The NSW Government has selected CIMIC Group company CPB Contractors and John Holland to deliver the Western Harbour Tunnel PPP project on a design and construct contract basis.

The project involves the excavation and lining of the Western Harbour Tunnel driven tunnels, including ventilation tunnels, between the stubs provided by the Rozelle Interchange and Birchgrove Oval.

The enabling works will facilitate the efficient construction of the Western Harbour Tunnel and its seamless integration into the Sydney motorway network. It will ease traffic congestion on the existing harbour crossings and improve Sydney’s liveability.

The construction work is expected to be completed in 2025.