Department of State GrowthRoads for our Future

Midland Highway 10 Year Action Plan

Perth-Breadalbane Duplication

Perth to Breadalbane Duplication

The works

These works provided a four-lane highway from Perth to link in with the existing four-lane Southern Outlet north of the Breadalbane roundabout, and a new underpass arrangement to provide safe access to the highway from Devon Hills. Works also included an upgraded interchange including an underpass for airport traffic and provision for cyclists.

Current status

Completed works

Start of works

December 2015

Completion of works

April 2018

Related news

  • Frog-friendly Highway 21 August 2018
    As part of the Perth to Breadalbane Duplication, the Department of State Growth has been working to protect the vulnerable green and gold frog.
    read more >
  • Moving on for Perth to Breadalbane 31 January 2018

    The completion of the Perth to Breadalbane project is getting closer, with traffic being moved on to the new highway alignment this week.

    read more >
View all news    >

More information

If you would like further information, please contact the Department of State Growth at