Our Ten Building Blocks of Flood Management
1. Site Analysis
Assess terrain, elevations, land use, existing drainage and vulnerable infrastructure.
2. Meteorological Analysis
Examine rainfall patterns, return periods, exceedance probabilities, historical extreme events and relevant design rainfall conditions.
3. Watershed Analysis
Understand the wider drainage basin, upstream influences and natural flow paths.
4. Catchment Analysis
Delineate contributing catchments and assess runoff reaching the site and its drainage network.
5. Outfall Analysis
Evaluate discharge routes, receiving drains and waterbodies, including downstream restrictions and backflow potential.
6. Flood Risk Scenario Development
Develop scenarios reflecting rainfall severity, drainage constraints and downstream water levels.
7. Flood Risk Analysis
Assess potential impacts on people, buildings, infrastructure and business operations.
8. Flood Potential Determination
Estimate potential flood extent, depth and duration under the assessed scenarios.
9. Flood Mitigation Measures
Identify suitable measures such as drainage improvements, storage, pumping, flood barriers and backflow prevention.
10. Flood Management Plan
Bring the findings together into an actionable plan covering implementation priorities, operation, maintenance and preparedness.