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Metro Tunnel

TBM Joan relaunches towards State Library

Posted: 20 Oct 2020

The large cutterhead of a tunnel boring machine fills the entryway of a concrete train tunnel. The view is from inside the tunnel.

Tunnel boring machine (TBM) Joan has begun its one-kilometre journey from the Parkville Station site to the new State Library Station site.

Named after Victoria’s first female premier, Joan Kirner, TBM Joan was the first TBM launched on the Metro Tunnel Project, in September 2019.

TBM Joan has already tunnelled 2.6km - first from Kensington to the new Arden Station in North Melbourne, and then to Parkville.

TBM Meg is also being recommissioned and will follow a parallel journey to Joan towards the CBD in coming weeks.

After the two TBMs have broken through at State Library, they will continue digging under Swanston Street to link up with the new Town Hall Station.

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