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AAP
AAP
Business
Luke Costin

Next Sydney tunnel to burrow below harbour

Sydney's new harbour tunnel will be burrowed below the sea floor instead of laid on top of it. (Dean Lewins/AAP PHOTOS) (AAP)

Taking Sydney's $5 billion second harbour tunnel underground will deliver economic and environmental benefits, the NSW government says.

The decision to burrow the Western Harbour Tunnel under the sea floor, rather than dropping the tunnel onto it, was revealed on Thursday.

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