Gardiner Expressway Closure and Dowling Bridge Removal This Weekend

The City of Toronto will be performing spring maintenance activities on the Gardiner Expressway as well as demolishing the Dowling Avenue bridge over the expressway starting this Friday. A full closure of the expressway is needed to ensure safety for the public and for the workers involved.

This weekend presents an opportunity for City workers to perform maintenance on the expressway as there are few major events occurring in the downtown core. The Mayor's Road Closures Committee meets monthly to select traffic closure dates with the goal of limiting disruption to motorists.

In order to mitigate traffic congestion associated with the expressway closure, the City will make changes to traffic-signal timing to enhance traffic flow on nearby routes.

The Gardiner Expressway will be closed between Carlaw Avenue and Highway 427/Queen Elizabeth Way from 11 p.m. on Friday, May 13 to 5 a.m. on Monday, May 16 for the maintenance work.

Specific activities that will be undertaken during this closure:

  • demolition of the Dowling Avenue bridge that spans the Gardiner Expressway
  • resurfacing 2.5 lane-kilometres of roadway
  • crack sealing and repair of about 8,900 metres of asphalt surfaces
  • 800 square metres of bridge deck repair
  • in-depth inspection and chipping of 32 bridges west of Dowling Avenue and 24 bridge sections on the elevated portion of the expressway
  • flushing of 120 bridge joints
  • cleaning and repair of 600 catch basins, and flushing and inspection of culverts
  • shoulder re-grading to restore drainage at several locations
  • sign maintenance for entire length of roadway
  • maintenance of 20 closed-circuit television (CCTV) cameras
  • inspection and repair of seven overhead signs
  • repairs on RESCU vehicle detectors
  • repair of approximately 500 metres of guiderail, including end treatments and safety systems
  • mechanical sweeping operations and debris removal
  • inspection, repair and re-lamping of street lights
  • pothole repairs, and
  • pavement markings.

Motorists can use Lake Shore Boulevard, the Queensway, King Street, Bloor Street and Evans Avenue as alternative routes during the weekend closure.   

The work schedule for the project on Lake Shore Boulevard between York Street and Rees Street has been adjusted so all westbound lanes of traffic can re-open during the full closure of the Gardiner Expressway. The lane reductions currently in effect at that section of Lake Shore Boulevard will go back into effect at 5 a.m. on Monday, May 16.

The City has a web-based map to help residents and visitors make their travel plans, available at

In addition, the City's T.O. INview map shows planned capital construction work taking place across the city. T.O. Inview can be accessed at

This work is part of the City's comprehensive and co-ordinated strategy to rehabilitate and upgrade Toronto's roads, transit and underground infrastructure for current and future needs.

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