About
This tunnel is located directly under the Beauharnois Canal and allows for the ongoing passage of both road and maritime traffic. It links Beauharnois Downtown sector to Beauharnois West sector.
Traffic
- Two traffic lanes
- Speed limit: 50 km/h
- Trucks: authorized except dangerous substances
- Oversized trucks: license required (more info)
- Scooters: authorized
- Cyclist and pedestrians: authorized on the sidewalk
- Monitoring: Châteauguay Police Department
Technical data
- Total length of the bridge: 227.6 metres
- Total tunnel width: 28.5 m (including the exterior ventilation towers)
- Sidewalk width: 1.7 m (downstream side)
Structure
- The tunnel has a traffic lane in each direction, a sidewalk on the north side and three ventilation shafts; one air exhaust and two air intakes.
- The two traffic lanes are separated by a central support structure that forms the first ventilation shaft (air exhaust).
- The tunnel is made up of 18 caissons that lie directly on the bedrock.
- Outside caisson dimensions:
- Length 12.2 m
- Width 23.8 m
Any questions?
