Major construction starts on East Harbour Transit Hub

The new transit hub in Toronto’s east end will connect customers to GO Transit and the Ontario Line.

June 18 – Major construction has started on the East Harbour Transit Hub, a new interchange station coming to Toronto’s Riverdale neighbourhood that will ease congestion and strengthen transit options for the City of Toronto and beyond. 

Crews have started working on the station’s structural foundations by installing reinforced concrete caissons, drilling piles and building retaining walls to support the weight of the station and tracks. Once this work is complete, crews will pour concrete to form the base of the main station building.  

Preliminary work to widen the Eastern Avenue bridge to support more tracks began in 2023. Once finished, the bridge will have six tracks — four for GO trains and two for the Ontario Line. The first half of the bridge work is now complete — train traffic has been shifted to the new portion of the bridge while the other half is widened.

Metrolinx will continue to communicate with the community and customers to ensure they are aware of construction impacts. 

Station benefits 

The East Harbour Transit Hub, located east of the Don Valley Parkway and south of Eastern Avenue, will shorten travel times by connecting riders to the Lakeshore East and Stouffville GO lines and the Ontario Line subway, which will allow customers to access destinations along Queen Street and up to Eglinton Avenue without having to transfer through Union Station. Diverting traffic from Union Station will reduce crowding by as much as 14 per cent – or 14,000 people – during rush hour.  

The East Harbour Transit Hub will feature:  

• A concourse area for easy transfers between GO Transit and the Ontario Line 
• An accessible passenger pick-up and drop-off area 
• A customer service area 
• Secure and outdoor bike parking 
• Connections to the future Broadview Avenue extension 
• Convenient single-train connections to Pickering, Whitby, Oshawa, Stouffville, Unionville and Markham, as well as Mississauga, Oakville and Hamilton 

Customers could see trains arriving at the East Harbour Transit Hub as frequently as every five minutes during the busiest travel hour. The station is expected to serve about 100,000 daily riders combined with Ontario Line users.  

The East Harbour Transit Hub, part of the GO Expansion program, is a joint initiative of the Government of Canada, Province of Ontario, City of Toronto and Metrolinx. The contract for major construction was awarded in March 2025. 

In addition, the hub will be integrated into a 38-acre Transit Oriented Community that will bring new residential and commercial space.  

To keep up with progress on construction, follow GO Expansion on Instagram, X, and Facebook. 

For accredited journalists, you can contact our media team at mediarelations@metrolinx.com.  

For customers, please visit Metrolinx – Contact Us to contact the Community Engagement team.