Tertiary Highway 800



Hwy 800 Quick Facts:
  • Status: Became Hwy 527 in 1976
  • Years in Existence: 1963-1976
  • Location: Northwestern Ontario
  • Southern Terminus: Hwy 11 & 17 Jct in Thunder Bay
  • Northern Terminus: Exact northern terminus unknown
  • Length in 1974: 119 km / 74 miles (Approx)
  • Highest AADT: Unknown
  • Lowest AADT: Unknown


HWY 800
Tertiary Highway 800 Sign
Image courtesy of Jamie Malecki




History of Tertiary Highway 800:



This long highway ran from Port Arthur (later Thunder Bay) northerly towards Armstrong. The road began as a forest access road in the 1950s, which was later upgraded to provincial highway standards. The DHO designated the southernmost 71 km of this road as Hwy 800 on July 25, 1963. The road was gradually extended northwards from 1963 to 1967. On January 9, 1964, the DHO designated another 16 km of the road as Hwy 800. On May 6, 1965, another 15 km was designated as well. By 1967, the length of Hwy 800 had grown to 119 km. In 1969, the forestry road leading north from the end of Hwy 800 was finally linked with the Black Sturgeon River Road. This road, which ran from Hurkett to Armstrong, had only opened to traffic a few years earlier. However, it was felt that the link from Armstrong to Thunder Bay would prove to be the more greatly traveled of the two access roads. As a result, paving operations began on Hwy 800 in 1971. By 1972, paving had been completed from Hwy 11 & Hwy 17 to Hicks Lake. The balance of the highway remained as a gravel-surfaced road until 1976, when the entire route of Hwy 800 was redesignated as Hwy 527. Click here to see a route map of Hwy 800, showing historical re-routings and realignments.



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