Karratha to Tom Price Corridor Upgrade - Stages Three and Four

Under Delivery
Karratha to Tom Price Corridor Upgrade - Stages Three and Four

The Karratha to Tom Price Corridor project aims to provide targeted road upgrades to improve road quality and safety, to better connect regional communities, and to reduce the amount of road closures during wet weather. The corridor is a key economic freight route that supports the mining industry.

Stages Three and Four provide targeted upgrades to the Karratha to Tom Price Corridor. These include: 

  • Stage Three: Involves constructing and sealing the 48-kilometre section between the Rio Tinto rail alignment and the rail crossing (complete in September 2020
  • Stage 4: Involves a 110-kilometre section from the Rio Tinto rail crossing to Nanutarra-Munjina Road (currently under planning and development, and expected completion mid-2026).

An Alliance contract is planned for the delivery of Stage 4. 

The overall upgrades to the corridor also include Stages One and Two, not included in the scope of this page.

Stage One was complete in December 2003 and Stage Two was complete in July 2008 - however, after receiving additional funding for pavement rehabilitation and widening works, it has reopened and works are currently underway, with works expected to be complete by late 2023.. Stage Two's additional funding took the price of all the stages (1-4) to $380 million. 


Key Dates

Sep 2019 Construction Commencement
2026 Expected Construction Completion

Funding contributions

Federal Government
WA Government


Successful Tenderer: Stage Three: MACA Civil Pty Ltd


Nov 2023 The Federal Government allocated an additional $11 million to the project from the IIP Independent Review.
Estimated Total Cost
Procurement approach
Traditional Procurement |
Western Australia | National |
Infrastructure agency resources
Infrastructure Priority List