Great Northern Highway

Muchea to Wubin Upgrade Stage 2



In 2014, the Australian and Western Australian governments announced that detailed planning was underway for a $385 million upgrade of the 218 km section of Great Northern Highway between Muchea and Wubin. The highway forms part of the National Highway Network and provides a strategic freight link between Perth and the State’s north as well as Darwin and the Northern Territory.



This project is integral to our Keep WA Moving strategy and will deliver the following objectives:

​Project objectives​Description
​Improve road safety ​Safer route that reduces the risk of death, serious injury and damage
​Increase freight efficiency​Increased efficiency in terms of vehicle loads (mass and size) and reduced delays for all traffic
​Improve network reliability ​Improved reliability with more consistent and predictable travel times and improved network access
​Enhance travel wellbeing ​Improved roadside amenities for rest and driver information
​Contribute to sustainability and viable communities​Balance community concerns against the economic, community safety and network access issues
​Enhance the environment​Undertake practices to help retain and enhance the environmental values of roadsides


Completed works

We have already completed a 21 km section of new highway from Batty Bog to Walebing at a cost of approximately $65 million. We are also nearing completion of the New Norcia Bypass and have started work on 19 km of new highway at Miling Straight.


Project planning review

In conjunction with industry partners Jacobs and Arup, we have also completed a comprehensive planning review of Great Northern Highway and prioritised a series of additional construction packages to be delivered by 2019. To be managed by this Integrated Project Team, these works will significantly improve safety and amenity.

Improvements to be made include town bypasses, wider roads, more passing lanes, flattening crests and easing curves, safer roadsides, more rest stops and additional facilities for heavy vehicles.

This project is jointly funded by the Australian and Western Australian Governments. It will ensure that the highway is able to meet the requirements of all road users and be assessed for use by 53.5 m road trains in the future.

View a map highlighting the location of our proposed work packages.  


Construction packages

The construction packages identified and being developed are:


Study packages


Environmental approvals

The Preliminary Documentation for Muchea North is available for viewing and public comment until 24 August. To download the documents, please go to the Muchea North page.

Public comment period for Walebing to Wubin (2016/7761) closed on 26 June 2017. One public submission was received and a response will be published on this page in due course.

​EPBC 2016/7761 Preliminary DocumentationEPBC 2016/7761 Referral Documentation

Response to Public Submissions on the Preliminary Documentation. 


Further information

Contractors or suppliers interested in providing goods or services for this project should submit a completed Expressions of Interest form.

For general project information please contact the Community Engagement Team:

Phone: 1800 820 366



Modified: 11 Aug 2017