As we’ve taken readers from end to end at every stop and station along Toronto’s Crosstown light rail transit (LRT) system, we’re constantly adding updates on the progress being made. Today, a sneak peek at the underpinning work being done at Cedarvale station to reinforce the existing foundation of the adjoining TTC subway station to allow work to place on the LRT.
The ajority of the western portion of Toronto’s Eglinton Crosstown LRT project will be below ground and that means there is a ton of action going on below the surface.
A lot of this work has to be extremely precise so that existing infrastructure, like the TTC subway lines, aren’t disturbed.
At Cedarvale station, the 6th station along the line when traveling west to east, there is serious digging taking place to underpin the existing TTC subway structure so that the LRT construction can continue safely.
We’ve got a short time-lapse showing out the underpinning work is going:
For people not well versed in construction terms, in this case underpinning involves carefully sliding in steel supports that will disperse the load to six ‘king’ piles, which will act as the new foundation for the station box. This allows crews to excavate below the existing TTC subway station.