Darlington Upgrade

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
The $620 million project is jointly funded by Australian and State governments ($496 million federally funded and $124 million state funded). It is due to be completed in 2019.