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NorthLink WA

Funding Program:Investment Road and Rail Program
Status:Under construction
Transport Mode:Road
Expected Start/Finish:Mid 2016 - Mid 2019
Estimated Project Cost:$1,024,900,000
Australian Government Contribution:$820,840,000
Local Council/Shire:Shire of Chittering,City of Swan
Corridor:Perth - Darwin

Project Description

NorthLink WA will provide a new transport link between Morley and Muchea, north of Perth. This project combines two adjacent Infrastructure Investment Program projects - the Central and Northern Sections (Swan Valley Bypass) and the Southern Section (Tonkin Highway Grade Separations).

The Central and Northern sections involve the construction of a new 37 kilometre highway from the intersection of the Tonkin and Reid Highways in Malaga to the Great Northern Highway at Muchea. The Central Section will run from the Reid Highway to Ellenbrook, and the Northern Section will continue on from Ellenbrook to Muchea. This new route will replace the Great Northern Highway as the main road freight route through the Swan Valley.

The Southern section involves upgrading Tonkin Highway between Collier Road and Benara Road and construction of a single-point grade-separated interchange at Collier Road; construction of a grade-separated roundabout interchange at Morley Drive; and grade separation of the Benara Road intersection (with no connection to the Tonkin Highway).


NorthLink WA will result in a better flow of traffic in the region, both on and off the new bypass, boosting productivity and creating strong connections, with economic and social benefits. It will reduce travel times and congestion, and provide significant productivity benefits to the economy, industry, motorists and local communities.

In particular, the project will improve Western Australian freight efficiency by introducing an alternative north-south freight route, relieving pressure on the Great Northern Highway through the Swan Valley.

This project will provide a continuous connection from the Perth Airport area to Muchea.


The Australian Government is contributing $682.1 million from the Infrastructure Investment Program and $138.74 million from the GST revenue shortfall in 2014-15 towards the $1.025 billion project.


Construction commenced in June 2016 and is anticipated to be complete by mid-2019.

Disclaimer: The material contained in this site is made available on the understanding that the Department is not thereby engaged in rendering professional advice for a particular purpose. Before relying on the material in any important matter, users should carefully evaluate the accuracy, completeness and relevance of the information for their purposes and should obtain appropriate professional advice relevant to their particular circumstances.

Project details last updated: 23/10/2017