For sections of provincial highways that have been decommissioned, see List of former Ontario provincial highways.
Provincial Highway Network
Highway markers for King's Highway17, King's Highway401, Secondary Highway600, and Tertiary Highway 800
System information
Maintained by the Ministry of Transportation of Ontario
Length
17,459 km[2] (10,849 mi)
Formed
February 26, 1920 (1920-02-26)[1]
Highway names
Types
King's Highway n (2–169)
Secondary Highway n (500–673)
Tertiary Highway n (800–813)
System links
Ontario provincial highways
Current
Former
400-series
Provincial highways in Ontario include all roads maintained by the Ministry of Transportation as part of the Ontario Provincial Highway Network.
^Shragge, John; Bagnato, Sharon (1984). From Footpaths to Freeways. Toronto: Ontario Ministry of Transportation and Communications, Historical Committee. pp. 74–75. ISBN 978-0-7743-9388-1.
^Cite error: The named reference km was invoked but never defined (see the help page).
and 29 Related for: List of Ontario provincial highways information
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