Work Info
Although the Ville de Vaudreuil-Dorion maintains its infrastructure on an ongoing basis, traffic can be impeded by work or events. Every effort is made to reduce the impact on pedestrians, cyclists, residents and motorists.
Here you will find a list of road work projects under way so that you can change your usual route if need be. You'll also be informed about projects coming up in the next few months.
Note that dates are subject to change, as project schedules may be affected by factors such as weather.
If you have any questions about the work in progress, please contact the Service du génie et de l'environnement by e-mail.
Stay informed about upcoming road closures
Subscribe to the Citizen Space to receive notifications about closures due to major construction projects.
Redevelopment work on Route 340 (Boulevard de la Cité-des-Jeunes) — Design of access points to the future hospital
The ministère des Transports et de la Mobilité durable is informing road users that reconstruction work on Route 340 (Boulevard de la Cité-des-Jeunes) will resume on April 15 and continue until the end of November 2026. This project aims to improve access to the future hospital of Vaudreuil-Soulanges.
The work, which will take place in Vaudreuil-Dorion, will involve a new phase of construction, including:
- the construction of two roundabouts east of Highway 30
- the redesign of two intersections near the new hospital
- the construction of a one-kilometer-long dedicated multi-use path that will extend the current multi-use path to the future hospital.
Work will then pause for the winter and resume in the spring of 2027. The entire project will be completed in 2028.
Virtual informational meeting on April 9, 2026, with business owners and property owners located near the construction site
See the presentation for more details.
Road closures and traffic management
Wednesday, April 15 through Saturday, April 18
- Traffic is traveling in the wrong direction on Boulevard de la Gare between Route 340 and Maurice-Richard Street.
From Monday, April 20, through the end of November
- One or two lanes in each direction will be closed on Route 340, between Chemin de la Petite-Rivière and Boulevard de la Gare.
- One lane in each direction will remain open at all times.
From Wednesday, April 22, through mid-May
- Complete closure of the ramp leading from Route 340 to Highway 30 in the westbound direction.
- Complete closure of the right-turn lane leading from Boulevard de la Gare in the southbound direction to Route 340 in the westbound direction.
From mid-May to the end of July
- Route 340 will be completely closed at the intersection with Boulevard de la Gare.
- Access to Boulevard de la Gare heading north and to Route 340 heading west will be available via a detour. - Complete closure of Exit 2 (Saint-Lazare, Boulevard de la Cité-des-Jeunes) on Highway 30 westbound.
- Complete closure of Chemin de la Petite-Rivière (local traffic permitted).
From early August to mid-October
- Route 340 is completely closed at the intersection with Henry-Ford Street.
From mid-October to mid-November
- Temporary closures on various sections of the area to complete the work.
Detour routes will be marked with signage.
Subscribe to the mailing list
Information on the progress of the project will be sent by email to those subscribed to this mailing list: Route 340 – aménagements entre Vaudreuil-Dorion et Saint-Lazare
Are you a neighbor of the future hospital?
Contact the Centre intégré de santé et de services sociaux de la Montérégie-Ouest (CISSSMO) to receive information about the project (special newsletter, invitations to information sessions and discussions with local residents). Send them an email at projet.hvs.cisssmo16@ssss.gouv.qc.ca by writing Neighbor of the future hospital in the subject line of your email.
More details: travaux en lien avec le chantier du futur Hôpital de Vaudreuil-Soulanges.
Route Harwood
Route Harwood
Canadian Pacific Kansas City (CPKC) will begin repair work on the railway bridge starting Tuesday, April 13, resulting in the complete closure of Harwood Road (Route 342) between Petite-Rivière Road and Henry-Ford Street for approximately six weeks.
Only local traffic will be allowed (residents and businesses).
Route Harwood (342) – between montée Daoust and the viaduc de l’A-40
Underground electrical network extension work by Hydro‑Québec will be held until April 17.
During this period, eastbound lanes will be closed to traffic and traffic will flow in one lane in each direction using the westbound lanes. Businesses will remain accessible at all times during the work.
Other major ongoing construction projects
Construction of a new underground reservoir
Construction of the new underground reservoir on boulevard de la Cité-des-Jeunes began in spring 2025, west of route Harwood. This reservoir, with a volume of nearly 6,000 m3, will eventually take over the role played by the water tower in the Dorion sector.
Renovation of Existing Underground Infrastructure
To maintain the City’s water and sewer systems in good condition, water main rehabilitation work is planned on Jeannotte, Duffy, Mackay, Graham, and Brunelle Streets. Reconstruction of water and sewer lines is also planned on Avenue du Curé-David, west of 2nd Avenue. The section of Avenue du Curé-David east of 2nd Avenue will undergo work in 2027.
Redevelopment of Route De Lotbinière
Work on the redevelopment of route De Lotbinière, between Harwood Boulevard and Saint-Jean-Baptiste Avenue was largely completed in the summer of 2025. This project is part of the Harwood PPU – De Lotbinière by contributing to the revitalization of the area and reducing mineralized surfaces. The addition of street lighting, sidewalks, and bike paths on this road will ensure the safety of citizens who use active transportation. Interesting fact: the development of vegetated swales includes more than 790 trees, shrubs, and plants.
Work information meeting
Frequently Asked Questions (in French)
Redevelopment of a part of Rue Chicoine
Another major project showcasing the vision of the Harwood–De Lotbinière PPU began at the end of the summer: the redevelopment of Chicoine Street between De Lotbinière Road and Trudeau Street. The work involves continuing the transformation of the neighborhood by adding bike paths, sidewalks, lighting, and green strips. This project is receiving $2,464,000 in financial assistance from the Active Transportation Fund of Infrastructure Canada.
Île-aux-Tourtes Bridge
For all information relating to the Île-aux-Tourtes bridge, residents are invited to visit the website of the Ministère des Transports et de la Mobilité durable. On this page, you'll find everything you need to know about the project, the obstacles associated with the work in progress, the various mitigation measures put in place, and the progress and highlights of the work to maintain the existing bridge and build the new one.
Traffic obstruction and management
To find out about current restrictions, consult Quebec511.info, a practical tool to help you plan your trips.
If you have any questions or comments, please contact the Ministry using the online form or by calling 511.
Potholes to report?
Notice a pothole or potential hazard? You can report it in several ways:
- Contact the Public Works Department during business hours
- Make a request on the Citizen Space
- Contact 3-1-1 after business hours
