547 W. Jackson Boulevard, Chicago, IL 60661 312-322-6900 metrarail.com

April 21, 2020 Subject: Letters of Interest & Qualifications (LIQ) No. 54632 Program Management Oversight Services for Capital Program Addendum No. 3 Dear Sir/Madam: The subject Addendum is being issued to correct, amend, add and/or delete certain words, phrases, sentences, or paragraphs in LIQ No. 54632. This Addendum No. 3 consists of:

1. A second Pre-Proposal Conference has been scheduled for Monday, April 27, 2020 at 11:00

A.M. and will be held via audio conference call only. Any Contractors who wish to participate in the Pre-Proposal Conference must RSVP by e-mail to the Sr. Contracting Agent, Steve Bauman, at sbauman@metrarr.com no later than 4:00 P.M. on April 23, 2020 to receive information to access the conference call.

2. Attached is the list of Contractors who RSVP’d for the Pre-Proposal Conference on April 20, 2020.

All addenda are to be acknowledged on Page 35 of the Professional Services Agreement. Failure to acknowledge addenda may be cause for your proposal to be considered non-responsive. Sincerely, James Barker Department Head Construction & Facilities Maintenance Procurement SB

James Barker Sb for JB

Name Company Title Phone EmailEileen Chin R.M. Chin & Associates, Inc. President 312-595-2000 eileenc@rmchin.comCarolyn Valentino Bowman Consulting Senior Marketing Specialist 630-869-6009 cvalentino@bowmanconsulting.comPaul Novak LTK pnovak@LTK.comAngela Boyle Comprehensive Construction Consulting, Inc. Business Development and Marketing 312-353-3000 aboyle@comprehensivecc.comPaul Lopez Czaplicki Lopez, PLLC 630-915-8861 paul.lopez@czaplickilopez.comMaureen McNaney Ascent Sr. Vice President Controls 773-732-9852 maureen.mcnaney@ascentpgm.comJames S. Szczupaj HNTB CORPORATION Dept. Manager – Rail/Transit 312-798-0337 jszczupaj@HNTB.comThomas Nutter PMCS VP Construction Services 773-908-6946 tom@pmcsconsulting.comStephen T. Vaughn Cera Solutions President & CEO 312-924-2904 svaughn@cera.solutionsPaul Gregoire Globetrotters Engineering Corporation Chief Operating Officer 312-697-3669 paul.gregoire@gec-group.comJay T. Olson GSG Consultants, Inc. Program Director 630-994-2630 jolson@gsg-consultants.com

STEPHANIE HUNT Ascent DIRECTOR, MARKETING & BUSINESS DEVELOPMENT 312-505-8699 stephanie.hunt@ascentpgm.com

JI WON NOH Ascent SENIOR MARKETING SPECIALIST 312-448-1956 jiwon.noh@ascentpgm.comSidney Sparks S.L. King Technologies, Inc Senior Transit Associate 678-628-9473 ssparks@slking.comJoseph Hunn Cotter Consulting Vice President Transportation 630-2970128 j.hunn@cotterconsulting.comDan Drew TY Lin International 312-777-2894 Daniel.drew@tylin.comPaula Pienton TY Lin International 312-777-2895 Paula.pienton@tylin.comDorota Dabrowski TY Lin International Marketing Manager 312-777-2896 Dorota.dabrowski@tylin.comKat Porter DELTA ENGINEERING GROUP, LLC. Marketing Coordinator 312.291.6576 kporter@deg-america.comShuja Kazi DELTA ENGINEERING GROUP, LLC. 312.291.6577S M Kazi DELTA ENGINEERING GROUP, LLC. 312.291.6578D. David Moses Gannett Fleming, Inc. Manager - Highway and Rail 312-894-7089 dmoses@gfnet.comLynn Kessen Knight E/A, Inc. Marketing Manager 312-577-3300 lkessen@knightea.comMae C. Whiteside CKL Engineers, LLC President/CEO 312-763-2989 mwhiteside@ckleng.comKevin Spitz CKL Engineers, LLC 312-763-2989 kspitz@ckleng.comAndrew Herlihy CKL Engineers, LLC 312-763-2989 aherlihy@ckleng.comA. Kevin Kassay LOCHNER Senior Project Manager 312.994.9730 Kassay, Kevin <kkassay@hwlochner.com>Bob Kimicata Kimicata Rail Consulting, Inc. 773-718-2232 rdkimicata@krailinc.comPhil Pasterak WSP USA 312-347-7887 Phil.Pasterak@wsp.comCatherine Woods WSP USA Senior Marketing Coordinator 312-347-7887 Catherine.Woods@wsp.comChris Ferguson WSP USA 312-347-7887 Christopher.Ferguson@wsp.comElaine Fisher WSP USA 312-347-7887 Elaine.Fisher@wsp.comLaurie Stahlman WSP USA 312-347-7887 Laurie.Stahlman@wsp.comTom Goodyer WSP USA 312-347-7887 Thomas.Goodyer@wsp.comTim Selover WSP USA 312-347-7887 Tim.Selover@wsp.comTARA CASEY STV Inc. Proposal Manager tara.casey@stvinc.comKelly Messacar PMA Consultants Sr. Associate, Marketing 773.796.3905 kmessacar@pmaconsultants.comDax Ponce de Leon PMA Consultants 773.796.3906 dax@pmaconsultants.comAndrew Chattaway PMA Consultants 773.796.3907 achattaway@pmaconsultants.comDerek Hubbartt GHD 773-380-9933 derek.hubbartt@ghd.comOren Skidelsky Facet Engineering 773-852-2425 oskidelsky@facetengineering.netTed Niemeyer V3 Companies 815-341-9050 tniemeyer@v3co.comJ.S. Ivanyo AECOM Director, Rail Group 312-861-4042 joe.ivanyo@aecom.comJoseph Lorenzini TY Lin International Joseph.Lorenzini@tylin.comMegan Benetatos AECOM Megan.Benetatos@aecom.comEmily Achelpohl AECOM Emily.Achelpohl@aecom.comCarl Graves CBRE Sr. Construction Project Manager 312-861-7890 carl.graves@cbre.comDaniel W. Herring Lochner Operations Manager 312-994-9727 dherring@hwlochner.comJames Hamelka Collins Engineering, Inc. Sr. VP 312-236-5117 jhamelka@collinsengr.comAndrea Wong SUMAC 773-857-7906 awong@sumacinc.comRoy Donoso SUMAC rdonoso@sumacinc.comRon Dean SUMAC rdean@sumacinc.comDolan McMillan Collins Engineering, Inc. Business Development Manager 312-236-7874 dmcmillan@collinsengr.comBrian Umbright EXP brian.umbright@exp.com Tim Neumann EXP Timothy.neumann@exp.com John Flint EXP John.Flint@exp.comReece Bailey EXP Reece.Bailey@exp.comAmy Frankowski EXP Marketing Manager 312-616-7406 Amy.Frankowski@exp.com Paul E. Bobby STV Inc. Director of Railroad Engineering 312-553-8422 paul.bobby@stvinc.comDuana Love TranSmart EJM Chief Multimodal Transportation Engineer 312-802-5620 dlove@transmartinc.comCatherine Carpenter TranSmart EJM Marketing Manager 312-922-1700 CCarpenter@ejmengineering.comRob Brunetti Patrick Engineering Sr. Vice President 630-795-7207 rbrunetti@patrickco.comT. Carey Patrick Engineering tcarey@patrickco.comG. Campbell Patrick Engineering gcampbell@patrickco.comDan Hughes Bronner Group Government Services Manager 312-265-6563 dhughes@bronnergroup.comRobin Martel Wight & Company Senior Project Manager 312-261-5700 rmartel@wightco.comMichael McMurray Wight & Company mmcmurray@wightco.comJavier Romero Rubinos & Mesia Engineers, Inc. Marketing Coordinator 312-870-6607 JRomero@RME-i.comFarhad Rezai Rubinos & Mesia Engineers, Inc. 312-870-6600 FRezai@RME-i.comMohsen Farahany Rubinos & Mesia Engineers, Inc. 312-870-6601 MFarahany@RME-i.comLorraine Prendergast J.A. Watts, Inc. Sr. Project Manager 773-383-1580 lprendergast@jwincorporated.comDan Griffin J.A. Watts, Inc. 773-255-4481 dgriffin@jwincorporated.comDave Johnson J.A. Watts, Inc. 773-619-3446 djohnson@jwincorporated.comEd Schoonveld J.A. Watts, Inc. 312-590-9787 eschoonveld@jwincorporated.comJason Barton RailPros 281-989-9408 Jason.barton@railpros.comJonathan Wnek RailPros 281-989-9409 Jonathan.wnek@railpros.comRuby Williamson RailPros 281-989-9410 Ruby.williamson@railpros.comSam Gogoi RailPros 281-989-9411 Sam.gogoi@railpros.com

Metra LIQ No. 54632 - RSVP List for the April 20, 2020 Pre-Proposal Conference

ADDENDUM NO. 3 , DATED APRIL 21, 2020