What's happening
Temporary on and off-ramps have been constructed at the Mitchell Freeway/Cedric Street interchange to shift traffic off the existing Cedric Street ramps and enable construction of the new Mitchell Freeway/Stephenson Avenue interchange.
To stay informed and receive the latest updates on roadworks, traffic conditions, and access, register for email updates here.
Traffic congestion is anticipated to increase in the area, particularly during peak times, and we advise motorists to allow extra travel time or take an alternative route if possible. We sincerely apologise for any inconvenience caused during this time.
Noise, dust, and vibration may be noticeable to those living or working nearby, as we prepare for construction of the new bridges, freeway on and off-ramps and the shared path. A range of control measures are being put in place to minimise dust and noise disturbance.
Stirling Bus Interchange
The Stirling Bus Interchange, adjoining Stirling Station and the Mitchell Freeway, is undergoing a major upgrade. You can find out more information on the PTA webpage.
These construction works will change how you navigate your way through the car parks and to the station.
We understand these works may add to your journey time and we will regularly review our signage and detour routes to deliver the fastest and safest station entry and exit routes.
The works are being managed by the S2M Evolution Alliance on behalf of Main Roads and the Public Transport Authority. Questions, feedback or concerns regarding the works should be directed to the 24/7 project information line on 138 138 or email enquiries@mainroads.wa.gov.au.
Phase Two
Stephenson Avenue will be extended from Howe Street to Mitchell Freeway and Cedric Street interchange.
Upgrades include:
- Stephenson Avenue grade separated interchange at Mitchell Freeway - Stephenson Avenue bridge over Mitchell Freeway and the Joondalup Line.
- New road connecting Sarich Court to Cedric Street on the west side of the freeway, including a new bridge for Stephenson Avenue.
- New shared path on the east side of Mitchell Freeway from Telford Crescent to Civic Place, including an underpass under Stephenson Avenue.
- New shared paths along Stephenson Avenue and connections to the new path along the freeway.
- Modifications to Mitchell Freeway and Cedric Street interchange, removing the southbound off and on-ramps and northbound off-ramp.
- New access to Stirling Station car park.
- Upgrade Stirling Bus Interchange from an 18-stand to 30-stand facility.
Phase One
Stephenson Avenue was extended from Scarborough Beach Road to Howe Street, including two new signalised intersections. This section was delivered by City of Stirling and opened to traffic on Friday 11 February 2022. Learn more on their website.
The project is part of the City of Stirling’s broader plan to transform the Stirling City Centre – an area bounded by Karrinyup Road, along Cedric Street and Ellen Stirling Boulevard to Scarborough Beach Road.
It will connect key activity hubs, including Westfield Innaloo Shopping Centre, the Osborne Park industrial area and the Stirling City Centre.
We’re working closely with Public Transport Authority for the Stirling Bus Interchange upgrade and Stephenson Avenue works. This will streamline the design and construction process minimising disruption to motorists, bus and rail passengers and the surrounding community.
A comprehensive high level sustainability target framework has been developed to manage our impacts on the local environment. We have considered sustainability topics relevant to the project and the United Nations Sustainability Development Goals (SDGs).
The sustainability targets align with the Infrastructure Sustainability (IS) Ratings Scheme administered by the Infrastructure Sustainability Council (ISC).
Have your Say!
We’ve developed a feedback survey to help us continually improve the way we interact and communicate with people interested in the project. The survey should take no more than five minutes to complete. If you would like to take the survey, visit the Stephenson Avenue Extension Project page on My Say Transport here or click the button below.In August we undertook a community survey to evaluate how effective our communications are in reaching the local audience, our approach to managing construction impacts and how you want to receive information from us. The feedback has been received, find out more by reading the Engagement Summary.
We engage regularly with key stakeholders including the City of Stirling, PTA, Transperth, Traditional Custodians, nearby businesses and local residents, as well as service providers and other government agencies that are involved.
We acknowledge the significance of this area for the Traditional Custodians, and we continue to engage with their representatives. Part of this involves the development of public art concepts. In January we undertook a community survey to gather feedback on our Approach to Public Art. We look forward to sharing the outcome with you very soon as a part of our second round of engagement.
A third community survey will be undertaken to influence landscaping plans.
Project update
- Project Update - August 2023 - PDF (859 KB)
- Project Update - January 2023 - PDF (745 KB)
- Project Update - May 2022 - PDF (1.51 MB)
- Project Update - June 2021 - PDF (819 KB)
Fact sheets
- Consultation Sheet - Jan 23 - PDF (196 KB)
- Noise Walls - PDF (157 KB)
- Construction Impacts - PDF (266 KB)
- Environmental - PDF (129 KB)
Media Statements
- Phase 2 of Stephenson Avenue Extension now underway - 15 March 2022
- Stephenson Avenue Extension Phase 2 contract awarded - 1 November 2021
- Major infrastructure projects developing Stirling into a hub of activity - 11 January 2021
- McGowan Government commits $45 million to Stirling Bus Interchange - 12 December 2020
- Ground breaking milestone on Stephenson Avenue Extension - 20 August 2020
- Local contractor to deliver phase one Stephenson Avenue Extension - 10 June 2020
- Phase one of Stephenson Avenue Extension tender now open - 19 February 2020
- Stephenson Avenue Extension reaches significant milestone - 3 July 2019
- Perth's biggest job-creating road build making huge progress - 3 July 2019
Funding
The State Government has committed $82.5 million and the Australian Government $82.5 million towards the construction of the Stephenson Avenue Extension.
The State Government has also committed $45 million and the Australian Government $45 million towards the construction of the Stirling Bus Interchange.
Final cost estimates and delivery timeframes are subject to further design and finalisation of scope.
traffic flow
connectivity
capacity