Highway 402 (Ontario) : Ask Biography

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King's Highway 402, commonly referred to as Highway 402 and historically as the Blue Water Bridge Approach, is a 400-series highway in the Canadian province of Ontario which connects the Blue Water Bridge international crossing near Sarnia to Highway 401 in London. It is one of two vital trade links between Ontario and the Midwestern United States. The freeway is four-laned and controlled access for nearly its entire length, except on the approach to the Blue Water Bridge, where it widens. The only sizable community along Highway 402 between Sarnia and London is Strathroy.

Although Highway 402 was one of the original 400-series highways created in 1952, it was not completed until 1982, when the final link between Highway 81 and Highway 2 opened to traffic. Prior to 1970, the freeway did not exit Sarnia, and merged into Highway 7 near the present Highway 40 interchange.

Motorists crossing into the United States at the western end have direct access to Detroit, Chicago, and Minneapolis-St. Paul via I-94; motorists crossing onto the Canadian side from the east end of I-94 have access to Toronto via Highway 401, and on to Montreal via A-20 in Quebec.