History of King's Highway 84:
King's Highway 84 was a short highway which connected Highway 21 at St. Joseph to Highway 4 in Hensall. The highway was 17 km in length and it existed up until the late 1990s, when it was downloaded to Huron County. The history of Highway 84 dates back to the late 1930s, when the Department of Highways of Ontario (DHO) assumed the St. Joseph-Hensall Road as a new King's Highway. A Preliminary Route Plan was prepared in 1937, showing the proposed route of the new provincial highway in Huron County. The route was first assumed by the DHO as King's Highway 84 on April 13, 1938. Originally, the route of Highway 84 was gravel-surfaced for its entire length. The entire highway was paved in 1957. Curiously, Highway 84 was omitted from the 1960 and 1961 editions of the Official Ontario Road Map. The route of Highway 84 changed very little over the years, apart from the transfer of sections of the highway passing through villages. As originally assumed in 1938, the entire highway was under the jurisdiction of the DHO. In 1972, the section of Highway 84 through Zurich was transferred from the province to the Village of Zurich. This section of the route was subsequently designated as a Municipal Connecting Link by an Order-in-Council on March 22, 1972. The Connecting Link through the Village of Zurich was repealed by a Minister's Order on September 16, 1997, following the transfer of Highway 84 from the province to Huron County. The route of Highway 84 through Hensall was transferred from the province to the Village of Hensall, effective February 2, 1984. This section of the route was designated as a Municipal Connecting Link by an Order-in-Council on April 13, 1984. The remainder of Highway 84 remained unchanged until the late 1990s.
In a 1970 Planning Study, the DHO concluded that Highway 84 served primarily a local function and would not be required in the provincial highway system in the long run. The transfer of Highway 84 from the province to the County of Huron ultimately took place on March 31, 1997, when the entire highway was downloaded. The road is now officially known as Huron County Road 84, although the road is still often referred to as "Highway 84" by motorists. Services are available in most communities along the highway. Unless posted otherwise, the speed limit on Highway 84 is 90 km/h (55 mph). Please visit the Highway 84 Mileage Chart page for a list of mileage reference points along Highway 84.
Additional Information About King's Highway 84:
King's Highway 84 - Route Information (At Scott Steeves' website: asphaltplanet.ca)