Ontario Highway 811

Highway 811
Route information
Maintained by Ministry of Transportation of Ontario
Length	59.0 km[1] (36.7 mi)
Existed	1976–present
Major junctions
West end	Highway 527
East end	Weaver River Bridge, near Kashishibog Lake
Location
Country	Canada
Province	Ontario
Counties	Thunder Bay District
Highway system
Ontario provincial highways Current Former 400-series
← Highway 810 → Highway 2
Former provincial highways Highway 812  →

Tertiary Highway 811, commonly referred to as Highway 811, is the longest of Ontario's tertiary highways, and the highest posted route number in the province. The route encounters no named roads along its route, aside from its eastern terminus at Secondary Highway 527. It extends 59 kilometres (37 mi) westward into the wilderness, ending at a bridge over the Weaver River. The route was designated in 1976 with the intention of extending it further west, but this extension has yet to be constructed.