Québec Flood Marker Locations and Historical Water Levels

Québec's Ministry of Public Security maintains a dataset of physical flood markers. Each marker records the location, date, and maximum water level reached during a significant flood event. The data is provided in multiple geospatial formats including SHP and GeoJSON.

Use Cases

• Map flood marker locations to visualize historical flood extents and water levels across Québec.
• Analyze the relationship between flood event dates and recorded maximum water levels for risk trend assessment.
• Use the location and water level data to calibrate or validate hydrological flood models.
• Cross-reference this dataset with the related 'Water levels during a flood' dataset for enhanced flood risk analysis.

Strengths

• Data is provided in five interoperable formats including SHP, GeoJSON, WFS, CSV, and HTML.
• Produced and maintained by the authoritative Ministry of Public Security of Québec.
• Each marker includes specific attributes for location, flood date, and maximum water level.

Limitations

• The dataset's total row count and specific column names are not provided, limiting initial assessment.
• The provider explicitly states it cannot guarantee the absence of errors in the data.
• Sample data is unavailable for previewing structure and content.

Provenance

Source

Government and Municipalities of Québec (Ministry of Public Security).

Collection Method

Physical markers installed at permanent locations to record maximum flood water levels.

Time Range

null

Freshness

Last updated on 2026-03 25.

Geography

Québec, Canada.