Simcoe Street Tunnel

The project required 1.6 kilometres of girders so Soncin, who was contracted by Fairmont Developments to construct the extension of Simcoe Street, built a precast facility on site.

[2] Design and construction of the tunnel posed significant challenges as the Union Station corridor has the highest train volume for a single terminus location in North America.

By not affecting the existing rail service of the 177 trains per day using the corridor, a risk of loss of ridership was removed that could have occurred in relation to potential delays.

Long and short distance travellers were continuously able to get to their destinations as planned, which helped to avoid an increase in the use of personal vehicles.

The original rail corridor was a major physical barrier between the downtown and the lakefront where continuous residential, recreational and business developments are occurring.

Former Mayor of Toronto, David Miller was quoted saying “The Simcoe Street underpass will improve downtown traffic flow and help provide important services to future development on the lands south of Union Station.