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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.

Transport for NSW awarded the Western Harbour Tunnel Stage 2 contract to ACCIONA in December 2022.

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