The Kwinana Freeway Upgrade is a set or proposed upgrades to the existing Kwinana Freeway, 25 kilometres south of Perth. The scope of the project includes delivery of:
- A new 11-kilometre lane in each direction between Russell Road and Mortimer Road
- A new 2.5-kilometre southbound lane between Roe Highway and Berrigan Drive
- A new 3.3-kilometre northbound lane from Russell Road to Beeliar Drive
- New coordinated ramp signals, and
- Improvements to safety barriers, surfacing and drainage.
The project will support the construction and operation of the proposed Westport Facility in the Kwinana Harbour.
Key Dates
| Jun 2025 | Project Announcement |
| Oct 2025 | EOIs Open |
| Nov 2025 | EOIs Close |
| 2026 | Preferred Bidder Selection |
| 2027 | Expected Construction Commencement |
Funding contributions
| Federal Government | |
| WA Government | |
|
The WA and Federal Governments are funding the project on a 50:50 basis. The 2025-26 WA Budget confirmed $700 million in funding for the project. The 2026-27 WA Budget allocated the funding in full, comprising $208 million in FY2026-27 and $240 million in each of FY2027-28 and FY2028-29. |
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Procurement
| Procuring Agency: | MainRoads WA |
| Shortlist: | BMD, Georgiou Group, GHD and WSP; CPB, McConnell Dowell, Arup and Jacobs Group; and NRW Contracting, DT Infrastructure, Aurecon and BG&E. |
| Successful Tenderer: | CPB, McConnell Dowell, Arup and Jacobs |
PROJECT HISTORY
| Nov 2024 | The project was outlined in the Westport Business Case as key enabling infrastructure required for the delivery of the Westport project. |
| Mar 2025 | The project was included in the Federation Funding Agreement Schedule on Land Transport Infrastructure Projects (FFAS) between the Federal and WA Governments, contingent on a Business Case evaluation by Infrastructure Australia. |
| Jun 2025 | The 2025-26 Western Australian Budget confirmed funding for the project as an election committment. The Budget confirmed a total estimated cost of $700 million, with funding to be allocated from FY2026-27 onwards. |
| Oct 2025 | The WA Government commenced an Expression of Interest process for the project, to be delivered under an Alliance Contract. |
| Mar 2026 | The WA Government issued a Request for Proposal to a shortlist of three Alliances to deliver the project. Shortlisted proponents include BMD, Georgiou Group, GHD and WSP; CPB, McConnell Dowell, Arup and Jacobs Group; and NRW Contracting, DT Infrastructure, Aurecon and BG&E. A preferred proponent to enter into a Project Alliance Agreement is expected to be selected mid-2026. |
| Jul 2026 | The WA Government appointed CPB, McConnell Dowell, Arup and Jacobs Group as the preferred consortium to deliver the project. |
Estimated Total Cost
(2025)
Sector
Road
Procurement approach
Traditional Procurement |
Location
Western Australia |
Resources
