TORONTO - Infrastructure Ontario and Metrolinx have awarded a fixed-price contract of $254.5 million to EllisDon Transit Infrastructure (EDTI) to design, build and finance the Stouffville Corridor Stations Improvement project, in support of the province's GO Regional Express Rail (RER) program. 

Members of the EDTI team include:

  • Applicant Lead: EllisDon Capital Inc.
  • Construction: EllisDon Civil Ltd.
  • Design: WSP / MMM
  • Financial Advisor: EllisDon Capital Inc.

EDTI was selected as the successful proponent as the result of an open, fair and competitive procurement process overseen by a third party fairness monitor.

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

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. 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, by 2024-25. As part of GO RER, weekly trips across the entire GO rail network will grow from about 1,500 to nearly 6,000 by 2024-25.

EDTI will commence design in March 2018, with construction beginning in September 2018 and substantial completion expected by December 2020.

Providing faster and more frequent transit service is 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:

  • The project is being delivered using IO's Alternative Financing and Procurement (AFP) model, which transfers appropriate risks associated with design, construction and financing of the project to the private sector.
  • The province is investing $21.3 billion to transform the GO Transit Network from a commuter transit system to a regional rapid transit system. This 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


“Today's announcement is good news for the people who use the Stouffville GO line, and is a good example of how our government is moving forward with Regional Express Rail that will deliver exceptional service to people living across the GTHA. The communities along the line will benefit from better GO service, along with useful customer features like new platform canopies and new pedestrian connections.”
Kathryn McGarry, 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 Stouffville Corridor Stations Improvement project, which directly supports local jobs and a strong economy.”
Bob Chiarelli, Minister of Infrastructure

“The improvements at Milliken, Agincourt, and Unionville GO Stations are an exciting development for customers because it will mean more and better GO Train service, better access at stations, and a grade separation to enhance community and customer safety. In everything we do, we're looking to make customer journeys better, faster, and easier.”
Phil Verster, President and CEO, Metrolinx

“We are pleased to announce another AFP contract awarded to help deliver Metrolinx's Regional Express Rail program. EllisDon Transit Infrastructure will soon begin construction works on three stations along the Stouffville corridor that will ultimately provide improved access to the regional transit network.”
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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