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City of Gatineau's Department of Urban Planning and Sustainable Development provides a geospatial dataset mapping high and low current zones along the Ottawa and Gatineau rivers. The data defines floodplains based on a 20-year recurrence interval for high-current zones and a 100-year recurrence interval for low-current zones, supporting zoning by-law 502-2005. The dataset was last updated on the platform in April 2026 and is available in SHP, GEOJSON, and KML formats.
Dataset description was translated using an automated tool (Amazon Translate), which may affect clarity.