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TBM Joan relaunches towards State Library

Tunnel boring machine (TBM) Joan has begun its 1km 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 2 TBMs have broken through at State Library, they will continue digging under Swanston Street to link up with the new Town Hall Station.

Metro Tunnel