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Road Conditions
Laurentides—Lanaudière
Closure R-131 between rue Saint-Michel and rue Guy-Gauthier, SOUTHBOUND and NORTHBOUND, Saint-Michel-des-Saints, From August 30, 2025 at 9 a.m. to August 30, 2025 at 6 p.m., detour on local network. Reason : Special events.
Louis-Hippolyte-La Fontaine tunnel
Height clearance reduced to 4.3 meters since May 5, 2025. Recreational vehicles, among others, make sure to respect the height clearance before including the tunnel in your itinerary. .
640
Work: structural repairs above rue Saint-Eustache In Deux-Montagnes and Saint-Eustache, between km 9 and 11 In both directions, traffic on diverted lanes WESTBOUND Closure of 1 lane out of 2, plus 1 contraflow lane on the EAST carriageway Track width WESTBOUND: 4.5 meters and 3,5 meters in the opposite direction (lane prohibited for trucks) EASTBOUND: 2 lanes of 3.3 meters
640
Works: overpass repair In Saint-Eustache, at 25th Avenue Traffic on narrowed and diverted lanes at all times Track width: 3.4 m
640
Works: redevelopment of structures, Ruisseau de Feu In Terrebonne Access from Boulevard Marcel-Therrien and Montée des Pionniers towards A-640 EAST Complete closure at all times Detour: temporary ramp
640
Works: redevelopment of structures, Ruisseau de Feu In Terrebonne (Lachenaie) Access from Montée des Pionniers towards A-640 WEST Closed at all times Detour: via Chemin des Quarante-Arpents
640
Works: redevelopment of structures, Ruisseau de Feu In Terrebonne (Lachenaie district) In both directions At exit 50 (Montée des Pionniers) Closure of shoulders and traffic on diverted lanes at all times
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