Today, Toronto City Councillors received a staff report that could have major implications on a longstanding issue: what to do about the Gardiner Expressway. Built during the heyday of highway infrastructure, the Gardiner has become an expensive and dangerous piece for the City to maintain, costing millions each year. Chunks of the concrete have fallen onto roadways below the expressway in recent years, and the Gardiner has become emblematic of North America’s lagging postwar faith in technological solutions to urban problems.
Removing the Gardiner Expressway completely has never been on the agenda, at least not in realistic terms, even though cities around the world are struggling through similar decisions. The City is at the end of an extensive environmental assessment process that looked at options for repairing, replacing, or maintaining the section of the Gardiner that runs from Jarvis to the Don Valley Parkway. This 1.7km stretch of the expressway handles only 3% of peak hour trips to downtown. During the morning rush, about 5000 trucks and 500 cars use this stretch every hour. The EA process has spanned six years and consulted over 3,500 stakeholders, but did a thorough job of investigating each option using cost estimates over a 100-year life cycle. The transportation projections used in the evaluation of the options included the assumption that transit alternatives to the expressway will be in place by 2031, including the waterfront LRT, the downtown relief line, and improvements to GO Transit; this would negatively impact demand for the expressway.
The three options currently being discussed are:
- Remove and replace. An eight-lane boulevard from Jarvis to the DVP would replace the Gardiner This is the cheapest option but you can imagine how long and disruptive the construction would be–it’s estimated at six years but this is Toronto, so figure on a decade–and there would be detours for at least four years. It’s estimated that 75% of driving trips would not change. The cost is estimated at $326 million in capital costs and $135 million in operations and maintenance over the 100-year life cycle ($461 million). This was the City’s preferred option back in 2013–and it’s still the cheapest.
- Maintain. The City spends millions on maintaining the Gardiner each year because it’s near the end of its lifespan–and because like many cities, maintaining existing infrastructure isn’t exactly a sexy budget expenditure. The cost would be $342 million in capital costs and $522 million in operations and maintenance over the 100-year cycle ($864 million).
- Replace with a hybrid. This would involve building a new connection to the DVP. Construction is estimated at six years–but would likely be much longer and involve traffic rerouting as well. An estimated 90% of driving trips would not change. The cost is estimated at $414 million in capital and $505 million in operations and maintenance over the 100-year life cycle ($919 million).
City staff is now conducting what is likely the final round of public consultation on the options (never say never) and will present a final report to Council on June 21st. If the selected option is approved by the Province, construction could begin in 2018.
Update: Chief planner Jennifer Keesmaat came out in favour of the Remove and Replace option on May 22nd, although Mayor John Tory favours Maintain.