Flood markers

The Ministry of Public Security (MSP) supports the development of knowledge of flood risks. Flood markers make it possible to illustrate the water level reached during a very major flood and thus to raise public awareness of the risks associated with it while maintaining this awareness of risk in the collective memory.

What is a flood marker?

A flood marker is a physical mark (15 cm in diameter for the standard) testifying to the maximum level reached by a watercourse during a very significant flood on a given date. The flood marker is usually located at a permanent location and is easily visible to everyone, for example on the wall of a building or on a dedicated pole.

Point dataset “Flood markers”

The “Flood reference” data set contains, for each marker, the location, the date of the reference flood and the maximum water level reached. The list of all attributes is provided in the dataset description sheet (Additional Information section).

Despite the quality of the work carried out, the Ministry of Public Security cannot guarantee the absence of errors in the data.

Related datasets

The “Water levels during a flood” dataset produced by the Ministry of Public Security also contains maximum water levels reached during a flood. The link to this dataset is provided in the Documentation section.This third party metadata element was translated using an automated translation tool (Amazon Translate).

Données et ressources

Info additionnelle

Champ Valeur
Dernière modification avril 17, 2026, 21:41 (TU)
Créé le avril 17, 2026, 21:41 (TU)
contact_email GeoExpertiseMSP@msp.gouv.qc.ca
contact_person {"en": "Government and Municipalities of Québec; Government and Municipalities of Québec; Ministère de la Sécurité publique", "fr": "Gouvernement et municipalités du Québec; Gouvernement et municipalités du Québec; Ministère de la Sécurité publique"}
criticality_level []
data_dictionary EPSG:32198,EPSG,unknown
geographic_scope []
open_canada_collection fgp
open_canada_date_published 2024-11-19 00:00:00
open_canada_keywords {"en-t-fr": ["Decrue", "Abandoned by the flood", "Water", "Flood", "Level", "Maximum level", "Civil security", "Government information"], "fr": ["Décrue", "Délaissé de crue", "Eau", "Inondation", "Niveau", "Niveau maximum", "Sécurité civile", "Information gouvernementale"]}
open_canada_subject ["form_descriptors", "nature_and_environment", "science_and_technology"]
sensitivity_level unrestricted
title_fr Repères de crue
update_frequency as_needed