Heavy rain predicted – Sainte Anne De Bellevue asking residents to brace for the worst



  • The weather forecast for the next few days predicts significant rainfall in the Ottawa River watersheds. This precipitation will substantially increase water flow in the Ottawa River, which will have a direct impact on the level of Lac des Deux-Montagnes.
  • ​​​​​​​​​​​​​​This situation may increase the level of Lac des Deux-Montagnes to the major flood threshold of and this flood water can be fast and unpredictable.
  • Lac St. Louis is down, but the trend is up for the next few days.
  • It is imperative that all residents whose homes are in the red zone implement ALL necessary measures to protect their homes and / or businesses.
  • We remain in INTERVENTION 1 mode, but it will be adapted as needed in the next few days.



  • Water levels are stable but remain above the mid-level flood threshold by about 300 mm (12 inches).
  • Risk of flooding is very high for citizens on the edge of Lac des Deux-Montagnes.
  • Rue Sainte-Anne, between Saint-Charles and de l’Église, is under surveillance 24 hours a day.



  • Water levels are down, but remain above the minor flood threshold of about 250 mm (10 inches).
  • Risk of flooding is high for citizens on the edge of Lac St-Louis.


  • For the North sector, the situation is stable. We are maintaining a constant watch on the l’Anse-à-l’Orme River, Leslie-Dowker, Meloche and Tremblay ditches as well as the Leslie-Dowker pumping station.



  • Chemin de l’Anse-à-l’Orme, between chemin Senneville and north of Timberlea-Trail, is closed in both directions.
  • Rue Saint-Joachim is closed between Sainte-Anne and Marguerite-Bourgeoys as a preventive measure.


We remind you that if you have not already done so, you can receive 2 pallets of sand for free. Affected owners must make the request by calling 514-457-6666. First come, first served.

The Quebec Ministry of Public Safety offers a compensation program for people who set up at least one temporary preventive measure. Get information on the Ministry’s website.

We are still monitoring the situation every 2 hours to follow the evolution of Lac St. Louis and Lac des Deux-Montagnes water levels. Plus, the Municipal Patrol has a 24/7 resource available.

The emergency flood line is activated. If a situation seems abnormal, please contact the City at 514-457-6666. In case of emergency, please dial 9-1-1.


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