Tonkin Gap Project and Associated Works

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

Under constructionUnder Construction

Upgrading the highway with additional lanes, new interchanges, bridges and a shared path between Collier Road and Dunreath Drive.

Aerial shot of Tonkin highway - Tonkin Gap Completion

What's Happening 

 Project completion

The wait is over for our stakeholders, commuters and communities in and around the Tonkin Gap Project. And while there will be a little more disruption to go, as the METRONET Morley- Ellenbrook Line is being completed, road users are now experiencing a much quicker and smoother journey.

The additional lanes from Dunreath Drive to Collier Road have been opened and has brought a positive outcome for cyclists as the Principal Shared Path is allowing people to ride from Mandurah to Muchea without crossing a road.

The project, which started construction in November 2020, is now complete including all final asphalt laid and road markings. As usual, there is a period where inspections and closing out defects takes place, with landscaping also ongoing.

Fast-tracked to support WA’s COVID-19 economic recovery, the project included widening Tonkin Highway to provide new lanes in each direction from Dunreath Drive to Collier Road, new bridges over the Swan River, Dunstone Road, Guildford Road, Railway Parade and a new fully grade-separated Principal Shared Path on the western side of Tonkin Highway from north of the Guildford Road interchange to Stanton Road.

Closing the ‘Tonkin gap’ saves up to six minutes during morning peak and up to 11 minutes during afternoon peak for around 120,000 road users who use this section of Tonkin Highway.

 Read the final Project Update Newsletter here and our final Construction update here.

  • For information or questions regarding the Tonkin Gap Project or Malaga footbridge, please call 138 138 (24 hours) or email enquiries@mainroads.wa.gov.au. You can also stay up to date on the Tonkin Gap Facebook page.
  • For information on the METRONET Morley-Ellenbrook Line works please sign up for updates at https://www.metronet.wa.gov.au/ or contact METRONET on 08 9326 3666 (24 hours).
  • If required, we will contact Property Owners directly if there are any further works that will impact your property.

METRONET Morley-Ellenbrook Line
Broun Avenue / Embleton Avenue intersection works

During June, we are completing hoop cutting to install vehicle detection sensors, median concreting and kerbing, brick pacing, property and verge reinstatement, permanent line marking and finishing works.

Once complete, we will open the intersection back up to full capacity and commission the permanent traffic signals.
Roadworks

Tonkin Highway southbound under Broun Avenue bridge

  • 16 to 28 June (except 22 June) 9pm to 4am
  • Lane closures
  • MELconnx - drainage installation

Tonkin Highway northbound between Marshall Rd and Hepburn Avenue

  • 18 June 8pm to 6am
  • Lane closure
  • Removal of temporary barrier at Malaga footbridge

Tonkin Highway northbound between Morley Drive and Reid Highway

  • 18 June 9pm to 5am
  • Lane closures
  • Permanent line marking
  • Weather dependant

Tonkin Highway southbound off-ramp to Reid Highway

  • 18 June 9pm to 5am
  • Lane closures
  • Permanent line marking
  • Weather dependant

Tonkin Highway northbound between Morley Drive and Reid Highway

  • 19 and 20 June 9pm to 5am
  • 26 and 27 June 9pm to 5am
  • Lane closures
  • MELconnx works at Noranda Station
Tonkin Highway northbound between Marshall Road and Hepburn Avenue
  • 19, 20, 21, 24 and 25 June 4am to 1pm
  • Lane closure
  • Barrier works

Railway Parade under Tonkin Highway

  • 19 June 7am to 5pm
  • Stop/slow
  • Lighting works

Tonkin Highway southbound between Morley Drive and Collier Road

  • 19 June and 3 July 8pm to 4am
  • Lane closures
  • Permanent line marking
  • Weather dependant

Tonkin Highway southbound on-ramp from Morley Drive

Tonkin Highway southbound between Reid Highway and Collier Road

  • 22 June 9pm to 4am
  • Mobile works
  • Reinstatement of 100 km/h

Tonkin Highway southbound off-ramp to Great Eastern Highway

Tonkin Highway southbound off-ramp to Guildford Road

  • 24 June 8pm to 2am
  • Lane closure
  • Loop cutting works
  • Weather dependant

Guildford Road under Tonkin Highway

  • 24 June 7pm to 6am
  • Lane closure in both directions
  • Light installation

Tonkin Highway northbound on-ramp from Guildford Road westbound

  • 24 June 8pm to 4am
  • Lane closure
  • Loop cutting works
  • Weather dependant

Tonkin Highway southbound between Hepburn Avenue and Marshall Road

  • 24 to 28 June 7pm to 6am
  • Lane closure
  • Lighting works

Tonkin Highway southbound on-ramp from Hepburn Avenue

  • 24 to 28 June 7pm to 6am
  • Lane closure
  • Lighting works

Tonkin Highway southbound on-ramps from Reid Highway

Tonkin Highway southbound at Reid Highway

  • 25 June 8pm to 4am
  • Lane closures
  • Loop cutting works
  • Weather dependant

Tonkin Highway southbound at Collier Road

  • 25 June 8pm to 4am
  • Lane closures
  • Loop cutting works
  • Weather dependant

Broun / Embleton intersection

  • 25 and 26 June 7pm to 6am
  • Stop/Slow
  • Permanent line marking
  • Weather dependant

Tonkin Highway southbound off-ramp to Guildford Road

  • 26 June 9pm to 4am
  • Ramp closed 
  • Detour map 
  • Concrete and loop cutting works 
  • Weather dependant

Tonkin Highway southbound on-ramps from Great Eastern Highway

  • 26 June 9pm to 4am
  • Ramps closed
  • Detour map
  • Loop cutting works
  • Weather dependant

Tonkin Highway southbound under Stanton Road

  • 26 June 9pm to 4am
  • Lane closure
  • Loop cutting works
  • Weather dependant

Tonkin Highway southbound under Dunreath Drive

  • 26 and 27 June 7pm to 6am
  • Lane closure
  • Brick paving works

Tonkin Highway southbound between Guildford Road and Great Eastern Highway

  • 27 June 8pm to 4am
  • Collector-distributor lane closed
  • Detour map
  • Loop cutting works
  • Weather dependant

Tonkin Highway northbound on-ramp from Morley Drive

  • 28 June 9pm to 12am
  • Ramp closed
  • Detour map
  • Loop cutting works
  • Weather dependant

Tonkin Highway northbound on-ramp from Collier Road

  • 28 June 12am to 5am
  • Ramp closed
  • Detour map
  • Loop cutting works
  • Weather dependant

Tonkin Highway northbound under Broun Avenue

  • 28 June 9pm to 5am
  • Lane closures
  • Finishing works

Tonkin Highway southbound on-ramp from Great Eastern Highway eastbound

Tonkin Highway northbound on-ramp from Collier Road

  • 1, 2 and 4 July 7pm to 6am
  • Ramp closed
  • Detour map
  • Water blasting and permanent line marking
  • Weather dependant

Tonkin Highway northbound between Reid Highway and Hepburn Avenue

  • 1 July 7pm to 6am
  • Lane closures
  • Loop cutting works
  • Weather dependant
See more projects news »
Tonkin Gap bridging the Gap

Tonkin Gap bridging the Gap

The Tonkin Gap Project has taken a major step towards final completion with additional lanes now open between Dunreath Drive and Collier Road.

Tonkin Gap team takes gold for sustainability

Tonkin Gap team takes gold for sustainability

Tonkin Gap Project and Associated Works has recently been awarded a gold Infrastructure Sustainability (IS) design rating under from the Infrastructure Sustainability Council (ISC).

Strollers and cyclists make most of the new underpass!

Strollers and cyclists make most of the new underpass!

Pedestrians and cyclists are enjoying the new underpass built at Great Eastern Highway in Redcliffe.

Project site tours provide learning opportunities

Project site tours provide learning opportunities

The Tonkin Gap Project has presented many learning opportunities for people working in fields related to major transport projects.

See more projects news »
Alleviate

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Reduce

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Improve

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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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