M4-M5 Link Rozelle Interchange in a 50:50 joint venture with John Holland.
The interchange will generate revenue of approximately $1.95 billion to the CIMIC Group.
Construction will start next year and conclude in 2023.
CIMIC Group Chief Executive Officer Michael Wright said: “The CIMIC Group continues to deliver end-to-end infrastructure solutions for our clients, ensuring that the needs of future generations are met.
“Importantly, our construction, tunnelling and engineering expertise within both CPB Contractors and our engineering company EIC Activities are key to the successful delivery of the Rozelle Interchange, the last stage of the WestConnex project.”
CPB Contractors Managing Director Juan Santamaria said: “The award of the WestConnex Rozelle Interchange reflects CPB Contractors’ unrivalled experience in delivering major transport projects across Australia.
“We’re proud to be working with Roads and Maritime Services to ensure the safe and on-time delivery of this important project.”
CPB Contractors has completed the WestConnex M4 Widening project and is delivering the WestConnex M4 East and WestConnex New M5 with its joint venture partners.
The company is also delivering Sydney Metro Northwest, Sydney Metro Stage 2 and the Line-wide works package in support of the Sydney Metro City & Southwest.
The WestConnex M4-M5 Link Rozelle Interchange will connect the extended M4 and the New M5 to the Anzac Bridge and Victoria Rd. It will also provide for a connection to the proposed Western Harbour Tunnel and Beaches Link project.