The Sydney Metro West project achieved a significant milestone as construction continues at the Hunter Street Station cavern, the deepest underground structure in the CBD of Sydney, bringing the mega transport hub one step closer to completion.

Sydney Metro West advances with Hunter Street cavern
Image: Sydney Metro

This is reported by the railway transport news portal Railway Supply.

Key developments during Sydney Metro West construction

Over 28,000 tonnes of concrete have already been deposited to fill the floor of the cavern. The construction goes 180 meters long, 28 meters broad, and 20 meters high. Thus, the size highlights the scale of the industry.

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The workforce began waterproofing and lining the turnback and cavern tunnels, which extend 1.2 kilometers beyond the platforms. The tunnels will permit the reversing of trains and the smooth movement of commuters through the expanding metro network.

Tunnelling and station development milestones

The lining work will require 12,000 tonnes of reinforcing and more than 110,000 tonnes of concrete, along with more than 50,000 square meters of waterproof lining. At the same time, 38 percent of the lining work for the cavern has already been completed.

Two surface shafts are also in construction. The principal entrance and exit points to the future Hunter Street Station will be well connected to George Street, Light Rail, Wynyard and Martin Place stations.

Sydney West tunnelling nears completion

Tunnel boring machines Jessie and Ruby are preparing for their final 1.1-kilometer drive beneath the Darling Harbour. When they break through at Hunter Street, it will be the final breakthroughs at the tunnelling stage for the Sydney Metro West.

Currently, approximately 230 employees work at the site daily. The cave should also be completed by the end of 2026. When completed, the station would be a vital commuter and tourist interchange at the central business district in Sydney.

About Sydney Metro West

Sydney Metro West is a new 24-kilometer underground railway corridor that links Sydney’s central business district and Westmead. The new railway line will be equipped with new stations, shorten travel times, and enhance network capacity for Australia’s fastest-growing city.

What is the Sydney Metro West project?

The Sydney Metro West is a major infrastructure project that will connect the CBD in Sydney and at Westmead. It will feature new underground stations and twin tunnels and advanced facilities to improve travel times and capacity.

When will Hunter Street Station open?

Hunter Street Station will be completed by the end of 2026. When it opens, it will be a key transport hub linking metro services and Sydney Trains to Light Rail and nearby commercial precincts.

How many employees are working on construction?

About 230 people work daily at the site of the cavern. The activities they carry out are pouring of the concrete, tunnel lining, waterproofing, and preparation for the last breakthroughs by the tunnel boring machines.

Source: www.railexpress.com.au

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