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 Sainte-Thérèse, take exit 23 (Saint-Charles Street) NORTHBOUND Exit closed Friday between 10 p.m. and 6 a.m. the following day Saturday between 10 p.m. and 7 a.m. the following day Sunday between 9:30 p.m. and 5 a.m. the following day Detour Exit 31, Charles Street, A-15 SOUTH
• 15 Road reconfiguration In Mirabel, take exit 35 (A-50, R-117) NORTHBOUND Exit closed Friday between 10 p.m. and 6 a.m. the following day Saturday between 10 p.m. and 7 a.m. the following day Detour: Exit 39, R-158, A-15 SOUTH
• 15 Road reconfiguration In Mirabel, between Charles Street and Highway 50 NORTHBOUND Closure of 3 out of 4 lanes Friday between 10 p.m. and 6 a.m. the following day Saturday between 10 p.m. and 7 a.m. the following day
• 15 Road reconfiguration In Blainville, access is from Boulevard de la Seigneurie SOUTHBOUND Access closed Detour A-15 NORTH, exit 28, Notre-Dame Road
• 15 Road reconfiguration In Blainville, at the level of Boulevard de la Seigneurie NORTHBOUND Closure of 2 out of 4 lanes
• 15 Road reconfiguration In Blainville, the exit 25 (Boulevard de la Seigneurie) SOUTHBOUND Exit closed Detour Exit 23, Saint-Charles Street, A-15
• 15 Road reconfiguration In Mirabel, between Highway 50 and Rang Sainte-Marie NORTHBOUND Closure of 2 out of 3 lanes
• 15 Road reconfiguration In Mirabel, access from Highway 50 West to Highway 15 North NORTHBOUND Access closed Detour A-15 SOUTH, exit 31, Charles Street
• 15 Road reconfiguration In Mirabel, access from Highway 50 East to Highway 15 North NORTHBOUND Access closed Detour via Route 117 North and Lachapelle Boulevard
• 15 Manual patching In Saint-Jérôme, between Rue de Martigny and Boulevard Grand-Héron Heading South Closure of 2 out of 3 lanes
• 15 Paving In Sainte-Anne-des-Lacs, access via Montée Sainte-Thérèse for Highway 15 South Access closed Detour via Montée Ste Thérèse, rue Louis Morin, R-117 South

Montérégie

• Closure R-136 between rue de la Montagne and avenue Papineau, EASTBOUND, Montréal, From July 12, 2026 at 8 p.m. to July 12, 2026 at 11:59 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. .
• 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
• 15 Road maintenance In Brossard, on Marie-Victorin Boulevard, access from km 50.5 towards A-15 South SOUTHBOUND Access closed at all times Detour: Service road on Boulevard Marie Victorin, access via Boulevard Matte
• 15 Road maintenance In Brossard, on Marie-Victorin Boulevard, at the intersection with Rhoda Street SOUTHBOUND Boulevard closed at all times A-15 South detour, Exit 46, Marie Victorin Street, access to A-15 North, Exit 50 (Matte Boulevard)

Montréal

• Closure R-136 between rue de la Montagne and avenue Papineau, EASTBOUND, Montréal, From July 12, 2026 at 8 p.m. to July 12, 2026 at 11:59 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. .
• 15 Road resurfacing In Montreal, at the Décarie interchange, access from Marcel-Laurin Boulevard to Highway 15 South SOUTHBOUND Access closed Detour A-15 SOUTH, exit 69, Jockey Street, Décarie Boulevard
• 15 Road resurfacing In Montreal, at the Décarie interchange, access from Highway 15 North to Highway 40 East NORTHBOUND Access closed Detour R-117 NORTH, turnaround to R-117 SOUTH, A-40 WEST and service road, Devonshire Place, A-40 EAST service road Optional route: Exit 69, Décarie Boulevard
• 15 Interview In Montreal, at the Laurentides interchange, towards Highway 40 East SOUTHBOUND Access closed Detour Service Road
• 15 Road resurfacing In Laval, access is from Sainte-Rose Boulevard NORTHBOUND Access closed Detour Light vehicles: R-117 SOUTH or A-15 SOUTH, exit 14-N, R-117 NORTH Heavy vehicles: A-15 SOUTH and exit 20, A-440

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 Installation of new sumps In Laval, access from A15-NORTH to Saint-Martin Boulevard NORTHBOUND Access closed Detour: Service road, Tessier street, Le Corbusier and Saint-Martin boulevards
• 15 Installation of new sumps In Laval, the Saint-Martin East access to Highway 15 South SOUTHBOUND Access closed Detour: Boulevard Corbusier, Tessier Street, A-15
• 15 Installation of new sumps In Laval, the Saint-Martin East access to A-15 North NORTHBOUND Access closed Detour via Le Corbusier and Tessier Boulevards
• 15 Road resurfacing Between Route 117 in Laval and Route 344 in Boisbriand, including the Gédéon-Ouimet Bridge NORTHBOUND Closure of 2 out of 3 lanes