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Port Wakefield Overpass and Highway Duplication

Project Overview

The Australian and South Australian Governments have committed $90 million ($72 million from the Australian Government and $18 million from the South Australian Government) for the Port Wakefield Overpass and Highway Duplication Project.

Port Wakefield Road typically carries 8,800 vehicles per day, however this can increase to around 16,000 during holiday peak periods. As a result of high holiday traffic volumes and conflicting traffic movements at the intersection with the Copper Coast Highway, lengthy queues have been experienced causing substantial delays. The Augusta Highway and Copper Coast Highway intersection north of Port Wakefield is one of the State’s busiest regional road intersections being a national and regional link between Adelaide, Port Augusta and the Yorke Peninsula.

A Concept Design was released in August 2018. On 28 January 2019, the South Australian Government announced new design options were being considered, which has resulted in an updated Concept Design taking into account feedback from stakeholders.

Features of the updated Concept Design include:

  • Two lanes in each direction through the Port Wakefield Township with provisions for safe U-turn movements.
  • A realigned dual carriageway through the Port Wakefield Township, allowing for increased parking and landscaping opportunities, as well as safer vehicle and pedestrian movements;
  • A realigned Balaklava Road intersection with the Port Wakefield Highway, allowing for safer turn movements.
  • A new two-lane overpass for traffic traveling southbound from the Copper Coast Highway to Port Wakefield, and for traffic travelling along the Augusta Highway to the Copper Coast Highway.
  • The new overpass will remove all hazardous at-grade turn movements at the intersection of the Port Wakefield Highway, Copper Coast Highway and Augusta Highway.

The project will improve traffic flow and reduce congestion for all road users, particularly during peak travel times and public holidays, and improve safety and freight productivity along the National Land Transport Network.

Click here for information about the September 10 2019 Community Information Session in Port Wakefield.

Click here for Concept Design Images and Plans

Project Time Frame

Site investigation works commenced in early 2019, and are ongoing.

Major construction works are expected to begin in 2020, with completion expected in 2022.

Project Cost

$90 million

Contact us

For information on the Port Wakefield Overpass & Highway Duplication Project please contact:

P: 1300 794 880

Written correspondence can be directed to:

Port Wakefield Overpass and Highway Duplication Project
Department of Planning, Transport and Infrastructure
GPO Box 1533
Adelaide SA 5001

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