Flood Zone Information Grid for Quebec Municipalities

A standardized grid identifies Quebec sectors with available flood zone information from old-generation maps and ratings. The dataset integrates three sources: territories flooded in 2017 and 2019, the 2017-2019 Special Intervention Zone, and flood zone mapping from MRCs. It is provided for informational purposes only and has no legal value.

Use Cases

• Cross-reference the standardized grid with municipal property records to check for historical flood zone boundaries.
• Analyze the integration of flood zone mapping from MRCs with Provincial Land Use Portrait (PPAT) data for regional planning.
• Map the spatial overlap between territories flooded in 2017 and 2019 and the Special Intervention Zone for risk assessment.

Strengths

• Integrates three authoritative government sources: flooded territories, a Special Intervention Zone, and MRC mapping.
• Data is standardized across sources for consistency in the grid format.
• Provides direct reference to municipal and MRC contacts for verifying on-the-ground flood zone boundaries.

Limitations

• Data is based on old-generation maps and may not reflect current flood risks or updated boundaries.
• The grid has no legal value and is for informational purposes only, limiting its use for official determinations.
• Specific data volume, row count, and column structure are unknown, complicating technical assessment.

Provenance

Source

Government and Municipalities of Québec, integrating data from the Quebec open data portal.

Collection Method

Standardization work performed on data from three specified government information sources.

Time Range

References specific flood events from 2017 and 2019.

Freshness

Last updated March 2026, indicating planned maintenance.

Geography

Covers municipal sectors within Quebec, Canada.