Tertiary Highway 812



Hwy 812 Quick Facts:
  • Status: Became Hwy 502 in 1981
  • Years in Existence: 1976-1981
  • Location: Northwestern Ontario
  • Southern Terminus: Hwy 11 Junction east of Fort Frances
  • Northern Terminus: Hwy 594 Junction west of Dryden
  • Length in 1981: 152 km / 94 miles (Approx)
  • Highest AADT: Unknown
  • Lowest AADT: Unknown


HWY 812
Tertiary Highway 812 Sign
Image courtesy of Jamie Malecki




History of Tertiary Highway 812:



Tertiary Highway 812 was a temporary designation applied to the new highway that was under construction between Fort Frances and Dryden in the 1970s and early 1980s. Construction began on the new highway in 1971 at the Fort Frances end of the proposed route. For the first few years, the new highway did not have a route number, as the designation of Hwy 812 was not assigned to the route until 1976. Construction began at the Dryden end of the highway in 1976, and by 1979, the two construction projects had linked up with one another in the area of Upper Manitou Lake. The new highway was completed, paved, and officially opened to traffic in 1980. The highway was renumbered from Hwy 812 to Hwy 502 in early 1981. Click here to see a route map of Hwy 812, showing historical re-routings and realignments.



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