Ontario Highway 410

Highway 410
Highway 410 highlighted in red
Route information
Maintained by Ministry of Transportation of Ontario
Length	20.3 km[1] (12.6 mi)
History	Planned late-1960s Opened November 15, 1978[2] – November 15, 2009[3]
Major junctions
South end	Highway 401 / Highway 403 – Mississauga
Major intersections	407 ETR – Brampton
North end	Highway 10 (Hurontario Street) – Caledon
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 409 → Highway 412

King's Highway 410, also known as Highway 410 and colloquially as the four-ten, is a 400-series highway in the Canadian province of Ontario that connects Highways 401 and 403 to Brampton. North of Brampton, the commuter freeway ends and the route becomes Highway 10, which continues north through Caledon as a four-lane undivided highway. The route is patrolled by the Ontario Provincial Police and has a speed limit of 100 km/h (62 mph).

Highway 410 was built along the alignment of Heart Lake Road south of Bovaird Drive, while north of Bovaird Drive it was built along a new alignment. The highway was designated in 1978 between Highway 401 and Bovaird Drive (later Highway 7), though it was only two lanes wide and had at-grade intersections. It was widened throughout the 1980s and completed as a freeway in 1991. In 2003, construction began on a northward extension of the freeway that was completed in November 2009 which connected directly to Highway 10. Prior to being downloaded to municipal authorities, Highway 10 had continued further south through Brampton and Mississauga running parallel to Highway 410.