The Western Australia Tonkin Highway Extension project, which is valued at $1 billion has reached a major milestone by releasing the Expressions of Interest (EOI) to the market.

The project aims to alleviate congestion on local roads in areas like Byford, Cardup, Mundijong, and Oakford, enhancing safety and reducing traffic pressure for the community.

The scope of the project includes:

• 14-kilometre extension of Tonkin Highway from Thomas Road to South Western Highway as a four-lane dual carriageway
• Principal Shared Path (PSP) on the Eastern side of the Tonkin Highway extension for the full 14-kilometre length
  • Connections to Thomas Road, Orton Road, Bishop Road, Mundijong Road and South Western Highway
  • Five underpasses at grade separation locations (Thomas Road and Bishop Road)
  • Footbridge overpass at Orton Road
  • Minor road connections (Copper Road and Adamson Street)
• Grade separated interchange at Bishop Road
• Roundabouts on Tonkin Highway at Orton Road, Mundijong Road and South Western Highway
• Underpasses at Abernethy Road (road, pedestrian, cyclist and equine), Gossage Road (equine only) and Shanley Road (road, pedestrian, cyclist and equine)
• Roundabouts at Hopkinson Road/Abernethy Road, and Shanley Road/Jarrahdale Road/South Western Highway
• Bridges over rail at Bishop Road (as part of interchange) and Wright Road

The Tonkin Highway Extension is jointly funded by the Australian and Western Australian Governments, each contributing $768 million and $315 million respectively. 

Funding has also been allocated for the Thomas Road Upgrade, which includes duplicating the road from Kargotich Road to South Western Highway and delivering the Thomas Road/Tonkin Highway interchange. Safety improvements at the Thomas Road and Kargotich Road roundabout are part of the Thomas Road Safety Improvements project.

The billion-dollar project is expected to support about 2,020 direct and indirect jobs during its construction phase.

Source: Link