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Safety Upgrades on Eight Country Roads

About the project

The Australian and South Australian Governments have completed the work to safety reinstate the 110km/h speed limit on eight country roads.

The $70 million in funding ensures the roads meet the appropriate safety standards to allow the efficient movement of vehicles.

This safety improvement supported 245 jobs and was delivered on an 80:20 basis with $56 million from the Australian Government and $14 million from the State Government, as part of the $1.115 billion funding announced in the 2019-20 State Budget for regional roads and infrastructure.

Regional roads are crucial to building and connecting strong communities and growing regional economies.

Upgrades to 440 kilometres of road have occurred at the following locations:

  • Goyder Highway (Crystal Brook to Gulnare)
  • Clay Wells Road (Southern Ports Highway to Callendale Road)
  • Riddoch Highway (Mount Gambier to Port MacDonnell)
  • Carpenter Rocks Road (Burrungule Road to Mount Gambier)
  • Ngarkat Highway (Pinnaroo to Bordertown)
  • Browns Well Highway (Loxton to Pinnaroo)
  • Cleve Road (Cleve to Kimba)
  • Andamooka Road (Andamooka to Olympic Dam).

Works delivered under this initiative included:

  • shoulder sealing and roadside hazard protection or removal to reduce the risk and severity of “run-off road” type crashes
  • pavement works to improve ride quality
  • improvements such as line marking and signage and, on higher traffic volume roads, includes  a wide centre line treatment, intersection upgrade and Audio Tactile Line Marking.


Works are now complete on 440 kilometres of road across eight locations and speed limits have been raised to 110km/h.

A further 21km of works on Ngarkat Highway are expected to be completed and signposted by the end of 2021, weather permitting. These resealing works are part of the second stimulus $210 million Road Safety Package, jointly funded (80:20) by the Australian and South Australian governments. Audio Tactile Line Marking will be undertaken on the entire length of Ngarkat Highway at the conclusion of the resealing works.

Image: Cleve Road narrow road shoulder to be sealed

Further information

If you have any questions about these projects, please:

  • email:
  • telephone: 1300 794 880, or
  • write to: GPO Box 1533, Adelaide SA 5001.