King Street West

Coordinated City-TTC construction returns to King Street West

Starting in November 2026, the City of Toronto and TTC will resume coordinated infrastructure improvements on King Street West.

Work will begin with replacement of the 139-year-old twin watermains, followed by joint City-TTC streetcar track renewal.

By coordinating this work, the City and TTC can complete critical infrastructure upgrades while reducing future construction-related disruptions.

Construction areas

Work will take place in the following areas:

• Dufferin Street to Close Avenue
• Spadina Avenue to Portland
• Street Bathurst Street to Shaw Street
• King Street West and York Street intersection

Project start and end dates for each work area will be posted on this webpage once confirmed.

Learn more about the City's watermain replacement work

Visit the City's project webpages for information about construction schedules, impacts, and project updates:

• King Street Construction: Dufferin Street to Close Avenue
• King Street Construction: Spadina Avenue to Portland Street

Attend a Virtual Public Information Meeting

Join City staff for a presentation on upcoming construction activities, followed by a question-and-answer period.

Date: Wednesday, November 4, 2026

Time: 6:30 p.m. to 8:00 p.m.

Visit the City's project webpage to register.

TTC service changes

Starting November 1, 2026

In preparation for upcoming watermain replacement work, the following service changes will be introduced:

• 504/304 King streetcars will operate as a single branch between Dundas West Station and Broadview Station.
• 504C/304C King replacement buses will operate between Roncesvalles Avenue and Distillery (Front Street East and Cherry Street).
• 503 Kingston Rd replacement buses will extend west to Dufferin Gate Loop.
• 508 Lake Shore streetcars will be suspended.

When work begins: Dufferin Street to Close Avenue

Start date to be confirmed

When watermain replacement work begins between Dufferin Street and Close Avenue, the following service changes will be introduced:

• 504/304 King streetcars will divert via Queen Street West between Shaw Street and Roncesvalles Avenue.
• 504C/304C King replacement buses will continue operating between Roncesvalles Avenue and Distillery (Front Street East and Cherry Street).
• 503 Kingston Rd buses will continue operating to Dufferin Gate Loop.
• 508 Lake Shore streetcars will remain suspended.

View a map of these service changes.

When work begins: Spadina Avenue to Portland Street

Start date to be confirmed

When watermain replacement work begins between Spadina Avenue and Portland Street, the following service changes will be introduced:

• 504/304 King streetcars will divert via Queen Street West between Spadina Avenue and Roncesvalles Avenue.
• All other service changes described above will remain in effect.

View a map of these service changes.

Wheel-Trans service

Wheel-Trans service will continue to operate throughout construction.

Additional TTC service changes in early 2027

Additional TTC service changes will be required as construction progresses through 2027.

Advance notice will be provided on this webpage and through customer notices distributed in affected communities.

Transit priority measures on Queen Street West

During construction on King Street West, both 504 King and 501 Queen streetcars will operate on Queen Street West between Spadina Avenue and Roncesvalles Avenue, increasing streetcar activity along the corridor.

To help keep transit service reliable and reduce delays, the City of Toronto will introduce the following temporary transit priority measures on Queen Street West:

Extended "no-stopping" prohibitions

Monday to Friday, 7 a.m. to 11 a.m. and 2 p.m. to 7 p.m.

• North side: Roncesvalles Avenue to Dufferin Street
• North side: Dufferin Street to Shaw Street

Monday to Sunday, 7 a.m. to 11 a.m. and 2 p.m. to 7 p.m.

• South side: Roncesvalles Avenue to Dufferin Street
• South side: Dufferin Street to Shaw Street
• South side: Shaw Street to Spadina Avenue
• North side: Shaw Street to Spadina Avenue

Temporary turn restrictions

Monday to Saturday, 7 a.m. to 7 p.m.

• Eastbound left turn on Queen Street West at Sorauren Avenue
• Eastbound left turn on Queen Street West at Dufferin Street
• Eastbound left turn on Queen Street West at Dovercourt Road
• Westbound left turn on Queen Street West at Dovercourt Road
• Westbound left turn on Queen Street West at Strachan Avenue

Monday to Friday, 2 p.m. to 7 p.m.

• Westbound left turn on Queen Street West at Portland Street
• Westbound left turn on Queen Street West at Augusta Avenue

The measures will be removed once construction on King Street West is complete and 504 King streetcars return to their regular route.

Learn more about the City Council-approved transit priority measures on Queen Street West.