Reid Highway Dual Carriageway - Altone Road to West Swan Road

  • Widening Reid Highway to dual carriageway between Altone Road and West Swan Road and construction of the Arthur Street Bridge
  • Construction will begin in mid-2019 and is due for completion by mid-2020
  • Improve safety and ease congestion


This is the last section between Marmion Avenue and Great Northern Highway that is not a dual carriageway. The dual carriageway between Beechboro Road North and Altone Road is now under construction as part of NorthLink WA.

Works include:

  • A four kilometre, two lane second carriageway between Altone Road and West Swan Road (construction to occur on the southern side of the existing carriageway)
  • New shared path and local links on the southern side of the highway
  • Modifications to Reid Highway and West Swan Road intersection
  • A new bridge over Reid Highway, connecting the northern and southern sections of Arthur Street
  • Install bridge beams and deck for a second carriageway across Bennett Brook
  • Extend the underpass to link Victoria Road
  • Noise walls (location and design yet to be determined)
  • Signage, fencing, drainage, landscaping and street lighting

Project Update

Project status update

The project is currently in the detailed design stage, with major construction expected to begin in June 2019.

Underpass closure: seeking your feedback

For safety and efficiency reasons, our construction contractor Decmil is proposing to temporarily close the pedestrian underpass that links Grandis Road, in Dayton, and Arthur Street, in Caversham.

The closure would be in place until mid-2020. It would improve safety by limiting interaction between construction machinery and personnel and cyclists.

We are seeking your feedback on this proposal to help with the planning for this project. If you have any questions, concerns or feedback, please send an email to our project team at by Friday 24 May 2019. Please include your full name and telephone number for future reference.

Stockpiling update

The stockpiles of crushed rockbase at the intersection of Reid Highway and Daviot Road have been sprayed with hydromulch to create a protective seal and mitigate the spread of dust.

This material will be used during the construction process for this project, and in particular for the new bridge connecting the southern side of Arthur Street in Caversham with the northern side of Arthur Street in Dayton.


This $70 million project is jointly funded by the Australian and State Governments as part of a $2.3 billion package of road and rail infrastructure works.



Image: Reid Highway Widening design concept


  • Remove bottleneck and reduce the need for lane merging
  • Improve traffic flow and ease congestion
  • Improve safety
  • More efficient, reliable movement of freight
  • Complement NorthLink WA, by providing an effective connection to Roe Highway
  • Improve cyclists' access to the Swan Valley


Note the following dates are subject to change

13 July 2018: Issue Request for Proposals to shortlisted applicants

March 2019: Contract awarded to Decmil Southern Pty Ltd

Mid-2019: Construction commencement

Mid-2020: Construction completion

Last Updated: 13 May 2019