FLOOD RISK & STORMWATER MODELLING
Grace GIS provides science-driven flood risk and storm water modelling services that help organisations understand water behaviour, manage risk, and plan resilient infrastructure. Using high-resolution terrain data, hydrological analysis, and GIS-based modelling, we deliver clear, reliable insights to support informed decision-making.

What We Do
• Flood extent and inundation mapping
• Stormwater catchment and subcatchment modelling
• LiDAR-derived terrain and surface modelling
• Overland flow path analysis
• Water velocity and depth estimation
• Urban drainage and stormwater network analysis
• Scenario testing for extreme rainfall events
• Data QA and spatial validation
Deliverables
Clients receive:
• Flood extent and depth mapping
• Catchment and subcatchment GIS layers
• Overland flow path datasets
• Terrain and elevation models
• Thematic maps and spatial analysis outputs
• Metadata and modelling documentation
If you need accurate flood risk or stormwater modelling to support planning, design, or resilience initiatives, Grace Detailed GIS Services can help.
Contact us to discuss your project requirements.