ~f" n ~ j ,r~ f , i ~ ~ ~ / ~F ~ ! a~• ~ . ;~2 _ ~ .•~•r r .r- ~ / f" ~ f• _ ~ ~ . . r u~ • - ~ ,s~~ r•~ . - : ~ , - ~ . ~ d - . ~ . . 11'dlSlIiIYGTCII+I S7ATE ; p DEPARTMENT DF TRANSPQHTATION MATERIALS ENGlNEER ' Matereals [.abaratc,ry f 1ace -~:-!~~-c?-~•i• :'.~-••-~~'J~ P. 0 Bnx 167, f)]ympra, WeA 9$504 (Ndailing Address) 1655 Sts. 2nd AWe. Uace 'p' Tumwater, Washington 98504 (Shi,pping Address) T]ear 5ir• 1 have Forwarded by taday's the Cvllewing Fvundation 5amples. ~ ' . . . . . Gontract or - M Sectian f`~^t t~.l~rz_T.~.~....~.'l:a.~~.e~!~.t~......~: 7 " ,~Dt? NU. : ..r s~.~,C.!•ri•'f••'l~.C•"'•.C.s•!:.~:'.L~ .~.•~~f/.! f..'••-....... 4'~---- 5R 1~'0..~•---~--`'~-••... 5ub-5eetion • - ~ ' . 5tatioa z l~ - y~ ~ 1`I - ~T ~i~~•+. i ~ ~]Cf & set ' ole # Tuhe Posnion - [ab R'a_ C7rivr It fJrpth ,n Sampicr C[$s I]esertption - E-3 S/ Y ~ ° ~ ~ 4~~~~~.5l~a r~C'r S s / ~df~ . e-~a ,r 1 ~ -3 I r;' .4 ' c•e.r . ~ ~ , 1 ~ k i i ~ ~ . ~ 1 1 I ~ ' , I coRy wilh samples 1 copy to addressee Yaurs r+ery trvly, ~ j . r.,,r.~ .l.f....._:.'.....~.^.:..... _t...1• ~ L•-•.•.••••• ~ lnsprrrr~e ry FPpM 351-002 DyT REViSED'I18{] ~ 3 . . s~ ; wasFIINcTnN STArE LlEPART1VIENT (}F TRANSPiDRTAT1ClN MATEk1ALS ENGINEER ~ .0.?A n.n.4c . .;r . ' Materials I..aboratvey P'lace ...s.~.'.~ P. Q. Bvx E67, Olympza, V4rA 9$504 (lVlailing, Address) 1655 5v. 2nd Ave. tiate Tumwacer, Washinglon 98544 (Shipging Address) ~ L7ear Stir; f have forwarded by today's the follvwing Foundatien 5amples. +Cvntract or Secfio n In 4!t-b.q,.r1----Arl~-ri-n-x-..... Job No. .......~•~:•---~•--.~t. ? SR Nn. .A.7.r!0... Sub-Section JI~.~...: f.••-•~-~-•--- r-•.'}.'?~ .Ti.~- 5ta~an Offset " Hole A f"~ ` • ~ ~J' - - 7u6e Posit3an LaEs ho Drivr ~ Depth in Sampler Clas. Descrtptian r ro 7Lo - L:ST~ ,~r1'-Gi^ a1r 9 .~~~~r'J~' ~ / . I ~ t. 4::-C"r75 Wo"7'0 !r !J ' 1.~.~}~ ~ / %-2f ~r~~-~ 14- 1, 1 . ~ ~ ~ ~ , ~ ~ p ! ~ ~ R ' 1 copy with samples , 1 copy ta addressee Yours ►+ery truly, • • ~ c? . .l...~, .~d~ r F."" . • , ~ P+ts rNor . C]OT RORM ~ r • 6 ° APPENDIx c 50IL FRUFILE . e~ y DE7ERN4INaT10N DF NQNSIGNIF[CAI1#CE (DN5) Ueseription ❑f eurrent propasal Madification ❑f existing Sulli*van Road interchange ta accammodate planned grawth in the vicinity. Praiect includes two new slin-ramps an tihe noxtfi side of the interchanga. Propanent Washingtan 5tate DepartMent af TrraInsPorCatian LCJCdttD1'1 Df piOpOSaly incZuding streei address, if any In the vir_irniv of rgile nasY 291i60 to 292:17 on SR-90 in Spokane, Washington Lead ageRey Washirwtan 5tate Denartment of `I7rans-Dortatian The lead agency for this ,PropasaY has determined that 1t dves nvt haye a probable significgnt adverse impaet on the en►+Ironrnent. An environmental linpact statement (EIS] is nvx required under RGW 43.21C,830(2)(c}. This +declsicn was made aiter ceview oi e . completcd environmentat checklist and vther inivrmatlon an i1lt rvlth " 1ead ageney. Thls informatian ,i3 aYailabie ta the public oa request. J~ There is na comment perivd #ar ttris L7N5. 1 1 "fhis DN5 is issued under 197-11-340(2); thE lead ageney wirl1 not act on #his prapasal for 15 days from thit date belvw. Gamments must be submItted by Responsable official R°nald H. Rart' P.E. PoSitian/title Iocatian Engineer F'hane (509)456-3020 Address P.O. Bax 5299, Nortth Central Staticrn, Spokane, WA 99205 Date Signature x ENarRONMENTnL cHECKLIsr The 5tate Enviranmental Pakicy Act (5EPA), chapter 43.2IC FtCW, requires all governmenfal agencies to consider the environmentaP impacts of apropasal befare making decisians. 7`he purpose of this checklist is ta provide anformation ta help yc,u and xhe agency identafy ampacts far your praposal (and to reduce ar aVOid impacts fram the proposalr if it can be done) and to he1p t'he agenc y decide whether an E35 is required. 'rhe checklist questions apply to all garts of the proposal, eVen if tYaey aTe ptanned oaer a per6ad of tfine. Attach arsy additional informatian that vvi11 help describe the proposad or i'ts enwirorsmenta1 effects. Be prepared to explain - answers car provide additianal information -reasvttably reIated ta- determining if there may be sagnificant adverse irnpact. A. BACKGROUND 1. Name Df preposed praiect, i# applicable: 5ullivan Rvad Interchange Modification 2. Name af ,proponent: Washingtvn 5tate DeparLment of Tyrmsportaticmi 3. Address and phone numb+er of ,praponent and contact person: kichard L. Larson, P, E. P.O. Box 5299, Narth C.en.tral 5tation Spokane, WA 99205 (509)456-3046 or (509)456-3000 4. Date checklist submixted: 5. Rgency requesting ehecklist: Gdash7 Lgtrm State Department of TYansportata.om 6. Propased timing or scheduie Oncluding phasing, if ap,plicabie]: Project wil1 be imple,mented concurrently wi.th first phase of develop- ment vf the adjacent Sullivan Park Center, a major private conmexcial development. Construction is e,xpeeted within the next 2 to 3 years. 7. P►re tttiere any pians for future additions, expansians, or furthec activity related to vr conneeted witfa this propasa!? If yes, expdaira. No i~ S. List any environmental inivrmation yau 1anaw a'bQut #hat has been preparedf ar wili be prepared, directly reiated to this proposal. An Envixnrtmental Itnpact Statenent and Supplemental EIS were prepared for the adjacent Sullivan Park Center. These doeuments discuss traff iG and enviran- mental consideratians relating to the area, including the currently proposed proj ect. 9. Da yau ksaaw whether applications are penciing fnr governmental agpravals of ather propnsals directly a#fiecting the propesty covered 6y the praposal? i# yes, e xpTain. Apprvvals are currently pending related tcs the 5ullivan Park Center develQp- ment, Approual of the praject is directly related to this groject. Develvp- ment of the 5ullivan Park Center will include constructivn or related transpprtation facilities in xhe area. 10. i.ist any . governrnen# approvals ar permits that wiil be needed #or the propasal, if known. 5tate and County Right-of-Way Use Permits, State and County apprnval of construction drawxngs, 11. Give brief, compiete descriptian of the prraject inciudiang (but not kmited to) its siz.e, general de5ign element5, and ather factors that wiii give an aceurate understanding of its scope and nature. There are severar questians in this checklist that ask you to descrite certatn aspects of the proposal. You dca not need to repeat those answers ❑n this page. This project invalves cvnstzuction of two "slip-ramps" to connect the exist- ing ramps tn Indiana Avenue at the Sullivan Raad/SR--90 interchange. The groject als❑ includes eanstruetivn of a traffic signal at the Sullivan Rerad/ Indiana Avenue intersect3on and intescvnnection tfl the existing Sullivan Road signals. 12. LOCat1Di1 of the prvposaT. Give suffieient information for a person to understand the precise IaGatin.a of the proposed project, imcluding a street address, - if any, and see#ion, township, and range, if krtown. It aprogosa,l wouPd oeeur aver a range of area, provAde the range or boundaries of the sate(s). Prvvide alegal descriptiasa, SirB pIat1y Y1Clf'Y1ty i77ap, and topagraphic map, if reasonatsly available. Spokane County approxim,ately 6 miles east of the City of 5pokane. 5ee attached V3cinity Mag. -2- • e B. ENV1RQNiVIENTAL IEI.EMENTS 1. Earth - a. General deseription of the site (circPe one). F1at, roiling, hilly, s#eep slopes, mauntainous, ather . b. 1x'hat is the steepest slope on the sn#e (ap,proximate percent slvpe)? 2% c. VVhat general types of se1ls are fvund ort the site (far exampie, clay, sand, graveI, peat, rnvck)'? If you knaw the classi#icatian of agriculturai soils, speeify ther-n and note any prime farmland. 5and and gravel, wfth minor amounts of silt and clay. Ncs prixne farnnland. d. Are there surface indacativns of history Qf unstable soils in the immediate ViCFGiIty? 1f 50, deSCC,&be. Na e. 13escribe the purpase, type, and appraximate quantaties of any filling vr grading prvposed. Indicate svurce of #iid. Approximately 2,200 C.Y. af barraw from lvcal sources will be required. f. Coutd erasion occur as a result of ciearing, constructivn, or use? If sQ, generally deseri6e. Ttae patential exists for minor erosion during construction. Erasion wi11 be carefuTly controlled thrvugh tempnrary erasi.on cvntrol measux'es. g. About what perce nt af the site w+i ll be cavered with imperVious surfaces after prajgct canstructian (far example, asp'hait or buildings)? - Approx3mately 30f of the araa-vf new right-of-way will be coVered with ~ asphalt. -3- ~ r. h, Prapased measures to reduce or contral erasian, or vther irnpacts to the earlrhz i# any: Temporary erosion cvntrol measures such as siltatian fences, straw bales, etc. will be required during constructian. Al1 disturbed areas will '6e hydrvseeded during corapletion af eonstrucrion. 2. Air a. What types of ernissians tca the air would result from the proposai (far exampIe: dusz, autvmDbile, otEors, industriaL waod smoke) during construetion and when the prvyect is cvmpleted? If any, generally describ+e artd give appraximate quantities if knawn. 5ome additional dust azad censtruetion equipment emissirans wiii vccur during canstruction. Ncs significant change in emissions will occur alEter comple- tion of the praj ect. b. Are there any off-site saurces nf emissions or odar tha# may affect yocar prvposal? IS 5C7r generally describe. None c. Propased rrseasures t❑ reduce or control emi5sivns or o'ther impacts to air, if any: ' Mare effzcient traffic flow may result in a sl~ght long-tezm re+3uctivn in vehiele emissians. 3. Wa#er a. 5urface: I) T5 tF1ePe a17y 5uCfc'iGe water bvaiy an, or in, the irrtmediate wicinity af ihe site (incfuding, year-raund and sea5vr+a1 strearns, saltrvater, iakes, pands, wetlands)? If yes, describe type and pravide names. If apprcapriatg, state what strearri or river YY f l4W5 lflta. The SpAkane River is approximately 400 feet north of the interthange and will nat be affected by [he pxoposal. . w~- '4. 2) Wi11 the project require any wflrk oVer, in, or adjacent to [within 20a feet) the described water5? If yes, please describe and attach availabfe plans. No 3) Estirrsate the arriount of f i I 1 an d ciredge materaal that would be piaeed in or removed from surface or wetlands and indicate the area of the site that wauld be affected. Indaeate #he svurce of fill material. ZVone 4} Wil1 the prvpvsal require surface water withdravvals or didersivns? Giae generaT description, prarpase, and approxirnate quantities if knovwn. Ncs 5) Daes the prapasa! 1ie within a I00-year flaodplain? If so, nate lacatian on the site plan. Na 6) Daes the proposal involve any discharges af wa5te rnateriafs ta surface waters? If so, describe the type af waste and ar+ticipated Vvlurne of discharge. No b, Ground: 1) Wi11 graund water be withdrawn, or wil1 water be dicharged ta ground water? Cive general description, purpose, and ap,proximate quantities if known. Na 23 Describe waste rsiateriai that will be diseharged into the ground frorn septic tanks or other sources, if arry (iaf example: Demestic sewage; industriax, containing the faltmwing chemicals agricultural; etc.). Describe the generai ~ • size of the system, the number of such systerns, the nurnber of houses to 'ie served (if agplicable), rrr the number of animals an cumans the system(s) are ex,pected ta secVe. N/A C. Water Runa#f (including storm water): 1) Describe the svurce of runaff (including stvrm water) and rssethvd of callection and disposaP, i# any {include quantities, if known). Where will this water flvw? WiI1 thas water flovv rnto ather waters? If sv, r,esCribe. Surfaee water will be collected in grass-lined swales and disposed of in dry wePls. 2) Couid waste mateclais enter graund or surface waters? If sa, generally describe. Automative chemical cauZd wash from the road surface to the adjacent ground surtacs, and percolate inta the ground water. d. Prvpvsed measures ta retiuce ar Control surface, grvund and rurtQff water im pact5, if any. GrassTlined swales will be used to colleet and canvey surface runoff, prvwiding "b3afiltexing„ of the runofif prior to disposal i.n dry we11s. 4. Plants a. CheCk gr circle types of r+egetatian found arr ihe site. decidusaus tree: al+der, rnaple, aspen, nther evergreen tree: fir, ceclar, pine, vther a shrubs x grass Qasture , crap ar geain -6- wet sail plants: catrail, buttercup, buIlrusha skunk cahbagey ather water plants: water lily, eelgrass, mi4foil, 4ther other ty+pes of Megetation b. What kin,d and amount o# vggetatiors will be remQVed or altered? Native shrubs and grasses will be remvved fron abv►afi 1.0 acre ta accommvdate the new ramps. c. List threatened or endarsgered species 3cnvwn tv be on or near thc site. None d. PrDp(35@d l3Ttd5C8p1ng, use af natrve plants, or other measures ta ,preserve or enhance vegetatian on fhe site, if any: A mi.xture of wheat grass and fescue wi11 be establi.shed an tdze new cut and fill slopes. 5. Anirnals a. Circle any birds and animals whieh have been vbserved on or near #he site or are known ta be on or near the site: birds: hawk, herori, eagle, songhirds, other : marrsmals: deer, bear, edk, beBVer' ptheC: ;;ice,. s.Suirrels.,. rabbits fish: aass, 53Ii'TlQT], trout, nerring, shellfish, athe r; ..,none.... b. List any threatened or endangereci specaes'known tv be on or near the site. Nane c. Is the site part of a mygration route? If so, explain. No d. Fraposed measures ta perserve or enhaRce wildiife, if arsy: None -7- 6. Energy and Natuzal Resources a. M`hat kinds of energy (eiectric, natural gas, oil, waod stflve, saaar) wiTl be used to meet the cvm,pleted prv}ect's engrgy needs? pescribe whether it wi11 he used for heating, manufacturing, etc. None b. Wau1d the projeex affect the potential use of s+olar energy by adjacent prQper#ies? If so, generaily describe. No c. What kind5 of energy conservatian features are ancluded in- the plans of this proposa17 List other proposed measures to redute ar cantro4 energy impacts, i# . an y: This graject is desagned t❑ improve vehicle access to and egress fram 1-90. In dving so, trarael times, and therefore, fuel cansumptian, wi3.1 be decreased. 7. Envirarmentai HeaTth a. Are there any environrnental health hazards, including exposure to toxiG ehemicals, risk af fire and expYosion, spi11, or Ffa Zardo11S WaStey that vvauld occur a s a result of this praposal? If so, describe: Nane 1) Describe special emergency services thax mig,ht be required. None 2) PrapQSed rneasures t❑ reduce or control environmental health hazards, ef any: ' Nerne b. No'sse 1) 1Vhat types of noise exast in the area vvhich may affect the project (for @xampfe. trafflC, eguipment, operation, otheC)? None 2} 1X'hat types and 1eVels af rsmise would he created by or a5saciated with the project on a sh orL-te rm or a Iong-terrn basis (for exa mple. traffic, tanstruetiors, operatian, ather)? Indicate what h❑urs noise vaould cvme from the sfte. 5ame additinnal noise would oceur during cernstruction, principally between 7:00 AM and 6:(}0 PM. No additionaT lortg-term naise will be generatecd by this prvject, althvugh the new ramps wi1l cause a slight redzstributian of the noise 3} Propvsed rr+easures to reduce or control naise impacts, i# any: Pattern. -Non e 8. k.and and 5harelirae Cdse a. What is $he current use of the 5ite arad ad'yacent praperties? Sita is currently used as an interchange. The adjacent land to the north, east and west is vacant and planned for a regional shopping center. SR-90 lies south of the si[e, b. Has the site been u5ed far agraculture? if so, describe. No c. L7escribe any structures an the site. Existing entrance and exit xamgs f or SR-94. d. Wil1 any structures be dernolished? If so, what? No e. 4[`hat is the current zvning classification of the site? Restricted industrial zorae ~ f. What is the current cornprehensia►e ,plan dessgriation c+f the site? Industrial -9- ~ ~ . g, 1f applicabfe, what is the eurrent shvreline master program designation af the site? , NI'A. h. Has any part af the sete been classified as an "eRvironmentafly sensitive" area? if so, specify. " No i. Rpproximately how rnany peopIe rarould reside ar work in the camAleted prvject? Nona j. Approxirnately how rraany people would the cornpleted projec# di5place? . None k. Propased measures to avoid or reduce displacement impactg, if any: N1A i. Aroposeci measure's ta ensure the proposat is corrapatible with existing and projected lancf u5es and pTans, if any: i The propasal is a modificativn af an existing use, designed to imgrvve travel £low thraugh the Sul13van/Imdiana intersection. 9. Hvusing a. Ap,praxnmately hvw manyy units would be proVided, if any? indicate whether high, rrsiddle, or 1ow-incorne housing. None b, Approxlmteiy how many units, if arry, wauld be eiimina#ed? lndicate whether high, middle, ar low-incame housing. _Nona C. Praposed measure5 to reduce or control housxng impacts, if any: None ~q[}_ 10. 1°►esthetacs a. what is the tallest height of any proposed structure(s), not including aflleT1f785a what is the principat exteriar tsuilciing material(x) proposed? • proposed artian is at grade b, 1Vhat views in the i€nmediate Vicinity would be aitered or obsiructed? Views ta the nor[h of the I-RD cerrridor wauld be altered. C. Proposed measures ta recisaee vr cantrvl aesrhetic impacts, if any: Nvne 11. Light a.nd G1are . a. What type a# light or glare wi!l the proposal produce? What tame of day wauid it mainly oceur? Some Iightiing of the facility may lae needed during constructivn. A#ter cflnstruc- tion street ligtots will 6e installed. Vehkcles travelling on the new road will use headlamps while travelling during dark ❑r heavily overcast periods. b. CQUId light ar g1are from the firaished praject be a safety hazard ❑r interfere with uiews? Na c. tiG'hat existang oft-site smurces af light or glare may affect your praposal7 Nvne d. Propased measures to reduce vr cantrol light and gIare impacts, if any: The raads and ramps are designed to avoid adverse 3.ight and glare impaeCs between vehicles. 12. Recreation a. What designated arad infarmal recreativnal apportunities are in the imrraediate ►ricinity? Nane -11- 1 ~ b. 'A'ou4d the pro;aessed preaject rlispZace any existing recrealianal uses? If sa, de5cribe. No c. Proposed measures to reduee ar ccantral irr9pacts on reereatian, ineTuding reereation opportvnities to be prowided by the praject, if any; None 13. Hixtoric and Cultura! PreserVation a. Are there any piaces or abjects Sisted an: or praposed far, natianal, state, vr local preservation register5 knawn to be vn or next to the site? If so, generatly cfescribe. NQ b. Generally deseribe any }andmarks ar evidence Af YS15toYlC, archaeatvgieal, , scientifac, ❑r culxural impvrtance knowrs to be an or next to the site. Nane C. Rraposed measures to reduce ar cvntrol impacts, if arry: None 14. Tran.spartation a. Ider►tify puhlic 3treets and highways serving ihe 5ete, and desCribe proposed aCCe55 #p th@ e?Li5t11Zg StEeEt 5yS'~em. 5how vn site plans, ii any. The site is sexved by 5R-90, Su1Tivan Aoad artd Indiana Avenue. Aceess between SR-90 and Sullivan Road i.s currently proVided by the existing entrance and exit ramps. Additional ramps constructed with this praject wz11 connect 5R-90 to Ind iana Avenu e . b. Is 5ite currently served by public transit? lf not, what is the rapproximate distance to the neare5t iransit sto,p7 Na. -r2- . ~ , .r . . s 7 ..V , _ . .A....,._~ . . _ ~..S.q. . . ~ r• ti c. How ma,ny parking spaces would the eomgleted project have? Haw many would the project eliminate? Non e d. lt'ill the pr+oposal require any new raads or streets, or imprvvernents to existing roads or streets, not ineluding driveways? If so, generaily describe (indicate ►Vhether publiC or private). fihe praject i.ncludes construction pf new freeway ramps to connect to existing ramps, . e. 1`'i11 the project use (ar vcCUr in the imrnediate viciraity of) water, rail, or a'sr transpvrtativn? If so, generally deseribe. An existing rail Zine i.mmediately north af the project will be abandoned prior to constructinn. f. How many vehicular trips per day woutd be generated by the cvmpleted pro;ect? If known, indicate whera peak wolumes wotrld occur. Nane g. Proposed measures ta reduce or c9ntral transpQrtation irrspacts, if any: The improveinents included in this project will help contrvl transporta- tiQn impacts related tv growth in the va,Giniey flf the proposal. 15. Public 5ervice a. Would the praject result in an increased need for public serWiees (for eacample: fire ,protection, peslice prbieCtIRn, health care, schoals, ❑ther)? If sa, generaliy describe. No b. Proposed measures ta reduce or cantrol direct irnpac#s on publie serVaces, if any. No -13- 16. Ut1l1t1E,5 a. C:ircle utilities curreratly aaaila'b]e at the 5T#e; electricity, natural gas, water, refuse serVfce, telephane, sanitary sewer, septic systern, other. Nane b. Describe the utilities that are praposed for the prvject, the utilaiy proViding the serviCe' and the genera3 canstruetivn activities an #he site vr in the immediate -Wicinity which might be needed. Nane C. SIGNATLgRE The above answers are true and comp2ete ta the best Qf my knowledge. 5ignature: RICHARA L. IAR.SON, P . E . Distri~t Design/Plans Ezgineer pate 5ubmitted; 4/PD(EN)-5 -14- k 6s impson Engineers, Inc. CIVIL ENGINEERS ANa LAND SURVEYORS H. 909 Arg~vnrae Road - Spokane, WA 99212 {509} 926s1322 • Fax: 926-1323 T'O. B1 1 i Hq-~ e 1'~ -s ~7 ~r1e- _~~i_ F_Vt~~r+Ps~v^i 1 SUBJECT. InA-Ionc- Aue-. Pii'1*-tc ~o ~AS: L.14Y1ed ~ A DATE: d I te" C~- „L 45Z vr% r o, c, rpnj±,-~ a cs.,q_r rLtn,,,. cx r c r cj rL.- Yx, ^ ~ -~c. . ~ acc r R a ~as c~ ~ ~ d - r a c (;Lq- ( -3 ~ z, + p 19 e. Sl. 4.,~rs ~ ~ ~ `~r•. ~c ~ ~ + L o. s~•Cs,s~~ ~ ~r ra .._e~ bC2_ cL ri ~ A-r. e1.&.g'^ I n ,r~ C C-r sv ~ ~ ,r ~v. r-p- S llFit ~ ka~f ts- SA` a T li .2,r&.,l-- 2_mjIr5 c= .~T' ,..j1 1_ J] ~J J d C e:L t Cc~ 14:+f,Dri J'. . , w ..e .r « nw. .r E V Y t$.'I EtiG1HEER ~ - = ,igned V ~ ~ C~ - 5 P [D I-r- . A 1~' JF- ~ C] u i*•1 T Y ❑FnC& OF THE CoLTN`t"Y FNGl1YEER • A DPh1151C_1N t]F "['HE PUBL[C WORK5 DEPARTMFIV'1' Ronald C. Horanann, C'.E., County E-ngineer Dennis M. 5coct, P.E.. Y?irertor T3e~ember 8, 1993 Mr. Chuck Siartgsan, P. 'E-1. Siinpsan EngiMeers' Inc. N. 909 Arganne Road Spakane, Washingtvn 99212 RE: 5ullivan Park Center PE-15fl4-85 Dear Chuck: ~ We received asubmittal on oecember 1, 1993 frpm yQUr office for the aboVe referenced praject. Saici submittal a,s a partial submittal of ghe conditians which must be met for Phase Il. The apprraved conditions call for a plan far the upgrade af the intersection at (5R 27) Pines and Indiana ta be submitted to the County Engineer as specified in Condition ,#9 ❑f the Condition of Approval far the abcave referenced project. Condition #9 says that WSDOT approval ❑f the intersection design i.s required. We can nat rewiew the plans far Indiana west to (SR 27) Pines from Phase I limits until we hawe the requiieed appravai from WSDGT. ~ • Because the submittal is not consistant with the CQnditians of Apprcrdal, we are returning yaur submittal ta you with n❑ review being dane at this time. If you have any questions, please cal1 me. Sincerely, . k William H.("ings, PE Develaptnent 5ervices Engineer/Manager c: ' Gary Kenna1Y Ron HQrman , W 1026 Broadrway Aae. 5pcakane, WA 99260-0170 (509) 456-36{10 FAX (509) 4564715 ~ - 6& impson Engineers, Inc. CiVlt ENGINEERa 14ND LANa SURVEYURS N. 909 Arganne Road • Spokane, WA 99212 (509) 926-1322 • Fax: 326-1 323 TO: 13ti ~L HEMMflqG.s, P~F. SpOKAi46 CaL4NTV EN6'iz- I)EP`fa 5LIBJECT: :5ULL1VArJ CENTEIZ XNDiANA, RVENuC 1DAYE: I I lv%cku8e-d fQr 3our r2view qre Dr ;vtfs of fhe- s$ree-+ pf eev►s aKck Q,+k2 <Lrrc e- Msv . iimtlu8e.A core- eot>ie5 f ~~~k\cxwa Av~~ue- Y she e-fs 3 i-k ro t,~~ 0 ( ar 4?-v oLt z~~ t -E-~ r R e- sir ee~f- viav%s h~~ e be.-e,k -~ov r- ove. J bu Svgicqhe- Cczu~+tA , ~ee- (~Oo-u Neisavi af q Ke-. ~ 4 ~ C.csu~'~'~ yv~~.'Viau~ e v~P- vi -Y ot q rr o V cc~.~ _ lu~ ew. 5lgned STORMWATER DRRINRGE CALCULATZbPdS F0R - aULLIVAN PARK CENTER INDxANA AvENuE N ovember , 1993 RE" EI` ~ ~ 1 t99J ~"~LA~fE COl1MY ENGIPlEEl4 ~'repar°ed by: Sxmpson Engineers, Tnc. Narth 909 Argonne Road Spakane, WashziigtaPi 9 9212 • TABLE CJF CC}NTENTS I. Summary IZ _ Stormwater Dt'ainage Ca],culatior'is fG1P IFldldfl"d Avenue -from 5tc1,t1C7f°1 3+00 tC1 23+50(59+03. 53) dC1d Stat1CJf7 594•03. rJux 1:C] 63'F{'1~..~' . 38 (ESasll"1S CC-N, 8B-'N, and A'^N) TIT _ Indiarsa Avenue curb grade calculaticaii sheet. IV, Attachments: 5treet plans and prnfiles ' WAS O ~ • ~ r C:FFt['i-~! PUPLlC DOCUMENT ~ ~ sg6r , - SrOkC+4NE C'.)s1ivT r` EhaG1NEER'S (3FFlCE 0,~, 0 R I GF IN A L "VAL ~ROJECT # ~ EXPIRES 7i!.i -9$ P ' ~~~~ITTAL # ~ RETURN T~ COUNTY ENGINEER SUMMARY. Tndzana Auenue is divided into Basins; A,B,C,D,E,F,G,N,BB-N, and CG°N. Stormwater from asphalt flows along ttie curb gutters and into the grass swales througn curb cuts located at IOD foat intervais in tf7e curb profile. 8asins A,B,C,D,E,F,G, arrd H(Statiari 59-►-00 to 157+60) have already been ` approved by Spokane Cour,ty. This repcart includeM drraii-iage calcul.ata.oi7s for Basins GC--M, B8-N arsd A--N (Station 3+40 ta 23+50(59+03.53) arid Statian 59+03.53 to 63+05.88 on the north halt a°f Indi.ana Avenue)- As specified i,n the "Guidelir,es for Storrnwater I°1anagerrient",page 5-4; where a sloping swale is less than 140 feet long, and slopes 1% ar lc.ss, the swale may be cansidered f1at. Berms alarrg tY~e s-wal.e wi11 abstruct the swales, creating a seri.es af indlvidual swales tl-iat arLm 100 fect lang ar,d less thars 1.0%, and 6 a,nr-hes deep between the berrns. Tfierefare, each swale wi11 be cansidered as flat, 5tormwater° will fa.li aach sw~.~1e to a 6 znch ciepth and thert averflraw across each berrn until the water reaches the final swa1e and drywel.].(s) at low point. ' -rhe lRaticanai/ 8owstring Methad was used to caiculate the type and number ❑f drywel ].s needed 'Fa reach basin based on the sta rage capaci ty at the swale_ ~ 5imDsmn Engiaeers, Inc. Project: Ir' ia Avenua ~ 5 ti._ r, r1e, 5 N 949 Arganne Road 926-1322 i 3ah Ho.: _11549 a9Oane, WA 99212 axsC.k.: 15 File Hame• Sullivan Park TYPICAL SECTIOH DATA " 12-Nov-93 RaadWay half w3dCh ENiER--> 47,5 08:26 AM Road Name EHTER--) Indiana Avenue Left ar Rrght EHTER--> Left ~rown af ~~Vew~~+~~ re~ res~~-t~ ~e,n~re~ ii Cur~ lype 7YPE B GOUNIY f~v~:. ~.raw~► a.r~e,w~e.s Zo lef Station Tnterval EnTER--7 SU o~ eXiSti+n~ Sok~h Curb. h4ININuIi MAXIMUM (cgaww) Curb EL. Curb EL. Edge pavE. CENTER tSLDPE EDGE DIST. % SLOPE EDGE DIST FROM (-4.5k 1-2% to GuCtar LIHE CENTER- PAVEPIENT C]L y0 CfL 10 AAVEhENT EDGE PYMT,trnm f/P + FROM EIP f SELfCT- De;ign daD Curb STAiION ELEYATIOiI LdHE ELEYAFiOft E/P EDGE FAVE % 5LOpE TO CURB CURB HGT) GURB HGI] ED ELEV t GRADE % Graae P-P-289.20 0.04 1455.24 1 300.04 1965.37 1964.95 • 2.76 1365.26 1565.31 1945.24 -3,57 4.4n 354.44 1465.72 0.74 1965.28 9,66 7.18 1465.41 1965 55 1965.51 -2.73 0.44 ~ 445,30 1966.14 4.76 1945.75 0.85 12.00 1965.66 1955.93 1965.73 -3.86 0.40 ~ 450.44 1966.43 0.65 1965.90 4.34 15.73 1465.60 1905.98 1965.91 -2.46 0.44 544.44 1966.67 4.48 1966.24 4.68 20,45 1465.75 19t)6.24 1966,11 -2.65 0.40 ~ 550.411 1965.95 0.56 1956.51 0.54 25.68 1965.81 1900.41 1966.32 -2.38 0.42 k P- A P-644.00 1967.20 9.54 1967.04 17.50 -0.91 1.46 30.00 1966.14 1966.50 19c6.64 -2.75 0.64 050.0O 1967.69 O,98 1967.26 17,60 -2.44 0.44 29,96 1966.37 1967.08 1466.96 -7.41 4.64 740.44 1968.14 4.90 1947.66 17.50 -2.74 4.80 30.00 1966:76 1967.48 190.29 -2.65 0.66 750.04 1969.58 6.88 1967.83 17.50 -4.29 4.34 30.00 1956.93 1963.65 1961.64 -7.02 0.74 804.40 1969.13 1.10 1968.42 17,54 -4.95 1.18 34.44 9967.52 1968 24 1908.17 -2.23 1.06 850.40 1959.75 1.24 1469.18 17.74 -3.22 1.52 29.80 1968.24 1959.40 1468 87 -2.46 1.40 400.40 1974.37 1.24 1964.79 17.50 -3.31 1.22 30.04 1968,89 140'5.61 1969.60 -2.02 1 46' 950.00 1971.19 1.64 1970.76 17.64 -2.78 1.82 29.94 1969.81 1974.52 1470.37 -2.09 1.44 1000.00 1471.42 9,46 1971.53 17.54 -7.23 1.66 34.00 1970.63 1971.35 1471.05 -3,44 1,46 1054.40 1972,27 0.70 1971.86 17.70 -2.32 4.56 24.89 1970,97 1911.68 1971.51 -2.00 9.92 1144.44 1372.05 -0.44 1971.67 17.50 -2.17 -4.38 30.00 1970.77 1971.49 1971.41 -2 26 -0.24 1150,00 1471.63 -0.84 1971.27 17,55 -2.34 -4.44 29.45 1970.32 1971.04 1571.43 -2.42 °4.16 1240.44 1972.35 °0.56 1474.42 17.50 -1.46 -0.64 30.00 1974.02 1970.74 1970.72 -2.05 -0.62 1254,40 1911.19 -0.48 1974.82 13.44 -1.57 °0.20 30.14 1909.92 1970,63 1970.41 -2.78 -0.62 1304.40 1974.67 -0.98 1970.37 17.04 -2.46 -1.40 30.54 1469.40 1974.13 1970.10 -2.09 -4.62 1350.04 1974.43 `0.48 1974.42 17.44 -2.36 -0.60 34.10 1969.12 1969.83 19e9.79 -2.15 -0.62 1440.04 1974.23 -4.40 1469.77 17.74 -2.60 -0.50 29.80 136E.S6 1969.59 1969.50 -2.31 •0.58 1450.00 1970.04 -0.46 1969.55 11.54, -2.57 -0.44 30,44 1968.55 1969.31 1969.30 -2.23 ~,44 1504.00 1964.95 -4.14 1469,60 17.80 -1.97 0.14 ,29.74 1965.12 1969.42 1469,13 -3.43 -.0.34 . 1550.04 1959.17 -4.36 1969.36 17.30 -2.37 -0,48 30.24 1908.45 1409,17 1968.45 -2.77 -0.35 1640,44 7969.59 -4.36 1969.19 17.74 -2.76 -0.34 24.80 196e.30 140.41 1968.87 -2.67 -0.26 1654,40 1469.57 -0.44 1969.28 17,74 -1.64 0.18 29.60 1968.39 1969,14 1468.90 -2.56 0,24 1740.00 1969.54 4.24 1969.39 17.70 -1.09 0.22 29.84 1968.54 1904.21 1964.10 -2.39 0.32 • 1750.40 1964.71 0.04 1964.30 17,64 -2.33 -4.18 79.94 1968.41 1969.12 1969.08 -2.13 -4.04 IBOQ.44 1969.48 -0.46 1969.07 17.64 -2.33 -0.46 29,44 1968.18 1968.89 1968.88 -2.02 -4.40 " 1854.40 1969.26 -0.44 1468.90 17.34' -2.00 -0.34 30.20 1467.94 196e.71 1466.68 -2.11 -0.40 1904.40 1964.03 °4.45 1968.67 17.50 -2,46 4.40 30.40 1467.77 1968.44 1966.46 -2.42 -0.44 1950.40 1908.84 -0.38 1956.50 17.44 -1.95 -0.34 30,10 1467.64 1968.31 1968.28 -2.12 -0.44 2004.00 1968.69 '-0.34 1468.33 17.60 -2.45 -4.34 29.94 1967.44 1408.15 1968.08 -2.24 -0.44 7450.40 1468.54 -0.30 1468.11 17.54 -2.46 °4,44 30.40 1967.71 1967.93 1961.88 -7.16 -4.40 2104.40 1958.29 -4.50 1967.95 17.54 -1.94 -0.32 34.04 1967.45 1467,77 1967.66 -2.30 -0,44 7154.04 1968.04 -0,50 1963.57 17.24 -2.15 -0.56 34.30 1966.76 1967.48 1967.48 -2,44 -0.40 2200.00 1467.84 -0.40 1967.48 17.70 -2.03 -0,38 29.80 1906.54 1967.30 1907.76 -2.07 -0 40 F+..? 2254 40 1967.58 -0,52 1967.32 17.50 °1.49 -0.32 30.04 1965.42 1967.14 1967.48 °2.19 -0.40 2304.40 1467.46 -0.70 1967.49 17.70 -2.09 -4 46 29.84 1966.20 1966.91 1965.88 -2,10 -4.40 2336.33 1906.74 -0.39 2354.40 1966.68 -4.44 1..?- . . ~ - - - - _.I , - - I.TA_L?INN Fl, - J'•'°,,f ~ - - - - S u l.. Li Uf. cul C E N TE 9 Z r3E NV. t15og ~ •-~~'•-~T~---l`-'~~_p.~~v_~L~ . . - 'F>65 IN.---N_-___----__H.~._~. -T0_~.~f5o_ L•p, . - - - 5 q 613-~05. 86 ~y - '3 - - • ' - " _ _ ' ' - - [ ~ - - _ ~fol 'T~~ ~ - - - - • ~ l`~~~Z.'l~ 'To p•~. ~~-f50 ~ (5Z.`a.78)( 4r1. S) 2.5~ ❑~4~5,5 ~_1 33 ~ ~$~.33) Z$ 4116 S, -i- Z. 8 1~~.86~=rv T. ~z+ 6z-(-1 -1 z-~i~~ ~~.o+ ~j - t ~ ~~F 46 ( .9 rZ s ~NT ~D tn A-~z.~~ ~ fl.~z°in uo 4 Q O ~y u'1 CI t] p C7 p ~ ~ - ' - ' - - - - _ _ t' d' 0 rn t+'l d N [`i 1 ~ I I I ~ ~ I ~ ~ s EI . ~--~-----.-_j- a- - -l - ~-I ti~.~,8~' - lso f Iod foo' ~ 4DO; ~sa y,0fa.;}7 I lAt7 I lvci I IDV I~ - • _ - - . . _ _ ~j - - - ~ • • ~ ~ ~ r~ ~ ~ ~ J~ - - _ . - - - - - _ - - _ •r1 • ryj - - G - ~ S? ~ a. n. v~ ' ~r ~~plF, A, pFLY wE U ar ~e GtuiizEv cfs ou~t) __w_ __y_ 2~~,~_-~To~a~~~ g - ~►a. _ l °l 3 ~ - - _ _ . . ~.~_~U►_~?~~_ _ _ .~_l, --W-----~--__ - ~ - - - N/f~. IST olz Ara 6"----~ ~ ~ -r ~g,4 t 5 ~-1 ~ ~ ~ ~ 1~30.13 F~ ~ _ _ ~ ~ a..-- - _ _ _ _ ~ . ~ ~ ~ . _ . _ . . - - - . _ -CVa3p f'c~~-- 51101 F-T - 80W5TRiHG METHOD (TEN I'EAR 5TOR14 DESIGH) PR0.TECT: 11509 7`IHE OF COHCEHTRATION (minutes) DETEHTIUH BASIH DESiGN _ BASIN: Indiana A(N) REUIEM: RM Tc (ouerland) Tc (gutter) Areas liC°, R*C HUMBER QF UR'fWELLS FROPOS$D DATE: 15-Hav-93 1 5ingle (typ 0 nauble (tYPe B) Ct = 0.15 L2 = 625 1.06 0.90 4.954 p Pond #loor area 21 = 0.167 0.00 D.Oi~ 0 Total Area (caic. ) [see HI) 1.06 Li(A] = 47.5 az = 12 O.an 0.00 o Time of Conc. (calc.) (see Iil) 5.21 N(A) = 0.016 B= 0 0.00 0.00 0 eomposxte }=c„ (calc. ) (see hi) 0,90 s(A) = 0.025 n= o. ni6 0.00 0.00 0 Time of Cpnc. (mi.n) 5.21 s= o. nDa 030 0.40 a Ar2a (Acres) ` 1.06 Tc (A) = 0.38 d= 0.478 0.60 0.00 0 C' Fsctor 0.90 Total A Comp "C„ Impervious Area (sq. ft.) 46297 vI(s) = a TG (gu) = 4.83 1.06 0.90 Volune Pmvided (cu. ft.) 208: 3554 storm (tot 3554 N(B) = d surfdoe: 3554 5($) = 0 Tc(A+B~ _ •0.38 uJg: 0 Q--C*i*A= 3.06 Wtflow (cf5) 0 0 0.3 Tc (B) = 0.0 Area A C" €actor 0.95 fic(tot.) 5.21 Q(est.) = 3.00 Z, Tntensity 3.14 #1 12 J3 14 #5 #6 #7 A = 1.389982 Time 3"ime Tntensity Q dev. V in V out Storage WP = 6.2405 Inc. Inc. R = 0.2227 (min. ) [sec. ] (in./hr. ) [cfs] (cu. ft. ) fcu. ft. ] (cu. ft. ) v = 2.16 (A*C*#3) putf.*#2] [15-#6] Te (total) = Tc (overland) + Tc [gutter] Tcfgu) = 4.83 Tc (averzand) = ct*[L1*Nf5^0.5]^0.6) Q(est) - 3.00 5.21 312.8D 3.14 3.D6 1256 D.Od 1256 Ct = 6.15 LI =Length pf Overland Flaw Holding = 22.27 5 300 3.18 3.03 1220 0.00 1220 N = frictian €actar of overland flow (.4 far average grass tover) 1a 600 2.24 2.14 1509 6.00 1599 S= average siope af Dverland flow 15 900 1.77 1.69 1699 0.00 1699 Tc (gutter) = Length [ft.)JVelocity (ft./sec.)/60 20 1200 1.45 1.38 1807 0.00 1807 $_Battflm width of gutter Qr d'atch l 25 1500 1.21 1.15 1854 0.00 1854 21 =inverse of crass slppe ane ot ditch ' 30 1800 1.04 0.99 1$91 b.GO 1891 22 _}.riVeISe qf Cio55 51ope twD df f3itCh 35 2100 0.91 0.87 1915 D.00 1915 d= depth Qf P1❑N in gutter (estimata+ check estimate wath F1ow) 40 2400 0.82 0.78 1961 0.00 1961 Area = d*B+d"2/2*{21+22] 45, 2790 0.74 0.71 1981 0.00 1981 Wetted perimeter = B*d+ErrSin(atn(1/21))+lJsin(atn(1I22)}] 5a 3000 0.5$ 0.65 2015 0.00 2015 liydraulic RadiuS = R= Area/Wetted PerireLer 55 3300 0_64 0.61 2080 0.00 2080 Velveity = 1.486Jn*R".557*s".5 60 3500 6.61 0.58 2157 0.00 2157 Flvw = Valocity*Area 65 3900 0.60 0.57 2293 a.60 2293 n= 0.0I6 fQr asphalt _ 70 4200 0.58 0.55 2353 0.00 2383 s= longitudinai slope of gutter 75 45[}O 0.56 0.53 2461 0.00 2461 F1Qor outflow _(.35"depthlhr. per sq.ft. fTaor) * (1 ft depthf12") ~(I hrJ3500 5ec) 80 4800 0.53 , 0.51 2481 0.00 2481 =0.00000833 cfs per sQ.ft. of floar area 85 5100 0.52 0.56 2583 0.00 2583 90 5400 0.50 0.48 2627 0,00 2627 95 5700 0.49 4.47 2714 0.00 2714 100 5000 0.48 0.46 2796 0.00 2796 DRAItYAGE POM] CALC[1LfiTIOHS Required grassy swale pond storage vaiume ' = Impervions Area x.5 in.J 12 in./ft. = 1929 cu. ft. pravideci: 3554 cu. ft. OKI, DRYtdE3,L RE)QUIREMENTS -10 YEAR flr"SIGIi STOR?1 Haximun starage required by BQwstring = 2796 cu. ft. I prvvided: 3554 cu. ft. Ox! Nmber and type af Drywells Required Single 0 Dauble ~ ~ l , ~ _ ;~.1l L L t V fi ti 3D F r~ia, - - ~ - tiJ8/`?.2~ wM) - - - - - - 59 ~ o 23, S~~ T~ 61? t •~~u~'6 _ DP~►~f~J.C~- ~~~RY---! CC~+~ ~ - ON GoR-fariut]As .P-ppE 0..~ Q3~ _ - ~ ~ . ~ . WrA~ ~ v~~~~ 2- , ~.~~,~r~~v - l~ yf 7• ~ - ~ - - ~ . _ . - - ~ _ _ - - ~ « - - - - - - - - - - .~r`~ ~~i ~~~r~1l;i~//~~~' ■%l/~~%~'~%,%~'~//~~M~~/'~~~"` ~ ~~c~ o~ '~~~s'''t - • - -...._a • ___.3: ~•-~~1~'-~~ ~ ~ti~f~7~3'.1 . - _ - • - _ _ - _ _ _ . . _ _ _ - - • - - - - - -4-F - -I0'Da W A l.-F- 1'tH -0.~'71--IitGK y13 ~GIZ M' _ .v. - - - ' W-~-° - - ~ .a_ __r~ - ° _ _ - - ; • ' • DEP7H OF FL0W-y- FEET ~,ZV3 .oz os fld os .os os .30 x~ s .a a 56 r e.9 +.ai a ' ' ' ' ' 1 E " ' ' 1 I ! .e f ~ 4-1 ~ • 4.~d ~!-i~ ~ s - • ~ ~ ~ e I ~ ' 1_.~~ ~ ~ a ~ ' ~ f - 11114 ~ .2 , Ln i_ ■ I i ' ~ I~ ~ Q b I I~~i- ~ ~ 0e - G I ;~j I ~ a IT ` ~ .06 os I ~ I. ~ l 1 I .G4 vok --4 . .V y ~ I I ~ ~k. ` l I 41, i 6 ~ ~ i ' ~ ` ~ I ~ • ,-;-t-- . N ~ (a) dISCHARGE PER FODT OF s LEAiGTH OF CIJRB QPENiNG r- 1NLETS WHEN iAfTERCEPTING .s ~ IflQ °Ia OF GUTTER FLQW ~ ` ~ ~ 4 I I I (b) PARrIaL INrERcEPTIoN QQ RA1'1O FDR 1NLETS C]F ~ L LEN GT'H L E SS 7HA N L Q ~ ~f`° I ~•,z . 17 oop'~~ p ~ ' ~ ~I ~ -0 6 - I i~/ ,44Z .10 .aa ❑a .ve .10 - z s .4 .5 .6 a a.c • L,La • 0. , , CAPACITY OF CURB QPEN9TVG lNLE75. DHi COP!T[NUDUS GRA❑E 5-39 FlGl]RE lf , . . , ~ - l I ~ m.r BO+ISTRIHG METH4D (TEH YEAR SMRh[ I?PSTGH) PRA]ECT: 11509 TIASE 0F COHCEN`!`RATION (minUtes) DE2'f.tfi1'ION BFSIN DESIGN BASItI: Ind'aana A(N) . REVIM: KWH Tc (averland) Tc (gutter) Areas "C" A*C N[JHHER 4F DRY4fELIS PROPDSED DA7'E: 15-Rbv-93 4 Sing1e (typ 0 ilouble (type B) Ct ~ 0.15 I2 = 100 0.11 0.90 0.099 ll Pond flcor area 21 = 0.167 0.00 0.40 d TataI Area (calc.) (see H1) 0.11 L3[A] = 41.5 22 = iz 0.00 0.00 0 Time af Canc. (calc.) (see Hl) 5.00 N(A) = 0.016 B = 0 0.00 0.00 a c4Tposite {,C" (calc.) (see Hi) 0.90 s(x) = 0.025 D = 0.016 0.00 0.00 a Timce of Conc. [min] 5.00 s= D.004 0.00 0.00 0 xrea (Acres) • 0,11 Tc (A) = a.38 a = 0,203 0.00 0.00 a C' Factor 0.90 Zbtal A Comp "C°! Imper„iaus Area (sq. ft.) 475D U(B) = a mc (gu) = 1.37 0.11 0.90 _ volme Proviaed (cu. ft. ) ZDB: 345 stom (tat 345 N[a) = 0 surtace: 345 s(B) = o Tc(A+$) = ~38 ufg: a Q=C*I*A= 0.31 Qutflow [cf5] 0 0 Ct Tc = 0.0 Area * C" Factar 0.10 Tc[tot.] 5.00 Q(est.) _ 0.31 Intensitp 3.18 11 12 93 14 15 16 #7 A = Q.250695 ~ Time Time Intsnsity 4 dev. V in V out Stc}rage WP = 2.6503 Inc. Inc. . R = 0.0945 (min. ) [sec. ] (in.jhr. ) (cfs) (cu. ft. ) tcu. ft. ) (cu. ft. ) v = 1.22 (#1*60) (A*c*13) (Outf.*12) (#5-#6) rc (totai) = mc (averlana) + Tc (gutter) Tc[qu] = 1.37 mc (averiana) = ct*(L1*tdJ5"0.5)10.6) Q(est) - 0.31 5.00 300. ao 3.18 0.31 127 0.00 127 ct = 0.15 _ Ll e Length vf averland Flow Holding = 3.56 5 300 3.18 6.31 127 0.00 127 H= friction fact4r af averland f3aw (.4 far average grass caver) 10 6DO 2.24 0.22 156 0.00 156 S= average slape af overland f1ow -is 9QO 1.77 0.18 176 0.00 176 Tc (gutter) = Length [ft.]JVelocity (ft./sec.)J60 20 1200 1,45 0.14 187 0.00 187 B= BQttom width of gutLer ar ditch 25 1500 1.21 6.12 192 0,00 192 Z1 = xnverse of crnss slape one vf ditch 30 lEDQ 1.04 0.10 196 O.OtI 196 22 = inverse of cross slape txa of ditch 35 2196 D.91 0.09 198 0.00 198 d= depth af flnW in qutter (es#irnate, check estimate with Flok) 40 2400 Q.82 0.08 203 0.03 203 Area m d*B+d"2f2~(21+22) 45 2700 D.74 0.07 205 0.00 205 Wettea perimeter = B*d+[ifsintatn(i/Zi))+I/sin(atn[I/Zz])) 50 3000 0.68 C.07 209 0.00 209 Eydravlic Radius = R= Area/Wetied Perimeter 55 3300 d.64 0.96 216 0.00 216 VeLocity = 1.486fn*R".667*s".5 60 3600 0.61 0.06 224 0.00 224 Flaw = Velvcity*Area 65 3900 0.60 0.06 238 0.00 238 n= 0.016 for asghalt 70 4200 0.58 0.06 247 0.00 247 s= longitudinal slope af gotter 95 4500 0.55 0.06 255 0.00 255 Floor vutfloN =[.3fi"depthlhr, per sq.fit. floor] *(1 ft depth/1211) *(1 hr/3600 sec) Bm 4800 0.53 0.05 257 0.00 257 = 0,00400833 cfs per sq.ft. at flo4r area '85 5100 0.52 0.05 258 0.00 258 90 5400 0.50 0.05 272 0.60 272 95 5700 0.49 0.05 281 0.40 281 100 6000 0.48 0Z zso 0.00 29a DRAINAGE P(ND CALC[fiLATIi}HS Required grassy swale pnnd storage vplune _Imperviaus Area x.5 in./ 12 in.fft. = 198 cu. ft. pmvidel: 345 cu. ft. 0K! - DfiWnL FtFQtlIPWRS - la YEAR TdESIGN STOIM Maximlan stcrrage reguired bp Bowstring = 290 cu. ft. provxded: 345 cu. ft, OX! Nmber and type of Arywells kequirsd = 4 3ingle aDouble ~ ~ - i 5~_DIANN AvENUE SVLOVAN cENT~R PINES jZD, -1'o MC-DONAL'p F_C, S°B No, 1I509 ~ . . . _ . (Kw r^) . . BASIN : .>g- N_ _ . N•P~ ta+Gs.a►.. -ro. K.P. i~-tzz..=2 . 4`I•5~~ _ ~2_1481.:;5 ~T,~ 0.~5 ~C_ pc PAv~, loo @ v.~s°~~ - _ . - - - - - zsoe o.6z°1- s"fA Z01.17(2 0 .35 % C.o:3?~°.--- - 551 ►ze 0.55 '7,..~ ---------------•6-""84.b`l~ 2so 2ol.lz . 0.'15~o C~ 0.6207° @ 0.35°7° o - o. o A_ J Q - - • - N . . _ U) . ~9 o D O •o ~ N P O N - _ - --~._.-----i'--._ . -k' • + - - -Y - - - ~ ~ ~ M d" ~9 `9 f~' r~+' 'f ~ P e/a ~ 'D r y w e►1 - - . . --~----I- $n- - i ►oo' I ►oo' ; 100 ' i ~oo' ;^►oo' 1 ►oo~--~•,1 z2.z. - - • ~ -___.___.w - - - . - - - - • - _ . . . . _ . . _ _ _ _ . ~ ~ ~ - • ,y~ • ~ ~ o - . . . 0 0 0 0~' 3i - - - - a----. _ _ . _ ~ . - ~F~; - - - • - - - ST DRAG E 3 , 7D~-A~e ~~-2 c 1~~ S 'S c R A 6 E ~ _ _ . _ . . . - ~ - - - - - - - ~ - 5'ToRAGE 84 t 5.4\ . - _ . 3. 4 s F 7. - ~ _ - - - - - - _ ~v _ - - - BOVISTRING MOD (TEN YEAR STaRM DESIGN) PROJECT: 11509 TIlE OF OONCENTRATION (minutes) DETENTION BASIN DFSIGN BASIN: Indiana BB(N) REVIEWER: KWH Tc (overland) Tc (gutter) Areas "C" A*C MER OF DRYWELLS PROF06ED DATE: 16-Nov-93 1 Single (typ 0 Double (tppe B) Ct = 0.15 L2 = 551 0.15 0.90 0.675 0 Pond'floor area Z1 = 0.167 0.00 0.00 0 Total Area (calc.) (see H1) 0.15 U(A) = 97.5 Z2 = 12 0.00 0.00 0 Time of Conc. (calc.) (see ai) 5.00 N(A) = 0.016 s= o 0.00 0.00 0 Composite "C" (calc.) (see H1)- 0.90 S(A) = 0.025 n= 0.016 0.00 0.00 0 Time of Conc. (min) 5.00 s= 0.0055 0.00 0.00 0 Area (Acres) , 0.75 TC (A) = 0.38 d= 0.3975 0.00 0.00 0 C' Factor 0.90 Total A Canp "C" Impervious Area (sq. ft.) 32487 U(B) = 0 Tc (gu) = 4.11 0.75 0.90 Volume Provided (cu. ft.) 208: 2264 stotm (tot 2264 N(B) = 0 ~ surface: 2264 S(B) = 0 Tc(A+B) _ ,0.38 . u/g: 0 Q=C*I*A= 2.15 Outflow (cfs) 0 0.3 Tc (B) = 0.0 Area * C" Factor - 0.68 Tc(tot.) 5.00 Q(est.) = 2.15 Intensity #1 #2 #3 #4 #5 #6 #7 3.18 A = 0.961231 Time Time Intensity Q dev. V in V out Storage WP = 5.1895 Inc. Inc. R = 0.1852 (min.) (sec.) (in./hr.) (cfs) (cu. ft.) (cu. ft.) (cu. tt.) v = 2.24 (.#1*60) (A*C*#3) (Outf.*#2) (#5-#6) Tc (total) = Tc (overland) + Tc (gutter) Tc(gu) = 4.11 Tc (overland) = Ct*(L1xN/S^0.5)^0.6) Q(est) = 2.15 5.00 300.00 3.18 2.15 863 0.00 863 Ct = 0.15 L1 = Length of Overland Flow Holding = 19.63 5 300 3.18 2.15 863 0.00 863 N= friction factor of overland flow (.4 for average grass cover) 10 600 2.24 1.51 1061 0.00 1061 S= average slope of overland flow 15 900 1.77 1.19 1197 0.00 1191 Tc (qutter) = Length (ft.)/Velocity (ft./sec.)/60 20 1200 1.45 0.98 1214 0.00 1274 B= Bottom width of qutter or ditch ~ 25 1500 1.21 0.82 1308 0.00 1308 21 = inverse of cross slope one of ditch 30 1800 1.04 0.70 1335 0.00 1335 22 = inverse of cross slope two of ditch 35 2100 0.91 0.61 1353 0.00 1353 d= depth of flow in qutter (estimate, check estimate with Flow) 40 2400 0.82 0.55 1385 0.00 1385 Area = d*B+d^2/2*(Z1+Z2) 45 2700 0.74 0.50 1400 0.00 1400 Wetted perimeter = B*d+(1/sin(atn(1/21))+1/sin(atn(1/Z2))) 50 3000 0.68 0.46 1424 0.00 1424 Hydraulic Radius = R= Area/Wetted Perimeter 55 3300 0.64 0.43 1470 0.00 1470 Velocity = 1.486/n*R^.667*s^.5 60 3600 0.61 0.41 1524 0.00 1524 Flow = Velocity*Area 65 3900 0.60 0.41 1621 0.00 1621 n= 0.016 for asphalt 70 4200 0.58 0.39 1684 0.00 1684 s= longitudinal slope of gutter 75 4500 0.56 0.38 1740 0.00 1740 Floor outflort =(.36"depth/hr. per sq.ft. floor) *(1 ft depth/12") ~(1 hr/3600 sec) 80 4800 0.53 0.36 1754 0.00 1754 = 0.00000833 cfs per sq.ft. of floor area 85 5100 0.52 0.35 1826 0.00 1826 90 5400 0.50 0.34 1857 0.00 1857 95 5700 0.49 0.33 1919 0.00 1919 100 6000 0.48 0.32 1977 0.00 1917 DRAINAGE POND CALCULATIONS , Required grassy srtale pond storage volune = Impervious Area x.5 in./ 12 in./ft. = 1354 cu. ft. provided: 2264 cu. ft. OK! DRYWELL REQUIRDENTS - 10 YEAR DESIGN STORM Maximwn storage required by Bowstring = 1977 cu. ft. provided: 2264 cu. ft. Oli! Nimber and tppe of Drywells Required = 1 Sinqle 0 Double ~ ~ . ~ ~ !A-1~1A _IiA C. E~NY E. jZ. .._0-509 2. `z - - - . ~~u~_'~~~~p~~~,►~,g~_~v'er~_.___lop f.~,~-----___.__-- _ _ . ev Cvr~-~iv~..~o+~5 grad~ o.1°4-~-- - - -u - . _ - - - -___._~'~.n.~.~~o,-T.~--- 1 _ ~ o ~oY" ----1"._~d~ ~~~_z.. _ ~i o n ~ 0_ 0 ~3__ - _ ~ ~ ~ -~'-k - ~ , . - - - - ~ f 4_-----,.,_..,.__ _ 4. _.~__-__~___t-_.__~_~._...._.~_...._. A.._._ - - - . _ . . _ ~ . _...__e.._.._~.. ' - - - - 11DI..I,IME_.. Z- • - - ~ J-~ ~ - iZ - 3 w._ _ . - - Fr• - - - - - - - - - - - - - E .--tiZ . _ _ - - - - - - - - . , a . . . . / _ _m _ _ . _ _ _ _ _ _ _ ~ ~ ~ ~ M 3- ` .*r► ~ 3:1 - ~ . _ - - -----w_____._ _ . m. _ . _ ~ _ . _ - . _ _ _ . _ - - - - ~ _ - ~ . _ _ .m~..._ - - - - - - - - - - - - - - - - - - - ~ + Z W 6.5 ti1GH SeRM - - . - _ _ - - ._F- - - ~ - - - - ❑EPTH ❑F FLOW - y 4 FEET . " a+ oa 03 oa . .as aa .ae .10 0.19Z .3 .4 . s a e .s 10 1.0 ~s~, , o r • I ~ ~ ~ +~r ~ ~ ' ~ • M~ I ' .e i~`E 7 l-r17 ~ 4-1 ~ ,-r, " tL I~ J~" ~ ~ IJ--=-r lilikI j ~ I j o-r ~ 4~' ~ Oa ~ - ~~i ~Q~~~ La 1~ I- .74 93 I ~ G~' i ~ I I Y IA .,08 y i ~ ~c~ • 1',, I f I i I I 1 777 ~ ~ • i ry i .03 ~ I .534 , ~ N I ~ Ds k_ opt ~ LI o, • 1.0 (o ) DlSCk9ARGE PER FO❑ f❑F I ~a/~ s LENCTH OF CURB QPENING INIL'ET5 WHEN IlVTERCEPTING I00 °Io C3F Z'i.IJTTi ER FL❑W (b) PARTIAL 1NTERCEPTIQN RATId FOR INLETS dF , L~ -POO LENGTH LE55 THAN L ~ ~`a•~~ ~ ~ -z ■ ~ ' ~ I / ~ ~ ~ y ~~T ~ i i ~ I . / 3 { /r rF0 ~ j I Y ~ 9` I i / ri o i a ~ ~ I ~ io .os ~s .rre ia a s .4 .s e .a 1.0 L/LQ ~ • CAPACITY OF C19F28 t?PERVING lNLE`fS OfV CDNTitVU{}Cl5 GRADE, ■ ' 6-39 FIGCJR€ VB BM'l'RTHG ~[Eg'HOD (TEN YEAR SMRM DESIGN) PRWEm: 11509 TIME [F CONCENTRRTIOH [minutes] DETENI'YON BASIH DFSIGti BASIH: Indiana RB(N) REVIEWER: IiWH Tc (overland) Tc (qutter) Ar+eas '"C„ A*C NWER OF TIRYWELF.S PROP(SED DATE : 16-Nov-93 D Single (typ U Uvuble (tYpe B) Ct = 0.15 L2 = M 0.11 0.90 0.099 0 Pond floor area 2i = 0.167 0.00 0.04 0 Total Area (caic.) (see H1) 0.11 LI(A) = 47.5 Z2 = 12 0.00 0.00 0 Time of Cvnc. (carc.) (see xi) 5.00 N(A) = 0.015 B = o Mo . 0.00 n CAIIIpo5ite "Crr (Ca1C.) (see H1) 0.90 S(A) = 0.025 n= 0.016 (1.[16 0.00 0 Time af Conc. (min) 5.00 s= 0.0055 0.00 0.60 0 nrea (Acres) 0.11 ' mc (A) = 0.38 a= 0.192 0.00 0.00 a C' FdCtAZ 0.90 Tota1 A Camp nC" Impervious wrea (sq. ft,) 4750 U(B) = o Te [yu] = 1.21 0.11 0.90 ' Volumie Providecd [cu. #t.] 208: 345 storm (tat 345 N(B) = 0 ~ surface: 345 s($) = D Tc[A+s) = 0.38 U/9= 0 Q=C*I*A= 0.31 +Outflow (cfs) 0 p Tc (B) = 0.0 Area ~ c" Factor 0.10 Tc[tat.) 5.00 Q(est.) = 0.31 Tntensity 3.18 #2 #3 J4 #5 #6 #7 A = 0.224262 Time Tsm Intensity ~ deu. V in V oilt 5t❑rage Wp ~ 2.5466 Tnc. Inc. R= 0.0895 (min. ) (sec. ) ( in./hr. ) (cfs) [cu. ft. ) (cu. ft. ) (cu. ft. ) v = 1.3e [~i*sa) (n*c*13) (nutt.*#z) [#5-46) Tc (tatal) = Tc (overland) + Tc (gutter) rC(ga) = 1.21 Tc (overlana) - ctk(11*Njs^0.51^0.6) 4(est) = 0.31 5.00 30D. no 3.18 D.sr 127 0.00 127 ct = 0.15 L1 = Lenqth of Werland Flow Halding = 3.55 5 300 3.18 4.31 127 0.09 127 N=friction tactor of overland flaw [.4 for average grass cover} 10 600 2.24 0.22 155 0.00 156 5= average slope of averland flow 15 400 1.77 0.18 176 0,00 176 Tc (gutter) = Length [ft.]/Velocity [ft.Jsec.],160 20 1200 1.45 0.14 187 0.00 187 B=Bottam width of gutter or ditch 25 1500 1.21 0.12 192 0.00 192 21 = inverse of caross slope one o€ ditch 30 1800 . 1.04 0.10 196 0.40 195 Z2 = inverse of crass siope two nf ditch 35 2100 D.gl 0.09 198 0.00 198 d= depth af flow in gutter (estimate, check estimate with Flaw) 40 2400 0.82 0.08 203 0.00 203 ArQa = d*B+d"212*(21+22) 45 2700 0.74 0.07 205 0.00 205 Wetted perimeter = E*d+[itsin(atn(1/Zl))+lJsin(atn(1f22))} 50 30Q0 0,68 0,07 209 0.00 209 Hydraulic Radius = R= AreaJWetted Perimeter 55 33D0 0.64 0.05 236 0.00 215 Velclclty = 1.486/nAR".667*s".5 64 3600 0.61 0.06 224 0.00 224 Flow = VeloCity*Ared 65 3900 0.60 €1.06 238 0.00 238 n= 0.016 fQr asphalt 70 4200 0.58 0.06 247 8.00 247 s= langiLudinal slope of gutter 15 4500 0.55 0.06 255 D.QO 255 Floot ontflow =(.36"depthJhr. per sq.ft. f2aor) ft depth/12°) ~(1 hr/3690 sec) 80 4800 0,53 0.05 257 0.00 257 = 0.60000833 cfs ger sq.ft. of floor area 85 5100 0.52 3.05 258 Q.OD 268 90 5400 0.50 0.05 272 0.00 272 95 5700 0.49 0.05 281 0.00 281 100 6nan 0.48 0.05 290 0.00 290 ARAINkGE F6HD CALCULATI[THS Required gaassy swale pond storage voluce = Impervious Area x.5 in.f 12 in.Jft. = 148 cu, ft. pmuided: 345 cu. ft, alfI DRYWELI, RF}QUIEENTS - 10 YEAR 31ESiGH S3OFtM Haximm starage required bp Bawstring = 290 cu. ft. pmvided: 345 cu. ft. OK! . Nmber and type af Dryraells Requi,red = 0 5ingle 0 Dauhls ~ ~ ~ - tA_> 4P, Npti_ AV~., ~uL- L rV aN e1~- N rF~ IZ. . N 0 . 11509 . . - - ~ - - - - - - - ~ - - - - - CA 9 ~ wM~ eC - N S-r&, 3tov To Io ~65.~ ~ . - - - _ _ - ---.--~'~Y'T'; -'t❑ t~or-ir~ e~rb ~r.~~~ ~ _±.~S.. 9 1.. ~ .(A-6 5.R ►)C4Z-~~ .~z, 13P. -1 3 3_0-V ~(A.1~ t-2-D.) .1 0r 1Z ~ . z 5' @ o. ~5 _ , • - - - - - ~ ~ ~ r ~ 2q o•ql C.° I:"~}5~^ - i° - - - _ __e _ - - . - - - - - - • - - - - (~_._._..__~.Y .~._r,..~......~ _ - _ . ~w. - - _ _ ^ _ ~ e_ $ 4"' 10 trs . ~ ~ p ~ _ ~ _ _...w~~_ ~.w,..,._.__...__ _ • . , . ~ .__._.~.._~_~s_~.~~_._....... ~...._.~._..J.._ 03 - . _ _ _ _ d°- LR ! I Y i ' w I w ~.._....-4 (fl ~___F_ i ~ . _ _l. _ . _ Y , ~ _ . ~_Z .,..m. - . ` - - ' 1., _ _ _ ~r~w~.l#----- ~ __~_-lo~~ -j - - _ - - -..s.___.~~__.._.F _ ~ ~ _ Q~ ~J - _ _ 47 1 - - 57 NG 'E -'9-5,Qu►%S p.~~.__e - - . ~ _ (C'•3 S-Tv FaPG~ ,-r S•4 ~ 5.4 - - - - - ABLS.._.._.'. ~ ~i5•9 1 ) f - - - ~ . _ _ _ . . ~ - - 3.4 ~ f ~t ~ - - - - - - ~ _ ' ; SMTRING MMM (TF.N Y&AR SMRH DESTGH) PROJECT: 11509 TIHE OF COPiCEHTRATIOH (minutes) DE1'ENTIOH BASTH DESIGH EASIN: Indiana CC[N) , REVIEWO: HM Tc [averland] Tc (gutter) Areas liC" A*G PlUMBFR QF I}RYWELIS PR4YOSM BA7`$: 16-Nav-93 1 5ingle (typ 0 Double (tppe B) Ct = 0.15 L2 = 756 0.74 0.90 ' 0.666 p Pand flcaDr area Z1 = 0.167 0.00 0.00 0 Total Area (caic.) (see Hi) 0.74 z~(A) = 47.5 za = 12 0.00 0.00 a Time of coac. (calc.) (see Hi) 5.21 x(A) = o.a16 a= a 0.00 0.00 a c.omposite ,{e" (calc.) (see Hz) 0,90 s(n) = 0.025 n= 0.016 0.00 0.00 o Time of fionc. (min) 5.21 s= 0.0088 0,00 0.40 0 Area (Acr9es) - 0.74 Tc (A) = 0.38 d= 0.36 0.00 0.00 a C' F"actor 0.39 3'ataP A Comp "C" Inpervious Am (sq. ft.) 32256 Li(a) _ 0 Tc (qu) = 4.82 0.74 0.94 Uo1ume Plrovidecl (cu. ft. ) 208: 2642 stoxm [tot 2642 N(B) = a 5urfaee: 2642 S(B) = 0 Tc[AtB] _ 0.38 ~ u/9: 0 Q=C*I*A= 2.09 Qutflmw (cf5) 0 0.3 Tc (B) = 0.0 Am ~ C" Factor 0.67 Tc[tot.] 5.21 Q(est.) = 2,09 Intensitp 3.14 12 #3 #4 45 #6 #7 A = 0.788422 Time Time Intensity 4 dev. u in V out 5tarage WP = 4.7000 Inc. Inc. R = 0.1678 (min. ) [sec. ) (in. /hr. ) (cfs) [cv. ft. ) (eu. ft. ) (cu. ft. ) v = 2.65 t#1*60) [A*c*13) [autf.*#z) (15-16) Tc (tota1) = Tc [overland] + (gutter) Tc(gu) = 4.82 Tc [avelland] = Ct*fLI *HjS"ti.5)"D.5] g(est) - 2.09 5.21 312.31 3.14 2.09 876 0.00 876 Ct = 0.15 . L1 = f,ength di Orerland Flow Holdinq = 27.29 5 300 3.18 2.12 851 0.04 851 H=fricfiion factar af averland flow (.4 for average grass tDver) 600 2.24 1.49 1054 0.00 1054 S= average slope of overland flow 15 goo 1.77 i.l$ 1186 0.00 1185 Tc [guttsr] = Length (ft. )/velacity [ft. fsec. )/6O 20 1200 1.45 0.97 1261 0.00 1261 B= Bot'Eorn width af gntter or datch 25 1500 1.21 0.81 1294 0.00 1294 21 = inverse of cross slope one of ditch ~•30 1806 1.04 0.69 2320 0.00 1320 22 = znverse af cross slo,pe txo of ditc'h 35 210Q 0.91 0.61 1337 030 1337 d= depth af flow in +gu#,ter (estimate; check estimate with Flow) 40 2400 0.82 0.55 1359 0.00 1369 Area = d*B+d"2j2*(21+Z2) 45 2700 0.74 0.49 13$3 0.00 13$3 Wettea perimeter =B*a+(I,Isin(atn(1/z1 ))+l/sin(atn(7 f 22 50 3000 0.68 0.45 1407 0.00 1407 Hydraulic Radius = R= Area/Wetted Perimeter 55 3300 0.64 0.43 1452 0.00 1452 Velocity = 1.4861n*R^.667*s".5 69 3600 0.51 0.41 1505 0.00 1566 F],aw = Velocitg*Area 65 3900 0.60 0.40 7601 0.00 1601 n= 0.016 for asphalt 10 4200 0.58 0.39 1663 0.00 1663 s= lonqitudinal slape of ptter 75 4500 0.56 0.37 tai$ 0.00 1718 Floor outfiow =(.36"dePth/rr. per sy.€t. fioor) *(1 ft depth{1211) ~(1 hre3600 sec) 86 4800 0.53 0.35 1732 0.00 1732 = 4.00UO0833 cfs per sq.ft. of floor area 85 5100 0.52 0.35 1803 0.00 1803 90 540D 0.50 0.33 1834 0.00 1834 95 5700 0.49 0.33 1895 D.~DD 1895 100 60aA 0.48 0.32 1952 0.00 1952 ---------------------------------------~~_y__-----____-___~~_~-------- - DFiAINAGE POND CALCII1,14TIOt+S _ Required grassp swale pvnd starage volume ' _Inpervivus Area x..5 in. j12 in. jft. = 1344 cu. f't. gravided: 2642 cu. ft. QK! DRYWELL RE)QUIiDMS - 10 YEAR DFSIGN STORM Maximum starage required by Bowstring ~ 1452 cu. ft. provided: 2642 cv. ft. OK! _ Hiaaber and type of Drywells Repired = 1 5angle a Double ~ ~ U-1.- L. t 11 Ar4 .C,. E tv 7CF .F- r T lrYEF-_s -.Fz I?~ rta -~MC'70~I~i, vU - - - - ~t~«~~~ S a r4 . C c - tA 5 ~.A., ~ v ~ La__ k~: P _ ~-i~ t~.~. ~ o_ a_ _ - - • - - _ - - c~.~r --DYi -coy►-~ih~aow5 ~ra~~, ~ - - - ~ - - - - -----~X__~ _a.,~l__ ~-~'S~,-.----~ ~ ~ D• 1"1`I ~ - ~ _ - - - - . - - - - - ~ r~► F_i_~ ~ ' - ~ ~ d 1~~ d ~ ~ r_e = Z-1 0 r_ 0,3 1_ -r 3.64 fl. - - ~ ~ - - - - - - - - - - - - - - - - - - 2a ~ro~u►~E ' _._iz C.QLiI~~D-_ _a~---._~`-~~.-~~'--IC-~-~-~' ~ . _ _ ~ ~ ~ _ - - 1~ ~~/FT• N _ ~z - • - - • - - . . _ TvP^~~ 5 1~- F- N► . ~ ~ _ . _.4_ ----Y - _ ~ r - - - - - - - - - - - - - - - - - - - . _ ---V p l; a4 twe----oID~ C3e- -SwnUF- _ . - - - - - - _ _ . _ . _ - - . . _ _ - - - - s~' . . . I7EP7H OF FLDW - y- FEEfi . ~ a' .2 ~ s .s .r 9 i o .01 Ag .03 QE .OS .4E Dd I~ 1.0 F. i . I ! ~ r - 9_ ; r ~ I 1 I si I 1 I~ ~ .a + ~ ~ ~~1• I I ~ f~i~f ~ `T 'S . ~ 4-1 I--~ 1.4 yj, ` 9~; ~ i i~~~~~_ ~ 4y~~~ t~ ~ ~1~~~; e~,I La .p.'.~I.X-~w.~~. bw ~r fl,~ ~ ~=1 1 I ! F oe ~ i i ~~G ~ 1 1,~ f I L .ae rm oa . l Fi I-Ft i ~-l A- I .nz I ~ I F I I ~ , , ~ ~ I I IT L . al ~ ~ ~ 1.0 w I .Q ' - ~ ~ ~ ~ ' • i ~ ~ M ~ ~ s " ~ a D aiscHaRGE PER FOaT OF LENGTH OF CURB OPENING {~---~-~-~-4a INLETS vVhEEN INTERCERTING 100°Io []F GUTTER FLQW • ~ (b} PARTIAL aN7ERCEPTI0N 0~ RQ7iO F~JR I N LETS OF • IL- X~ LENG7H LESS rHAN Ln ~ -4- 'z - L T7 l ~ i k ~ I - Of.- .OY OS .Q8 10 • 2 3 .4 S •8 e 1.0 L 'La CAPACITY OF CC1RB OPEN,NG INLETS _ ON C(JNTINUOI7S GRADE , 6_39 F1GURE 16 4~ B0W5TRING MEi`HOD (TEN YEAR STORi4 DESIGN) PAQECT: 11509 TIME OF CCINCEENTTRATION (minutes) DE?EHTIDN $ASIH DFLIGH BASIH: Indiana CC(N) REVIM: KWM Tc (overland) Tc (gutter) Areas "CII A*C H[IMBER OF DRYF1EWs5 PRt3F(ISEU DAfiE: 16-HoV-93 p Single (typ 0 Aauble (type B) Ct = 0.15 L2 = 100 0.11 0.90 0.099 0 Por,d f1oor area 2I = 0.157 0.00 0.00 o Tota1 Area (calc.) (5ee fl1) 0.11 L](A) = 47.5 22 = 12 0.00 0.00 0 Time af Conc. (caic.) (see Hi) 5.00 N(h) = 0.016 B = o 0.00 0.00 o cauposite „c" (calC.) (see Ha) 0.90 S(A) = 0.025 n= 0.016 0.00 0.00 a Time of Cnnc. (min) 5. AD s= 0.0088 0.03 0.00 a Plm (Acre5) 6.11 Tc (A) = 0.38 d= 0.177 0.00 0.00 0 G' Factor ' 0.9a Tota1 A Conp °C° Impevious Are.a (sq, ft.) 4759 L1(E) _a Tc (gu) = 1.01 0.11 4.90 volune grovided (cv. ft.) 208: 345 storm (tot 345 N(a) = n - surt'ace: 345 s(a) = n rc(a+a) = 0.3$ ~ U1g= g • Q=c*IAA= 0.31 Outflaw (cfs) D 0 Tc (S) = 0.0 Area * C" Factor . 0.10 Tc(t.ot. ) 5.00 Q[est. ] = 0.31 ______---_-_-Yntensitp 3.18 #1 #2 #3 #4 05 46 #7 A = D.19059 fiim Time intensitg Q dev. V in V out 5torage WP = 2.3I08 c~ Inc. InG. R = 0.0825 [min. ] (sec. ) (in./hr. ) (cfs) (cu. ft. ) [ca. ft. ] (cu. ft. ) v w 1.65 (11*60) (A*C*#3) [outf.*#z] (#5-#6) Tc (total) _ Tc (overland) + Tc (gutter) Tc(qu) = 1.01 Tc (averF.ana) = Ct*(F,1*x/s^0.5)^0 .5) Q[est) _ 0.31 5.00 300.00 3.18 0.31 127 0.00 127 Ct = 0.15 L1 = Lenqth af ih+eriand Flaw Holding = 3.56 5 300 3.18 0.31 127 0.00 127 H= frietian factar Qf overland flom (.4 #ar average grass cover) 10 600 2.24 0.22 156 0.00 156 S= average slope of overland floW 15 917O 1.77 0.18 116 0.00 176 Tc (gutter) = Lenqth (ft.)JVelncitp (ft./sec.)f60 20 1200 1.45 0.34 187 0.00 187 B _Battom width af gutter or ditch ~ 25 1500 1.21 0.32 192 0.00 192 21 = inverse af c.rnss slope one of ditch 30 1803 1.04 [].10 196 0.00 145 22 = Xnverse of cmss slope two af ditch 35 2100 0.91 0.09 198 0.00 198 d= depth of f1ow in qutter (esiimate, check estimate xith Flaw) 46 2900 0.82 0.0$ 203 0.00 203 Area = d*$+d^2/2*(Z1+Z2) 45 2700 0.74 0.07 205 0.00 205 Wettea perimeter =B*d+[I,Isin(atn(lO21))flfsin(atn(1JZZ)]) 5Q 3000 0.68 6,Q7 269 0.00 209 Hydraulic Radius =R _Area/Wetted Perimeter 55 3300 0.64 0.06 216 0.00 216 Vel.❑city =1.486fn*R",567*5".5 60 3600 0.51 0.46 224 0.00 224 filow = Velacity'Area 65 3900 0.50 0,06 238 0.00 238 n= 0.016 for asghalt 70 4200 0.53 0.06 247 0.00 247 s= longitudinal slope of gutter 75 4500 0.56 0.06 255 (f.a{f 255 FlcDr outflow =(.36"depth/hr. per sq.ft. flnar) *(1 ft depth/12") *(I hr/3640 sec) 80 4800 0.53 0.05 257 0.00 257 =0,04000833 cfs per sq.it. of floor area 85 5100 0.52 0.05 268 0.00 268 90 5400 0.50 0.05 21Z 0.00 272 95 5700 0.49 0.05 281 0.00 z$i 100 6000 0.48 0.05 290 0.00 290 DRAIKAGE P4ND CAI,CUJ.PITIOHS ` Aequired grassy swale pond s#Arage volume = Impenriaus Area x.5 in.J 12 in. fft. m 198 cu. ft. provideds 345 cu. ft. Ox± DRYWELI, RH(2UIREEMS - 10 YM PESIGH STORM Maximum storage required hy 8axstring = 290 cu. ft4 pmvided: 345 cn. ft. 4K! Hunber and type of Drywells Required = a 5ingle 0 Double , ` ~ ~ . ~