TORONTO - Infrastructure Ontario (IO) and Metrolinx have issued a Request for Proposals (RFP) to five prequalified teams to build and finance the Lakeshore East - East Corridor Expansion project. The infrastructure upgrades are required to accommodate the planned expansion of GO Transit rail service on the Lakeshore East corridor.

Teams were selected based on criteria identified in the Request for Qualifications process that began in March 2017. Selection criteria included applicable construction experience and capacity to finance a project of this size and complexity.

The prequalified teams are:

  • EllisDon Infrastructure Transit
  • Regional Rail Construction Partners
  • Golden Horseshoe Infrastructure Partnership
  • Steel Head Constructors
  • Graham Commuter Rail Solutions

Teams invited to respond to the RFP will begin preparing proposals that detail how they will build and finance the project. Once submissions are received, IO and Metrolinx will evaluate the proposals, select a preferred bidder, and then negotiate a final contract. A successful bidder is expected to be announced in summer 2018. A fairness monitor will oversee the entire procurement process.

A copy of the RFP is available at

The scope of work for the Lakeshore East - East Corridor Expansion project includes:

  • Right-of-Way (ROW) works to construct 11 kilometers of third track infrastructure between Beechgrove Road and Durham Junction
  • Expansion and upgrade of two rail bridges at Rouge River and Highland Creek
  • Expansion and rehabilitation of existing culverts
  • Construction of retaining walls to support additional track grading for the corridor

This work will allow for increased GO rail service on the Lakeshore East line and will support the Province's GO Regional Express Rail (RER) initiative. GO RER is a plan to provide faster and more frequent service on the GO Transit Rail Network with electrification of core segments. Weekly trips across the entire GO Rail Network are expected to grow from about 1,500 to nearly 6,000 by 2024-25, representing a doubling of peak service and quadrupling of off-peak service.

Transit improvements like the delivery of GO RER are part of Ontario's plan to create fairness and opportunity during this period of rapid economic change. The plan includes a higher minimum wage and better working conditions, free tuition for hundreds of thousands of students, easier access to affordable child care, and free prescription drugs for everyone under 25 through the biggest expansion of medicare in a generation.

Quick Facts:

  • According to Ontario's 2017 Long-Term Report on the Economy, every $1 spent on public infrastructure has been shown to increase Gross Domestic Product by $6 in the long term.
  • Infrastructure Ontario, collaborating with Metrolinx, is leading the procurement of the Lakeshore East - East Corridor Expansion project.
  • The project is being delivered using IO's Alternative Financing and Procurement (AFP) model, an innovative way of financing and procuring large, complex public infrastructure projects.
  • 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, go to


“With this next step to improve the Lakeshore East line, we are moving along the path toward an improved GO system with more service across the GTHA. This will help local communities along the line, and is proof our government is committed to improving transit networks to enhance our quality of life.”
Steven Del Duca, Minister of Transportation

“The Lakeshore East - East Corridor Expansion project is critical to the overall improvements to GO transit and the delivery of the GO Regional Express Rail program. Our government recognizes the importance of these types of transit improvements because they keep people and goods moving, communities growing, and help build Ontario up.”
Bob Chiarelli, Minister of Infrastructure

“This is a very exciting improvement to the Lakeshore East corridor. We are increasing mobility to communities in Scarborough and Durham, and improving the customer experience through the GO expansion program. This portion of Lakeshore East - East Corridor Expansion project will deliver the infrastructure that will enable us to run more trains every day.”
Phil Verster, President and CEO, Metrolinx

“With qualified proponent teams selected for the Lakeshore East - East Corridor project, we look forward to receiving and evaluating competitive proposals in the coming months.”
Ehren Cory, President and CEO, Infrastructure Ontario

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Infrastructure Ontario


Bianca Lankheit
Infrastructure Ontario

Anne Marie Aikins

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