We are passionate about working with all sectors of government, industry and the community to reduce the impact of flooding hazards.  


We deliver robust and fit for purpose flood information to support our flood modelling and flood studies, flood risk management studies, strategy and planning, mitigation infrastructure design, and climate change resilience studies.  

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Flood Management 

Development of flood mitigation studies and strategy reports, following guidance from international and national publications such as Australian Institute for Disaster Resilience (AIDR)

Flood Studies
Flood Studies

Extremes analysis, hydrologic and hydraulic modelling, flood risk assessments for development application, floodplain risk management and emergency plans

Our Technology: JFlow

Flood Economics

Economic appraisal of potential infrastructure benefits, benefit:cost analysis of flood and coastal designs, calculation of damages, present value and economic gains.

Our Technology: FRISM


Fiji, Soasoa Nature-based catchment and drainage study

A project delivered under the Global Climate Change Alliance Plus Scaling up Pacific Adaptation project (GCCA+ SUPA), where we are preparing an integrated watershed management plan for the Soasoa catchment in Fiji.  This project is increasing the resilience of this vulnerable community through better planning and the integration of infrastructure and ecosystem-based adaption.  This moves away from traditional ‘hard’ engineering options, and towards a more balanced approach combining hard and soft (grey or green) methods.

Hong Kong Airport coastal and flood model

A combined coastal and flood modelling project for Hong Kong.  The model used IBTrACS typhoon data to produce design cyclone scenarios.  These were modelled through the Delft3D model spanning the South China Sea, calibrated against long-term recorded water levels near Taikoo Shing, north east of Hong Kong Island.  The model was used to estimate extreme storm surges for 100 and 500-years, which were combined with high detail hydraulic modelling in Tuflow to estimate inundation.

Clarence Valley Council LGA-wide Flood Mapping

Large scale flood mapping throughout the Clarence Valley Council region -  spanning an area over 10,000 km2.  This included catchment delineation, hydrologic assessment and flood modelling at a 5m resolution, between 1 in 20 to 1,500-year return periods.

Etta Plains Flood Study and Hydraulic Assessment

A flood study including hydrologic and hydraulic modelling, applying flood estimation approaches consistent with ARR2019 and hydraulic assessment of proposed development in the far north Queensland.

Australian 30m flood maps

A national assessment of hydrology and flood risk which resulted in Australia-wide flood mapping at a 30m resolution.  Flows were derived at 2km chainage along every watercourse, incorporating new Australian Rainfall and Runoff (2016) rainfall and flow datasets. Maps include 20, 50, 10, 200, 500, 1500-year return periods.

Tweed Upper Coastal Creeks Flood Emergency Planning

Flood risk planning for the Upper Coastal Creek catchments within the Tweed Shire delivered revised flood data for the full range of possible flood events and applying Australian Institute for Disaster Resilience (AIDR) guidance to determine flood evacuation triggers and warnings.

Design event estimation for new telecommunications towers in the Williams River

Estimation of the 1 in 100-year peak flood level, depth and velocity across rural catchments in the Cloncurry Shire, on the Williams River, QLD. The  rural location meant that no gauging stations were located within the site vicinity, and instead extreme conditions had to be estimated using regional Flood Frequency Analysis (FFA) techniques, and 2D hydraulic flood modelling of both flows and rainfall patterns, following Australian Rainfall and Runoff (2016).

Flood Risk Assessment and Coastal Resilience and Climate Change Adaptation Planning, Suriname (JBA and World Bank)

​Development of a coastal resilience and climate change adaption plan for Suriname through World Bank funding, with detailed consideration of the role played by mangroves in coastal stabilization.  Investigation into the costs and benefits of different management approaches (e.g. grey vs green), including job creation, biodiversity, aqua and agriculture. Extensive consultation with ministers, local government, NGO’s, academics and locals.

Taigum Creek flood study, Taigum

An urban flood study and emergency management plan within the Taighum Creek, Brisbane.  The interaction between peak stormwater discharge and the creek water levels was assessed using a linked RORB hydrologic model and a 2D Tuflow hydraulic model. The latter using flow hydrographs and a direct rain-on-grid approach to estimate the flooding patterns throughout the site and surrounding transport network, which was used to plan emergency management procedures. 

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