Regulated Flood Zones in Quebec City, Canada

Regulated flood zones are areas of land likely to be flooded, delimited by mapping or flood ratings along the St. Lawrence River. These zones are appended to Quebec City's revised Land Use and Development Plan (SAD) and have been subject to special management standards since March 1, 2022. The data is provided by the Government and Municipalities of Québec under a CC-BY-4.0 license and was last updated on April 22, 2026.

Use Cases

• Assess property development risk based on mapped flood zone boundaries.
• Model floodplain extent for insurance or emergency planning based on the regulated zones.
• Analyze land use policy compliance based on the transitional regime standards for flood zones, banks, and coastlines.

Strengths

• Data is provided in multiple geospatial formats (SHP, GEOJSON, KML, CSV) for flexibility.
• Explicitly states the legal standards (transitional regime) applied since March 1, 2022.
• Published under a permissive CC-BY-4.0 license.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The data provider explicitly states the boundaries are illustrative and require field validation by a surveyor.

Provenance

Source

Government and Municipalities of Québec | Gouvernement et municipalités du Québec

Collection Method

Likely derived from municipal land use planning and mapping efforts.

Time Range

Standards effective from March 1, 2022.

Freshness

Last updated 2026-04-22 19:05:50.853330; freshness should be verified.

Geography

Territory of Quebec City, Canada, specifically areas along the St. Lawrence River.