High tolls at the Ambassador Bridge are pushing commercial truck traffic north to Sarnia
Canada's busiest trade corridor has quietly moved north.
High tolls at the Ambassador Bridge have driven record commercial traffic through the Blue Water Bridge, allowing the Sarnia, Ont., crossing to overtake Windsor as the busiest commercial crossing on the Canada-U.S. border for the first time in decades.
"The Blue Water Bridge has surpassed all other international crossings in commercial traffic volume," Alexandre Gauthier, the communications manager for the Federal Bridge Corporation Limited (FBCL) said in an email to CBC News.
FBCL is a Crown Corporation that owns and operates certain border crossings, including the Blue Water Bridge.
For every month in 2025, the Blue Water Bridge surpassed the Ambassador Bridge, with about 2.1 million commercial truck trips at Sarnia that year compared to roughly 1.9 million at Windsor, according to data from the Bridge and Tunnel Operators Association.
The trend has continued into 2026. In the first three months of the year, the Ambassador Bridge saw 496,796 commercial truck trips, compared with 531,732 at the Blue Water Bridge...
This was excerpted from the 7 April 2026 edition of CBC News.