South Road Superway

SITE |  South Road, Angle Park SA

CLIENT  |  Urban Superway - Consortium of John Holland, McMahon Contractors and Leed Engineering

CONSTRUCTION VALUE  |  $842 million

Constructed above one of Adelaide’s busiest roads, the South Road Superway is a 4.8 km, multi-lane, non-stop roadway featuring 2.5 km of raised road platforms - one of the longest in Australia and South Australia's first.

48 hour turn around on all compaction control testing and geotechnical advice ensured our client experienced no hold-ups on site - Keeping the project on track.

The low bearing capability of the soft soils in the area had the potential to disrupt construction, as there was a risk the ground would not support the equipment required. Collaboration between FMG & GHD allowed for the design of specialised platforms that would ensure the cranes and piling rig could be used safely – Making it possible for our client to proceed without undue delay costs.

Project Benefits

  • Integrated Geotechnical and Compaction Control testing allowed for fast expert advice on potential risks and accurate monitoring of the site – Mitigating risk for our client.
  • Specialist knowledge of local soil conditions allowed for the design of tailored platforms – Allowing construction to continue safely.
  • Fast turn around times kept the project moving forward – Allowing our client to hit construction targets on time!

Key Personnel 

Gary Turnbull, Laboratory Development Manager

Stewart Fincher, Senior Soils Technician 

Who We Worked With


Image Credit

John Holland 


Urban development & infrastructure



Materials & testing