Main South Road upgrade - Myponga to Yankalilla overtaking lanes

About the project

The South Australian Government is matching the Federal Government’s recently announced $40 million funding commitment to deliver a total of $80 million (50:50) over five years of critical safety improvements on Main South Road between Myponga and Yankalilla

Main South Road is a key route connecting heavy vehicles, commuters, and tourists from Adelaide to destinations along the Fleurieu Peninsula. This road carries around 4,900 vehicles a day.

The road includes many curves and has an undulating environment. This makes overtaking difficult, resulting in delays and driver frustrations that can lead to unsafe behaviours.

This $80 million Main South Road upgrade project will deliver critical safety improvement works along the route between Myponga and Yankalilla over five years.

These Main South Road upgrades will include the construction of two new overtaking lanes, targeted curve easing and road widening, the widening of narrow bridges, and culverts.

This part of Main South Road sees between 1,200 to 2,200 vehicles a day.

This project is expected to support approximately 125 full time equivalent jobs per year over the construction period.

Key benefits

These improvements will increase overtaking opportunities and create a safer environment for all road users travelling to and from the Fleurieu Peninsula.

The project will also support economic growth and improve livability by making travel safe and reliable to key destinations, including Kangaroo Island.

What's next

Input from the community will play an important role to inform the detailed design. More information about these opportunities will be available soon.

To find out more about the project please:

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Email:  dit.engagement@sa.gov.au