Major milestone as Majors Road Interchange opens to traffic

The $120 million Majors Road Interchange upgrade is complete, delivering shorter and safer journeys through Adelaide’s southern suburbs.

The newly widened Majors Road bridge has opened to traffic for the first time, enhancing travel on an important arterial road that connects Lonsdale Road and Main South Road.

Approximately 13,200 vehicles travel daily on Majors Road, with the number expected to increase to around 14,700 during peak times by 2036.

The new on/off-ramps for the Southern Expressway at the Majors Road junctions are also now open to road users, helping create a seamless journey for commuters in the southern suburbs.

The Southern Expressway serves as the gateway to the Fleurieu Peninsula, carrying about 74,000 vehicles per day and supporting economic activity and tourism in the region, including Kangaroo Island.

The project was jointly funded by the federal and state governments, with both contributing $60 million.

Major works on the project began in March 2024, and across its duration, 245 South Australian jobs have been supported, including 12 per cent of the cohort Indigenous employees, 10 per cent apprentices and trainees, and four per cent individuals facing barriers to employment or who were long-term unemployed.

The completed project includes 1.8 kilometres of new shared-use paths to connect two major cycling routes, increasing access to important community facilities, including Glenthorne National Park–Ityamaiitpinna Yarta, Glenthorne Farm and O’Halloran Hill Recreation Park.

About 42,000 new plants have been introduced throughout the project, including more than 200 mature trees.

The new ramps are open to the public from 12 October; however, speed limits on the on/off-ramps will remain reduced for a few weeks to allow the road surface to develop traction for safe driving at higher speeds.

Federal Infrastructure, Transport, Regional Development and Local Government Minister Catherine King said the upgrade to Majors Road Interchange 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.”

Federal Member for Kingston Amanda Rishworth said the project is a major milestone for residents living in Adelaide’s Southern Suburbs.

“For years I’ve been fighting alongside my community to have access to the Southern Expressway to get where they need to go faster and save time commuting.

“Not only is this opening good for locals today, but it will also ensure that our community can access the new north-south corridor upgrades in the future.”