Works underway, design finalised for $120M Majors Road

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Major works are now underway on the Southern Expressway and Majors Road Interchange in Adelaide’s south, with the concept design for the project also now locked in following refinements influenced by community feedback.

Additional technical analysis also guided the refinements, with additions to the design to include the widening of Majors Road from the Southern Expressway to Lonsdale Highway/Ocean Boulevard to provide two lanes of traffic in both directions. The design refinements mean the on/off ramps will be shortened by approximately 100 metres, further minimising impact on land and vegetation.

Majors Road provides a key connection between Lonsdale Road and Main South Road for 13,200 vehicles per day. The project will include new on/off-ramps for the Southern Expressway, which itself carries approximately 74,000 vehicles per day between Darlington and the Reynella Interchange.

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The $120 million project is jointly funded by the Federal and South Australian governments, with each contributing $60 million.

South Australian Premier Peter Malinauskas said the project would provide an important infrastructure boost to the region.

“Majors Road is an integral part of our road network in Adelaide’s south and we’re happy to see works begin on an upgrade that will improve the experience for everyone using the road,” he said.

“Projects like the Majors Road Interchange help the smooth and safe running of our road network, and we thank motorists and locals for their patience while we complete these works.”

The project is expected to be completed at the end of 2025.