North South Corridor

Continue construction of a non-stop North - South Corridor from Gawler to Old Noarlunga to support economic development

The North–South Corridor is Adelaide’s most important transport route for north and south bound traffic, including many freight vehicles, between Gawler and Old Noarlunga, a distance of 78 km. The development of this critical corridor funded by the state and commonwealth governments, continues in stages.

Darlington Upgrade Project

The upgrade of this 2.3 km section of Main South Road between the Southern Expressway and Ayliffes Road at Darlington will provide non-stop access and improve traffic efficiency between the Expressway and the intersection of Ayliffes and Shepherds Hill Roads. The project reached the tender stage of the procurement phase by 30 June 2015.

Torrens Road to River Torrens Project

The upgrade of this 3.7 km section of South Road will provide a 3 km non-stop roadway between Ashwin Parade and Torrens Road, including 2 km of lowered motorway beneath Port Road, Grange Road and Hawker Street. The project also involves intersection upgrades, an overpass for the Outer Harbor rail line, and new cycling and pedestrian facilities. It also will improve freight efficiencies and access. By 30 June 2015 early works had started and the major works contract was awarded to the T2T Alliance of Leighton Contractors, Aurecon Australasia and South Australian company York Civil.

Associated projects

An upgrade of the South Road–Richmond Road intersection, one of Adelaide’s most congested intersections, and Richmond Road will improve traffic flow at this location along the North–South Corridor. The duplication of James Congdon Drive to provide two new lanes in each direction will also support the increase in traffic volumes expected during the major construction works on South Road.

The department also released a 10 Year Delivery Strategy, for completing the remaining stages of the North-South Corridor.