Flood Zone Shake-Up: Major Changes Announced Ahead of October 21 Info Session

Regulatory Framework for Flood Zones: Information Session on October 21 at 6:30 PM at the Legion Hall in Deux-Montagnes
The Montreal Metropolitan Community (CMM) has unveiled the preliminary mapping of new flood zones as part of the Quebec government’s initiative to modernize the regulatory framework for waterway management. This map is currently preliminary, with no legal value, and is subject to change until the final flood zone maps are adopted, which is expected in 2025.
The modernization of this regulatory framework is seen as positive news for municipalities like Deux-Montagnes, which have recently installed protective dikes. The new regulations will officially recognize these dikes, but cities must first prove that their flood protection infrastructure (OPI) is safe and meets the highest standards.
“A new regulatory framework is essential, but it must be adjusted to give us more flexibility in its application and ensure consistency with the realities on the ground. It should allow for the development of at-risk areas with more resilient, adapted infrastructure, while minimizing the impact on the population. Moreover, given the number of buildings situated behind protective infrastructure, it is important for the government to clarify the conditions that will reduce the precautionary zone width to 10 meters and ensure that all areas protected by an OPI are recognized when the regulations come into effect,” emphasized Denis Martin, the mayor of Deux-Montagnes.
Information Session on October 21
Like many cities and municipalities in Quebec, Deux-Montagnes has numerous questions about the modernization of the waterway management framework, particularly regarding the method for determining flood zones. The city recognizes that the release of the preliminary maps may cause concern among residents living in flood-prone areas. To address these concerns, an information session has been scheduled with CMM representatives on October 21 at 6:30 PM at the Legion Hall, located at 141 chemin du Grand-Moulin.