Ontario Highway 402

highway in Ontario

Ontario Highway 402, also called King's Highway 402, is a provincial highway in southwestern Ontario, Canada. It connects the Blue Water Bridge in Sarnia and Ontario Highway 401 in London. The highway runs mostly east-west. The only large municipality along the highway is Strathroy-Caradoc.

Highway 402 marker

Highway 402

Highway 402 highlighted in red
Route information
Maintained by Ministry of Transportation of Ontario
Length102.5 km[1] (63.7 mi)
HistoryPlanned: 1938
Designated: 1953
Completed: 1982
Major junctions
West end I-69 / I-94 at Canada–United States border on Blue Water Bridge in Point Edward
Major intersections
East end Highway 401 in London
CountiesLambton, Middlesex
Major citiesSarnia, London
Highway system
Highway 401Highway 403

Construction on the highway started in 1939 but was stopped due to World War II. Work started again in 1952. The highway was finished in 1982. In 2009, the westbound part of the highway near Sarnia was widened from four lanes into six lanes.


  1. Ministry of Transportation of Ontario (2010). "Annual Average Daily Traffic (AADT) counts". Government of Ontario. Archived from the original on July 6, 2011. Retrieved October 6, 2011.
KML is from Wikidata