Image shows crews working in the tunnels.

Go deep below Eglinton Station to see new video of underpinning work right below TTC line

The Eglinton Crosstown Light Rail Transit line continues to make significant headway. In this case, we can lead you down to see remarkable advances that mean the TTC tunnel is held in place as Crosstown work continues below.

It’s a beautiful day in Toronto, but the more impressive view is deep below the city.

At the corner of Yonge and Eglinton, Crosstown’s Eglinton Station reached an important milestone last week where the team completed the underpinning process. Underpinning involves reinforcing the existing TTC station so that work on the new station can continue even deeper below.

Image shows crews working in the tunnels.
A look at the world where the underpinning work is taking place. (Metrolinx photo)

Check out this latest video that takes you below Eglinton Station to see the completed underpinning process. With this work complete, the TTC tunnel is effectively secured in the air, allowing excavation to continue underneath.

In 2019, constructor Crosslinx Transit Solutions (CTS), installed the first massive support girder for the underpinning operation at the site. After carefully working to ensure that work did not disrupt the operational subway above, weight was successfully transferred to the ‘needle beams’ under the Line 1 subway tunnel in late May, completing the cradle of supports.

Large underpinning beams are shown.
A close look at the underpinning. (Metrolinx photo)

Need a refresher on the process? Here’s a refresher video we published one year ago.

Story by Erika D’Urbano, Metrolinx senior advisor.