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Civil works are underway and stabling facilities are being constructed to connect the existing Sydney Metro line with its extension to the City and Southwest.
In Rouse Hill, the current stabling yards are being expanded with a new test track, stabling roads, and overhead wiring.
The enlarged depot will provide space for the extra 37 trains which will run on the expanded Sydney Metro line when it continues from Chatswood, via the Sydney CBD and onto Bankstown.
Systems Connect, a partnership between CPB Contractors and UGL Engineering is delivering the works, of which over 3.1 kilometres of track and 6,500 sleepers have been installed. Twelve thousand tonnes of ballast has also been delivered.
The facility will be operational by the end of 2021 and all works will be complete by 2022, ahead of the new line opening in 2024. A Sydney Metro spokesperson said this lead time would allow for bedding in the new rollingstock.
“The expanded depot will be used for testing and stabling of the new metro trains as they progressively arrive.
“New metro trains will arrive well in advance of the opening date so we can carry out the necessary testing.”
At Chatswood, foundations are being laid to connect the existing Metro North West line to the tunnel which will take trains under Sydney Harbour before emerging in Sydenham.
Work has had to be delivered in a 48-hour shutdown of the current suburban rail services, to reduce disruption. 130 workers have been on the project, including moving 330 tonnes of soil, using piling rigs to drill 34 holes up to 8 metres deep. Future works will involve excavating 7,500 tonnes of material and repositioning the existing suburban rail line.
Limiting resources and using recycled materials has been a key focus of the project, both in the first stages of Sydney Metro and current upgrade works.
At the new stabling facility in Rouse Hill, crushed recycled glass used to bed down pipes, instead of sand, using 1,000 tonnes of recycled glass. Recycled road base made of old crumbled concrete is used to make the hardstands for laydown areas and a car park for staff.
Water saving measures include using recycled water, such as rainwater and runoff. Dust block is used to bind find dust, instead of water.
This article first appeared on www.railexpress.com.au
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