GO Expansion – Early Works

Province: Ontario

City/Region: Greater Toronto-Hamilton Area

Image Credit: Metrolinx

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Project Rank

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Project End: 2026

Project Type: Rail

Industry Sector: Transit

Project Amount: $10.513 billion

Date of Completion: 2026

Funding Source: Public

Provincial Funding: Capital allotment to Metrolinx: $10.513 billion

LEED Status: Certified

Previous Rankings

20257
20247
20237
20227
20218
20207
20268

About The Project

The Early Works portion of the GO Expansion project is one of three blocks of works to be done to accommodate two-way, all-day transit throughout the GTHA corridor. There are over 50 individual projects included in the early works program, including 40 smaller projects delivered as Design-Build or Design-Bid-Build, along with 12 larger projects delivered as Build-Finance and Design-Build-Finance. The latter includes the Davenport Diamond Rail Grade Separation Project, for which the winning bidder was selected in July 2019, and the Highway 401 Rail Tunnel, which began construction in March 2019, and the Stouffville Corridor Stations Improvement project. The program also includes the Union Station Enhancement project, which will see construction of a new South Concourse, track expansion east of the station and replacement of the 90-year-old signalling system with new state-of-the-art signals, communications, power supply, CCTV, and SCADA systems.

Project Owner: Metrolinx

Project/Construction Manager: Procurement Agent: Infrastructure Ontario

P3 Team Members/Project Team: DBF Team (Highway 401 Rail Tunnel): Toronto Tunnel Partners • Applicant Lead: EllisDon Capital Inc. and STRABAG Inc. • Construction: EllisDon Civil Ltd. and STRABAG Inc. • Design: WSP, Dr. Sauer & Partners, Amec Foster Wheeler • Financial Advisor: EllisDon Capital Inc. and STRABAG Inc. DBF Team (Davenport Diamond Grade Separation project): Graham Commuter Rail Solutions • Applicant Lead: Graham Capital Partners LP and Gracorp Capital Ltd.; Graham Construction and Engineering LP • Construction: Graham Construction and Engineering LP • Design: LEA Consulting Ltd. as Design Lead; EXP; International Bridge Technologies; Brown & Storey Architects Inc. • Financial Advisor: Graham Capital Partners LP AllianceTeam (Union Station Enhancement Project): ONTrack Alliance • Constructors: Kiewit-Alberici Union General Partnership • Designers: WSP (methane ventilation system) • Signalling Work: Mass. Electric Construction Canada Co.

Engineer: Wood (WSP) (consulting/geotechnical studies); Parsons; Hatch; AECOM; GHD (engineer-design)

Contractor: EllisDon (Dufferin/Queen bridge); Kenaidan/Cole Engineering (rapid pedestrian tunnels)

Other Key Players: 4-Transit JV (technical advisory services): Hatch, Parsons, WSP; CIMA+ (utilities relocation); Stantec (ownerÕs technical advisors team (sub-consultant to Gannett Fleming); Accenture (project manager); Jacobs (program mgmt.); A.W. Hooker Associates Ltd. (cost consultant); Golder (WSP) (Environmental Services); INTECH (risk advisor); Deloitte (transaction advisor); Aon (risk advisor); Hemmera; Entuitive; EXP; GFL (shoring, soil management); Turner & Townsend (project controls); E.S. Fox; TULLOCH; Egis; KPMG; LRI Engineering; Marsh Canada (risk advisor)

Legal: Borden Ladner Gervais; Norton Rose Fulbright (owner’s advisor); Torys

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