Granby Traction Power Substation and Duct Bank Replacement Project

Timeline:
Starting as early as November 28th, Granby Positive and Negative Feeders and Duct Bank Replacement construction will be taking place in multiple stages on sections of Yonge Street, Sheard Street, and Granby Street until May 2026*

* Content/timeline accurate at the time of printing. Pending weather, unforeseen site conditions, and events.

What we are doing and why:
The Traction Power Upgrade program involves critical upgrades to TTC’s traction power substations (TPSS), necessary to support the power demands for increased train service and expanded subway station capacity.  To upgrade its TPSS infrastructure, TTC requires to upgrade and install new electrification and servicing infrastructure within the City’s road right-of-way.

The TTC is going to construct a new underground traction power duct bank between Granby Substation and the Hayter Breaker Room near College Station. This duct bank will carry adequate spare capacity for future Traction Power Cables.

What to expect:
Work will typically take place Monday to Friday between 7 a.m. and 7 p.m. Some work on weekends between 9 a.m. and 7 p.m. may be required. For safety, overnight work may be required.

Efforts will be made to keep disruption associated with noise and dust to a minimum

Access to subway service will be maintained throughout construction.

Road Closures on Yonge Street: November 2025to early January 2026*

Stage 1: Southbound lanes on Yonge Street. Occupation of two southbound traffic lanes. Two lanes of traffic remain open (one southbound and one northbound). No impact to pedestrian clearway.

Stage 2: Through lanes on Yonge Street. Occupation of one southbound and one northbound lane. Two lanes of traffic remain open (one southbound and one northbound). No impact to pedestrian clearway.

Stage 3: Northbound lanes on Yonge Street. Occupation of two northbound lanes. Two lanes of traffic remain open (one southbound and one northbound). Sidewalk occupation on the east side of Yonge Street at McGill Parkette. Pedestrian clearway on Yonge Street to be maintained at all times.

Road Closures on Sheard Street and Granby Street: January to May 2026*

Stage 4: McGill Parkette and Sheard Street. Closure of a portion of Sheard Street, occupation of a portion of McGill Parkette. Sidewalk closure on the west side of Sheard Street adjacent to occupation. Pedestrian clearway maintained on the east side of Sheard Street and through McGill Parkette.

Stage 5: Granby Street and Sheard Street. Closure of a portion of Sheard Street and partial sidewalk closures on the west and east sides of Sheard Street adjacent to occupation. Pedestrian clearway maintained around the occupation on the west side of Sheard Street and through Joseph Sheard Parkette on the east side of Sheard Street.

Stage 6: Granby Street. Closure of a portion of Granby Street and sidewalk closure on the and south side of Granby Street adjacent to occupation. Pedestrian clearway maintained on the north side of Granby Street.