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. .
• 25 Structural inspection In Terrebonne, on the Mathieu Bridge SOUTHBOUND Closure of 1 out of 3 lanes
• 25 Structural inspection In Mascouche, the exit 28 (Chemin Sainte-Marie) SOUTHBOUND Exit closed Detour Exit 25, A-640 EAST
• 25 Structural inspection In Mascouche, access from Chemin Sainte-Marie NORTHBOUND Avenue de la Gare, A-25 SOUTH, Exit 25, A-640 EAST
• 25 Structural inspection In Mascouche, at the level of the Sainte-Marie Road In both directions Closure of 1 out of 2 lanes

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. .
• 25 Refurbishment of structures Between Longueuil and Montreal, the Louis-Hippolyte-La Fontaine Tunnel In both directions NORTHBOUND tunnel closed, contraflow traffic in the SOUTHBOUND tunnel, at all times Clearance height: 4.3 meters
• 25 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. .

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. .
• 25 Refurbishment of structures Between Longueuil and Montreal, the Louis-Hippolyte-La Fontaine Tunnel In both directions NORTHBOUND tunnel closed, contraflow traffic in the SOUTHBOUND tunnel, at all times Clearance height: 4.3 meters