Closures on Highway 40 in Senneville this weekend
Posted October 19, 2026 3:09 pm.
The Ministère des Transports et de la Mobilité durable informs road users that Highway 40 will be completely closed in Senneville during the weekend of Oct. 23.
This obstruction is required in order to transfer traffic to the new slabs of Highway 40 eastbound.
Traffic will be diverted on service roads and the Île-aux-Tourtes Bridge will remain open. Episodes of congestion are to be expected in the area. The Department recommends that the public allow more time to get to their destination.
Traffic obstructions from Oct. 23 to 26
Heading to Montreal
- Complete closure of Highway 40 eastbound between exit 41 (Sainte-Anne-de-Bellevue, boulevard des Anciens-Combattants) and the entrance at Pine Street, from Friday, 11:59 p.m., to Monday, 5 a.m.
Towards Vaudreuil-Dorion
- Complete closure of Highway 40 westbound between exit 41 (Sainte-Anne-de-Bellevue, Boulevard des Anciens-Combattants, Île Perrot) and the entrance on approach to Chemin de Senneville, from Friday, 11:59 p.m., to Monday, 5 a.m.
New track configuration as of Oct. 26
As of Monday, the eastbound lanes of Highway 40 will be rerouted to the new roadway in Senneville.
The Department reiterates to road users the importance of being vigilant and respecting the speed limit in effect.
Work may be postponed due to adverse weather conditions or operational constraints. It is recommended that you consult Québec 511 before travelling.
