Flood Hazards

We are passionate about delivering better ways of managing the risk associated with flooding now and in the future

Flood hazards

We deliver national-scale to catchment-specific flood studies, hydrological studies, hydrologist reports, hydraulic studies, flood risk management plans, forecasting and early warning systems, bridge assessments, scour assessments, development assessments, stormwater management plans, water quality management, and catchment management plans.


Research & innovation

Innovation is at the heart of all we do. We invest strongly in research and development, responding to the needs of clients to provide bespoke innovative solutions and incorporating the latest technical knowledge through collaboration with industry, academia and government


JFlow is our own super-fast two-dimensional hydrodynamic model.  It is also our most succesful international product. Run on the world's largest dedicated flood modelling computer grid, we use JFlow for national-scale flood and hazard mapping. In 2006, the JBA Group made a breakthrough by pioneering the use of GPU (graphics processing unit) technology to improve the speed and efficiency of the JFlow model. By 2007, JFlow could be run up to a thousand times faster than before, leading to a step change in the scale of lood modelling.

National maps

Examples of
our work

Here are just some examples of our work in flood hazard assessments


Our projects:
flood hazards

Fiji Flood Risk Review for renewable hydrogen power

An island-wide flood risk assessment targeting seven potential sites for … Continued

Fiji, Soasoa Integrated Catchment Management Plan, SPC

A project delivered under the Global Climate Change Alliance Plus … Continued

Broadwater Creek Weir Removal, NSW

This project predicted changes to waterway hydrodynamics, salinity and bed … Continued

Northern NSW 5m flood mapping

Large-scale flood modelling and mapping now at 5m resolution for … Continued