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Contract - Tetra Tech, Inc. - 8/28/2025
STATE OF TEXAS § COUNTY OF WILLIAMSON § SUPPLEMENTAL CONTRACT NO.4 TO CONTRACT FOR ENGINEERING SERVICES FIRM: TETRA TECH, INC. ("Engineer") ADDRESS: 4801 Southwest Parkway, Pkwv 1, Suite 185,Austin,TX 78735 PROJECT: CR 112 Imarovements from A.W. Grimes Boulevard to CR 117 This Supplemental Contract No. 4 to Contract for Engineering Services is made by and between the City of Round Rock,Texas,hereinafter called the"City"and Tetra Tech, Inc.,(formerly known as RPS Infrastructure, Inc.) hereinafter called the"Engineer." WHEREAS, the City and Engineer executed a Contract for Engineering Services, hereinafter called the"Contract,"on the 5th day of December,2019 for the CR 112 Improvements from A.W. Grimes Boulevard to CR 117 Project in the amount of$347,442.39; and WHEREAS, the City and Engineer executed Supplemental Contract No. 1 on July 22, 2021 to amend the scope of services and to increase the compensation by $663,281.84 to a total of $1,010,724.23;and WHEREAS,the City and Engineer executed Supplemental Contract No.2 on December 21,2022 to amend the scope of services and to increase the compensation by $38,850.00 to a total of $1,049,574.23; and WHEREAS, the City and Engineer executed Supplemental Contract No. 3 on March 8, 2024 to amend the scope of services and to increase the compensation by $39,700.00 to a total of $1,089,274.23; and WHEREAS,it has become necessary to amend the Contract to modify the provisions for the scope of services and to increase the compensation by$103,722.00 to a total of$1,192,996.23; NOW THEREFORE,premises considered, the City and the Engineer agree that said Contract is amended as follows: I. Article 2, En ing eering Services and Exhibit B. Engineering Services shall be amended as set forth in the attached Addendum to Exhibit B. Exhibit C, Work Schedule shall be amended as set forth in the attached Addendum to Exhibit C. Supplemental Contract Rev.06/16 0199.1958;4897-7562-4282 84275 1 II. Article 4, Compensation and Exhibit D, Fee Schedule shall be amended by increasing by $103,722.00 the lump sum amount payable under the Contract for a total of$1,192,996.23, as shown by the attached Addendum to Exhibit D. IN WITNESS WHEREOF,the City and the Engineer have executed this Supplemental Contract in duplicate. [signature pages follow] Supplemental Contract Rev.06/16 0199.1958;4897-7562-4282 84275 2 TETRA TECH, INC. By: Kevin Hoffman, VegionY Transportation Director 8/8/2025 Date Supplemental Contract Rev.06/I6 0199.1958;4897-7562-4282 84275 3 CITY OF ROUND ROCK APPROVED AS TO FORM: By: n Craig Mogan', M, or p ie L. San re, City Attorney WlZel ©Z5 Date Supplemental Contract Rev.06/16 0199.1958;4897-7562-4282 84275 4 ADDENDUM TO EXHIBIT B Engineering Services SCOPE OF WORK-Supplemental for Roadway Improvements on CR 112 from A.W.Grimes Blvd to CR 117 Round Rock,Texas From: A.W.Grimes Blvd To: Approximately 400' east of CR 117 Length: 1.18 miles County: Williamson City: Round Rock PROJECT STATEMENT The roadway improvements for CR 112 from A.W. Grimes Blvd to approximately 400' east of CR 117 are to widen this 1.18-mile section from a two-lane roadway to six-lane divided roadway and add pedestrian facilities. The City's Transportation Master Plan indicates this section of CR 112 should be enhanced to six-lanes. This supplemental is for additional design work to address 95% comments, developer coordination and continued utility coordination. The additional work required is described below according to each task to be performed. PROJECT MANAGEMENT A. Managing Contracted Services(Project Management) a. Coordination: The ENGINEER shall continue coordination with the CITY beyond the original scope of the contract related to additional design comments, developer coordination, future utilities, waterline easements, and utility relocations along the project for an additional 6 months. b. Subconsultant Coordination: The ENGINEER shall continue coordination with subconsultants (Survey/SUE) beyond the original scope of the contract related to the waterline easement and ongoing utility relocations. c. Project Management and Progress Report: The ENGINEER shall continue to meet with the internal design team and coordinate plan modifications across design disciplines for additional design CR 112—Round Rock,TX Pagel of 3 Exhibit B modifications. The ENGINEER shall continue to prepare monthly progress reports with invoicing to the City for review and approval for an additional 6 months. ROADWAY DESIGN A. Intersection Layouts: The ENGINEER shall prepare additional intersection layouts in conjunction with developer coordination for access at Colony Drive and Ekvall Drive and update other design sheets accordingly to include the intersection details. SIGNING.PAVEMENT MARKINGS AND TRAFFIC SIGNAL B. Signal Upgrade: The ENGINEER will update the existing signal detection AN construction plan details at A.W.Grimes and CR 112 per comments received at the 95%submittal. Signal detection modification was not part of the original scope of work. MISCELLANEOUS A. Plan Updates for Additional Design Changes: The ENGINEER shall update the Traffic Control, Drainage, Signing and Pavement Markings, Utility, and Erosion Control plans to accommodate the new intersecting streets(Colony Drive and Ekvall Drive). The ENGINEER shall also develop additional design sheets including traffic signs and summaries, cross street plan and profile layouts, culvert hydraulic sheets, 100-yr hydraulic calculation sheets,and pipe/box connection details. B. Utility Coordination: The ENGINEER shall continue to attend monthly utility coordination meetings with the City and private utility providers. The ENGINEER shall review design relocation plans, attend site visits to coordinate/verify relocations,and attend separate design coordination meetings to mitigate impacts with the proposed design. C. Developer Coordination and Utility Accommodations: The ENGINEER shal I coordinate improvements to adjacent design projects to address access management and connection of future utilities across the CR 112 project. The engineer shall prepare conduit and utility casing details and update design drawings, quantities, and specifications to include conduit for future utilities. D. Update Standards,Summary of Quantities,and Cost Estimates: The ENGINEER shall update relative roadway, drainage, signing and striping standards and associated plan details or bid items following most recent City or TxDOT standards.The engineer shall update the summary of quantity sheets and cost estimate to include the latest design modifications and update the construction cost estimate to include the latest bid items. CR 112—Round Rock,TX Page 2 of 3 Exhibit B CONSTRUCTION PHASE SERVICES A. Construction Meetings: The ENGINEER attend in-person weekly construction meetings at the onset of construction and transition to bi-weekly meetings as construction progresses. Anticipated additional twenty-six(26)construction meetings for the duration of the project. B. Notice of Design Changes: The ENGINEER shall prepare additional design details for requested design modifications from the City or Contractor required to mitigate conflicts or incorporate new design items into the project. Anticipate an additional five(5)notices or request for design changes. C. Utility Review and Verification: The ENGINEER shall evaluate additional utility relocation design and confirm locations for new utilities being constructed within the project limits. D. Pay Application Review: The ENGINEER shall evaluate contractor pay applications in accordance with work completed or stockpiled on site for each monthly billing period. CR 112—Round Rock,TX Page 3 of 3 Exhibit B ADDENDUM TO EXHIBIT C Work Schedule Attached Behind This Page amwrr.e.w.er lew) aerN/tt rr NRi 7 nyrar.�w.» wa.w it NNlMu/iV» WMmwe..a., tw.m ..w.tM,nM,nv» w �,.:,•+a�o.wer+r ayn�oiwn..wnno. wm aa,yNl Mt4an3 lrstoam 1ly.rww w�ani., wvun.m.oo.�m.nu txaa.w Tr NMia.m u,V3t sss.u4w i tn+A�...,n.�oo.�m.m. a uswwem.. .wem Mon tU)M MoA a leMe.Ypwr. wam TrNni Mivunt M t»em Tr Wit Tiw iUNt t ... sawn. tN Mlv3nl MiNR1 a rr..w IDM c.ro�an n.ww lsem —wilMimv f Wtgr�s..Y. roe..nr. t»ww aarl3mr.M./w» n.� roam ran iNMTiu)nn3 » w3r sem,nn tew sn)/xsn:M,rom u w••rw wnon,Ina a..� u•w. rrMi/t3MN+n: v .soar..n..�.. s aos•.nw ra.. tn.m aanV»/arr V3Ni n.n isaem as NM>ur 3n,n3 u .. .v.n..w M suemn�e tear Tr MN3 T.Ul l a s.wmin. cry olw ww.. mem WN V»/u)r MN3 i, � wacM ei nn...r. 1N oatn.s.. ua.m 1.I.a V»/3zM 1/1VM L � s ]OSMvsG[ wxe.n w.e V3V33Ta.V3N3 u ' �taaf Mtl sw.nx tear r.,aM/»MNU34 » T MswY. n W3s� uem Tr,/t•na nwNNa IIa•W aa..ery ]4r Tr)/Wx.Tr)/wn. n)s.ttem ee1wM.M.1 vem w..,/3Maw..VIM. x. W4wr••Mm.w.ewbn aewt 1a,V1Uxa Ta.NN. is n 6.rrlrnr iN wMVW)twr NN)t a»[airw.anaYw.• len Tai iVyy3,Ta.uVv4u xVs.3.am fw..Nw swan 11oe.w MtV3Na Ta,U3V» » n aawm »em ai i/nM M 3n,M » nwFc Attu n'a[w.n sa .. • na.0 r.rr i�-1 .... ..:. �... a. .....,... .� • ......... P-t ADDENDUM TO EXHIBIT D Fee Schedule Attached Behind This Page EXHIBIT D 6/27/2025 Project:CR 112 Final Design Fee Schedule-Lump Sum Firm Provider:Tetra Tech(RPS) No,1.I x.A Iii i,x n,,il xen4w'Pn,jrri tienwr Prnjerr R'njrcr Eneinerr Aa.,rixre Enainn•r tirnAa lk.iar)rr AJmiN T+xl Nod l.�tx,r hn t,rr TMY MYnYL'r En¢inrrr 111 ('k,icxl Hous. DWGS .beer AmoaY Project Management Coordunnion-1hCity 12 x 55,710.00 S)bcamduua Coordination Deliverables Review and Invoices 4 t 4 32,560.00 Pmgress Repom and Updal. 32,280.00 Subtotal: $10,530.00 Roadwa Desi n Roadwm Dcv Int—tion Layouts(Update all sheelsl 2 121 1 12 2 1 28 1 310,2&/,(X) Subtotal: $10,280.00 Signing,Pavement Markings,Signalization(Permanent) Trafrk S.tpial Trafrk S.gnrl D—g.Molificanon(I Location) I` 12 1 1 1 26 1 2 1 13 1 54,160.00 Subtotal: $4,160.00 Miscellaneous Plan Updat.for Additional D-go Charrges 12 1 1 1 36 2 Is $6,960.00 Uolu)Coordination 1 Ix 8 30 2 13 1 $6,200.00 D—Ioper Coordination and Utility Amorranadatiom II, 1 4 1 12 34 I 34 $6,400.00 Updalc Standards.Sunnnry of Qaara ties,and Cost Estimatcs 2 x 2 8 20 1 7 53,760.00 Snntoud $23.320.00 Construction Phase Services Conuwion Mmtitrgs(26 Additional) I.' 78 24 114 $23,a80.00 Nonce of Dcsjgn Cha x IB is 24 IX 86 $15,320.00 Uuht,Review and WrfOnatjon X 18 11 Is 62 511,600.00 Pay A -tion Review 16 16 $3,520.00 Subtotal: $54,320.00 HOURS SUB-TOTALS 224 52 1 14�1 u6 1 6 1 326 Rale $295 W $2X11 111 3220.00 5160.00 $140.01) $160.00 $100.00 SUBT'OT'AL $590.00 SM491,111, $49,280.00 $8,320.00 $19,600.00 $5,76000 5600.00 I SI02.6311.W DESCRIPTION TIUTALCO IN BY FC Project Management S 10,550.00 Roadway Design $ 10,280.00 Signing,Pavement Markings,Signalization(Permanent) S 4,160.00 Miscellaneous $ 23,320.00 Construction Phase Services S 34,320.00 It B101%1.1_1ROR ISPEIIES 5 IU2.o,iUpU OTHER DERECT EXPENSES 0O UNITS COST/UNIT Mika munber x N ni state rate) 1.560 $ 0.70 $I,W)2.W SUBTOTAL DIRECT EXPENSES SIr092.00 SUMMARY TOTAL COSTS $ 102,630.00 TOTAL SENSES $ 1092.00 GRAND TOTAL s 103,722.00 Page 1 of 1