Delivering a major boost to the road network in Western Sydney.
The M7-M12 Integration project will support the future development growth in Western Sydney by improving travel times and congestion.
Delivered by John Holland on behalf of WSO Co, a joint venture comprising Transurban Group, Canada Pension Plan Investment Board and QIC Private Capital on behalf of its managed funds and clients, the project included the delivery of the M7-M12 Interchange, the Elizabeth Drive Connection and the widening of the Westlink M7 Motorway.
Completed ahead of schedule and on budget while keeping one of Sydney's busiest motorways moving, this critical piece of infrastructure will help the Airport Precinct come to life and become a new economic centre for Western Sydney.
The project included three major elements:
M7-M12 Interchange
- A new motorway to motorway connection, between the existing M7 Motorway and the new toll free M12 Motorway, including construction of seven new bridges.
Elizabeth Drive Connection
- a new connection between the M12 Motorway and Elizabeth Drive, and the realignment of Wallgrove and Cecil Roads at Cecil Hills.
Westlink M7 Widening
- Widening the M7 Motorway from two lanes in each direction to three lanes between the M5 Motorway and Richmond Road (excluding the Light Horse Interchange).
- The upgrade of 41 bridges along the alignment.
- Customer
WSO Co Pty Ltd - Location
Western Sydney, NSW - Specialisation
Roads & bridges - Start
2023 - End
2026
Using a method that allowed bridges to be built and launched incrementally over live traffic, our team constructed seven new bridges to form the interchange while keeping around 180,000 motorists moving on the M7 every day.
That includes the longest incrementally launched curved road bridge in Australia, featuring both vertical and horizontal curves, alongside key connections linking traffic seamlessly between the M7 and M12.
