Ontario Highway 107 History - The King's Highways of Ontario

King's Highway 107 was a very short connector highway in the Leamington area which linked Highway 18 to Highway 3 in Ruthven. The route was only 1.5 km in length, making it one of the shortest King's Highways to ever exist in Ontario. Highway 107 shares this honour with the route's previous designation, Highway 18B. The highway was created out of a route renumbering in 1953, when Highway 18B was redesignated as Highway 107. The route existed until 1970, when the highway was formally decommissioned as a King's Highway. On June 1, 1970, Highway 107 was transferred to the County of Essex. Between 1970 and 1997, the former route of Highway 107 was known as Essex County Road 45 (Union Avenue). However, this small portion of Union Avenue was once again designated as a King's Highway for a brief period in 1997-1998. Highway 18 was transferred through Leamington on March 31, 1997. As a result of this highway transfer, Highway 18 was temporarily rerouted along Union Avenue in order to provide a connection to Highway 3 at Ruthven. However, the remainder of Highway 18 was downloaded to Essex County on January 1, 1998, once again reverting the old route of Highway 107 back to municipal jurisdiction. Since 1998, the route of Highway 107 (temporary Highway 18) has been known as Essex County Road 45 (Union Avenue).