TORONTO - Infrastructure Ontario and Metrolinx have selected Toronto Tunnel Partners (TTP) as the preferred proponent to design, build and finance the Highway 401 Rail Tunnel project, in support of the province's GO Regional Express Rail (RER) program. Members of the TTP team include: 

  • Applicant Lead: EllisDon Capital Inc. and STRABAG Inc.
  • Construction: EllisDon Civil Ltd. and STRABAG Inc.
  • Design: WSP Canada Inc., Dr. Sauer & Partners, Amec Foster Wheeler
  • Financial Advisor: EllisDon Capital Inc. and STRABAG Inc. 

The selection of TTP is the result of an open, fair and competitive procurement process overseen by a third party fairness advisor.

IO and Metrolinx expect to reach financial close in late fall 2017, with construction to begin shortly thereafter. 

The scope of work for the project includes construction of a second tunnel under Highway 401/409 to accommodate two tracks, future signaling, communications infrastructure, and replacing footings of retaining walls that support the ramp from eastbound Highway 409 to eastbound Highway 401.

Quick Facts:

  • The project is being delivered using IO's Alternative Financing and Procurement model, which transfers the appropriate risks associated with design, construction and financing of the project to the private sector.
  • Work on the Kitchener GO corridor is part of a larger, system-wide plan to improve overall GO Transit service, including the delivery of GO RER. GO RER will provide faster and more frequent service across the GO rail network, with electrified service on core segments, including the Union Pearson Express. It is one of the largest transit infrastructure investments in North America.
  • Ontario is making the largest infrastructure investment in hospitals, schools, public transit, roads and bridges in the province's history. To learn more about what's happening in your community, visit


“Ontario is moving forward to double capacity on the Kitchener GO Corridor. The new rail tunnel under Highways 401and 409 will support two-way, all-day service along the corridor through our GO Regional Express Rail (RER) program, making it easier and more convenient than ever before to take the GO. The new tunnel may also support future high speed rail service on this corridor.”
Steven Del Duca, Minister of Transportation

“Improving commute times and easing congestion are critical for families and businesses, and a priority for our government. I look forward to the completion of the Highway 401 Rail Tunnel project, which directly supports local jobs and a strong economy.”
Bob Chiarelli, Minister of Infrastructure

“With this announcement, Metrolinx will begin a new phase of construction by building a second rail tunnel under Highway 401/409. This tunnel will allow for two-way train traffic, enabling more service on the Kitchener GO corridor. This is all part of our plan to connect communities within the GTHA and improve the customer experience.”
Phil Verster, President and CEO, Metrolinx

“Upon successful evaluation of the proposals, we have a great solution for the Highway 401 Rail Tunnel by Toronto Tunnel Partners. Infrastructure Ontario looks forward to awarding the contract and beginning construction in the fall.”
Ehren Cory, President and CEO, Infrastructure Ontario

Learn More:

Infrastructure Ontario
Metrolinx and RER


Lisa DiMenna
Infrastructure Ontario

Anne Marie Aikins

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