Tunnel boring machine (TBM) Ruby has begun carving out the final section of tunnel for the Sydney Metro West project. Launching from The Bays, TBM Ruby will join TBM Jessie in constructing the 2.3km twin railway tunnels, creating a critical new connection between Sydney’s west and the heart of the city. The tunnels will run …
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Ruby deployed for final Metro West tunnel beneath Sydney Harbour

Tunnel boring machine Ruby. (Images: Sydney Metro)