TORONTO - The request for proposals stage has closed for teams to submit their bids to design, build and finance GO Transit station improvements on the Stouffville GO Corridor for the GO Regional Express Rail (RER) program. 

Following a fair, open and transparent request for qualifications process, three teams - EllisDon Transit Infrastructure, Kenaidan Obayashi Transit Partners, and Kiewit-Bird Joint Venture - were prequalified and invited to respond to a request for proposals in September 2016. All three teams have submitted their proposals by today's deadline. 

Over the next several months, Infrastructure Ontario (IO) and Metrolinx will evaluate the proposals, select a preferred proponent and then award the final contract anticipated for early 2018. An independent fairness monitor is overseeing the entire procurement process.

The project includes upgrades to tracks, platforms with canopies, new pedestrian connections and amenities at the Milliken, Agincourt, and Unionville GO Transit stations along the Stouffville Corridor. The project also includes the road/rail grade separation at Steeles Avenue, with a railway overpass bridge.

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

Quick Facts:

  • The project is being delivered using IO's Alternative Financing and Procurement model (AFP), which transfers risks associated with design, construction and financing of the project to the private sector.
  • Work on the Stouffville GO Corridor is part of a larger, system-wide plan to improve overall GO Transit service, including the delivery of GO RER by 2024-25. To support transit improvements, Metrolinx will be undertaking major infrastructure upgrades, including additional tracks, GO station modifications, improved rail crossings, required systems for electrification, and new locomotives and train control systems to enable more frequent service.

Learn More

Infrastructure Ontario
Metrolinx and RER


Lisa DiMenna
Infrastructure Ontario

Anne Marie Aikins

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