Bloor-Yonge Capacity Improvements Project Construction Notices

Effective April 2023

For background information, please visit the project page.

Geotechnical Work: Borehole Drilling and Hydrovac Work at 830 Church Street

Timeline: As early as November 25, 2024

Starting as early as November 25, 2024, the TTC will commence borehole drilling and hydrovac work at 830 Church Street. Work will take place Monday to Friday, from 8:00 a.m. to 5:00 p.m. The work will require drilling machinery, as well as vehicles moving in and out of the work site. A high-pressured vacuum system mounted on a truck will be used to hydrovac the site and our borehole locations before we start drilling. Noise will be evident when work is in full operation. This geotechnical work is part of the early works for the Bloor-Yonge Capacity Improvements (BYCI) project.

These dates and timelines are subject to change depending on weather and site conditions.

What to expect

Borehole drilling at 830 Church Street
A high-pressured vacuum system mounted on a truck will be used to hydrovac the site and our borehole locations before we start drilling
Work will take place Monday to Friday, 8:00 a.m. to 5:00 p.m.
Noise and vibrations will be evident when work is in full operation

Thank you for your patience during this work.

Preparatory Work to Expand Bloor-Yonge Station

Bloor-Yonge Station is the busiest subway station on the TTC. The original station opened in 1954 and now requires expansion and modernization to accommodate future TTC ridership and neighbourhood density.

The project includes significant upgrades to enhance customer safety, accessibility and service quality.

Improvements include:

A new eastbound Line 2 (Bloor-Danforth) passenger platform
An enhanced westbound Line 2 passenger platform created by reconfiguring the existing shared centre platform
Expansion of both northbound and southbound Line 1 (Yonge-University) passenger platforms
Enhanced concourse level
New elevators, escalators and stairwells to improve station circulation
A new accessible subway entrance at 81 Bloor Street East

What to Expect

- Preparatory construction works are not expected to impact subway service or access to Bloor-Yonge Station.
- Preparatory work started in May 2023. In order to build a new, accessible subway entrance at 81 Bloor Street East (former site of The Firkin), the TTC will remove the existing structures at 81 Bloor St East, and 40/42 Hayden Street. The TTC has also removed the former carwash at 830 Church Street beside the Toronto Reference Library to build a future fan building to enhance air circulation at the station.
- There will be a reduction in the Sherlock Holmes Laneway and short-term walkway closures to install construction hoarding beside the Toronto Reference Library for this work. At 81 Bloor Street East, there will be some rerouting of pedestrians when the canopy is removed from the existing building during demolition. Short term rerouting of pedestrians to the sidewalk and curb lane in front of 40/42 Hayden Street will also be required.
- At the same time, hydro and sewer utilities will be relocated.
- Phased reductions on the sidewalks and curb lanes are expected on Bloor Street East between Yonge Street and Park Road.
- Access to businesses and residences will be maintained at all times.
- The utility relocation work will begin in Q3 2023 and continue until Q3 2024.
- Work hours will typically be Monday to Friday from 7 a.m. to 7 p.m. Extended, weekend or overnight work hours will be communicated to the community well in advance.
- Typical construction noise and vibration can be expected with this work.

Preparatory Work Map and Scope of Work

Demolition of 830 Church Street carwash (Completed)
Demolition of 81 Bloor St East /40-42 Hayden Street (In progress)
Utility works – Hydro relocation on Bloor Street (Q3 2023)
Utility works – Sewer relocation on Bloor Street (Q3 2023)
TTC Community Office – 25 Hayden Street (Opened Q2 2023)

Contact us
If you are interested in receiving updates about this project, please sign-up to our email list. If you require any information about the project, please email blooryongeproject@ttc.ca or call 416-472-2524.

Please view the main project page for more information.