Augusta Highway Duplication - Port Wakefield to Lochiel

Project Overview

The Australian and South Australian governments have committed $260 million (80:20) to Augusta Highway Duplication Project. This includes the duplication of the Augusta Highway, from Port Wakefield to Lochiel.

The Augusta Highway is the key road corridor between Port Wakefield and Port Augusta and forms part of the National Land Transport Network, providing crucial connectivity to regional South Australia and interstate.

The key benefits of this project include:
• improved road safety for all road users;
• improved freight productivity;
• reduced travel times; and
• improved efficiency and network reliability.

The Port Wakefield to Port Augusta (PW2PA) Alliance has been engaged by the Department for Infrastructure and Transport to undertake early works for the highway duplication.

The Augusta Highway Duplication between Port Wakefield and Lochiel is expected to be completed in early 2024.


Estimated Date
Early works
September 2021
Site establishment
October 2021
Construction commences
November 2021
Project completed
Early 2024

Project Updates

Winter 2021

Works Notices

Port Wakefield to Lochiel - Kangaroo Hill Road Closure - March 2022

Port Wakefield to Lochiel - Construction Commencement - January 2022

Lochiel to Redhill - Construction Commencement - November 2021

Early Works Commencement - August 2021

Fast Facts


$260 million Augusta Highway Duplication, jointly funded by the Australian and South Australian governments.


Improved safety for all road users
Improved efficiency
Improved freight productivity

Vehicle Use

More than 10,000 vehicles travelling on the Augusta Highway each day.