The state government has released details of stage two of the Main South Road duplication project, which it says delivers on its election commitment to duplicate Main South Road from Aldinga through to Sellicks Beach.

The duplication has been funded jointly by the federal and state governments.

Minister for Infrastructure and Transport Tom Koutsantonis says the work will result in safer, faster journeys for motorists and provide a vital boost for local tourism and communities, while supporting over 900 jobs each year during construction.

“This is such an important project, so I am very pleased to see plans coming ahead for the next stage. Anybody who’s been through the area recently will have seen how hard the crews continue to work and that hard work will continue,” he says.

“We’ve released a new video showing how this stage will look once it comes together, and we’re looking forward to reviewing the community’s feedback on the concept design.

Stage two of the project will include the realignment of Aldinga Beach Road intersection and Sellicks Beach Road intersection.

To improve traffic flows, stage two will include an underpass at the intersection of Main South Road with the newly re-aligned Aldinga Road and Aldinga Beach Road. 

Two U-turns will be installed to facilitate local access, in addition to the Aldinga interchange.

Intersection upgrades will be undertaken at Hart and Colville Roads, Norman and Rogers Roads, and Hahn and Cox Roads.

The project will see installation of wide centre medians, wire rope safety barriers to separate northbound and southbound traffic, with some removal of vegetation necessary to improve sight distances and allow for increased road width.

“The roads in this region connect so many important districts – the Fleurieu and its key tourist and beach areas, the McLaren Vale wineries and of course numerous growing communities,” Mr Koutsantonis says.

“Ensuring safe connection and accessibility will allow this region to continue to thrive.

“As work continues, we ask anybody driving through the area to allow extra time, plan ahead and always drive to conditions.”

Feedback on the concept design is open until Friday 3 February. 

To see the design and video, and provide feedback, visit the South Australian Department for Infrastructure and Transport website.

Early work is expected to commence in mid-2023, with major construction expected to begin in late 2023.