Image: Erin Thompson MP
Adelaide’s south is set for smoother, safer, and faster travel with the opening of the $120 million Majors Road Interchange upgrade, a project that delivers on both state and federal commitments to improve infrastructure and support growing communities.
Opening to traffic yesterday, the interchange marks a major milestone for one of the city’s busiest southern transport corridors, connecting Lonsdale Road and Main South Road. The project promises shorter, safer journeys for the thousands of commuters who rely on Majors Road each day.
Currently, around 13,200 vehicles use the route daily, a number expected to grow to nearly 14,700 by 2036. With new on and off-ramps providing direct access to the Southern Expressway, travel will be smoother for drivers heading to and from Adelaide’s southern suburbs and the Fleurieu Peninsula.
The Southern Expressway already carries around 74,000 vehicles a day and serves as a vital gateway to tourism destinations including McLaren Vale and Kangaroo Island.
Federal Infrastructure Minister Catherine King said the upgrade was a significant win for local communities.
“The upgrade to Majors Road Interchange means safer and faster journeys for the growing communities of Adelaide’s south, and for people visiting the Fleurieu Peninsula,” she said.
“This project has provided a boost to the local economy and will deliver real benefits to local communities. It’s a huge win for locals who rely on these roads every day and tourists who want to come visit this beautiful part of South Australia.”
The $120 million project received equal funding from both the Albanese and Malinauskas Labor governments. Construction began in March 2024, supporting 245 South Australian jobs and exceeding social inclusion goals, with 12 per cent Indigenous participation, 10 per cent apprentices and trainees, and four per cent of workers from disadvantaged backgrounds or long-term unemployment.
State Infrastructure Minister Emily Bourke said the project reflects the government’s long-term investment in the state’s future.
“The state government is investing billions of dollars’ worth of infrastructure projects across South Australia that will benefit the community for years to come,” she said.
“We’re making travel easier, faster and, most importantly, safer, and that’s a great contribution to the state. It’s great to see the Majors Road Interchange, an election commitment by the Malinauskas Government, open to road users ahead of schedule.”
The upgrade also delivers environmental and recreational benefits, including 1.8 kilometres of new shared-use paths linking key cycling routes and community destinations such as Glenthorne National Park, Glenthorne Farm, and O’Halloran Hill Recreation Park. Around 42,000 new plants and more than 200 mature trees were added as part of the works.
While the interchange is open, reduced speed limits will remain temporarily to allow the new road surface to settle before reaching full operating speed.
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