Southern Expressway Duplication


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Traffic restrictions on Main South Road, Bedford Park

Southbound traffic on Main South Road, Bedford Park (adjacent the Southern Expressway entry/exit) will be reduced to three lanes during inter-peak times (7am - 3:30pm weekdays and 7am-7pm weekends) from Wednesday 3 September 2014 for approximately four days.

One northbound lane will also be closed from 9:30am until 3:30pm.

Speed restrictions of 40km/hr and 25km will be in place.

The restrictions will be in place to allow for the replacement of overhead signage at this location.

These signage works are part of a rolling program of works that also affects Marion Road, Panalatinga Road and Sherriffs Road. Details of further restrictions will be provided in the near future.


Southern Expressway open to two-way traffic

The Southern Expressway opened to two-way traffic on Sunday 3 August 2014.

Please click here to download a copy of our latest brochure, providing information on how to use the duplicated expressway. Please observe and obey on-site signage and take care whilst driving along the expressway and through the interchanges.


Works after opening to two-way traffic

Some construction activities will continue 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.

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.