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Track the Tunnel Boring Machines (TBMs)

TBM1 Elizabeth and TBM2 Florence are digging 9 km from Bella Vista to Cherrybrook. TBM3 Isabelle and TBM4 Maria will travel 6 km from Cherrybrook to Epping, delivering the twin 15 km Sydney Metro Northwest tunnels. On average, the tunnels are 29 m deep, with the deepest point at 58 m.

Track the TBMs' progress below as they deliver Sydney Metro Northwest. This tracking shows indicative locations. If you need more specific information on a TBM location, please telephone our Community Information Line on 1800 019 989.


  • Elizabeth = 8.97km
  • Florence = 8.96km
  • Isabelle = 5.67km
  • Maria = 5.69km

Map Legend:

  • TBM start
  • Tunnel Boring Machine (TBM)
  • TBM progress
  • Stations
  • Alignment
More information