Ontario Highway 22

King's Highway 22, commonly referred to as Highway 22, was a provincially maintained highway in the Canadian province of Ontario, located between Sarnia and London. Since 1998, the majority of the former route has been known as Middlesex County Road 22 and Lambton County Road 22. It began at Highway 7 and Highway 79 north of Watford and proceeded 46.0 kilometres (28.6 mi) east to Highway 4 in the north end of London. Between those two points, it passed through the small communities of Wisbeach, Dejong, Adelaide, Wrightmans Corners, Hickory Corner, Poplar Hill, Lobo, and Melrose. The highway was located within Lambton County, Middlesex County, and the city of London, and it followed the historic Egremont Road

Highway 22 was designated in 1927 to provide a route between Sarnia and London; until then, the only provincial highway connection between the two cities was a circuitous route via Highway 7 and Highway 4 through Parkhill and Elginfield. The original routing of Highway 22 passed through Watford and Strathroy until a more direct route was established in 1947. The function of Highway 22 was largely supplanted by the completion of Highway 402 throughout the 1970s. Accordingly, it was decommissioned and turned over to local jurisdiction in 1997 and 1998.

Route description

Highway 22 was a 46.0 km (28.6 mi) highway that connected Highway 7 north of Watford with Highway 4 in London; Highway 7 continued west to Sarnia. The route was located within Lambton County, Middlesex County and the city of London.