M6 Stage 1

Engineering and Technical Opportunities

The M6 Stage 1 will deliver the missing link from Sydney’s south to the wider Sydney motorway network making journeys easier, faster and safer. It will remove more than 2,000 trucks a day from surface roads, and help return local streets to local communities.

  • Twin four-kilometre tunnels linking the M8 Motorway at Arncliffe to President Avenue at Kogarah
  • Ramps between the main motorway tunnel and the surface intersection at President Avenue
  • Tunnel stubs for a future connection south to extend the M6
  • A new intersection at President Avenue including the widening and raising of President Avenue at this location
  • Provision of new shared cyclist and pedestrian pathways connecting Bestic Street, Brighton Le Sands
  • Motorway support infrastructure including tunnel ventilation systems and the motorway control centre
  • New service utilities including a permanent power supply line
  • Minor adjustments to local roads in the project area.


M6 Stage 1


Coffey - A Tetra Tech Company


Sydney, NSW

Time Frame

2021 to Current

Value Added to the Project

JDK was engaged to undertake geotechnical site investigations under the management of Coffey/Tetra Tech. Our organisation was able to apply the systematic capture of geotechnical and geological information to suit the current Australian Standard AS1726 and was able to work autonomously in conjunction with the effective management of site safety and documentation protocols.

Project Highlights