Today, Infrastructure NSW has released the Hawkesbury-Nepean River March 2021 Flood Review. The Review details the causes, nature and impacts of the March 2021 flood, which was the largest flood in the Hawkesbury-Nepean Valley in 30 years.
The Review summarises the response to, and recovery from, flooding in the valley, and assesses the difference various flood mitigation options would have made to this flood.
The Review was developed in response to the Hawkesbury-Nepean Valley Flood Risk Management Strategy which requires evaluation after any significant flood.
The Review was developed through extensive collaboration between Infrastructure NSW, NSW State Emergency Service, Resilience NSW, Transport for NSW, State Emergency Management Functional Area Coordinators, WaterNSW, the Bureau of Meteorology and expert flood modelling consultants.
The Review is a critical piece of work which will help inform planning for ongoing flood risk management and response.