West Gate Tunnel Project

This project by CPB Contractors John Holland JV has registered for a Design v1.2 IS Rating.




The West Gate Tunnel Project (WGTP) is a city-shaping project that will deliver a vital alternative to the West Gate Bridge, provide quicker and safer journeys, and remove thousands of trucks off residential streets. 

Key construction works include:

  • Upgrading and widening the West Gate Freeway from 8 to 12 lanes and include express lanes. New express lanes between the M80 and the West Gate Bridge will reduce weaving and merging that leads to traffic congestion.
  • New tunnels from the West Gate Freeway to the Maribyrnong River, taking motorists and trucks underground and off residential streets
  • A new bridge over the Maribyrnong River and an elevated road along Footscray Road will provide direct links to the Port of Melbourne, CityLink and an extended Wurundjeri Way
  • A continuous journey from Werribee to the city for cyclists with over 14 km of new paths
  • State-of-the-art smart technology across the length of the project linking it to other freeway management systems across the city.

Landscape improvements to Kororoit Creek and the intersections of Williamstown & Miller’s Roads.



  • Rating Type Road
  • Registered Date January 2018
  • Practical completion 2022
  • State VIC
  • Suburb Melbourne
  • Assessor Phonse Everard
  • Capital Value $6.7 Billion
  • Other Key Stakeholders Victorian Government, Transurban Group





To find out more about this project, visit the West Gate Tunnel Project website.