Dump truck rollover causing traffic chaos on Highway 407 in Oshawa

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Published June 18, 2026 at 9:33 am

Dump truck rollover, Highway 407 Oshawa

A dump truck rollover on an on-ramp to Highway 407 in Oshawa is causing traffic snarls in the north end of the city.

The OPP is advising motorists to avoid the eastbound on-ramp of Highway 407 at Simcoe Street.

The ramp is closed following the rollover. Police and emergency services are on the scene. “Please avoid the area and use alternate routes.”

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