Autoroute 640 – Current Conditions

Thaw

Thaw period

From March 16, 2026
to May 15, 2026

Thaw period

From April 13, 2026
to May 22, 2026

Thaw period

From April 20, 2026
to May 29, 2026

Laurentides—Lanaudière

Closure R-344 between R-327 and rue Wales, WESTBOUND and EASTBOUND, Saint-André-d'Argenteuil, From June 6, 2026 at 10 a.m. to June 6, 2026 at 10 p.m., detour on local network. Reason : Special events.

June 5, 2026
at 11:25 a.m.

Closure R-309 at height 18e Rue, SOUTHBOUND and NORTHBOUND, Ferme-Neuve, From June 5, 2026 at 4 p.m. to June 7, 2026 at 6 p.m., detour on local network. Reason : Special events.

June 5, 2026
at 11:19 a.m.

Alternating traffic R-343 at height rivière L'Assomption, SOUTHBOUND and NORTHBOUND, Saint-Paul, undetermined period. Reason : Inspection.

April 14, 2026
at 2:49 p.m.

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.

September 23, 2025
at 10:13 a.m.

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. .

June 18, 2025
at 11 a.m.

640

Entre le chemin Principal à Saint-Joseph-du-Lac et le boulevard des Promenades à Deux-Montagnes

Hindrance
Major

Direction
West and east

From May 21, 2026 at 5 a.m.
to July 31, 2026 at 9 p.m.

640

À Saint-Eustache, à la hauteur de la 25e Avenue

Hindrance
Minor

Direction
West and east

From May 30, 2026 at 6 a.m.
to July 31, 2026 at 10 p.m.

640