Four out of five tunnel boring machines are now finished work for the Sydney Metro, with tunneling work 97 per cent complete.
The first mega borer tunneling under the centre of Sydney has just finished work with its journey coming to an end at the Barangaroo Station site.
The first metro railway tunnel to be built underneath Sydney Harbour has been completed, in a milestone for public transport in Sydney.
After months of assembly and commissioning the Metro Tunnel Project's second tunnel boring machine (TBM) Meg has been launched.
Tunnel boring machine (TBM) Kathleen has dug more than 5550 metres of tunnelling under the Sydney Harbour.