Southern Expressway Duplication


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Expressway Lane Closure: Wednesday 30 July 2014, 3.30 pm - 6.30 pm

A single lane closure will be in place on the expressway from Majors Road to the Panalatinga Interchange from 3.30 pm until approximately 6.30 pm on Wednesday 30 July 2014. Speeds will be reduced to 25 km/h through the area.


Extended Weekend Expressway Closure

9:30am Friday 1 August – late Sunday 3 August 2014 The expressway will be closed from 9:30am on Friday 1 August 2014 until late Sunday 3 August 2014 to undertake critical interchange modifications.

The community are advised to expect delays on adjacent roads during this time, particularly during the Friday afternoon peak period. Motorists are encouraged to plan their journeys accordingly, allow additional travel time and, where possible, avoid travelling in the area during the Friday afternoon peak. Some speed and lane restrictions will be in place for construction activities and surfacing works on connecting roads including Main South Road, Marion Road, Sherriffs Road and Beach Road.

New Interchange Layouts

The way you use the interchanges to access the expressway will change significantly to accommodate two-way traffic.

Please study the interchange plans in the brochure (click here to download a copy) and familiarise yourself with the new access arrangements. Once the expressway opens to two-way traffic please observe and obey on-site signage and take care whilst driving through the interchanges.

Works after opening to two-way traffic

Some construction activities will continue following opening of the expressway to two-way traffic, including interchange ramp road works, activation of the new two-way electronic signage system, landscaping, fencing, construction of the new western recreational pathway and noise barrier installation.

For further details on these works please visit the traffic restrictions page.

The $407.5 million duplication of the Southern Expressway is a key part of the development of Adelaide's north-south corridor and, when complete, will deliver an 18.5 kilometre multi-lane, two-way expressway between Bedford Park and Old Noarlunga.

Opening the Southern Expressway to two-way traffic is scheduled to occur in late July/early August 2014 – subject to weather conditions.

This will provide people living in Adelaide’s south with improved access to employment, education, shopping and community facilities and will put Adelaide’s southern beaches and the McLaren Vale wine region within easier reach.

This project will also support economic activity in Adelaide’s southern commercial and industrial areas like Reynella, Lonsdale and Noarlunga Centre as well as help the state achieve identified targets in the South Australia Strategic Plan.

Please follow the links on the menu on the left-hand side or the quick links to the right to find out more about the project.