The Australian and South Australian governments have committed a total of $810 million to the Main South Road and Victor Harbor Road duplication projects, which are being delivered by the Fleurieu Connections Alliance (FCA).

Work is well underway on Stage 2 of the Main South Road Duplication between Aldinga and Sellicks Beach. Driving through the area, you will have seen a lot of activity along the corridor in preparation for the next stage of construction.

And that’s a wrap! The Victor Harbor Road and Main South Road – Stage 1 duplications are complete. From landscaping to line-marking, the finishing touches have been completed in recent weeks. Both roads are now open to traffic without restriction.

The new Shared Use Path is open and buzzing with cyclists and walkers. Enjoy stunning vineyard views, discover incredible Kaurna artwork, and don’t miss the ocean-themed Coast to Vines underpass and new rest nodes along the way.

On Friday 6 September, traffic moved to the new permanent asphalt, which will eventually become the new northbound on/off ramps, between Hart Road and Old Coach Road. On Monday 16 September, another milestone was realised, when traffic on Aldinga Beach Road was moved onto its new alignment. These milestones will ensure we can get on with building the new interchange on schedule.

We’ll be constructing a new east-west signalised bridge for Aldinga Beach and Willunga travellers, and Main South Road vehicles will travel underneath through a new underpass. The Shared Use Path constructed as part of Stage 1 will continue and extend the full length of the duplication, terminating at Sellicks Beach Road.

Works on Stage 2 are expected to be completed in 2026, weather permitting.

We have achieved some big milestones over the past few months, with piling work on the new interchange commencing, as well as traffic switches on Main South Road and Aldinga Beach Road.

More than 39,000 tonnes of asphalt will be laid and over 320,000 cubic metres of earth will be moved to build the new interchange. The new bridge, which will connect the realigned Aldinga and Aldinga Beach Roads, is expected to be open to traffic in early 2025, followed by the underpass opening in 2026.

We’ve created an artist’s animation of what the completed project will look like, including the interchange, new intersections, U-turn facilities and the final stretch of the new Shared Use Path. You can view the full animation and more on our website at www.fcalliance.com.au

Most of the works on Stage 2 will continue to be undertaken during the day, between 7am and 7pm Monday to Saturday. During this time, you can expect an increased number of vehicles and construction equipment moving through the area and changed traffic conditions. Please take care when travelling in the area and follow the directions of traffic controllers and updated signage.

To minimise impacts to the wider community, we will occasionally need to undertake some night works within the Stage 2 area. When needed, these works will be undertaken between 7pm and 7am Sunday to Friday. If we need to undertake works near your property, we will contact you in advance to let you know. Night works can include road closures or restrictions.

View all works updates

We’re committed to delivering the Main South Road Duplication - Stage 2 project on time and to the highest standards. Each milestone represents a significant step forward in improving infrastructure, enhancing safety, and supporting the growth of our community.

September

• Traffic switched onto the new section of road at Aldinga Beach Road.
  
• Piling starts at the new Aldinga Interchange for the new underpass.
• Cox Road and Norman Road switch to temporary alignments while new intersections are constructed.
• Major pre-cast drainage culvert installed between Hart Road and Perth Street.

Late 2024

• Bridge abutments commence to commence to connect the piles to the bridge structure and support the super-T's.
  
• Soil nail works commence, reinforcing the ground for the underpass.
• Installation of Super-T's on the new Aldinga Interchange.

Look out for us in October at our next pop-up information session, where we’ll be at the Aldinga Central Shopping Centre. We’ll be on hand to answer your questions and provide further details on our works.

Check out our website to see details of this and future sessions and events. As the project progresses, we’ll be out and about in the local Fleurieu community – come and say hi!

And, if you need us at any other time, don’t forget our community information phone line and email address are always available.

View upcoming events

For more information, or to contact a member of the project team, please: