Montreal Saint-Laurent Boulevard overpass to remain open this weekend, Route 136 still planned to close
Posted February 24, 2025 6:18 pm.
Last Updated February 25, 2025 7:25 pm.
Montreal’s Route 136 will be closed in both directions during the weekend of Feb. 28 as part of a reconstruction plan of the Saint-Urbain Street overpass, according to Transport Quebec.
The closure of the Saint-Laurent Boulevard overpass above Route 136, initially scheduled for Saturday and Sunday, has been postponed to a later date.

Traffic obstructions and management – Route 136:
- Complete closure of Route 136 westbound, between Panet Street and the entrance from Lucien-L’Allier Street from Friday, February 28, at 11 p.m., until Monday, March 3, at 5 a.m.
- Traffic will be diverted onto Viger Ave. and Saint-Antoine Street.
- Complete closure of Route 136 eastbound, between exit no. 4 − Victoria Bridge / R.-Bourassa Boulv./ de la Montagne Street and the entrance from Atateken Rd. from Friday, February 28, at 11:30 p.m., until Monday, March 3, at 5 a.m.
- Traffic will be diverted onto Saint-Jacques and Saint-Antoine streets.
- Access ramps will be closed 30 to 60 minutes before the complete closure of Route 136.
- Detour routes will be marked with signage, with police presence planned to facilitate traffic.
Traffic obstructions and management – Saint-Laurent Boulv. overpass:
- CANCELLED: Closure of the Saint-Laurent Boulevard overpass between Viger Avenue and Saint-Antoine Street from Saturday, March 1 at 10 p.m., until Sunday, March 2, at 10 a.m.
- Traffic will be diverted to:
- Saint-Antoine and Saint-Hubert streets heading north;
- Viger Ave. and De Bleury Street (near Place Jean-Paul-Riopelle) heading south.
- Pedestrians and cyclists will be able to use the bridge during the closure.
- Traffic will be diverted to:
Transport Quebec said that more road work may be postponed in a situation of adverse weather conditions or operational constraints, and are recommending drivers consult Quebec 511 before planning trips.