Stage two of the project includes the realignment of the Aldinga Beach Road and Sellicks Beach Road intersections.

An underpass at the intersection of Main South Road with Aldinga Road and Aldinga Beach Road would also be built, as would two U-turns to ensure local access in addition to the Aldinga interchange.

To separate north and south-bound traffic, the government wants to install wide centre medians and wire rope safety barriers, conceding that some vegetation would need to be removed to “improve sight distances and allow for increased road width”.

The Malinauskas Government earmarked in last year’s state budget that it would spend $125 million over two years for the full duplication of Main South Road in line with an election promise.

The entire Fleurieu Connections project is set to cost $685 million.

WATCH THE GOVERNMENT’S FLY-THROUGH BELOW

[solstice_jwplayer mediaid=”JKLjWxQb” title=”Stage two of the Main South Road duplication project. ” caption=”Video: SA Government” /]

The key route connects Adelaide with the Fleurieu Peninsula, with the state government saying the duplication would result in “safer, faster journeys for motorists and a vital boost for local tourism and communities”.

It says over 900 jobs would be supported each year during construction.

“Early works will start mid-2023, with major construction starting by late-2023,” Infrastructure and Transport Minister Tom Koutsantonis said today. “We want to see competition by early-2026.

“Of course, that’s all dependent on weather, but we are very, very committed to making sure this is going to be one of those great pieces of infrastructure that’s going to enhance the beauty of this area – not detract from it – make it more usable and more importantly, make it safer.”

The public has until February 3 to provide feedback on the concept design via the Department for Infrastructure and Transport website.