Main South Road Duplication Project (Stage 1) - Seaford to Aldinga

Seaford to Aldinga

Between Seaford and Aldinga, Main South Road will be fully duplicated.

This will include:

• a grade separation (overpass) at the intersection of Tatachilla Road and Maslin Beach Road;
• a grade separation (underpass) at the intersection of Port Road;
• a grade separation and road alignment at the intersection of Main South Road and Aldinga Road, removing the planned roundabout at Aldinga Road;
• a Shared Use Path for pedestrians and cyclists along the length of the upgrade with links to Aldinga and the Coast to Vines Rail Trail; and

Major construction works commenced on the Seaford to Aldinga section of Main South Road in April 2022.