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EOI’s called for Tonkin Highway extension

EOI’s called for Tonkin Highway extension

An expression of interest has been released for contractors to tender on the Tonkin Highway extension in Western Australia.

The $1 billion project will see the Tonkin Highway extended from Thomas Road to South Western Highway, south-east of Mundijong. This project will help to increase the efficiency and level of access to Perth’s south-eastern corridor.

The surrounding roads will be connected to Tonkin Highway with grade separated interchanges at Thomas Road and Bishop Road, and roundabouts at Orton Road, Mundijong Road and South Western Highway. Underpasses will be provided at Abernethy Road and Shanley Road, and a bridge over Wright Road.

Thomas Road will be duplicated from Kargotich Road to Wungong South Road to address traffic congestion, improve road safety, and cater for the growing population east, north and south of Byford.


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Federal Minister for Infrastructure, Transport, Regional Development and Local Government Catherine King said the project would help to reduce traffic pressure and improve connectivity.

“The project forms part of a package of infrastructure works set to transform the Tonkin Highway corridor, providing a high standard north-south transport link from Muchea down to Mundijong,” King said.

WA Minister for Transport Rita Saffioti said the project represents the largest ever investment that the road corridor has ever seen.

“Extending Tonkin Highway will improve efficiency of truck movements and ensure heavy vehicles are diverted away from growing residential areas like Byford. This will enhance safety and improve the amenity of local communities,” Saffioti said.

“The project will complement the nearby METRONET Byford Rail Extension, METRONET Thomas Road Over Rail, and Thomas Road Safety Improvements between Kwinana Freeway and South Western Highway, to provide communities in our south with greater access to our transport network.”

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