Tonkin Gap Project and Associated Works

Tonkin Highway – Collier Road to Dunreath Drive, including Guildford Road interchange

To improve traffic flow and reduce travel times, we are upgrading the highway by adding additional lanes, new interchanges, bridges and a shared path. Construction is due to start in October 2020.
Tonkin highway over the river


We are transforming Tonkin Highway to deliver a high standard, north-south transport link from Muchea to Mundijong. 

The Tonkin Gap Project will address the current bottleneck where the highway reduces from three lanes to two lanes in Bayswater and Redcliffe, significantly reducing travel times and improving safety. We will also be making improvements to access and connectivity for road users, pedestrians and cyclists in the project area. 

The preliminary concept includes: 

  • Widening Tonkin Highway to provide new lanes in each direction from Dunreath Drive to Collier Road, as well as new roads linking Guildford Road and Great Eastern Highway 
  • New bridges over the Swan River, Dunstone Road, Guildford Road, Railway Parade 
  • New fully grade-separated Principal Shared Path (PSP) on the western side of Tonkin Highway from north of Guildford Road interchange to approximately Stanton Road with local connections 
  • Noise walls  
  • Upgraded lighting and intelligent transport systems (ITS) infrastructure 

Rail enabling works will also be undertaken to support delivery of the METRONET Morley-Ellenbrook Line  on behalf of the Public Transport Authority. These works will help reduce impacts on Tonkin Highway when the main railway construction begins.​ 

Alleviate pressure on the transport network

Reduce travel times

Improve safety and connectivity

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Project updates

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Come and chat to the community and design teams

 Thursday 13 August, 9am to 5.30pm: Belmont Forum, across from Big W 

 Saturday 15 August, 10am to 6pm: DFO Perth, across from Jim Kidd Sports

Project Map

Tonkin Gap - Map.jpg
Click to view PDF version

Acknowledgement of country

The Government of Western Australia acknowledges the traditional custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders both past and present.

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