Breakthrough! Sydney Metro tunnels reach major milestone
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1 Articles
Breakthrough! Sydney Metro tunnels reach major milestone
Two tunnel boring machines (TBMs) are halfway to St Marys after each building 2.4 kilometres of tunnel for the Sydney Metro – Western Sydney Airport project. TBMs Catherine and Marlene reached the milestone when they broke through at the Claremont Meadows services facility shaft, after launching at the Orchard Hills Station site in July and August 2023 respectively. Tunnelling at an average speed of 120 metres a week, the TBMs are carving out th…
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