The F.G. Gardiner Expressway is a key corridor that runs through downtown Toronto, supporting regional mobility and access. To extend the service life of this elevated structure, the City of Toronto advanced a multiphase strategic rehabilitation program. Our team has supported planning, design, procurement, and delivery across four of six sections.
We approach the Gardiner Expressway work as an interconnected program, where continuity of knowledge, lessons learned, and coordinated decision-making support delivery. Our work has included preliminary and detailed design, owner’s engineer and technical advisor roles, procurement support, post-award services, and contract administration, with insight into how decisions affect adjacent work and traffic operations.
For the Jarvis Street to Cherry Street section, we provided contract administration support for superstructure replacement and structural rehabilitation, which included precast panels, traffic staging, drainage and lighting updates, and traffic management systems. Between Dufferin Street and Strachan Avenue, we served as lead designer and Engineer of Record under a design-build model for deck and girder replacement, substructure rehabilitation, and coordination with adjacent transit projects tied to the 2026 FIFA World Cup. In the Cherry Street to Don Valley Parkway section, we completed feasibility and preliminary design for the realigning of the Gardiner Expressway and interim rehabilitation design.
We are currently serving as the prime consultant for rehabilitation of the Kipling Avenue and Islington Avenue bridges, two six-lane arterial crossings within the broader program. This includes condition assessments, rehabilitation design, multidisciplinary coordination, traffic staging, and services during construction. Additionally, for the Grand Magazine Street to York Street section, we are acting as owner’s engineer and technical advisor, supporting condition assessments, reference concept design, and procurement through construction.
Along with the previously mentioned program sections, we have completed other significant rehabilitation assignments on the Gardiner Expressway. These include the CNE to Grand Magazine Street deck replacement and Garrison Road Bridge demolition, as well as the at-grade bridge rehabilitation from Park Lawn Road to the Humber River.
Together, this program reflects a corridor-wide approach to managing infrastructure in an active urban environment.
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