King Street West
Starting in late November 2026, the City of Toronto will resume coordinated construction on King Street West. This page provides information about construction, TTC service changes, and temporary transit priority measures along Queen Street West that will help keep transit and traffic moving while 504/304 King streetcars divert during construction.
At a glance
- Construction is expected to begin as early as late November 2026.
- The City of Toronto will replace two 139-year-old watermains, followed by joint City-TTC streetcar track renewal in the same areas.
- Initial TTC service changes began on November 1, 2026.
- 504/304 King streetcars will begin diverting via Queen Street West once construction starts later in November..
- Temporary extended "no-stopping" prohibitions and new turn restrictions being implemented on Queen Street West to help keep transit and traffic moving during construction-related transit diversions.
What's happening?
As early as late November 2026, the City of Toronto and TTC will resume joint infrastructure work on King Street West. The project will start with City-led watermain replacement, followed by City-TTC streetcar track renewal. By coordinating this work, the City and TTC can continue to renew critical infrastructure at the same time and reduce future construction-related disruptions in the local community.
Construction locations and timelines
| Location | Timeline (estimated) |
|---|---|
| From Dufferin Street to Close Avenue | Late November 2026 to August 2027 |
| From Spadina Avenue to Portland Street | December 2026 to August 2027 |
| From Bathurst Street to Shaw Street | Spring 2027 to summer/fall 2027 |
| At the King Street West and York Street intersection | June 2027 to August 2027 |
Visit the City's King Street Construction webpage for the latest information on watermain replacement work, construction schedules, work hours, travel impacts, and project updates, and to subscribe for construction email notifications.
TTC service changes
On November 1, 2026, in preparation for the City's watermain replacement work on King Street West, the following service changes were introduced:
- 504/304 King streetcars began operating as a single branch between Dundas West Station and Broadview Station.
- 504C/304C King replacement buses began operating between Roncesvalles Avenue and Distillery (Front Street East and Cherry Street).
- 503 Kingston Rd replacement buses were extended west to Dufferin Gate Loop.
- 508 Lake Shore streetcars were temporarily suspended.
Starting as early as late November 2026, to accommodate City watermain replacement work on King Street West, between Dufferin Street to 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.
- All other service changes introduced on November 1 will remain in place.
View the service changes map.
Starting as early as December 2026, to accommodate City watermain reaplcement work on King Steet West, between Spadina Avenue and Portland Street, the following service changes will be introduced:
- 504/304 King streetcars will divert further east via Queen Street West between Spadina Avenue and Roncesvalles Avenue.
- All other service changes introduced on November 1 will remain in place
View the service changes map.
Please note: The exact timing of these service changes will be posted on this webpage once confirmed.
Wheel-Trans
Wheel-Trans service will continue to operate throughout construction.
Looking ahead
Additional TTC service changes are expected as construction progresses in 2027. Details will be posted on this page once confirmed.
Changes on Queen Street West
Why are transit priority measures needed?
During construction on King Street West, 504/304 King streetcars will divert to Queen Street West. To help manage the additional streetcar activity, the City of Toronto will implement temporary transit priority measures between Spadina Avenue and Roncesvalles Avenue.These measures will help keep transit and traffic moving during construction on King Street West.
Learn more about the City Council-approved transit priority measures on Queen Street West.
Similar measures have helped manage congestion and support reliable transit service during previous construction projects in the area.
The measures are as follows:
Temporary left-turn restrictions on Queen Street West
| Restriction | Location(s) | Days and hours |
|---|---|---|
| Eastbound left-turns prohibited | Sorauren Avenue, Dufferin Street, and Dovercourt Road | Monday to Saturday, from 7 a.m. to 7 p.m. |
| Westbound left-turns prohibited | Dovercourt Road and Strachan Avenue | Monday to Saturday, from 7 a.m. to 7 p.m. |
| Westbound left-turns prohibited | Augusta Avenue | Monday to Friday, from 2 p.m. to 7 p.m. |
Temporary extended 'no stopping' prohibitions on Queen Street West
| Side of street | Section of Queen Street West | New "no stopping" hours |
|---|---|---|
| North | Roncesvalles Avenue to Dufferin Street; Dufferin Street to Shaw Street | Monday to Friday, 7 a.m. to 11 a.m. and 2 p.m. to 7 p.m. |
| North | Shaw Street to Spadina Avenue | Monday to Sunday, 7 a.m. to 11 a.m. and 2 p.m. to 7 p.m. |
| South | Roncesvalles Avenue to Spadina Avenue | Monday to Sunday, 7 a.m. to 11 a.m. and 2 p.m. to 7 p.m. |
When will these changes take effect?
Information about sign installation and implementation dates for these temporary measures will be posted on this page once available.
When will theses changes end?
The temporary transit priority measures will be removed once construction on King Street West is complete and 504/304 King streetcars return to their regular route.
Stay informed
Stay up to date on King Street West construction, TTC service changes, and temporary transit priority measures on Queen Street West:
- Check this page regularly for project updates and TTC service information
- Contact the project team to sign up for construction updates
- View the latest public notices
Notices
Notices will be posted here as they become available.
Contact us
If you have questions about the project or would like to receive construction updates, please contact:
Michael Vieira
Senior Community Liaison
437-551-4609