Ontario Highway 417

Highway 417
Queensway (within Ottawa)
Highway 417 highlighted in red
Route information
Maintained by Ministry of Transportation of Ontario
Length	192.0 km[1] (119.3 mi)
Existed	1971[2]–present
Major junctions
East end	A-40 (TCH) – Quebec border
Major intersections	Highway 34 – Vankleek Hill  Highway 138 – Casselman  Highway 416 – Ottawa  Highway 7 – Ottawa
West end	Highway 17 / TCH – Arnprior
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 416 → Highway 418

King's Highway 417, commonly referred to as Highway 417 and as the Queensway through Ottawa, is a 400-series highway in the Canadian province of Ontario. It connects Ottawa with Montreal via A-40, and is the backbone of the highway system in the National Capital Region. Within Ottawa, it forms part of the Queensway west from Highway 7 to Ottawa Road 174. Highway 417 extends from the Quebec border, near Hawkesbury, to Arnprior, where it continues westward as Highway 17. Aside from the urban section through Ottawa, Highway 417 passes through farmland that dominates much of the fertile Ottawa Valley.

Within Ottawa, the Queensway was built as part of a grand plan for the city between 1957 and 1966, and later reconstructed to its present form throughout the 1980s. The eastern section, from Gloucester to the Quebec border, opened in 1975 in preparation for the 1976 Montreal Olympics. Sections west of Ottawa have been under construction since the mid-1970s, with the section bypassing Arnprior opening on November 29, 2012 and another 5.3 km stretch in December 2016.