Australian Rainfall and Runoff (ARR)

Australian Rainfall and Runoff (ARR) is a national guideline document, data and software suite that can be used for the estimation of design flood characteristics in Australia. It is published and supported by the Commonwealth of Australia. Geoscience Australia supports ARR as part of its mandate to provide authoritative, independent information and advice to the Australian Government and other stakeholders to support risk mitigation and community resilience.

ARR is pivotal to the safety and sustainability of Australian infrastructure, communities and the environment. It is an important component in the provision of reliable and robust estimates of flood risk. Consistent use of ARR ensures that development does not occur in high risk areas and that infrastructure is appropriately designed.

How can I keep up to date with ARR updates?

The digital delivery of ARR 2016 allows progressive updates to be made immediately for minor updates and the edition will not be updated. When major updates occur, the year will change in the title.

To keep up to date with ARR updates, subscribe to our eNews or follow Geoscience Australia's Twitter account @GeoscienceAus.