Span of highway in St. Catharines opens after dangerous chemical spill


Published May 12, 2022 at 10:20 pm

Highway 406 in St. Catharines fully reopened around 10 p.m. on Thursday night, following a chemical spill that necessitated road repairs.

The closure on the northbound 406 lasted for more than a day. The southbound lanes had reopened on Wednesday.

The closure was required after a truck leaked hydrochloric acid on the highway between Westchester Crescent and Glendale Avenue. The ruined asphalt needed to be removed and then the roadway had to be repaved.

Real-time traffic data for all 400-series and provincial highways can be found at


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