Works start on final leg of Main South Road duplication

Monday, 4 March 2024

The final design for Stage Two of the Main South Road duplication has been released, with major construction work about to kick off.

Works on the newly-duplicated Main South Road between Seaford and Port Road, Aldinga, are nearing final completion.

This next stage will see the duplication of Main South Road continued from Aldinga Beach Road to Sellicks Beach, delivering on a major election commitment at the 2022 state election.

The project includes the realignment of the Aldinga Beach Road and Sellicks Beach Road intersection, an underpass at the intersection of Main South Road with the newly realigned Aldinga Road and Aldinga Beach Road, and three U-turns to facilitate local access, in addition to the Aldinga interchange.

It also includes intersection upgrades at Hart and Colville Roads, Norman and Rogers Roads, and Hahn and Cox Roads, plus installation of wide centre medians and wire rope barriers to improve safety by separating northbound and southbound traffic.

A shared use path will be built along the western side of Main South Road, from Aldinga to Sellicks Beach.

The project is expected to be completed in 2026 and support approximately 405 full-time equivalent jobs per annum over the construction period.

Stage Two of the Main South Road duplication is delivered as part of the $810.4 million Fleurieu Connections project, funded by the South Australian and Australian governments.

Click here to view an animation of the planned Stage Two duplication.