Toronto's Crumbling Elevated Expressway: Repair or Remove?

As the full extent of the instability of Toronto's elevated Gardiner Expressway, and the city's apparent cover-up of the information, becomes clear, the new chief planner has weighed in on what the priorities should be in addressing the problem.

2 minute read

December 19, 2012, 2:00 PM PST

By Jonathan Nettler @nettsj


CN Tower rises above Gardiner Expressway on Toronto Waterfront

George Socka / Wikimedia Commons

The signs of the Gardiner's fialing health have been raining down on Toronto's streets for some time. After at least seven incidents of falling-concrete this year, and a recent Toronto Star investigation that showed "the crumbling highway is in a state far worse than city staff previously told the public," the city's new chief planner Jennifer Keesmaat has waded into the debate over the future of Toronto's main commuter artery, reports Robyn Doolittle.

With reports indicating that, "[w]ithout half a billion dollars in emergency repair work to the deck, nearly half of the elevated portions of the Gardiner could be structurally unsafe within a decade," Keesmaat said "she is opposed to spending massive sums on infrastructure focused on 'moving more cars,'” and instead, "believes tax dollars are better spent on improving public transit." 

"Keesmaat, who has been in the job less than six months, said she wants to immediately resume an environmental assessment that was quietly shelved after Mayor Rob Ford’s election," notes Doolittle. "That study was supposed to provide a cost-benefit analysis of tearing down versus maintaining the structure."

Writing in Spacing Toronto, Ken Greenberg sees the deterioration of the expressway as an opportunity for the city to engage in a serious discussion about "a more sustainable balance of mobility options."

"At a certain point," he says, "the cost and difficulty of maintaining or in our case entirely rebuilding these structures raises the question of whether it makes sense to keep them. Rather than replacement, the decaying infrastructure can be modified or altered to become one that favours more environmentally sound means of getting around harmonizes with a more productive city form."

Tuesday, December 18, 2012 in The Toronto Star

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

November 11, 2026 - Zachary Whalen

A road in north eastern Nebraska with power lines on either side, and grassy fields.

Eastern Nebraska is running out of electricity

Data centers and electrification are straining eastern Nebraska’s grid, throttling economic development.

November 6, 2026 - Grist

People walking in downtown St. Louis, walking past shops.

Move over, LA: St. Louis gears up for Olympics, invests millions in downtown redevelopment

The Missouri city will host the 2028 Olympic soccer group stage and knockout matches.

November 1, 2026 - Smart Cities Dive

Construction in Dallas. An aerial shot of a wooden frame of an apartment building.

Dallas releases zoning code overhaul to officials

The drafted overhaul is over 400 pages long.

November 11 - Dallas Morning News

Canal street, where pedestrians are packed shoulder to shoulder.

NYC renovations for dangerous, ‘mercilessly crammed’ street delayed until 2027

Construction was supposed to begin this fall.

November 11 - Gothamist

A rendering of Midway Rising that shows people mingling in a green space between apartment buildings.

San Diego’s Midway Rising project gets greenlight from city council

The project looks to become the largest affordable housing development in California's history.

November 11 - KPBS

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.