Brisbane Flood Model Results for 27 Sub-Catchments

27 individual sub-models cover the entire Brisbane City Council area for flood risk analysis. Results include flood height, depth, and hazard data for storm events with recurrence intervals from 2 to 2000 years. The dataset is part of the Citywide Creek and Overland Flow Path Mapping Flood Study managed by Brisbane City Council.

Use Cases

• Map flood height and depth results across the 27 sub-models to identify high-risk zones.
• Calculate flood hazard (depth x velocity) for specific Average Recurrence Interval storm events like the 100-year ARI.
• Compare floodplain condition scenarios for different sub-models to inform land-use policy.
• Integrate sub-model boundary data with location-specific information for detailed flood risk assessment.

Strengths

• Covers the entire Brisbane City Council area through 27 distinct sub-models.
• Provides results for eight defined storm event frequencies, from 2 to 2000-year Average Recurrence Intervals.
• Includes multiple flood metrics: height, depth, and calculated hazard (depth x velocity).

Limitations

• Data format is HTML, which is not structured for direct computational analysis without extraction.
• Core modeling data and results are referenced but not directly provided in a tabular format.
• Understanding requires consulting separate reference reports and metadata, increasing the onboarding effort.

Provenance

Source

Brisbane City Council open data portal.

Collection Method

Technical flood study comprising hydraulic modeling for creek and overland flow paths.

Time Range

null

Freshness

Last updated March 2026.

Geography

Brisbane City Council area, Queensland, Australia.