Significant Progress on Toronto’s Ontario Line
2/25/2026
In Toronto’s east end, crews have broken ground on four new Ontario Line subway stations—three of which are elevated and another located underground. This represents major progress on the project that will bring 15 new stations to the city running nearly 10 miles from Exhibition Place downtown to Line 5 Eglinton east of the Don River.
The line is expected to bring a multitude of benefits to Toronto residents, including less crowding on existing lines, connections to more than 40 other transit lines, shorter travel time to downtown, reduced traffic congestion, and increased economic opportunity.
Above Ground
An “elevated guideway” will connect the three east end stations now under construction: Thorncliffe Park, Flemingdon Park, and Don Valley. Metrolinx calls the guideway one of the most distinctive and architecturally significant sections of the new transit line.
Along other parts of the Ontario Line, bridge work is taking place at three new crossings (West Don, Don Valley, and Lower Don) and existing rail bridges are being upgraded throughout Riverside and Leslieville.
Below Ground
Work has begun on the Cosburn Station, putting 10,300 people within walking distance to the station and linking to 1,300 area jobs. The station joins up to Pape Station, where crews are digging down to the existing TTC station.
Station excavation is underway or completed at all downtown sites. Crews are starting to add concrete, steel, and other permanent station components. At Exhibition, crews are preparing to launch tunnel boring machines this spring to cut through dirt, soil, and rock below the streets of downtown. Construction is underway at a second launch shaft at Gerrard Street, where two additional tunnel boring machines will carve out the northern tunnels.
Project Benefits
Metrolinx estimates the Ontario Line will bring livelihood and environmental benefits. It estimates:
- 227,500 people will live within a 10-minute walk of an Ontario Line station
- Up to 57,000 more jobs will be accessible in 45 minutes or less, on average
- Reductions in rush hour crowding and reduced daily travel time
- Economic and community growth along the future transit line
- Thousands of job opportunities annually during construction
- Reduction in traffic congestion, greenhouse gases, and fuel consumption