The Government of South Australia is duplicating Main South Road from Seaford to Sellicks Beach and Victor Harbour road between Main South Road and the McLaren Vale turn off.
Details of the projects are as follows:
Main South Road Duplication
- Stage One - 10 kilometres of Main South Road from south of Griffiths Drive in Seaford to Aldinga. This will include the duplication of the Pedler Creek Bridge at Seaford Rise.
- Stage Two - will include a ‘2+1’ lane road layout for approximately six kilometres from Aldinga to Sellicks Beach. This will also include grade separatiosn and road alignments at Aldinga Beach Road and Aldinga Road, and overtaking lanes between Myponga to Cape Jervis.
Victor Harbour Road Duplication
- Stage One - five kilometres between Main south Road at Old Noarlaunga and main Road at McLaren Vale.
- A planning study for the second stage of the duplication between McLaren Vale and Wilunga Hill is being uindertaken.
Key Dates
| Dec 2021 | Contract Award |
| Apr 2022 | Construction commencement: Main South Road Duplication |
| Jul 2022 | Construction commencement: Victor Harbour Road Duplication |
| 2026 | Expected Construction Completion |
Funding contributions
| Federal Government | |
| SA Government | |
|
The Federal and SA Governments are jointly funding the project. The governments have not made public the funding split between the two governments following an increase to the estimated total cost of the project from $685 million to $810 million in 2024. |
|
Procurement
| Procuring Agency: | South Australian Department for Infrastructure and Transport |
| Successful Tenderer: | Fleurieu Connections Alliance – a consortium comprising CPB Contractors, Aurecon and GHD. |
PROJECT HISTORY
| Jul 2019 | Stakeholder and community consultation on Planning Study concluded. |
| Sep 2021 | The Government of South Australia released the final designs for the Main South Road Duplication project. The update revealed Stage Two will comprise a '2+1' structure instead of a duplication. |
| Dec 2021 | The South Australian Department for Infrastructure and Transport awarded the $560 million Fleurieu Connections Package to the Fleurieu Connections Alliance – a consortium comprising CPB Contractors, Aurecon and GHD. |
| Apr 2022 | The SA Department of Infrastructure and Transport announced major works had commenced on the Main South Road Duplication. |
| Jun 2022 | The 2022-23 SA Budget allocated $125 million over two years to deliver Stage Two of the Main South Road Duplication, extending the project to Sellicks Beach, as well as announcing additional overtaking lanes between Myponga and Cape Jervis. |
| Jul 2022 | Major works commenced on the Victor Harbour Road Duplication. |
| Jan 2023 | The SA Government released concept designs for Stage Two of the Main South Road Duplication. |
| Jun 2024 | The SA Government announced that the new Pedler Creek Bridge and demolition of the old structure had been completed. |
| Jun 2024 | The 2024-25 SA Budget allocated $145 million in FY2024-25 for the Fleurieu Connections Package. The Budget revealed an increase in the project’s total estimated cost from $685 million to $810 million. The project’s expected construction completion date was also pushed back from December 2025 to December 2026. |
Estimated Total Cost
(2024)
Sector
Road
Procurement approach
Alliance |
Location
South Australia |
Resources
