Western Harbour Tunnel will see a new motorway built underneath Sydney Harbour to connect North Sydney to Rozelle, bypassing the CBD. Stage 2 includes connections from Stage 1 at Cove Street, Birchgrove, to the Warringah Freeway near North Sydney, tunnelling under Sydney Harbour and the complete tunnel fit-out.
Stage 2 includes connections from Stage 1 at Cove Street, Birchgrove, to the Warringah Freeway near North Sydney, tunnelling under Sydney Harbour and the complete tunnel fit-out.
Transport for NSW awarded the Western Harbour Tunnel Stage 2 contract to ACCIONA in December 2022.
Western Harbour Tunnel is a major transport infrastructure project that will make it easier, faster and safer to travel around Sydney.
The project uses Tunnel Boring Machines that are among the largest in the Southern Hemisphere, each weighing over 4,350 tonnes and operating 50 metres below sea level.
Design changes introduced by ACCIONA created a construction solution that better balances environmental and community impacts with construction capabilities.