THORNHILL, ONT. — Ontario Premier Doug Ford is revealing more details about his planned tunnel under Highway 401, even as a feasibility study he's commissioning has yet to get underway.
Speaking at an unrelated transit announcement today in Thornhill, Ont., north of Toronto, Ford said his plan is to have a 19.5-metre-wide, three-level tunnel, with one level going eastbound, one for westbound traffic and a bottom level for transit.
Ford has previously said a feasibility study will determine the length.
The province issued a request for proposals for the study in the spring and has not yet selected a proponent, but the government appears to be forging ahead with plans.
Global News and CBC reported this week that documents obtained under freedom-of-information requests show the government was looking at the idea as far back as 2019, but shelved it in 2021.
Global reports that an analysis of the tunnel idea several years ago mentions a risk of "roadway collapse."
This report by The Canadian Press was first published Aug. 6, 2025.
Allison Jones, The Canadian Press
