Excavation begins for Ontario Line’s first downtown subway tunnels
Excavation has started near Exhibition Station for the Ontario Line’s tunnel boring machine (TBM) launch site.
This 16-meter-deep shaft will mark the starting point for two TBMs that will create twin tunnels spanning approximately six kilometers—the first downtown subway tunnel project in Toronto in over 60 years.
The twin tunnels will stretch from east of Exhibition Station to just west of the Don River. Once tunneling is complete, the shaft will serve as a transition portal, allowing Ontario Line trains to move from elevated to underground tracks.
When fully operational, the 15.6-kilometer Ontario Line will extend transit access to 227,500 more residents in Toronto.
Community safety measures
Metrolinx emphasized its commitment to safety and community support throughout the construction process, particularly in Liberty Village, where the work is ongoing. Collaborating with the City of Toronto and local partners, the agency aims to minimize disruptions by optimizing traffic signals, deploying paid-duty officers, and coordinating around major events such as the CNE and FIFA tournaments.
Metrolinx will continue working with community members to implement solutions that ease the impact of construction, ensuring residents retain access to essential infrastructure.
Related News
From Archive
- TxDOT advances massive drainage tunnel beneath I-35 in Austin
- Glenfarne Alaska LNG targets late-2026 construction start for 807-mile pipeline project
- U.S. water reuse boom to fuel $47 billion in infrastructure spending through 2035
- $2.3 billion approved to construct 236-mile Texas-to-Gulf gas pipeline
- Major water pipe break in Puerto Rico hits over 165,000 customers
- Pennsylvania American Water launches interactive map to identify, replace lead water service lines
- Trump's tariffs drive $33 million cost increase for Cincinnati sewer project
- Utah city launches historic $70 million tunnel project using box jacking under active rail line
- Tulsa residents warned after sewer lines damaged by boring work
- Fatal trench collapse halts sewer construction in Massachusetts; two workers hospitalized
Comments