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Highway 48 (Ontario): Wikis


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Ontario 48.png
Highway 48.PNG
Ontario Provincial Highway 48
Markham Road
Maintained by Ministry of Transportation
Length: 65.9 km (41 mi)
Existed: March 24, 1937 – 1998
(From Kingston Road to York Regional Road 73)
(From Highway 12 to Highway 35)
Direction: North/South
North end:  Highway 12 – Beaverton
South end:  York Regional Road 25 (Major Mackenzie Drive)
Counties: York
Major cities: Markham
East Gwillimbury
Brock (Beaverton)
System: Ontario King's Highway
Ontario provincial highways
< Hwy 41 Hwy 49 >
400-series - County

Highway 48 is a provincially-maintained highway in southern Ontario that extends from Major Mackenzie Drive in Markham to Highway 12 south-east of Beaverton, Ontario. Prior to 1998, Highway 48 extended from Highway 401 in Toronto to Highway 35 in Coboconk with a total length of 128 kilometres (80 mi). However, on 1 January 1998 the province transferred the responsibility of maintaining the southern and northern sections to the regional governments that those sections lie within.


Route description

Looking northbound on Highway 48 at the intersection with Old Homestead Road.

Highways 48 is a straight road for most of its length. From York Regional Road 25 (Major Mackenzie Drive) it travels north for 34 km (21 mi) along the 8th concession of York Region (Yonge Street being the 1st) to just south of York Regional Road 32 (Ravenshoe Road). From here, it makes several gentle curves to the east and north for 10 km (6.2 mi), where it veers to the east at York Regional Road 9 (High Street) and follows a former concession road for 14 km (8.7 mi) to Durham Regional Road 23 (Lakeridge Road). East of this junction, it veers north to the boundary between the historic townships of Brock and Thorah, and follows it east to Highway 12. The road is paved in its entirety.


Highway 48 began as an unpaved road on March 24, 1937 at 9.6 km and was paved in 1947. In 1954 it was extended to 82 km to connect to Port Bolster by the Department of Highways (with gravel sections). In 1962, it was extended to the former Highway 46 at Bolsover with a length of 100 km. A business route, 48B, was built through Beaverton (Since renumbered as Durham Regional Road 23) in 1965. The final 28 km from Bolsover to Coboconk was transferred from Highway 46 in 1975.

The Toronto section (from Highway 401 to Steeles Avenue) is now known as Markham Road. The York Region section (from Steeles Avenue to York Regional Road 73) was renamed York Regional Road 68. By 2009, the section between York Regional Road 73 to York Regional Road 25 was downloaded to the town of Markham. Once the northern section of the Donald Cousens Parkway is constructed between York Regional Road 25 to Highway 48, it is expected that Highway 48 will be decommissioned between York RR 25 and the DCP, thus making Highway 48/York RR 48 a continuous route.

The Kawartha Lakes section (from Highway 12 to Highway 35) is now known as Kawartha Lakes Road 48 (Portage Road) and Durham Regional Highway 48.

Highway 48's concurrent section with Highway 12 prior to 1998 is designated as a Trans-Canada Highway route.


  • Spring Lakes Golf and Country Club
  • Maple of Ballantrae Golf Club
  • Ballantrae Golf and Country Club
  • Lyndhurst Golf Course
  • Pines of Georgina Golf Club
  • Gamebridge Lock 41 National Park
  • Mitchell Lake
  • Balsam Lake Provincial Park

See also


External links



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