Onslow Road Upgrade

A major road in the Pilbara region, Onslow Road runs from North West Coastal Highway at Cane, north of the Nanutarra Roadhouse, and heads north-west to the town of Onslow, on the coast.

The Phase 1 upgrade is located approximately 40 kilometres southeast of Onslow.

The project will be privately funded by Chevron Australia Pty Ltd and managed by Main Roads.


Image: Base course material stockpiles prior to blending

Latest news

The Tender process closed on 8 June 2018.

We are currently on site blending the base course material in preparation for the commencement of construction works.

Scope of works

  • Upgraded intersection at Onslow Road and North West Coastal Highway 
  • Structural overlay and resealing 
  • Targeted sub-base and sub-grade improvement 
  • Replacement and extension of existing culverts
  • Upgrading of signage and road markings

During construction, Onslow Road and North West Coastal Highway will remain open. However, road users may experience minor delays as a result of temporary lane closures.


​Key benefits

  • Improved safety
  • Improved traffic efficiency 
  • Reduced maintenance requirements


​Key dates

Anticipated commencement: August 2018

Anticipated completion: January 2019

Last Updated: 12 September 2018