Work has started on four new Toronto subway stations for the Ontario Line.
Crews have broken ground on four new stations—Don Valley, Flemingdon Park, Thorncliffe Park and Cosburn Station— and a three-kilometre elevated guideway, Ontario’s Minister of Transportation announced on Wednesday.
The raised stretch of track will connect Don Valley, Flemingdon Park and Thorncliffe Park stations.
Once complete, the Ontario Line will be a 15.6-kilometre subway line, with 15 stations, running from Exhibition Place, through the heart of downtown, to Line 5 Eglinton at Don Mills Road.
The project is providing jobs, an estimated 4,700 jobs each year during construction, amid economic uncertainty and will help fight gridlock, Premier Doug Ford said. A trip from Pape and Danforth to Queen and University will take less than half the time, going from 25 minutes today to 12 minutes.

“The Ontario Line will be a game-changer for GTA residents, cutting travel times across Toronto and offering more than 40 convenient connections to other transit services across the region,” Ford said.
The Don Valley to Thorncliffe Park section will bring 30,500 people within walking distance of a subway stop and improve access to 14,800 jobs in the area.

A rendering shows plans for Thorncliffe Park Station. Rendering: Metrolinx
Cosburn Station will connect riders across the city to Toronto’s Pape Village neighbourhood for the first time and cut commute times for more than 10,000 people.

A image of plans for the Flemingdon Park Station. Rendering: Metrolinx
The elevated guideway will carry Ontario Line trains up to 14 metres above street level, starting at the west end of Overlea Boulevard in Thorncliffe Park and running north to Don Valley Station at Don Mills Road and Eglinton Avenue East.

An image of the design for the Don Valley Station. Rendering: Metrolinx
The Ontario Line will help hundreds of thousands of Torontonians get where they need to go faster and more reliably, said Olivia Chow, Mayor of Toronto.
“This new line will bring more people within walking distance of transit, reduce congestion on our roads, and make daily commutes shorter for families and workers,” said Chow. “As Mayor, I am committed to keeping the TTC affordable by freezing fares for three years while increasing service and improving reliability. We are also introducing fare capping this year so Torontonians can ride more and pay less. The City and Province will continue working together to deliver affordable and convenient transit that keeps Toronto moving.”

A image of the design for the Cosburn Station. Rendering: Metrolinx
The Ontario Line is part of a $70 billion expansion of public transit—this includes covering over 80 per cent of the capital construction costs on the project, Ford said.
As of August 2024, the estimated cost for the line was just over $27 billion. Recent reports indicate the Ontario Line will be complete in 2031.
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