Cyclonic Wind Design

The Shire of Ashburton is located within one of the most severe cyclonic wind regions in Australia. 

As such, all structures are required to be designed and certified by a practicing certified structural engineer in accordance the Building Code of Australia and Australian Standards. Design wind speeds can be obtained from the Building Code of Australia or the Australian Standards. 

The following map is an extract from the Building Code of Australia which shows the locations of all wind regions within Australia

Wind Regions Australia

The Wind Region for each townsites within the Shire:

  • Tom Price and Paraburdoo are rated as Wind Region A, Terrain Category 2, Climate Zone 3 (but due to the high winds that can be prevalent, applicants are advised to build to Wind Region B)
  • Pannawonica is rated as Wind Region C, Terrain Category 2, Climate Zone 
  • Onslow is rated as Wind Region D, Terrain Category 2, Climate Zone 1