Ontario Highway 400
Toronto, ON to Sudbury, ON
Ontario Highway 400 runs approximately 340 km from its junction with Highway 401 in Toronto north through Barrie and Parry Sound to Sudbury. It is the primary freight corridor between the Greater Toronto Area and northern Ontario, carrying forestry products, mining supplies, and resource equipment. The Barrie area sits in a Georgian Bay snowbelt that can receive intense lake-effect snow squalls with near-zero visibility -- a phenomenon that has caused numerous serious multi-vehicle pile-ups on the 400 north of Barrie.
Length
340 km
340 km
Risk Rating
MODERATE
MODERATE
Risk Factors
Georgian Bay lake-effect snowsqualls (Barrie area)
Near-zero visibility whiteout conditions
Recreational traffic (summer weekends)
Mining/oversize load traffic (northern sections)
Notorious Segments
- Barrie snowbelt (Hwy 400 north of Barrie, ON)
Connected Hubs
Regions
Canada
Eastern Canada
Ontario