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11-0301_PETERSON-CHASE GEN ENG CONST.,_Agenda Report D4
8/18/2009 AGENDA. REPORT D4 TO: Joe Tait, Interim City Manager FROM: Nasser Abbaszadeh, Public Works Director SUBJECT: Consideration of Approval of the Plans and Specifications, Authorization to Receive Bids, and Approval of the Design Addendum with Willdan Engineering for Del Obispo Street Widening at Trabuco Creek Bridge (C1P No. 07107) (Willdan) RECOMMENDATION: By motion, 1. Approve the plans and specifications for the Del Obispo Street Widening at Trabuco Creek Bridge; and, 2. Authorize the City Clerk to receive bids; and 3. Approve an Amendment to the Personal Service Agreement with Willdan Engineering. SITUATION Summary and Recommendation Plans and specifications for Del Obispo Street Widening at Trabuco Creek Bridge have been prepared. Staff is requesting City Council approval of the plans and specifications, and authorization to receive bids. A copy of the plans and specifications is available for review in the City Clerk's office. Approval of the design addendum for additional work performed by Willdan is also requested. Background At the September 16, 2003 meeting, City Council adopted the Traffic Congestion Relief Program (ICRP) as recommended by the Traffic Congestion Relief Ad-Hoc Committee. This project was ranked the #1 priority in the City's ICRP. In 2005, the City retained Willdan Engineering to prepare the preliminary design plans for the proposed project, By June of 2006, the conceptual plans had been completed, the environmental review was in process, and City staff was prepared to move forward Agenda Report Page 2 August 18, 2009 with completing the preliminary design. However, in order to complete the preliminary design, the Orange County Flood Control District (OCFCD) needed to provide the City's consultant, Willdan Engineering, with the hydraulic analysis to determine the bridge abutment design. Beyond the City's control, OCFCD was unable to provide that information to Willdan until August 2008. As soon as OCFCD provided that information, the City and Willdan resumed design effort, the California Environmental Quality Act (CEQA) documentation, and moved forward with Commission review. Because the federal grant for the project was in jeopardy, an accelerated project schedule had to be followed starting December 2008 to meet a construction authorization process date of June 30, 2009 by Caltrans. Willdan has submitted an addendum, Exhibit A of Attachment 2, due to extensive coordination necessary to meet the accelerated schedule, and also additional work performed to obtain the following: 1. County of Orange Flood Control District permit to build the bridge. 2. CalTrans approval of the project for funding. 3. Necessary Resource Agency permits (Regional Water Quality Board and Fish and Game Department). Proiect Overview & Analysis The width of Del Obispo Street at the Trabuco Creek Bridge is an obstruction to efficient traffic flow through this area in San Juan Capistrano. Currently, Del Obispo Street at Trabuco Creek (Attachment 1) provides four undivided lanes of travel (two eastbound and two westbound lanes), back-to-back left turn pockets for Paseo Adelanto and Alipaz Street and sidewalks on both sides of the bridge. The proposed project will widen Del Obispo Street between Paseo Adelanto and Alipaz Street to accommodate the four undivided travel lanes (two eastbound lanes and two westbound lanes), back-to-back left turn pockets for Paseo Adelanto and Alipaz Street, and an additional left turn lane for Alipaz Street, along with bike lanes and sidewalks on both sides of the street. In conjunction with the road widening at the bridge, intersection improvements are also included for Del Obispo Street and Alipaz Street and Del Obispo Street and Paseo Adelanto. The improvements include dual westbound left turns from Del Obispo Street to Alipaz Street, dual westbound left turns from Del Obispo Street to Paseo Adelanto, widening of the west side of Paseo Adelanto to approximately 500 feet south of Del Obispo Street, and adjustments to signal phasing. Undergrounding of overhead utilities will also be constructed with this project. The underground design is currently underway. Both overhead lines that cross the creek at Del Obispo Street will be removed. Cox Cable, AT&T, SDGE, and MCI will be placed inside the bridge structure. Agenda Report Page 3 August 18, 2009 ENVIRONMENTAL REVIEW The Mitigated Negative Declaration (MND) was approved by City Council by Resolution 09-03-03-03 on March 3, 2009. COMMISSION/ BOARD REVIEW AND RECOMMENDATIONS The project was presented to the Transportation Commission on August 13, 2008, and they concurred with the geometric design. On October 2, 2008, the Design Review Committee reviewed the landscape and bridge railing; their comments were addressed in the final design. On February 10, 2009, the Planning Commission reviewed progress plans for the project and their comments were related to landscaping issues; their comments were addressed in the attached set of plans. FINANCIAL CONSIDERATIONS This project has secured federal grant Funding of approximately $2.7 million , and prior CalTrans authorization is required to advertise and receive bids. The necessary application form and project plans have already been submitted to CalTrans for review and approval before the June 30, 2009 submission deadline. The City is required to match 50% of the project construction cost for the grant. Willdan has requested $219,410 for the additional work performed on this project. Staff has investigated potential changes to the project design and construction to reduce overall costs. We have concluded that by eliminating widening on the south side of the bridge and a structural pier nose, the project will result in savings of approximately $500,000 in construction costs. The details of the design addendum with Willdan is attached to the report (attachment 2). The City and Willdan had to remobilize the design effort and perform on an accelerated schedule. As a result, a great amount of coordination was necessary with Orange County Flood Control District, Caltrans, Glenn Lukos Associates (environmental consultants), and the Resource Agencies. Additional work has been performed due to changes to the following since the original scope was determined: 1.) bridge design criteria, 2.) channel analysis, 3.) enhanced BMP's, 4.) Underground Utility District, 5.) and OCFCD requirements. The requested addendum by Willdan has been negotiated by staff and overall dollar amount has been reduced. Agenda Report Page 4 August 18, 2009 NOTIFICATION Ken Steele, Willdan RECOMMENDATION: By motion, 1. Approve the plans and specifications for the Del Obispo Street Widening at Trabuco Creek Bridge; and, 2. Authorize the City Clerk to receive bids; and, 3. Approve an Amendment to the Personal Service Agreement with Willdan Engineering. Respectfully submitted, Prepared by, Nasser Abbaszadeh, PE Aar Nisha A. Patel, PE Public Works Director Associate Engineer Attachment(s): 1. Location Map 2. Amendment No. 1 to Personal Service Agreement 3. Plans and Specifications THE CITY OF m: a1~J JIANIISTII rr' )r: �I Pre? i N k a�1� S5 �Z I:I, y Ip " tL�`, i tf „ro ,tet M. CIP 722-DEL©BISPO STREET WIDENING AT TRABUCO CREEK BRIDGE r� y l� 0 ", - t r? $ F r;f .s rte 0 3000 6000 9100 Feet ATTACHMENT 1 AMENDMENT NO. 1 TO PERSONAL SERVICES AGREEMENT THIS FIRST AMENDMENT TO THE PERSONAL. SERVICES AGREEMENT between the CITY OF SAN JUAN CAPISTRANO ("City") and WILLDAN, (°Consultant=') is made and entered into, to be effective the day of - 2009, as follows: RECITALS WHEREAS, the City and Consultant have entered into that Personal Services Agreement dated March 16, 2004 for a total of$261,810.00 for the preparation of plans and specifications for the Del Obispo Street Circulation Improvement and Bridge Widening over `I"rabuco Creek from Aiipax Street to Los Rios Street (the "Agreement"); and WHEREAS, the City and Consultant desire to amend the terms of the Agreement as provided hereunder. i AMENDMENT NOW,THEREFORE, in consideration of the promises and mutual covenants contained therein,.City and Consultant agree to the amend the Agreement to add to the Scope of Work, extend the term, and increase the total compensation amount as follows:. Section 1. Scope of Work The supe of work to be performed by the Consultant shall consist of these tasks as set forth in the original personal service agreement with the addition of those tasks as set forth in Exhibit W attached herewith and incorporated herein by reference. i Section 2, Term E The term of the Agreement is hereby extended to the new completion date of July 1, 2410. Section 3. Compensation 3.1 Amount. The City hereby agrees to pay the additional sum of Two Hundred Nineteen Thousand Four Hundred and Ten Dollars ($219,410.00) for a revised total not to exceed contract price of Four Hundred Eighty One Thousand Two Hundred and Twenty Dollars ($481,220.00) to Consultant for those services performed as set forth in Exhibit"A". 3.2 Method of Payment. Subject to Section 3.1, Consultant shall submit monthly invoices Lased on total services which have been satisfactorily completed for such monthly period. The City will pay �1 saoQzs.t ATTACHMENT 2 monthly progress payments used on approved invoices in accordance with this Section.The City eliminates the Rate Schedule subsection of the original agreement. Section 4. Entire Agreement This Amendment constitutes the entire understanding and agreement between the parties with respect to those additional services described herein and any other understandings, oral or in writing, are hereby superseded. Section 5. Other Terms IAll other provisions of the Agreement not amended hereunder skull remain in full fixe and erect. i i CITY OF SAN JUAN CAPISTRANO I By. Mark Nielsen, Mayor ATTEST: By: Margaret R..Monahan, City Clerk APPROVED AS TO FORM: 1 i BY: (�Mal Omar S ndoval, City Attu ey CONSULTANT QLBy: "-� -z- 54t)U28.i - ` ; [ exfEt3di�t� y/ ` �`� I LLDN your Ehgftleef'lrl£ mach II June 1,2M9. i iVlt Nasser Abk�aSz d h,P.E. Engineering&Building Director/City F..rtgineer tit, of Sari J€ran Ca pistra nci 32400 Pasep Adelailto &m Aan ta'pistranq,CA _q2:675 54 West: Doi Obispo (cIP 3.22:} Qe�ri Atl r du ii1o. k Dear Mr.Abbaszadi5h, y+filldati's priarfty is to,praicte they o€'Sa»,luartiistrartoiialit;t design setuies.and itteefeiyc5 project schedule and f r>dirig dea.d[firvo goat s ass fisted°with-the llel Wspo Street Vti1.ideOng prolix f�..Ween Alipa2 Street:acid Paseo A&la6W. The origin l OrgieM s�iledule 3netu,clei-a two-year`design. efFo.rx with the design cwtitract to be Cirrip.10W in 2t1O f e-WeveF,d`ue to.Trabucfl Oreek.and Sart Juan Creek channel a7ia:lysis being p:,Obrm. by t fe Atrt�-y. Cqrps of rrg ri ersi am si€ 5 c}reit y by t ie Orai?ge County F1oOd CoMrol €jas d(OC-FM theAe8 eftrts and rr omebtur li of this project stowed cotisidtf; f'y begicti'ting iii 2045, The completion-ofthe O(FG)ahajys!s b)770 in 260ff ai.lowed fvrthe,. rent lization of the desEgn efforts U" the:Traboeo dk hYd-t0togyT6f6rrOati(5R for design;of the bridge and Channel i prauerrsents. Since tM City and Willcftm refthil:lzed the.i#esign e€farts an this acceferated schedufe.,Willden rev"iewEd the projed desig;tr sta#us•and the scope of Work:fn*� it A of Persahai,5efvl'a s;llgreementda'ted MaeCb 1-6;260'4). Several elernents Of the..prt�Iect have -haTfged,since the originai sOp'e.W. dettirrrii�ecl irsel�ld ng bxid& desigfi, criteria, chaririel atiajWig-, ertYianeed: am's; the Uriderg and Utility i istrict and OCP CD requirenaerits resulting in this design adriendU�n: As statad€rr yaur e-mail Baited March,Si 2€09,Will an. was directed,to'proceed with project:d6sip, 41cluding.out rif sr-ope,WgtR, W.Litft the ffi£'iai fie.fpr th, effofts trs be negotiated:. Su�sk que m ci3eetwg5.betweei Wif[Un arid the City brir lViarch 23, 2€0} and March 311 1009,resulted in this negotialed addendum scope of work and fee. A benefit to some of tile-inc{ude! design tasks ihclude changes to the•project scope that resulted in a i constructian oost.savingsto the.Cty of ap'proximatefy$506,040 including-rerriavitlg tie southeiri bridge. witferrfffg, rr lnimi7ing cfia:+inel reconstruction, new bridge, corsstruction rn.ethods,arid. a"01 ingprivate property acquisition, Engineering i Gec>iacl7rtical 1 Ehv;ronszlental J �iC;arfGia# l t�or�eiar.'c4 S®CUCf#y 714:978.8206 1 900':424.31.44 1 'tax.714.878.8299 1 2401 Fast Katella Avenue;Suite 450,Anaheim,CA 928.06-6073 1 www-willdan.ca n EXHIBIT A Ilei Obispo Street Wid,eriirig Rroject F' exMnding Design Addenduo No,i. � NM UDNy�r y Enginee iCl react i { Jam 1,.2Q09 Page 2 Chliif&n is )aok ng fprWatd tt) continuing to serve the W, of Soh: tuarr Uolgrartiicm tir"rs it partaltt project: If pu:Piave any.gvesbans,please cantac' lie at{7 14)97$ Sincerely Kenr}e'th T.Steele,P.8: yt(illd;�rr PrOject Maiaager;Ti,-qmpOrtatio:r} i 1 - Engihaer r a J Gevtechnlcal [ Envlydnrnertai i .Financial I Homeland Security 71.4.978,8200 1 800.424.9144 1 fax:7 4,978.&299 f 2401.EasE Katet,a'Avenue.Su;ts 45i),Anaheim,CA 92$06-6079 1 www.wiiidan.com D01 Obispo,Street Widening Vrojoa Design Addendum No. W I.�:LD j rir V isntgler�nct� June 1,2-00.5 Page'3 I SCOPE 0 AI'bIlIONAL WbR,K- Task A314 Uty"&ordihafj'a i jMk!etin%s The.original scope."ixreltttle-d attendan-ice .at.sic meetiiags ler City request>htith City, County and other agencies. During the first two,years pf this project'11 i idari-��lr� tha sig mf!.efmgs.budk6ted.and j conti"nood to a: .nd meetifigs a�itq trod to p,0,04e tdidtdlhifl n thro igh projei to.. letion. Wil staff Members Nave aftendt-tl twelve additional meetings vrrfth the C4.over the last three years. This. task iridudes prep8ration=€ter-dri4 attendg-n .at helve:ad-d tiortal nieet Thp.Additignal efi`ort to pexfar'rrt the._itis in`"th_is fask oras 54 hpprs aril ish°r:thrf[in.Atrahrbterrt"10 F Additional rireeti.tigS rejoin--eti. tor" utility. codrerhn4-0v, ebvirbtimerltat document epordihation acid planning cafnhilss5fon"meeting attendance are addressed underothertaskcs, I '�,"as1C�Cl Lt'tiiiiC�iti�ifi:�a�ti�risant�. appirtg" TEi dr€gir7al scafie ii ctr d:ad tkie no_t:fic Ylni of utility ct mo fijos ti ra�ig[rcau"tt.he design pros ess. W'€.11dan had prbvi€ted utility agencies two Utility mices and enmpleted the ut ltt}r 1n"appi.ng� DwIng the Osjn lahase,. Vridergnaun:d. €-0i-ty MI icr,'iUUDj 5-02 was created lay the My requiring "additional riptffcations, roordlna066 Alilppirig and.ftetft% Wiltdatt has:attendL-d miorrthly UUb rzteefl"s wid. provided exhibAs,CAD drawings,:uptoaded fifes,i�el veiei�"C�and reviewM utijity company desfo to ilt arptxta tli,i?piaci m" ar rat of SOW,C09;A'T&T an t1 C u#�cier the tyriga"vvrcler ing stNrcture. Tftis�sEe iiuIU0S-the„adult orlal utilitY r FA�s P_Onderxe attd co.0-rdination and attendance at monthly(JU-0 055-02- utility rneeffngs,; updating.the rnapping jor Phase 1 and Phase-tdilii ies,intlogon"of a iitilW plan metat in the.frrt jest plans and reference'grid Mcluslari of utiitty"info atlq irito tfi# ojod p]4hs as wab as resertding.the offitral Nd.fii�eae of Ri�brat►kirr and'Nbtice.to-RLMc te. The addiflonal effo t to per oritt the items.iri this task wa&1,24 hours and.is shown in Attachment'l, l UskAD29 Reid Revre.w. Thfi-task ifiduaOsthe.Wilidaii"design team,_consistiitg.of division rnanagers arid design staff;revisitift tlx:prt eeC site and carrdricting a field retilow and Updating the ptiabi liigs:in,1008 ani 2&9, Th-initial site recbwziAissahce oras peavrsir d rn 7004 a[nd revisiting the`Site tial re4uired"toverify field conditions, ideritify recent irrtprovernents' and Uglify construction,, The additional effort to perform the: items included in tfais task wti is 30.hours..and is Shawn'n Attachftn e_nt 1,. i Enging ing Caeotochnical l EnVlronmental 1 Nnandal Homatand Security 714.978.8200 1 80{7,424.$144 i fax:714:47$,8299 1 2401 East YzW la Avenue,9ulte.450,Anaheim,CA 92605-8073 1 www.wWdan.cam s' Del Obispo Stm t Widening Pr0fect y DA r�� exri ing f3esigrt ltdc ndu.tn t5lo':1 � L.� i� y0iff Engin-eed reach June 1,1009 Page 4 j Task Af#.24 de-ornetric P11a6 A074.1 Update-PmectGeometry Witldari.r'evtsod the City approved protect gp.mw trtts ptart prepared.tn 2 in order to incortyorate tie changes involved.in the Serra Plaza design and the eti ination of the bridge southern Widening. The proposer!:gpometncs nci t'aseo Adelanta Were rei esigriiad tri protect the trAc'signet and dere ratit e corder hardscape €osta[W4 by Serra.Plaza at the southeast:carner ofthe rnterseciton. 'Coordinati6rc With the. City traffic ehgtneer and prepara wi of truck turning templates teas regtitred to ctetofmlrite the rt?i: rf sxariv+ray georrtetrjt arrd.stri.rfg-, itf cantly 1 itildao and the.City isle i ed a constfuctian and Might of-way-acti isitj:on cost savirig� by restriping D'et Otsispo street io eUM1YiaM Wtdesiiiig on the so.uffi side.of Pet Obispo Street. Willtars revised:tE (?►erect get?atrics to inci3rrae thisange The addWonal effort to perform the Items Included in this task was 46 Efours,andis shown Iry Ana-meat A024.2 update Tmfrc Aba#ysis This task inctudes updating,ttfe tragic and report.to support.the env rogmenMl dacum it a�s descri od in tire. i]tttatt pr peisel ctatec ApC613, 2W (sree Attaehntent 2). Mjt staffoDncwreed w th.ttte additional wdW and the ariaiysis ah.d report were updated .and' provl$M to tNra My. This flask ineorperrat s that prq pr ssat into this testi addendtam and the i i> ttiUtas3c,izi. 11CiLC in Attechr�ertt, 3 Task A-03 . twra ae icft�al Cru y l This task#ricttrdes.additiarral field sitrvejr that:was re Wired tkutsi&-,,�of ttae'prtried liioits to satisf d1;KD iequtretrret? anti afst� try carif%t afid :#b i tib agflop + fe ts?re afortg serrtt Pesi?o Adetantt? and Ati.pat S:teeet. OCFCa required a field survey of the invert stabilization str:u=m north an€t south Of The project limits. uiithin TrahLx-o Creek instead of pslhg jqs hoist iilfs�rrriatirirr Survey of scriitl3 Aasea Ad>rlartto was: aim,required to.verlf) t4e Serra Plaza:consMiction-of the gastertr cu`rL 1'€ne.and also design of the Paseo Adelante street vvidening and retaining,wall. The pla-cement of a 8M-0 site M.thin the County Gogh,6f'Way with several existing gas currtparty otrttties afsa regii.red a fi cid tbp;pgra. ii s>ar rey to be. pe 'ornied. The,adti tionai effort required W perform the items in this,task was 58�hours and is stiowh In Attachment 1. Eng;Peering 1 Ge0t£'0W0U1 i Fn Aroarrwta€ I FlnbnoW i Hdmr far d SeruHty 714.978.82€0 1 800.424.5144 1 fax:714-9 64299 1241 1 East wei1a A+renu%Suite 450,An$heinn-CA 92806-W73 1 www. Mdanzom i 3el Obisoo Street Widen41g Project erre rik *M N Xour. dend.clm tom.�. Design AdEnginee in'g June 1,.200 Rage 5 i Tz*AQSO Ge:oteoww'41 E"O.ineeriing This task inOvdes:i,p08t1bg tKe gea.tecl meal eriglnee ng repor.is-dels 7bed in the'AdtlitionaI Work Request ilei_ 1 dated NovembeF 4, 1008:(see Attachment 3 Chir staff r,.enw—rred Stith.the additional work and the updated report ivy provided to the Gly.. Thl; task teat additional work re lop—st into.this overall addendum and the fee for tl is task is included in Attachment L TaskAp61 moadwaynesign AMIA ALtaibilhOfali DOgn Tivs.task ir{r`lodes the :des sof the l talririg wall lac 'leaf alai 'th t s em silo.of 1?ate A. efatlto. Vtikilfdart will perfiarm struejui l talculatiOffs laased on time geatethnital investigation €ffitafr°ed for the bridge widening and the laa=dtrrg rel ufrerriei dentl# d �y t'he bUCO Witidan_Will TO_krelice CaltMrFS standard ptaris'br the ctiirstructibn of the,cwicn�te Wall and.Wilt ptbpArea retaining. WOOplaft azid. pfo-rde_Additibnally,County eammirts have rttulte,d fn tuidenirrg he:rhannel undertrossinj res1ilt►ft9 itr re€alining walls WK in the t;harf.gel. These Walls,have 4eeeo sltown•on.t(?e chan-'I inilirtitrerftentdi ave gs. and designed pie CaltraYis staridardl pfai s;.Wall aestiteties are i of 100D"..The additicrital eft:rt to. perform tho items,in this task was 5-9 hours and is-shown in Attachr e,*1;. Mfg iia:lTy, thee.east side of Alipa Street ripfth of Ael aWspa Street:was lig to be Widened for an adc€'stional lane.an'd lane dre�p, 'rite"pity has ietiaLntiNd that,this wWeq rig.,will.not:o. u.r wth tit .prtsj ct HoWi ftr,the WiderrinK ofthd west sie#e of P 0 Adelanto south 6 DO Okiistso Streei ryas added io the de�gr€ The preps raVta of a:pltri.midi proffle street for Pasco Adelanto will be-prepared in Ili of the .AliiiezSkreef irrideng. ' -N-A 062 Utility Masigtr This task irietutle's the resea.reh slid des%gFi of a water Ilne flex-coup fng atyd vault for the new 12"w 02 liner.the existing crater fines crossing the bridge do rip tomtain flex e~'vt�pl`Gags tar vaults. puririg the design phase the Gtr requested the iiiglusia.h df a fled-Wopllrrg aril#'uaWt in the desi�n'ptaris,similar to the v+rater line Crossing at the Ston hill Bridge. Wilidan has researched,, performed Galcialatloris aiirl design, anis prepared a. detail sheet fgr fho flex-coupITOg .and rei0fRrced. Ofitfete 001tjr uautt. Additloria[IV,WiltdaTr researched the potentiat uSe,of epoxy canted acid lured steel fittings for PVC pipe as requested by the cty tar inclusican into the project design. The addifi na{effbrt.toperfariil the itlmk; in oris task.,was,iO habit ana is.shOwn io Attachtneiit 1. Task'AbO 5tructurai Bridge Engineering. engineering I Geoteerr+ioal I ErMronmema{ i F41lOG61 f HdM,,land-Sjgcurrty 714-97a-8200 t SD0.424..9144 I fax:714,976.8299 € 2401 East Kate€Ia Avenin,sults450,,Anaheim.,GA 328D6- 073 I www.wifidan.C.0m 0 i3estgl�Addendum,No_ rn E LDA �Qf l�l�tkis o street Widening ro a1? t� ( 8� Eri ltf£ Et yr� r T re=t7. Page 6 A0611 Sciirthern•$ridge Widening The ortgirsat proposal,f€ir the arfgrirn8ent of th iiitpr Vernieiit Was based.ole the bridge being Widened on the north°sJde only Howewr,.dur.Tng the early design phase and d"Vs5lbns WitRite Ci' to provide intim to corYido:r geornetrias,_it%W,id00104 that a srrr'ail WicleTtipg ori the s"side of tit bridge was requ.j;r d: This scathe€n .portion is.,lmnsid.ertd a se.pamte strucw1 re from the northern porbort and required additional structural engineering. effo'r$.. "This tzsk lhtludes. the a4miopaJ. strci�tt,iral caitaxiatior ahc# ariat 5isflat wore, pRrf(yr ted' :acrd the additional coristrikVon {Mans and details dgvi�loped to reflect the southern bridge widening-. Slabsecfueritly, the City and Willdon reviewer d the oppi)Unifiies to .reduke�aqnsttuetion costs and also meet the expedited project idesip.schedule its-order to meet funding regpireriient;these Qppprturrilaes indud6d.deslvt char&s to av* right of way takews Ano efinlirraathig the s"them'bddge Widening g g .,. �thxiati h fge retlucticrn of Enke lone and traffic lane widths en l:kre J�rid �.fc� rrttntm�►nrr requTretnecrtfi. CaleWations were porforitietl to verify that thf-A ex SVOg saiatti'M bfidgk nic'il ver C.d.Utd strttctirraifii suppoi`t the ii-eW Mdowalk and b6dge raO_ South side bridge Wrd"eWg Etas men removeLd ft-orn the pmjert;resulting in,a substantial constructidn-cost saviivs.fortbe This additional effbre to W.br fhe rtiins in this task was aU hours and iiszhowrs rn AttacM!ant.l,. A063.2 I.r4 efactibatiod 'curve After Arroyo q'eotechnica's initial field i f estigat oti fbr this�aro'&tr it vitas discovered that the project Siteis$Usceptible to Jlrluefacrfon ond�r earthquake events.sp.ecifi%aiJy, there are a f+pr+nfMotely�Q feet. of layer-below the existing:grade f tat is liguefiabje: 1:igtse fitiorl is rletr rzteriral Cfii llrir e frsrrrrdatiortse It lose's soil strength and coofine-imat of the pile section. Tf erefdre the. piles lase their vertical and hMizontal caps it�es and produce seisrnkralty induced settlements,TO address tht effect of li uefaoiort,, aiitlrt'saiYal ge liriical al ai�rsis tuns_o!anti i add'ressr d in Fa'sk Ai35(). In order to determine the lritegrr#y of ftre,plie e:': oserE Jay iiquefaictibnx special fatuctiiiFaJ affalysis`uas needed. t illt#an referred-to the updated ritecli fiscal erigIneering report f6e tip:aM�Sis,and treated the exposed pike suctions as freLesta'nding,:columns and calculated their vertical and lateral strength,to: rarry the gran.tjr Joad Imposed fro M the LtrJdge s'pans:. Additionally,the design standards used to perinrra the initial bridge design cai>utak cans.tri 2004 char-,a in 2606. Calina65 updated tai A-te€orated Respdn Sici ctruig. (ARS} curve far seism c desigrf tri the Seismit'Dl Mgn.. kriteria (.Ione 2t7D6} dot(i ierit. The revised and more- conservative: AIt:S Curve- superseded urvesuperseded the previous curve resulting in the need to perform, seismic structural calsulatitins and aztal.y"sis aver again per the tiew curve. I izngineermg I Geotec€inital 11~nviroAmental I Fhaticial } iicrne4anr3 secddtq 710978-8200 3 B00'-424.9744 I €alt:714.978:8299 1 2401 Easf Katella Avenue,Suite 454,Anaheim,CA X2 MA073 I vrrrw.willdan.com Del Obisoo Stre6t.Vyidenrt Rrojeci ea rider Design Addendum N1a..1 t ����� yot,r Engineering rah Juice 1,100 Page 7 The results: of the calcelbubns using the reirised Alts curve roqui'r i that ft i:ridge elements be red.esignad,for•a' larger sef5Mk load;the previously prepares pjan-s,detarls Dead structural eie.rrientr,ori the pEtiject plates also had to lam:redesigned and updated. This task inetudes theaddition s#ructural eOveering.efort to#erforrri calculations and:anatysN and update the structural details assajated wAh!'ir;uefa'cictn.and the neer An Ciir3re perCds.: ThL4 atd>iitilana`C elfar'tto Ftetfprrti tine items iri tliistasic l rhs:3 3 hours anis.is.shovsri ire A chrrlerit 1 3 A60:3Underground Utility Details Resulting-from the ir€clusfbn of i UDr 05-02 into the, project.tje5ign, thij pier waifs, E-fi ge di opms, 3 ahU'tirtertts.and deck widening regiqired the frill Lj§pff of utiIityopefflfng%: Sp -141 d`e0il and analysis was required"W design these additionaI openings'to the dimnsi ns and requineryiens ofthutlli agetic s. This task incitkdes the additio ia'I.str uta igi;i rirrrg design ano d€tailjrtg elft >t .to a cirr►riipdate tho ut'rll'tles. The ad"- drial effort to peftriti the.iter►as in ttfrstas)WdA 55 lto.iurs and is shown in.At'tachrnent Task A064 Ch;4h xrrl,Design Al t;7 0=Rels6rt-Prepbraticft The Orion Sc 000 of Work [den fMd that W5lI Sari:WOW'd verfythat thehrldge Wide'nft did riot increasethe current channel deficiency utill4ng the Array Ctxrps of Engineers (AGCJCJ hYd l e study irifarr at[ein; PI'eparati�n v:F a eQm�ili�e charak'ef.l�ydra€11ic artalys�s arid:fiepiirtJ�r V�iil€far�sus oQt�r�clurfed..5�tk�segverit #4 iIWA-ti's review of'theACOE Mp argil*rbgZKm0&i`ngs Wlth#*Cbunty tiie OCF deterrnineri that the.hydraulic data iii the AWE reportwas not acceptalsfe and required wilCdarr to tt tza flow€Di e-nOffib0s from the MM report; unmately,y,tha 0CM0 regt4ed the pry t n of an 1. epth.horaulildarialysis of TtbbucaCreek Channel.betinreefi-the.upstreAfn'and dowliistreati inveifAaffilizersas well as the atralysis of pier e ten'sIbnsr Folinwfrieom. etion of this,ana.ysis.and additional meeun .with.the,Caun h � � >� � �� e�report was risaci pe>' Cciurit� 1reefon to ntcideI the:inch skin of pier exterisio% {ricises�.ore pkp 2 axil 3, Sti#ise tjt to this; report revision,ttse Cflunty dlrr etteri the.removal of the pier ZrL mese to.be reino.Ved from this.project and constructed as part of a future County project. County comments regtdreti changing tbe-chamel rriodLl to refiect the single pier rTo$.e and the.redart was again revised.AIW irtcludeii in.the repot€reVisjon!;was the ch an nW.analysis inl orporatirig tEri;wid000d,uridercrossing trait and retaihing,walls per'(b upty cammerts: This tas€c.ihciudes tiie Preparatllbri and revisions of the Tibbptp Creek,C4arfri.el Hydra u.lic:Repcirt" repartd by Willdarl as required bythe©CFCD. The additional effortto:perforin the items in this task was 115 hours and is shown in.Atiachmehy 1_ Ertginsering I Gwtkthfi ca i En*0nmenfal I Fnandal. j Homeland Security 714,978.82D0 r 800,424.9144 l tax:714.978.8299 1.24Q1 East Xateha.Avenue,Suite 450,MoWteim CA 92,306-6073 1 www:wMdan.=M i i i l3eft?hispn.Street WTtie''�iirig Project Wr WILLD ,dour Design Addendum No�.1 '� I�7lgirt�t t11:� Mach June 1,2009 Page 9 A0641 Pler Extension Design This task includes then UdOrA 9Wsit and design.of pier exttnM ans(nos+ss)per OCFCD requ remeMs. Glaring.the.design phase and prt?jpc't meetings With the O,(,,,;:'d'i>a CQjurity initiaity regW40 the in"tlusi&.0 two pier i K3" 5 wilt the hem"bridge p(ers arrt3 subsequently revised this,decision to:incl de one pier nose.. Wilidan has pei'fxrfned design calculations,and pr."epared:pierna�lvplan.�{etat�and aru�ral detzal plait shoe%in the toosttzctldh docvinthts to address b6tn the no pie nese:'UL aim tf special pla qg,,-&tails regWJr ed.due to the Construction of a single pier nose. The additional effort to perform the items in this task -'ask AO.G6 Landscape Architecture This task irtciu s the incmased"landscaping and trio-swale design effoits During the designs pt aise the El s Design Review C rnhjittee an,4 Planning Cbmrnissian requested art elaPwM landseaptng plan sir>t.ilar to fte tet Rias Park that was re'eently deveoped, The eM-Ot- and lacatiori of the BMP lands-capieg.has.exceeded the glassy Swale ate Eipated in theWigfri4i scope".as well.as the add tton of r tan:dseaping and irrigotion Alo)% the reto.t.jng wa#t On sr ulh P.asea Adel div and Attm#ar ce of tM; Landscape Atofilteet at the Planning.Commission. meeting, Additlonatty, the proposed Wad-ed grassy swal-e has been replaced with a.Swale fil-ration system eorwi�ng:of a.trenelr piwirig and carrrreetivrs to existing.stcii rfr drain systeii35 .a a result af"the 'NQW acid the 4D - CeWficatiAn pr Bens the. CRWQCB. The arfdlrlonal of tf required to:perforin the items:in this task was 51-"htrurs'and iss shown in Atta ment I. TaskA067 Qu.rtities astir-ate Thin tads lbclijdes the additional effort to: perform cost est aces associated' With the addWO. al tarrdseaptng and trrigiftiort; flex mvpft and "Wt, retaining wail, VeFr' nose's, bio}swales. ail°d ihcarpotatirtg file UIJit Q tJ2.atiiity'w Ork to he perFor�med by the CMys tahtract6e, The add#tlohal effort re!uii e.d to.per#ortr the Ibams in thIstask wars.41 hours and is-shown in Attachment 1. 1 Task-W& s}iecifi %obis This task irielucles the ac#d:itla>'al effort to ptle�iare special provis"i0f§ associated with the additional landscaping and irrigation, flex. coupling and vault, retaining wall; pier noses,. Ko-swafles and Incorporating provisions-for the ULID 05-02 utility w6A to be,perfarrried by the City's tontracto ,- -rho additional effcirt required to perf{irm the ite rays in this task was 4 hours.and is.shown in Alta "2< Task AICD latest Rank Bike Underpass.Design This task includes. prepar=ing a Cost estimate and design for a" western bike underpass. The City considered intrddue inn.a Reals bike underpass.at the v est bank of the channel under the bridge,similar �Rgi�eYing [ Geoteciirztcaf [ �niaimtimerita[ i �Inancisi l Flrnrrslarid SeC::.'ity 7-14.078_a260 1 806.424;9.144 4 fax:71.4.878.82°'9 1 2401 EASt Katona Avemie,Wtp450,Ana#ielm,GA 926Cia-&7$5 ! wwwAildan.com" Det Obispo Street Wide-Ming.ProjectWIL Design Actdendztt f µ � AN your Enfteerng reac#i 1.ut e 2,,2099 Page 9 to the.existing bid underpass at the east ixnk_Tfil' i y r�gtrest !(V%tl[ia3t #, p rat:a`canstrnetion cost estimate fdr the new bike underpass for budgetary consweratton.at the city,Wi(Wari iserfo—d a cp. estimate, aFld subset eptly inenrporafe�d the. western bike underpass liito the project. plans. Res icing fto>n 67 1 CI9 revie 'and recent la;d€gei ty conc.o.i s, tete WeL.'A bik&path iiia assns ia'i+_d t ri a e.ai i ess road end channel side 51ape recor'strlicti€o10 Eras beo etimfntted. The additional eff6rt for tt�e items-in this task was,43 hours and is sham in,4ttacfirx nt FEE FOR AMMO A#.WORK A fetal fee of 19,410-00 includes seffjces far,w aWeady pi~Ideal;and far woxk to he provided to complete the P-S&E desigft. I i I i . i I i i I i Engineering' Gegtech sinal ( Envitonmenwl 1 1 inanciai I Homeland SscuTiity 714.978.8200 1 800.424:9144 1 fax:77 4:978,8299 I. 204 East,Kateila Avenue,S�Jte 4613,Anah&mr GA 92806-6073 1 www.;.YIJJ a.aom x bb OO CCff tltl CCJJ ©© pp OO OO s E Y d G '+F ll I y.G M W M M W Opp+ a z° E ttct - � T I II S fl 's a p a t N Q p $a P M � M E T _ � W W W M K m n N QN N W 8 � N N VI W I M 2 6 Q o p 4 W o � z 19 o o a Tl I N W ? �a � z m I {{ Q1 N F I i 1 ops �x x o I a a a Io ea 61 1 n W 1 ii rf 2401 FW Kalega Avenue.Julie 450 Anaheim,iaUbrnia 928M Serong Pr 110 i+.'y«ndeg' 71,41973.8= f*Dt 7'x41978-823 www.mAltdan.com Apra 3,2008 MR.ALAN P.OSWALD SENIOR ENGI.NEERITRAFFIC ENGINEERING AMC!BUILDING DEPARTMENT CITY OF SAM JUAN CAPISTRANO '32400 Paseo Adelanto' San Juan Capistrano, CA 92675 Suboct Del Obispo Street Bridge Widening Over Trabuco Creek Traffic Analysis and Report Clear Mr.Oswald: Willdan is pleased to submit our Scope of Work and Fee proposal to .provide professional traffic engineering services to the City of San Juan Capistrano far the Del Obispo Street Brame Widening Over Trabuco Creek Project We are excited to.continue to move this project forward and assW the City in meeting the project goals and schedule. The City of San Juan Capistrano is requesting the update of the Del. Obispo Street Bridge Widening Over Trabuco Creels Traffic Analysis dated December. 1, 2006 -(Revised) to support the envvirwonmental document-being prepared by the City- The follmning Scope of Work and Fee(Attachment A) includes a project understanding and a teria based on the information provided by the City at our meting held on Mardi 26; 2008 at the City. Please review the Scope of Work items to confirm our understanding of the traflic,analysls c rWa. We are confident in our ability to provide the City witt4►►a timely document preparation. If you have question's or require additional information, please do not hesitate to contact mat(714)97M205, or a-rnaii me at ksteeleC?wilIdan.cnrn. Respectfully submitted, Wilidan n dicer P.E. Vice President division Manager,Transportation cc. Nisha Patel,city of San duan Capistrano Bill Parnss y,City of San Juan Capistrano ATTACHMENT A DEL OBISPO STREET BRIDGE VVIDENING COVER TRABUCO CREEL TRAFFIC ANALYSIS ANIS REPORT i A. PROJECT UNDERSTANDING The City of San Juan Capistrano is requeang the revision cif the Del Obispo Street Bridge Widening Over Trabuco Creek Bridge Project Traffic Sturdy-dated December 1, 2006(Devised)to support the environmental documentation being prelmied by the City. The report will be revised based on new tr-Ar.data and the fol6rin6 criteria: * The project is expel to be constructed In the Year 2U09. * A one percent growth factor will be applied to new existing count data to obtain Opening Day(Year 2009)volumes and future volumes Year 2035. EL SCOPE OF WORK Task 1.0 Traffic&Que dng Counts The work effort necessary to update'the traffic study'and evaluation is as follows: a. Obtain current count data at the four study intnrseclions of Del Obispo Street at Pdipaz Stmt * Del Obispo Street at Paseo Adefanto Del Obispo Street at Los Rios Street Qel Obispo Street at Camino Capistrano Per the City's guidetlnes, fine raurrts wig bendur�ted in (7-9), Midday. (11-1)and-PM (3-6)peak hos. These counts will be;performed'dn a Tuesday, hours.. Wednesday and Thursday and the average of tote fibres days will be utiftzed withIn the report The counts wit be conducted while school is in session and before the summer months. b. 24-hour directional car t on del Obispo behNeen Atipaz Street and Paseo Adelanto will also be conducted over a three clay period. c. A qu trir count will be perk cried for au le#tum move rryents at each irct�ion eDurrlid. Information such as the number of vehicles in the pocket, the number of vehicles queued into the through lane and how many vehicles miss the cycle will be provided. i Page 2 ATTACHMENT A DEL OBISPO STREET BRIDGE WIDENING OVER TRABUCO CREEK TRAFFIC ANALYSIS AND REPORT Task 2A Traffic Analysis&Report a. Analysis will be per fined at each of the four study intersections: lel Obispo Street at A5pz Street, Del Obispo Street at Paseo Adelanto,Del Obispo Street at Los Rios Street and Del Obispo Street at Camino Capistrano for the following conditions: _ E)dsting with Existing Ge ornetrics ■ Opening lay(Year 2489)wfth Existing Geometries • Opening lay.(Year 2009)with Proposed Geometric s _ Year 2(335 with Existing Ge'ornetrics . ® Year 2035 with Proposed Geome#rics. This analysis will be performed to determine the Level of Service at each of the intersections listed above utilizing the Intersection Capacity Utilization (ICU) methodology for the signalized intersections and HCS for the non-signalized intersedons. The,Opening C3ay and Year 2035 analysis both w#Ji and without ft project will also be analyzed utilizing SYNCHRO. . j b: previous comments made by Uty Traffic Engineer(Alan Oswalt)dated 12/8106 and the subsequently City approved Table 2 LOS Delay revisions provided to Mr. Oswald on 1/,=07 pertaining to the Traffic Analysis (December l, '2006 — Revised)will be incorporated into the updated analysis and report c. Prepare a Draft Report to be submitted to the Cit for review and con rrre nt d_ Respond to City reuienr comments, revise report accordingly and submit a Final (This proposal incorporates one review prods.) Task 3A Wings Two Wilidan employees will attend two meetings with City staff. One'meWng will be held subsequent to City review of the Draft Report submittal to disco City review comments. The second rneeiirag will be held at the Final Report subM ttal to discuss the findings and conclusions_ VIlrlldan wilt.prepare and distribute meeting notes for the first meeting. Task 4.8 Prrjed Management&Administration This task includes progress monitoring and supervising to facilitate task completion and delivery,coordination with proposed lel Obispo Street design work and maintenance of project files. i Page 3 ATTACHMENT A DEL C)1;315Pt}STREET BRIDGE tNIL} MG OVER TRABLICO CREEK " TRAFFIC ANALYSIS AND REPORT Reimbursables W7ldawn wil provide three copies of the Trak Analysis and Report at the Daft and Final submt tals to the City. Reimbursable expenses include photooapying, binding and delivery of the reports. Reimbursable expenses will be billed at cost plus a 15% markup.. A budget amount has been established for reirnbursables and back-up will be provided. C., SCHEDULE In order to provide counts outside the summer months, counts must be completed before June 1,2008. We would be prepared to begin work on this study upon receipt of authori�tion_ We anticipate that approximately three to four weeks,would be required to complete the study after receipt of traffic count data D. FEE Wilidan proposes to provide the traffic engineering services as stated above for the following fee as identified in the task breakdown: Task 1.0 Traffic&Queuing Counts11,90Q Task 2.0 Traffic Analysis.&Report $16,8D{3 Task 3.0 Meetings $ 1,180 Task 4.0 . Project Management&Administration $ 1,020 Reirrbursables Total .$31,400 This proposal is based on the conditions and criteria'Wirzed in the T3emmbL'r 1, 2006 Traffic Analysis and changes to those conditions and criteria including the proposed or existing-roadway geornetrics and the traffic signal operations are not expected and would be considered additional wale. Any work effort.beyond the proposed Scope of Work will be based on UML-and- materiais in accordance with Wilidan's Schedule of Hourty Rates.This also includes attendance and preparation for any meetings not'inchided in the Scope of Work. Prior to engaging in any such work Willdan will notify the City in writing. Page 4 �"�• t+l M1�� ���a� rl r1 M! wi s+iM Y�I f WwM J++tM �'i ;�f •`k: y�' - . t xx i 0 itill123 3 fill~5 14 m ,::F �� �� AT T 7�A .��t31 E � iYifi�?i�"�}��ntC71 .$S yi wneim '1i:Ii'•rYII:Y`I;i7Jti-Ijf:j Ntovember 4,2008 Mr. Nasser Abbaszadeh, P.E. Engineering&Building Dite or/City Engineer City of San Juan Capistrano 32400 Paseo Adelanto San Jura Capistrano,CA 92675 Subject Del pbispo Street Widening Project between Alipaz Street and Paseo Adelanto (ClP 122)-Additional Work Request No. 1 for Geotechnical Engineering (flask 6 I . ©ear Mr.Abbeszadeh, . W 11dan's priority is to provide the City of San Juan Capistrano quality design;services and meet the City's project schedula and funding deadline goals associated with the Del Obispo Stmt Widening Project between Alipaz Street and Paseo Adelanto. As Willdan and the City remobilize the design efforts on this accelerated schedule, a review of the pr*ct designstatus is needed starting from the end of 2004,when the work effort stopped, and what has transpired over the last year since the completion of-the PACE report for San Juan Creek. Additionally, a review of the Scope of Work(Exhibit,A of Personal Services Agreement dated March 16, 2004) and the work effort to complete the project design in May 2009 is also needed., .However, to " expedite the project schedule and design work effort,,W€lkian would like to initially address two preliminary engineering tasks that are the base work for subsequent design tastes: Task 3 SurveylRight of Way engineering and Task 5 Geotechnical Engineering. Geotechnical Engineering (Task 5) is addressed in this request for additional worst. SurveylRight of Way Engineering(Task 3), as well as other task updates,will be.addressed in fodhcoming requests. 3 Liquefiable Scali investigation and Analysis The original geotechrzi field investigation and analysis was Mf weed in 2W4 Subsequent to the initial field investi aticm,Wfidan Geo�techrvcal disccivered liiqu�able soils in Trabuca geek at the Gel Obispo StreetBridge. The presence of liqueftble soils was not anticipated and, as a E result additional field investigation and analyses was necessary to quantify the seismically-induced settlements dare to the soil liquefaction on the existing bridge foundations and the proposed bridge widening foundations. Wilidan Geotechnical performed the fallowing additional tasks asstacs"ated with liquefiable soils: As-built Foundation Analyses Considering Liquefaction Effects • Axial capacity for abutment&pier piles under seismic c ondMons Lateral capacity for abutment&l"piles under seismic conditions P61 Obispo Street Widening; .between Allpaz Street and Paseo Ad 'b Additional Work Request No:•. -Geotechnical Engineering November 4,2008 Page 2 New Foundation Design Considering Liquefactim Effects �► Axial capacity for agent&pier piles under seismic conditions Lateral capacity for.abutment&.pier piles under seismic cond'fionsi The effort required to complete this work was 48 hmn for a fee of$6,740. Geotechnical tngineeringl Update • Since the completion of the held investigation and geotechnical analysis and design in 2004, seismic analysis criteria and design standards have substantially changed resulting in a need to redo the seismic and I'cquefacHon analysis and revise the final geotechnical report.Tn complete the.report and provide the,information necessary for bridge'design, the following tasks,will be performed implementing the new seismic standards: • Update seismic design pararneters; 6 Finalize the liquefaction arras; . 6 Design pile foundation based on latest axial,ipiit,and lateral loam; _ Perforin slope stability analysis and design for embankment slopes; • Perform settlement analysis for embankment fills; • Finalize boring log and laboratory test result c ornptlah"ar,and ® Prepare the final report. The effort required to complete this work is 08 hours for a fee of$14,930. Task Management and,,Coordination } Task management aced'coordination was provided for the liquefaction soil investigation and analysis and will continue to be provided for the outstanding geotechnical engineering work to complete this task. Management activities include scheduling old and design Work, coordinating work between design groups and subconsultants, maintaining records of correspondence and providing quality assurance and control. 3 + The effort required to complete this work is 12 hours for a fee of$1,820. Fee For Additional Geotechnical Engineering Work, The total fee for geotechnical engineering work already completed and to provide art updated analysis and report is$23,44.00. Dei Obispo Street Widening :r',.ct between AJipaz.Street.and Pawn Add E � Addithnai Work Request No. GeotecttrticW Engineering November 4,2008 Page 3 WiEldart isocking fcurarri to continuing to setae the City of San ,Tuan Capistrano on this irmportard project. If you have any questions, please contact me at(714) 978-8205. ROspett'fully Submitted, Kenneth T. Steele, P.F- V"rce President Group Manager,Transportation i - ATTACHMENT 3 Plans and Specifications are available for review in the City clerk's office and City Council Office.