bypass opened, routing Highway 12 to the east. Portions of the former route of Highway 12 were renumbered as Highway 48B. The highway again remained unchanged for several decades, until a short portion of the southern end of the highway was decommissioned in the late 1990s. On April 1, 1997, the portions of Highway 12 south of Brooklin were transferred to municipal government. From Brooklin to , the Regional Municipality of Durham has subsequently redesignated the road as . Prior to the highway downloadings of 1997 and 1998, Highway 12 was also not routed concurrently along Highway 400 between Coldwater and Waubaushene, but instead ran as a single roadway, parallel to, and crossing, the 400. The bypassed section was redesignated as Simcoe County Road 16. That section was signed as "TO 12" until 2016, when Highway 12 was officially rerouted along Vasey Road and onto a concurrency with Highway 400. Major intersections References External links Canada NewsWire Press Release Highway 12 Photos 012 Ontario 012 Highway 12 Highway 12 Transport in Orillia Transport in Whitby, Ontario