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Roadwork Information


For any questions regarding the different works, you can contact us at 450 621-3500, ext. 3314.


closure of grande-côte road between montée lesage and roland-durand boulevard

Due to a major aqueduct break on a water main, works require the closure of Grande-Côte Road between Montée Lesage and Roland-Durand Boulevard for an indefinite period.

For everyone's safety, we ask you to respect the detours and signs in place.


work on île bélair - new phase starting november 11

The Ministère des Transports et de la Mobilité durable would like to inform the public that the project to rebuild the Île Bélair bridge (Route 117) in Rosemère will begin a new phase of work on November 11. Construction of the west section of the bridge is now complete, and its lanes will be open to traffic, while the east section will be closed to demolish the old structure and install the new bridge components.


As a result, traffic will be diverted onto the new section of the bridge, lifting the load restriction for 5-tonne vehicles.


The work will continue until summer 2025. Ultimately, the new bridge will feature two traffic lanes in each direction, as well as a multi-use path on the east side connected to the municipal network, to provide users with a safe active transportation link.  


Traffic management

This second phase of work will result in the following traffic disruptions:


February 4, 2025:


Between Thorncliffe and de l'Île-Bélair West, from 9:30 p.m. to 5 a.m.

  • One-way closure, with alternating traffic on one lane.


From November 11 to spring 2025:

  • Closure of the northbound direction of Route 117 (Labelle Blvd.), on the Île Bélair bridge, with traffic diverted onto the opposite carriageway, leaving one lane per direction.
  • Reopening of the pedestrian walkway adjacent to the bridge (west side).
  • The 5-ton load restriction for all vehicles on this bridge is now lifted.


During this period, episodes of congestion are to be expected. The Ministère advises road users who will have to travel in the area to allow extra time to reach their destination.


Please take note that on November 10, between 9:30 p.m. and 5 a.m., there will be a one-way closure on Labelle boulevard, between Thorncliffe and de l'Île-Bélair Ouest.

Traffic will alternate on one lane.


You can also visit Québec511.info at any time to check on the status of the work.


We thank you for respecting the signs in place.


For the safety of road users and workers, please respect the signalization in place.



REPAIR WORK ON HIGHWAY 640 OVERPASSES ABOVE BAS-DE-SAINTE-THÉRÈSE ROAD AND RIVIÈRE AUX CHIENS IN BLAINVILLE AND ROSEMÈRE

The Ministère des Transports et de la Mobilité durable wishes to inform the public that repair work will be carried out on the Highway 640 overpasses above Bas-de-Sainte-Thérèse Road and Rivière aux Chiens, in Blainville and Rosemère.Work will start onAugust 5, 2024 and continue until mid-November 2024.There will be a winter break, and work will continue in 2025 and 2026.

Obstructions and traffic management

Depending on the phasing of the work, the following traffic obstructions will be necessary:

  • Overnight closure of Highway 640, one direction at a time, with contraflow traffic on the opposite carriageway.
  • Overnight closure of Highway 640 entrance and exit ramps at exit 24 Montée Lesage/Bas-de-Sainte-Thérèse Road.
  • Occasional night-time lane closures on Bas-de-Sainte-Thérèse Road, between Langloiserie and Hector-Maisonneuve Streets, with alternating traffic.
  • Speed limit reduced to 80 km/h in Highway 640 construction zone.
  • Speed limit reduced to 30 km/h on Bas-de-Sainte-Thérèse Road.

The multipurpose track on Bas-de-Sainte-Thérèse Road will remain open for the duration of the work. It may, however, be relocated.

The necessary road obstructions to complete this worksite could lead to major traffic congestion in the area.

For the safety of road users and workers, please respect the signalization in place.


WORK ON HIGHWAY 15 BETWEEN HIGHWAY 640 AND 50

The Ministère des Transports et de la Mobilité durable wishes to inform road users that work to build a new left-hand lane on Highway 15 between Highway 640 and 50 will begin on June 6, 2023, and will be spread over a three-year period. This new lane will be reserved for public transit, carpooling and emergency services.

Due to the nature of the work, complete and partial closures of Highway 15 northbound will be necessary throughout the construction period.







What’s happening

  • Honoured Citizen
  • Water meter reading - 2025
  • Slowing down, sharing the road and thinking of others, it feels good!
  • Adoption of the Memorandum
  • Strategic plan