Ontario Highway 89

King's Highway 89, commonly referred to as Highway 89, is an eastwest provincially maintained highway in the south central portion of the Canadian province of Ontario, stretching 107 kilometres (66 mi) from the junction of Highway 9 and Highway 23 in Harriston in the west, to Highway 400 just east of Cookstown in the east. The principal urban centres along the highway include Alliston, Shelburne and Mount Forest. Outside these towns, the highway travels through rural farmland across a large part of southwestern Ontario.

Highway 89
Route information
Maintained by Ministry of Transportation
Length107.0 km[1] (66.5 mi)
Existed1937–present
Major junctions
West end Highway 9 in Harriston
(continues as  Highway 23London)
Major intersections Highway 6Mount Forest
 Highway 10Shelburne
East end Highway 400 near Cookstown
Location
CountryCanada
ProvinceOntario
CountiesDufferin, Grey, Simcoe, Wellington
TownsAlliston, Cookstown, Harriston, Mount Forest, Shelburne
Highway system
Highway 85 Highway 93
Former provincial highways
  Highway 88 Highway 90  

Highway 89 was established in 1937 as a result of the rerouting of Highway 9 between Orangeville and Highway 27. In 1963, the route was extended west to Palmerston and east to Highway 400. Plans were conceived during the late 1970s to push the highway further east to Highway 12 via Ravenshoe Road, resulting in a brief extension to Highway 11. However, environmental protest over the chosen route through the Holland Marsh resulted in the cancellation of plans in 1986. In 1997, the section between Highway 400 and Highway 11 was decommissioned. The most recent change to the route took place in 2003, when the section of Highway 89 between Palmerston and Harriston was renumbered as part of Highway 23, creating a shared terminus at a junction with Highway 9.


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