​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Tonkin Highway and Dunreath Drive Interchange​

  • Modifications and upgrades to a busy interchange near Perth Airport
  • Roadworks are complete. Electrical works for signals are expected to be finished by the end of July
  • Reduce queuing on Tonkin Highway exits during peak periods


Modifications to the busy interchange of Tonkin Highway and Dunreath Drive will improve traffic flow and road user safety when entering the busy Perth Airport precinct. 

More than 14,000 vehicles previously exited Dunreath Drive daily, and this number has increased with the opening of the Costco store. 

Work includes: 

  • Removal of the eastern roundabout on Dunreath Drive, within the airport estate 
  • Transforming the exit from Tonkin Highway southbound to Dunreath Drive eastbound into a dedicated turning lane 
  • Installing traffic signals on Dunreath Drive’s western roundabout​ to help manage traffic flow during peak hours


February 2020: Work commences

July 2020: Expected completion




Image: Map


  • ​Eliminate queuing and delays on Tonkin Highway at peak periods 
  • Cater for future development and increased traffic ​


This project is jointly funded by Perth Airport Pty Ltd and Main Roads.

Last Updated: 03 June 2020