Flooding | Status as of April 19, 2026

General situation

Here is a summary of the key points following the meeting of the Municipal Civil Protection Organisation of the Ville de Vaudreuil-Dorion (OMSC), whose members met late this afternoon.

The Service des travaux publics has completed the installation of pumps to prevent any backflow from the stormwater network. These will be monitored throughout the night. Depending on the forecasts to be issued tomorrow, the City will assess the need to erect flood barriers in certain locations. For the time being, a single flood barrier is in place at the end of Rue de l'Hôtel-de-Ville.

The Service de sécurité incendie is continuing to monitor the situation closely by patrolling areas deemed to be at higher risk.

Two self-service sand stations have been set up (see below for locations).

Closings

• A section of Rue de Breslay, which runs parallel to the A40 motorway, is closed.
• The Esther-Blondin quay is closed to the public.
• The path leading to Maison-Valois Park will be closed from tomorrow morning.

Water levels and forecasts

According to the latest data from the Centre d'expertise hydrique du Québec, the water level of Lake of the Two Mountains is expected to reach:

• 23.94 m today
• 23.99 m tomorrow
• 24.00 m Tuesday

By way of comparison, levels had reached:

• 24.33 m in 2023
• 24.63 m in 2019
• 24.66 m in 2017

For more details, consult the Centre d’expertise hydrique du Québec Web site. 

Members of the public can also view the forecasts for the coming days using the tool Crues Grand Montréal.

Please note that this tool does not take into account flood defences put in place by the City (dikes, flood barriers, etc.). The data comes from water level gauges located on the main waterways of the metropolitan archipelago and is updated in near real time. Forecasts covering a 72-hour period are also issued every six hours. However, these forecasts are subject to a degree of uncertainty and are provided for information purposes only.

Self-service sand stations

In light of the rising water levels, the City is providing self-service sand stations to help residents protect their property.

Sandbag filling stations are now open. Facilities have been set up on site to make filling the sandbags easier.

Important: residents must bring their own spade.

Station locations

Two sites are currently available:

• 190 Avenue Saint-Charles, on the corner of Rue de l'Hôtel-de-Ville, in the Vieux-Dorion area

• Corner of Rue de Breslay and Chemin des Chenaux

These locations were chosen on the basis of their accessibility and the space available, in order to ensure smooth and safe traffic flow.

Preparing for a flood

To find out about best practices and the steps to take, members of the public are invited to visit the Sécurité civile du Québec portal.

Vigilance et communications

La Ville invite les citoyens à demeurer attentifs aux prochaines communications et à suivre l’évolution de la situation sur ses plateformes officielles.

Il est recommandé de s’inscrire à l’Espace citoyen afin de recevoir rapidement toute mise à jour importante (appel, courriel ou texto).

Awareness and communication

As a precaution:

• Check that the submersible pump is working properly and ensure it can run continuously if necessary;
• Ensure that the backflow preventer is in good condition to prevent sewage backflow;
• Clear drains and kerbs around the property to facilitate water drainage;
• Monitor sump pits and basements, particularly during heavy rain;
• Prepare a 72-hour emergency kit.

Should the situation deteriorate:

• Remove valuables and electrical appliances from the basement;
• Store important documents in a secure place;
• See the ‘Emergency Measures’ section for further information. 

For information

The City would like to remind residents that it is monitoring the situation closely and will implement the necessary measures as required.

For further information: call 311 or 450 455-3371, extension 2805 (Monday to Friday, 8.30 am to 4.30 pm).

In an emergency: call 911.

An email address is also available for residents: inondations@ville.vaudreuil-dorion.qc.ca