​Roe Highway and Kalamunda Road Interchange

Roe Highway is part of a key road corridor linking Kwinana Freeway to Great Northern Highway, providing access to Kewdale, Hazelmere and Canning Vale industrial areas. Kalamunda Road is one of the last remaining signalised intersections on Roe Highway.

Project update

As part of the environmental assessment process for the project, the Commonwealth Department of the Environment and Energy is currently assessing preliminary documentation provided by Main Roads.

We are working closely with the Commonwealth Government to provide all information required to enable this assessment to be completed in a timely manner.

Concurrently, the procurement process is being finalising, following a competitive tender period in the latter half of 2018. A contract for design and construction of the interchange is likely to be awarded later in the year. 


Main Roads Western Australia proposes to upgrade the intersection of Roe Highway and Kalamunda Road to a grade separated interchange (EPBC 2018/8316). The proposed action occurs within High Wycombe, Western Australia.

Construction will require the clearing of habitat for fauna protected under the Environmental Protection and Biodiversity Act 1999 (EPBC Act).

The proposed action has been determined to be a controlled action under the EPBC Act and will be assessed through Preliminary Documentation. The controlling provision under Part 3 of the Act is listed threatened species and communities (section 18 and 18A).

Documentation related to this proposal was available for community comment between 13 April and 1 May 2019. No comments were received during the community comment period.

In accordance with Section 95B(4) of the EPBC Act and Regulations 16.03 and 16.04 of the EPBC Regulations, Preliminary Documentation related to the proposal is publically available for viewing for a period of no less than 10 business days from 11 May to 24 May 2019 inclusive for information purposes only.

Please refer to the 'Find out more section' to download the Preliminary Documentation.


This project involves construction of a grade-separated intersection at the Roe Highway and Kalamunda Road intersection including a new bridge, two roundabouts and on and off ramps.

Kalamunda Road is likely to flow over Roe Highway. This will minimise noise and visual intrusion for the surrounding residential area.

A shared path is included on the eastern side of the highway and on Kalamunda Road, with local links provided for pedestrians and cyclists.

New drainage, street lighting and other supplementary works will complete the interchange.



 Image: Concept plan


  • Reduce congestion
  • Improve road safety by enabling Roe Highway through-traffic to flow freely
  • Improve access and reduce journey times in Perth’s eastern suburbs
  • More efficient, reliable movement of freight



This project is part of a $2.3 billion package of road and rail infrastructure works, funded by the Australian ($1.6 billion) and State ($750 million) Governments. The State and Federal Governments have allocated $86 million for this project.

Last Updated: 04 June 2019