Mitchell Freeway Southbound Widening

Cedric Street to Vincent Street

  • Widening the freeway
  • Construction has kicked off and is expected to be completed at the end of the year.
  • Improve congestion through the area, particularly in morning peak.


Works form part of our overall plan to transform Perth’s freeways to accommodate population and economic growth into the future.

  • Build an additional 7 km lane on Mitchell Freeway southbound from Cedric Street to Vincent Street
  • Complete the missing shared path link from Glendalough Station to Hutton Street
  • Improve median barriers between the railway line and traffic lanes with existing barriers being replaced with concrete barriers
  • Provision of noise and screen walls where required

Project update

Karrinyup Road on-ramp at Mitchell Freeway southbound

Noise walls are being installed at selected locations to reduce traffic noise and provide privacy screening for local residents. For the safety of road users and construction workers, and to avoid major disruption of high-volume daytime traffic on the freeway, a proportion of these works will be completed after-hours.

Construction Update - May 2019

For several months, key activities along the freeway verge have included service relocations, bulk earthworks, construction of access roads, light pole installations, pavement and drainage works. The latest Construction Update includes photographs and more information about the works along the freeway verge, median side of the freeway, and Hutton Street ramps.


  • Mitchell Freeway southbound entry from Hutton Street
    • Closed on 25 June from 8pm to 4am
    • From 4am 26 June to October, access to the freeway southbound from Hutton Street will be via a temporary on-ramp. Hector Street and McDonald Street access to the freeway will be closed
    • Please allow extra travel time as delays are expected on Hutton Street, Main Street and Royal Street
    • Roadworks update
  • Mitchell Freeway southbound entry from Karrinyup Road
    • Lane closure and speed reductions from 14 May to 30 June, 10am to 7pm (week days only)
    • Roadworks update

Visit our Travel Map for all traffic and travel information that may impact your trip.

Environment and community

We are committed to ensure early and ongoing communication is undertaken throughout the project to ensure you stay up-to-date. As the project develops from concept to detail design, more information will be available for our stakeholders.

While there will be some impacts during construction, we will plan to minimise disruption and inconvenience to road users and nearby residents as much as possible.

We invite you to complete a short online survey to provide feedback on how the project has been communicated.

A Community Reference Group has been formed to:

  • Assist in identifying, discussing and providing advice on the community issues associated with the project
  • Exchange information between us, the contractor and the community
  • Provide representative community and stakeholder input into the construction phase of the project

The fourth meeting was held in April 2019.


  • July 2017: Issue Expressions of Interest
  • October 2017: Issue Request for Proposals to shortlisted applicants
  • June 2018: Contract award
  • Mid-2018 to end-2019: Construction




Image: Mitchell Freeway southbound widening map from our project update


  • Provide capacity for additional vehicles on the freeway 
  • Improve traffic flow and journey times for road users, particularly during their morning commute
  • Improve safety by reducing stop/start conditions from lane merging
  • Create four continuous freeway lanes from Erindale Road to Vincent Street


​As part of a $2.3 billion investment in road and rail infrastructure, the State and Australian governments have committed $40 million.

Find out more

Project Update

Project Update - April 2019

Project Update - May 2018

Project Update - August 2017

Construction Update

Construction update - May 2019

Construction Update - Noise and screen walls

Construction Update - April 2019

Construction Update - January 2019

Construction Update - October 2018

Fact Sheet - May 2017

CRG Minutes

Information sheets

Media statements

Overhaul of Mitchell and Kwinana Freeways begins - 14 October 2018

Tenderers shortlisted to deliver a free flowing Mitchell Freeway - 30 October 2017

Last Updated: 24 June 2019