Tunnel boring machine (TBM) Nancy has reached Martin Place, marking the twin railway tunnels as 70 per cent complete.
TBM Nancy has now tunnelled 6.8 km via the new metro stations at Waterloo, Central and Pitt Street in Sydney, New South Wales.
The caverns for the new Martin Place Station – located 28 m under the CBD – took 21 months to build with 180,000 t of rock removed.
NSW Premier Gladys Berejiklian said this historic milestone means 22 km of the Sydney Metro tunnels have been completed within 11 months.
“While people are getting on with life in the city above, deep underneath the CBD giant machines like TBM Nancy are getting on with the job, building tunnels for our future metro rail,” said Ms Berejiklian.
NSW Minister for Transport Andrew Constance said the tunnelling is pivotal to a well-connected public transport system in Martin Place.
TBM Nancy will undergo maintenance checks before being relaunched to complete the last 1.3 km section between Martin Place and Barangaroo.
For more information visit the Sydney Metro website.
If you have news you would like featured in Trenchless Australasia contact Managing Editor Chloe Jenkins at email@example.com