Ontario Highway 104 History - The King's Highways of Ontario

King's Highway 104 was a short collector highway linking Grand Valley with Highway 9. It was among the shortest King's Highways ever to exist in Ontario. Highway 104 had a total length of only 2.8 km. The history of Highway 104 dates back to the late 1930s, when the Department of Highways of Ontario (DHO) assumed a new King's Highway in Dufferin County. A Preliminary Route Plan was prepared dated April 16, 1937, which showed the proposed route of a new King's Highway that linked Grand Valley to Highway 9 west of Orangeville. The road was assumed as a King's Highway by the DHO on September 1, 1937, but the route was not called Highway 104 initially. It is believed that this route was originally known as Highway 9A, but this has not been officially confirmed. The route was apparently renumbered as Highway 104 in 1947 (See Map). The highway was paved in 1944, three years before the route number was changed. In 1974, the entire route of Highway 104 was swallowed up when Highway 25 was extended north from Highway 24 to Highway 89. The route was re-designated as Highway 25 in May 1974, which permanently erased the Highway 104 designation from the provincial highway system.