TORONTO - Infrastructure Ontario (IO) and Metrolinx have issued a Request for Proposals (RFP) to three teams shortlisted to design, build and finance the Milton Corridor project. This project is part of Metrolinx's work to provide faster, more frequent and convenient transit service across the Greater Toronto and Hamilton Area (GTHA), as part of the GO Regional Express Rail (RER) program.

The shortlisted teams and their prime team members are:

Milton Transit Group

  • Applicant Lead: Aecon Group Inc., Buttcon
  • Construction Team: Aecon Group Inc., Buttcon
  • Design Team: Stantec, RJC
  • Financial Advisor: Aecon Concessions

Milton Integrated Transit Team

  • Applicant Lead: Sacyr Construccion S.A., Grascan Construction Ltd.
  • Construction Team: Sacyr Construccion S.A., Grascan Construction Ltd.
  • Design Team: AECOM, Zeidler Partnership Architects
  • Financial Advisor: KPMG Corporate Finance Inc.

Ledcor MM Partners

  • Applicant Lead: Ledcor Industries Inc.
  • Construction Team: Ledcor, Soncin Construction Ltd.
  • Design Team: IBI Group, Morrison Hershfield
  • Financial Advisor: PricewaterhouseCoopers LLP

The teams were selected based on criteria identified in the Request for Qualifications process that began in November 2017. Criteria included design and construction experience and the financial capacity to deliver a project of this size and complexity.

These teams are now invited to respond to the RFP and will begin preparing proposals that detail how they will design, build and finance the project. IO and Metrolinx will evaluate the proposals, select a preferred proponent and award a final contract, anticipated to be announced in winter 2019. A fairness monitor is overseeing the entire procurement process.

The RFP outlines the scope of work required for the project:

Milton GO Station

  • New station building
  • Reconfiguration and expansion of parking lot layouts, bus loop and passenger pick-up/drop-offs
  • Accessible connections to train and bus platforms
  • Reconfiguration and expansion of existing rail platform to an island platform with pedestrian tunnel connections and infrastructure to support future layover of trains
  • Upgrade of parking lot and additional parking spaces
  • Improved pedestrian and cyclist connections and bicycle storage

Meadowvale GO Station

  • New station building
  • Reconfiguration of parking lot layouts, bus loop and passenger pick-up/drop-offs
  • Accessible connections to train and bus platforms
  • Repair and replacement of damaged catch basins and storm sewer lines
  • Upgrade of parking lot
  • Improved pedestrian and cyclist connections and bicycle storage

Station Operations West Facility

  • Partial demolition and retrofit/renovation of a vacant office and warehouse facility to accommodate future office, warehouse and parking needs for GO operations
  • New secured fleet vehicle parking lot
  • Improved pedestrian connections 

A copy of the RFP is available at

Quick Facts:

  • 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 design, construction and financing of the project to the private sector.
  • 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

“I am very pleased to see progress on this important work to connect communities in one of our fastest growing regions. The Milton Corridor project will bring greater convenience and comfort for commuters with improvements to station capacity, accessibility, integration with local transit and more frequent rush-hour service.”
Kathryn McGarry, Minister of Transportation

“The Milton Corridor 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

“It is exciting to reach yet another milestone in our plan to improve GO Transit service across the region. These station and operations facility improvements are integral to supporting increased service on the Milton corridor, and to making the transit experience better for our customers.“
Phil Verster, President and CEO, Metrolinx

“For the Milton Corridor project, teams will sharpen their pencils to submit proposals that provide a great design solution and best value for the province.”
Ehren Cory, President and CEO, Infrastructure Ontario

Learn More

Infrastructure Ontario


Lisa DiMenna
Infrastructure Ontario

Anne Marie Aikins

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