Better flood management sought in WA after extreme weather

Posted 21 March 2017

Flooded streetFollowing deadly flooding in Western Australia last month, a Perth council has commissioned a hydraulic modelling and floodplain management study of the Swan and Helena Rivers. 

The Eastern Metropolitan Regional Council (EMRC) CEO Peter Schneider said the move was timely given the recent rains and flooding that occurred throughout the Swan Valley and further upstream along the banks of the Swan and Avon Rivers.

"Environmental sustainability, particularly improved regional air, water and land quality, regional biodiversity conservation and climate change adaption, is a high priority for the EMRC,” he said. 

“Employing best practice methodology and innovative data visualisation to the flood research will ensure that the research is robust and provides a strong foundation for future decision making.

"This will enable local and state government, planners and the community to understand and take appropriate steps to mitigate flood risk in Perth's eastern region."

Specialist consultancy BMT WBM was appointed to carry out the study, which forms stages two and three of the broader Swan and Helena Rivers Flood Study

A statement from the consultancy said: “Outputs of the modelling will inform the floodplain risk management process, which seeks to identify the nature, scale and extent of the flood risk and identify appropriate measures to manage the flood risk now and into the future.

“The study presents unique challenges due to the combined flood risks from river and ocean flooding in an urban environment.”

The work will complement the stage one hydrologic study recently completed by project partners Hydrology and Risk Consulting (HARC).