 Highway 89 was created out of a highway rerouting in the late 1930s . Originally , it formed the routing of Highway 9 , which until then turned north at Orangeville , travelling concurrently with Highway 10 , then turning east to Cookstown . On February 10 , 1937 , Highway 9 was rerouted along its present course east of Orangeville . By 1938 , Highway 89 was designated along the former route of Highway 9 . 
