Increased transit services are coming to Toronto’s east end with the new East Harbour Transit Hub.

The interchange station in Toronto’s east end will deliver more transit options, reduce commute times and ease congestion across the network. Once complete, it will connect to the Lakeshore East and Stouffville GO lines, and the future Ontario Line subway, providing access to GO trains and TTC services all in one location.

While the hub will directly serve the Riverdale, Riverside and Leslieville communities, its impact will reach far beyond the surrounding neighbourhoods, reshaping how people move across the region. 

Major construction began on the East Harbour Transit Hub in summer 2025 with crews working on the station’s structural foundations. They are also widening the rail corridor in the area. Once complete, there will be six tracks – four for GO trains and two for Ontario Line trains.

Here’s a look at some of the construction progress so far.

Constructing the foundation

In May, crews began working on structural foundations to support the weight of the station and the trains that will run on the tracks above. This includes installing reinforced concrete caissons and drilling piles deep into the earth.

To support the rail corridor, crews have been building retaining walls. First, they cleared the site area and conducted excavation to level the ground. Now, they’ve installed concrete formwork and have reinforced the base of the walls with caissons.

Building bridges

As part of work on the East Harbour Transit Hub, we’re completing major infrastructure improvements to the Eastern Avenue bridge that will enable increased GO train service.

The first half of the bridge work is now complete, and train traffic has been shifted to the new portion of the bridge while the other half is widened.

For the other half, crews have been constructing abutments – underlying structures located at the ends of a bridge that offer support, retain the embankment, and transfer loads from the bridge down to the foundation and surrounding soil. In addition, they’ve been installing central supports to help evenly distribute weight from the bridge deck to the ground.

Work has also started on building a new bridge over Broadview Avenue. Crews have completed excavation and installed secant piles, with caisson installation currently underway.

Improving interconnectivity

By bringing multiple transit systems together, the East Harbour Transit Hub will provide riders an option to switch between GO and TTC services in Toronto’s east end, instead of travelling all the way to Union Station. This will help reduce crowding at Union by as much as 14 per cent – or 14,000 people – during rush hour.

Combined with Ontario Line users, the station will connect about 100,000 daily riders. As part of GO Expansion, customers could see trains arriving at the hub as frequently as every five minutes during the busiest travel hour and Ontario Line trains arriving as frequently as every 90 seconds.

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

For more information on the East Harbour Transit Hub, please visit the project page and follow @GOExpansion on X and Instagram.