Southern Expressway Duplication

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Marion Road Interchange – road resurfacing works

Resurfacing works will take place on Marion Road between Main South Road and Macklin Street, from Sunday, 26 October until Wednesday 29 October, at night between 7pm and 6am, for the Southern Expressway Duplication.

Marion Road will remain open during the works (with speed and lane restrictions in place), except for Wednesday, 29 October whereby the northbound carriageway will be closed from 7pm to 6am.

During this time the Southern Expressway will remain open for travel in both directions however restrictions will be in place at the Marion interchange entry and exit ramps.

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

Main South Road, Reynella works

Works on Main South Road, Reynella (adjacent the Panalatinga expressway on-ramp) will take place from Wednesday 15 October, 2014, for approximately two weeks for the Southern Expressway Duplication project.

The works will occur Monday to Saturday, between the hours of 7:00 am and 5:00 pm (works on Wednesday 15 October will start at 9.30 am).

Works include the installation of drainage, lighting and safety barriers on Main South Road, Reynella.

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

Beach Road bridge shared pedestrian path works

Works will be undertaken at the Beach Road bridge from Monday, 13 October 2014 for approximately 10 days, between the hours of 7am and 3.30pm, for the Southern Expressway Duplication.

Works include widening of the footpath on the northern side of the bridge.

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

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 delivers an 18.5 kilometre multi-lane, two-way expressway between Bedford Park and Old Noarlunga.

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

The duplicated expressway supports economic activity in Adelaide’s southern commercial and industrial areas like Reynella, Lonsdale and Noarlunga Centre and helps 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.