Tonkin Gap Alliance has started the design work on the A$400m ($280m) Tonkin Highway Corridor, the road and rail project.

The alliance, which includes Georgiou Group, BMD and WA Limestone, along with designers BG&E and GHD will deliver the detailed design and infrastructure works to remove bottlenecks such as improving traffic flows, travel times and road safety on Tonkin Highway between Morley and Redcliffe.

A combined staff of 90 will work with Main Roads Western Australia to complete design work to design the work on the Tonkin Highway Corridor.

Tonkin Gap project’s scope of work includes the upgradation of the section between Collier Road and Dunreath Drive to a three-lane, freeway-standard road to reduce travel times.

It has also been given the responsibility to perform rail-enabling works for the METRONET Morley-Ellenbrook Line, including modifications to Tonkin Highway between Railway Parade and Hepburn Avenue, along with the replacement of the existing Broun Avenue flyover.

Two dive structures will also be built at Bayswater and Malaga to enable the rail line to enter and exit the middle of Tonkin Highway.

GHD Western Australia transport market leader Erik Geidans said: “GHD’s approach is integrated and collaborative to ensure innovative and cost-effective infrastructure delivery systems. This project has multiple touch points that excite us, including the opportunity to design a new multi-span bridge structure over the Swan River.

“We are also looking forward to deepening ties with local contractors within the alliance to scale innovation and fast-track outcomes.”

The project is part of A$2.37bn ($1.5bn) pipeline of major road projects, which could create up to 13,000 jobs.

GHD Western Australia operations manager Alex Piper said: “We are thrilled to continue our positive relationship with clients like Main Roads to deliver projects that collectively make the world a better place to live.”

“This is a great opportunity for our Western Australian teams to collaborate and deliver a significant project for the community in a time when the economy needs it most.”

The construction work on the project is expected to begin in September this year and is scheduled for completion in 2023.


Design work on Tonkin Highway begins in Australia. (Credit:GHD.)