The effects of age, heavy daily usage, weather and salt have made it necessary to undertake a major multi-year rehabilitation of the Expressway to keep it operational for the future.

Because the Gardiner runs across several areas of the city, including established neighbourhoods, two river mouths and the city’s downtown core, a Strategic Rehabilitation Plan was created by the City to deal with this large, complex and important project.

View from underneath the Gardiner Expressway, revealing its substructure and supports.

Find out more about the City’s work to rehabilitate and realign the expressway.

Section 1 from Jarvis Street to Cherry Street was completed in 2021. Accelerated bridge construction was used to replace the steel girders and concrete deck with pre-fabricated sections.

This project will replace the elevated portion of the Expressway from Dufferin Street to Strachan Avenue. Learn more.

This section of the Gardiner from Highway 427 to the Humber River will reconstruct 6.5 km of at-grade expressway, including rehabilitation of 11 overpass bridges (including Mimico Creek) and four underpass bridges (Kipling Avenue, Islington Avenue, Royal York Road and Grand Avenue). Planning for this section of the project is underway to determine scope, phasing, staging and the construction schedule.

This project will replace 2.2 kilometers of the elevated section of the Expressway from Grand Magazine Boulevard to York Street.

This section will reconstruct the elevated Expressway from Cherry Street to the Don Valley Parkway, according to the Hybrid Design as approved in the Gardiner East Environmental Assessment.

The alignment of both the Expressway and Lake Shore Boulevard will shift slightly to the north of the current location. Some initial work as part of this transformation has already been completed, such as removing the Logan Street on/off ramps, in order to allow construction of a longer and wider bridge for Lake Shore Boulevard over the Don River.

The project is being coordinated with several other major projects in the area including: Metrolinx’s Ontario Line, the Port Lands Flood Protection Project (naturalization/flood protection of the Don River estuary), Waterfront East LRT, the East Harbour development and the Waterfront Toronto redevelopment of the area.

Artist’s renderings (2016) of Hybrid Option 3, with Section 5 of the Gardiner Expressway moved to the north. Artist rendering of reconfigured Lake Shore Boulevard, the reconfiguration of the mouth of the Don River and the re-positioned Cherry Street Bridge – which are being done as part of the large Port Lands redevelopment.

Artist’s renderings (2016) of Hybrid Option 3, with Section 5 of the Gardiner Expressway moved to the north. The reconfigured Lake Shore Boulevard, the reconfiguration of the mouth of the Don River and the repositioned Cheery Street Bridge, which are being done as part of the large Port Lands redevelopment. 

For more information about the Gardiner section from Cherry Street to the Don Valley Parkway, please see Section 5: East End Reconfiguration.

The scope of work for this section of the Gardiner Expressway is pending an engineering evaluation. The Gardiner is frequently inspected and the City conducts regular maintenance to keep this and other portions in a state of good repair.

Gardiner Construction Update

The City is rehabilitating the Gardiner Expressway between Dufferin Street to Strachan Avenue. Subscribe to receive details of construction activities that may be disruptive.

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Engineering and Construction Services collects your personal email address under the legal authority of the Toronto City Council Item 2016.EX20.14 as confirmed by the City of Toronto By-law 1290-2016 and the Toronto City Council Item 2022.IE27.3 as confirmed by the City of Toronto By-law 104-2022. The information will be used to inform subscribers through email about the Gardiner Rehabilitation Section 2 – Dufferin Street to Strachan Avenue project. Questions about this collection can be directed to the Program Manager, Customer Service and Issues Management, 100 Queen Street West, Toronto, Ontario, M5H 2N2 or by telephone at 416-397-1864.