TORONTO - Infrastructure Ontario (IO) and Metrolinx have issued a Request for Proposals (RFP) to three shortlisted teams to design, build and finance the Lakeshore West Infrastructure Improvements project. The infrastructure upgrades are required to accommodate the planned expansion of GO Transit rail service on the Lakeshore West line. 

The shortlisted teams were selected based on criteria identified in the Request for Qualifications process that began in December 2017. Criteria included their design and construction capability, experience, qualified personnel and financial capacity to deliver a project of this size and scope. 

The teams are:

  • Steelhead
  • EllisDon Infrastructure Transit
  • West Link Partners 

These teams are invited to respond to the RFP and will begin preparing proposals that detail how they will design, build and finance the project. Once submissions are received, IO and Metrolinx will evaluate the proposals, select a preferred proponent and then negotiate a final contract. A successful proponent is expected to be announced in early 2019. An independent fairness monitor is overseeing the entire procurement process.

A copy of the RFP is available at

Scope of work for the project includes:

  • Exhibition station in-corridor enabling works and track improvements
  • Mimico station improvements and accessibility
  • Long Branch station improvements and accessibility
  • Clarkson station in-corridor enabling works
  • Kerr Street grade separation
  • Bronte station in-corridor enabling works
  • Burloak Drive grade separation
  • Drury Lane pedestrian bridge replacement
  • Lewis Road layover facility expansion  

Quick Facts:

  • Work on the Lakeshore West Line is part of a larger, system-wide plan to improve overall GO Transit service, including the delivery of GO Regional Express Rail by 2024-25. To support these transit improvements, Metrolinx will be undertaking major infrastructure upgrades, including additional track, GO station modifications, improved rail crossings, systems required for electrification, and new locomotives and train control systems to enable more frequent service.
  • The province is investing $21.3 billion to transform the GO rail network from a commuter transit system to a regional rapid transit system.
  • The project is being delivered as a Design Build Finance (DBF) contract using Infrastructure Ontario's Alternative Financing and Procurement (AFP) model, which transfers risks associated with construction and financing of the project to the private sector.


“Today's announcement is more good news for commuters and families who rely on the Lakeshore West GO line to get them where they need to go. Earlier this month, we added new late-night and weekend service on Lakeshore West. With the improvements planned for this line, we are on track to deliver two-way, all-day electrified rail service between Union Station and Aldershot by 2025.”
Kathryn McGarry, Minister of Transportation

“When it comes to a person's everyday commute, every minute counts. These upgrades will help provide new and improved travel options for local residents, including faster and more frequent service.”
Bob Chiarelli, Minister of Infrastructure

“Today's announcement launches us toward an even better experience for our customers on the Lakeshore West line. We're very excited to get going on these projects, as they will bring better connections to our stations and the surrounding community, more frequent service and faster, electric trains.“
Phil Verster, President and CEO, Metrolinx

“We have three qualified proponent teams vying for the Lakeshore West Infrastructure Improvements project. We look forward to receiving competitive proposals and announcing a successful proponent for this important project.”
Ehren Cory, President and CEO, Infrastructure Ontario

Learn More

Infrastructure Ontario


Bianca Lankheit
Infrastructure Ontario

Anne Marie Aikins



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