Ontario Highway 18A

Highway 18A marker
Highway 18A
Highway 18A (in thick blue) as it appeared in the 1938–39 Ontario Road Map
Route information
Auxiliary route of Highway 18
Maintained by Ministry of Transportation of Ontario
Length31.1 km[3] (19.3 mi)
ExistedApril 13, 1938[1]–July 1, 1978[2]
Major junctions
West end Highway 18 in Malden Center
East end Highway 18 in Kingsville
Location
CountryCanada
ProvinceOntario
CountiesEssex
TownsMalden Center, Colechester, Kingsville
Highway system
← Highway 18→ Highway 19

King's Highway 18A, commonly referred to as Highway 18A, was a provincially maintained highway in the Canadian province of Ontario. The 31.1-kilometre-long (19.3 mi) route began and ended at Highway 18, travelling along the Lake Erie shoreline and through Colchester. It was the southernmost highway to ever exist in Canada, as the only one to travel south of the 42nd parallel. Highway 18A was assumed as a provincial highway in 1938. It was transferred to Essex County in 1978, and has since been known as Essex County Road 50.

  1. ^ Cite error: The named reference assumed was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference downloaded was invoked but never defined (see the help page).
  3. ^ Ontario Road Map (Map). Cartography by C.P. Robins. Ontario Department of Highways. 1962. § Mileage Tables.