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Sydney Metro West

The lining erector machine used to line the mined service tunnels which form part of the Sydney Metro West project
INFRASTRUCTURE

Sydney Metro West achieves world-first in tunnelling technology

Use of lining erector machine speeds up construction of service tunnels on Australian Metro project

29 October 2025

TBM Betty breaking through at the end of her 24 months working round-the-clock to construct a tunnel from Sydney Olympic Park to Westmead
INFRASTRUCTURE

Sydney Metro West tunnels reach the end of the line

Betty breaks through at Westmead to complete the first tunnel at the western end of the 24km drive

22 September 2025

Tunnelling for the Sydney Metro West project is nearly 90% complete, with the arrival of two tunnel boring machines (TBMs) at Parramatta’s metro station site
INFRASTRUCTURE

Sydney Metro West TBMs arrive at Parramatta

TBMs Dorothy and Betty have now driven 90% of the tunnelling world on the Sydney Metro project

13 August 2025

Construction of Stage 1 of the Western Harbour Tunnel (WHT) project’s 6.5-kilometre, triple-lane road tunnel has reached a major milestone, with all excavation between Rozelle and Birchgrove now complete
INFRASTRUCTURE

Excavation triumph for CPB Contractors team

Major milestone reached on the construction of Stage 1 of Australia's Western Harbour Tunnel project

06 March 2025

Daphne and Beatrice have broken through at the Sydney Olympic Park metro station site as part of the Sydney Metro West project. Credit: Sydney Metro
INFRASTRUCTURE

Two TBMs breakthrough at Sydney Olympic Park site

TBMs Daphne and Beatrice have broken through at the Sydney Olympic Park metro station site

15 October 2024

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