Tonkin Highway Extension - Thomas Road to South Western Highway

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Main Roads is extending Tonkin Highway from Thomas Road, Oakford to South Western Highway, south-east of Mundijong, providing improved access to growing residential areas, industry, the airport and the freeway. The preliminary concept includes:

  • approximately 14 kilometres of four lane dual carriageway;
  • construction and/or upgrades of intersections at Thomas Road, Orton Road, Bishop Road, Mundijong Road and South Western Highway;
  • bridges over the existing freight rail line and Perth to Bunbury rail line;
  • a shared path for pedestrians and cyclists along the eastern side of the road corridor, with planned connections to local path networks; and
  • an equine rider and pedestrian underpass under Tonkin Highway at Abernethy Road.

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Main Roads is extending Tonkin Highway from Thomas Road, Oakford to South Western Highway, south-east of Mundijong, providing improved access to growing residential areas, industry, the airport and the freeway. The preliminary concept includes:

  • approximately 14 kilometres of four lane dual carriageway;
  • construction and/or upgrades of intersections at Thomas Road, Orton Road, Bishop Road, Mundijong Road and South Western Highway;
  • bridges over the existing freight rail line and Perth to Bunbury rail line;
  • a shared path for pedestrians and cyclists along the eastern side of the road corridor, with planned connections to local path networks; and
  • an equine rider and pedestrian underpass under Tonkin Highway at Abernethy Road.

If you would like to receive project email updates please subscribe here.

  • CLOSED: This survey has concluded.

    Tonkin Highway Extension - Thomas Road to South Western Highway Survey

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    As planning and development for the project progresses, your responses will help us to understand what’s important to you and why.

    Once we have collated survey responses, we will share this information using the Tonkin Highway Extension – Thomas Road to South Western Highway project email updates. If you would like to receive project email updates please subscribe here.

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