ARR 2016 Guidelines Have Moved

Geoscience Australia has advised that the ARR 2016 Guidelines have now been officially finalised, providing engineers and consultants with the guidance and datasets necessary to produce more accurate and consistent flood studies and mapping across Australia.

Visit arr.ga.gov.au to learn more about ARR 2016.

The updated guidelines also incorporate new Intensity–Frequency–Duration (IFD) design rainfall estimates developed by the Bureau of Meteorology, using 30 years of additional observations from over 10 000 rainfall gauging stations and improved statistical analysis techniques. These estimates are used by engineers to understand frequency and likely intensity of rainfall to design better dams, stormwater drainage, to improve floodplain management and assist land managers with soil conservation strategies.

The new IFD estimates are available from http://www.bom.gov.au/water/designRainfalls/ifd/.