Sydney Metro tunnel

Sydney Metro is Australia’s largest public transport project. It will transform Sydney, delivering more trains and faster services across the network.

John Holland CPB Ghella (JHCPBG) has been contracted to design and construct the Tunnel and Station Excavation Works for Sydney Metro City and Southwest.

The works include:

  • Twin 15.5-kilometre metro rail tunnels from Chatswood to Marrickville, including under Sydney Harbour and the CBD

  • Excavation and civil works for six new metro stations at Crows Nest, Victoria Cross, Barangaroo, Martin Place, Pitt Street and Waterloo

  • Construction of two dive sites at Chatswood and Marrickville and a rail crossover cavern at Barangaroo

  • Excavation of a temporary shaft at Blues Point to retrieve tunnel boring machines and a substation shaft at Artarmon to provide power for future train operations

  • Precast facility at Marrickville to produce the concrete tunnel-lining segments.













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