Road Conditions

Laurentides—Lanaudière

Alternating traffic R-343 at height rivière L'Assomption, SOUTHBOUND and NORTHBOUND, Saint-Paul, undetermined period. Reason : Inspection.
Contraflow traffic rue Baby on the bridge, 1 lane in each direction. Lane width: 3.2 meters, WESTBOUND and EASTBOUND, Joliette, undetermined period. Reason : Inspection.
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. .
15 Road reconfiguration In Boisbriand, between the Gédéon-Ouimet Bridge and A-640 NORTHBOUND Closure of 2 out of 3 lanes
15 Road reconfiguration In Sainte-Thérèse, between Highway 640 and Saint-Charles Street NORTHBOUND Closure of 3 out of 4 lanes
15 Road reconfiguration In Boisbriand, exit 23 (Saint-Charles Street) SOUTHBOUND Exit closed Detour: Exit 20, Du Faubourg Boulevard, A-15 NORTH
15 Road reconfiguration In Mirabel, at the level of Côte Saint-Pierre NORTHBOUND Closure of 3 out of 4 lanes
15 Securing the structure In Sainte-Adèle, at the level of exit 67 (R-117) NORTHBOUND Closure of 1 out of 2 lanes
15 Asphalt Between Chemin du Mont-Gabriel in Sainte-Adèle and Boulevard de la Salette in Saint-Jérôme SOUTHBOUND Highway closed - Monday to Thursday between 7 p.m. and 7 a.m. the following day - Friday between 7 p.m. and 8 a.m. the following day Detour: R-117, A-915

Montérégie

Closure A-20 Saint-Nazaire-d'Acton road stop, WESTBOUND and EASTBOUND, Saint-Nazaire-d'Acton, From June 1, 2026 at 7 a.m. to June 19, 2026 at 6 p.m.. Reason : Roadwork.
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. .
15 Saint-Bernard-de-Lacolle / Champlain
15 Restrictions at the Saint-Bernard-de-Lacolle border crossing in the northbound direction In Saint-Bernard-de-Lacolle The entry point of Saint-Bernard-de-Lacolle Northbound No lane closures Restrictions for non-standard vehicles in size having: more than 5 m high more than 2.6 m wide more than 23 m long Detour via the Lacolle port of entry via R-221, (on the other side of the US port of entry Overton Corners, NY). NOTE: This notice does not apply to road trains with trailers 16.2 m long or less.
15 Redevelopment of the primary inspection line at the border post In Saint-Bernard-de-Lacolle At the Saint-Bernard-de-Lacolle border crossing Northbound Reduction of the number of lanes from 8 to 3 towards Canada

Montréal

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. .
15 Structural repair In Montreal, on the Décarie Expressway, between Sherbrooke Street and Côte-Saint-Luc Road NORTHBOUND Closure of 1 out of 3 lanes
15 Structural repair In Montreal, between Queen Mary Road and Côte-Saint-Luc Road SOUTHBOUND Closure of 2 out of 3 lanes
15 Structural inspection In Montreal, on the Décarie Expressway, between Côte-Sainte-Catherine Road and Vézina Street NOTHBOUND Closure of 2 out of 3 lanes
15 Public services In Montreal, on the Décarie Expressway, between Jean-Talon Street and Côte-Saint-Luc Road SOUTHBOUND Highway closed
15 Securing structures In Mount Royal and Montreal, Décarie Highway, between the Décarie interchange and Jean-Talon Street SOUTHBOUND Highway closed Décarie Boulevard Detour
15 Securing structures In Mount Royal, at the Décarie interchange, access from Marcel-Laurin Boulevard to Highway 15 South SOUTHBOUND Access closed Detour Exit 68, Stinson Street, A-40 WEST, A-520 WEST, A-40 EAST service
15 Securing structures In Mont-Royal, at the Décarie interchange, access from Highway 40 WEST to Highway 15 SOUTH (exit 66) SOUTHBOUND Access closed Detour: A-40 WEST, A-520 WEST, A-40 EAST service road

Laval

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. .
15 Road reconfiguration In Boisbriand, exit 19 (R-344, Chemin de la Grande-Côte) NORTHBOUND Exit closed Detour, Exit 20, Boulevard Du Faubourg, A-15 SOUTH