Darlington Upgrade Project

Latest News: Traffic Switch - October 2017


The Darlington Upgrade Project is another important stage in the delivery of Adelaide’s North-South Corridor and will deliver an upgrade of approximately 3.3 kilometres of the existing Main South Road, including:

  • A non-stop motorway between the Southern Expressway and Tonsley Boulevard
  • A lowered, non-stop motorway passing underneath Flinders Drive, Sturt Road, Sutton Road/Mimosa Terrace and Tonsley Boulevard
  • Grade separation of the Main South Road/Ayliffes Road/Shepherds Hill Road intersection
  • Main South Road (at grade) surface roads along both sides of the lowered motorway to provide connections to Flinders Drive, Sturt Road and most local roads
  • Full free flow interchange at the Southern Expressway/Main South Road with dedicated ramps providing direct access to the new motorway and Main South Road

For further details please visit the Department of Planning, Transport and Infrastructure website.

 Darlington Artist Impression

Artist's Impression of Darlington Upgrade Project - view from south of Sturt Road, looking north.


Latest news

To find out more, visit the Department of Planning, Transport and Infrastructure website.


Do you have a query?

If you have any queries about the project, please speak to the project team from the Department of Planning, Transport and Infrastructure.

  • Phone: 1300 626 097
  • Email: dpti.southroad@sa.gov.au
  • Visit their site office at Level 2, Sir Mark Oliphant Building 5 Laffer Drive, Bedford Park.
  • Post a letter to Darlington Upgrade Project, Department of Planning, Transport and Infrastructure, Reply Paid 1533, Adelaide SA 5001.

City of Marion contact:
Georgie Johnson
Phone: 8375 6679
Email: georgie.johnson@marion.sa.gov.au