Ontario Highway 108

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Highway 108 shield

Highway 108
Route information
Maintained by the Ministry of Transportation of Ontario
Length: 41.6 km[2] (25.8 mi)
Existed: December 19, 1957[1] – present
Deer Trail
Major junctions
South end:  Highway 17 in Serpent River
North end: Highway 639 north of Elliot Lake
Highway system
Current highways
←  Highway 105   Highway 112  →
Former highways
← Highway 107   Highway 109 →

King's Highway 108, commonly referred to as Highway 108, is a provincially maintained highway in the Canadian province of Ontario. Located in the Algoma District in the remote north of the province, the highway extends for 41.6 kilometres from an intersection with Highway 17 west of Serpent River, through the urban core of Elliot Lake, to an intersection with Quirke Mine Road in the north end of the city. The highway continues as Secondary Highway 639 north of Quirke Mine Road.

A second unrelated Highway 108 existed for approximately a year in Toronto, following The Queensway between Highway 27 and the Queen Elizabeth Way. Like most highways in Toronto, it was transferred to Metropolitan Toronto in 1954. The current Highway 108 was designated in 1957 and has remained more-or-less unchanged since then.

Route description[edit]

Highway 108 is a remote highway in Algoma District that serves to connect the Trans-Canada Highway with the mines in the Elliot Lake and Quirke Lake area. Elliot Lake is the only community on the highway and is located approximately two-thirds of the distance between Highway 17 and Highway 546. The route begins at Highway 17, 6 kilometres (3.7 mi) east of Spragge and 2 kilometres (1.2 mi) west of Serpent River. It proceeds 24 kilometres (15 mi) north through a lake-ridden and remote wilderness before entering the built-up community of Elliot Lake.[3]

Within the urban portion of Elliot Lake, the highway is locally maintained under a Connecting Link agreement.[2] It passes the Nuclear Mining Museum and the Mount Dufour ski resort before leaving the community and crossing the eastern end of the geographic Elliot Lake. From this point to the northern terminus of the highway, the route provides access to several mines that dot the surrounding areas.[3] Immediately south of Quirke Mine Road, Highway 108 becomes Secondary Highway 639; the centre lane ends and the pavement quality is visibly reduced.[4]

Highway 108 forms part of the Deer Trail tourist route, which continues north along Highway 639, then southwest along Highway 546 to Iron Bridge.[5] Like other provincial routes in Ontario, Highway 108 is maintained by the Ministry of Transportation of Ontario. In 2010, traffic surveys conducted by the ministry showed that on average, 2,250 vehicles used the highway daily along the 4.0-kilometre (2.5 mi) section immediately south of the Elliot Lake Connecting Link while 280 vehicles did so each day along the northernmost section approaching Highway 639, the highest and lowest counts along the highway, respectively.[2]

Looking south over Highway 108 as it slices through Elliot Lake


Highway 108 in Algoma is the second highway to carry the designation. In 1953, The Queensway in Toronto was assumed by the Department of Highways as the original Highway 108, between Highway 27 (now Highway 427) and the eastern end of the Queen Elizabeth Way. This designation was short lived, as all the highways within the city limits were transferred to Metropolitan Toronto in 1954.

The current iteration of Highway 108 was assumed by the Department of Highways in sections, beginning in late 1957, shortly after the discovery of uranium deposits in the area. Prior to its assumption, the route it followed was designated as Highway 612. The first section, located in the urbanized area of Elliot Lake, was assumed on December 19, 1957. This was followed on December 30 with the majority of the route being assumed. Finally, on January 23, 1958, the northernmost 15 kilometres (9.3 mi) of Highway 612 was designated as part of Highway 108, eliminating that highway entirely.[1] On January 1, 1998, a 5.8 kilometres (3.6 mi) section of the highway was transferred to the Municipality of Elliot Lake.[6] The route has remained unchanged since then.[3]

Major intersections[edit]

The following table lists the major junctions along Highway 108, as noted by the Ministry of Transportation of Ontario.[2] The entire route is located in Algoma District.[3] 

Location km[2] mi Destinations Notes
The North Shore 0.0 0.0  Highway 17 – Sault Ste. Marie, Sudbury
Elliot Lake 20.7 12.9 Nordic Mine Road Mine access road
24.7 15.3 Esten Drive South Highway 108 ends
30.4 18.9 Timber Road North Highway 108 resumes
37.0 23.0 Stanrock Mine Road Mine access road
40.0 24.9 Denison Mine Road
41.0 25.5 Panel Mine Road
41.6 25.8  Highway 108 continues north as Highway 639
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Route map: Bing / Google

KML is from Wikidata
  1. ^ a b "Appendix 3B - Schedule of Designations of Sections". Annual Report (Report). Department of Highways. March 31, 1958. p. 241. 
  2. ^ a b c d Ministry of Transportation of Ontario (2008). "Annual Average Daily Traffic (AADT) counts". Retrieved February 9, 2012. 
  3. ^ a b c d Mapart (2010). Ontario Back Road Atlas (Map). Peter Heiler Ltd. pp. 88–89. § C6–F7. ISBN 978-1-55198-226-7. 
  4. ^ Google (August 11, 2011). "End of Highway 108 / beginning of Highway 639" (Map). Google Maps. Google. Retrieved August 11, 2011. 
  5. ^ Northern Ontario Heritage Fund Corporation. "Deer Trail Touring Route". Government of Ontario. Retrieved June 20, 2015. 
  6. ^ Highway Transfers List - "Who Does What" (Report). Ministry of Transportation of Ontario. June 20, 2001. p. 16.