Partial closure of eastbound traffic on Highway 40 this weekend

Quebec’s Ministry of Transport and Sustainable Mobility says Highway 40 will be partially closed for eastbound traffic this weekend.

Highway 40 (Metropolitan) will be closed between the Côte-de-Liesse interchange and Highway 15 (des Laurentides) from July 10, Friday 11:30 p.m. to July 13, Monday 5 a.m.

This would include full closure between exit 65 (P.-É.-Trudeau / A-520 / R-117 / Aut. Côte-de-Liesse / Boul. Marcel-Laurin) and the entrance from Highway 15 (des Laurentides) southbound.

Traffic will be diverted onto the Côte-de-Liesse service road.

Drivers are being asked to take an alternative route: Highway 13 (Chomedey) northbound, Highway 440 (Jean-Noël-Lavoie) eastbound, and Highway 15 (des Laurentides) southbound.

A-40 (Metropolitan) EAST – Décarie Interchange Area – July 10–13, 2026 (Courtesy: CNW Group/Ministry of Transportation and Sustainable Mobility)

There will also be other closures that will be in effect from July 10, Friday at 11 p.m. to July 13, Monday at 5 a.m.

  • Entrance to the A-40 (Metropolitan) E from Cavendish Blvd.
  • Ramp from A-520 EAST to A-40 (Metropolitan) E
  • Entrance to the A-40 (Metropolitan) E from Marcel-Laurin Blvd.
  • Ramp from A-40 (Metropolitan) E to A-15 (Décarie) S
  • Ramp from A-15 (Décarie) N to A-40 (Metropolitan) E
  • Entrance to the A-40 (Metropolitan) EAST at Sainte-Croix Avenue
  • Output no 68 (Stinson Street/Rockland Road/De l’Acadie Blvd.) from A-40 (Metropolitan) E
  • Ramp from the A-40 (Metropolitan) EAST to the A-15 (des Laurentides) N;
  • Output no 71 (R-335/St-Laurent Blvd. / St-Denis Street) from A-40 (Metropolitan) E.
A-40 (Metropolitan) EAST – Laurentides Interchange Area – July 10–13, 2026 (Courtesy: CNW Group/Ministry of Transportation and Sustainable Mobility)

The work may be rescheduled or cancelled due to weather conditions.

The ministry warns that high congestion is to be expected and advises motorists to consult Québec 511 before travelling.

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