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September 3, 1999: Fog causes devastating pile-up on Highway 401

Staff writers
September 2, 2012 — On September 3, 1999 a freak change in weather caused a horrific 87 vehicle pile-up on Highway 401 near Windsor, Ontario.

A stagnant air mass led to the rapid development of thick fog at ground level leaving drivers with nearly impossible driving conditions.

Eight people were killed and forty-five transferred to hospital.

A state of emergency was declared as rescue personnel dealt with mangled vehicles -- some fused together by fire.

It was the largest pile-up in Canadian history.

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