The construction works for the Sydney Metro City & Southwest line have entered a new phase, with construction work to extend the tracks from Chatsworth under Sydney Harbour having begun.
The Sydney Metro City & Southwest line will connect the southeastern terminus of the Sydney Metro Northwest line at Chatsworth with Bankstown via Sydenham. Tunnelling under Sydney Harbour for this line was completed in March 2020. Now the construction work to extend the railway tracks between Chatsworth and the city has started.
This section of works, called the Northern Connection, is being completed within the existing railway corridor, though efforts are being made to keep impacts on train services on the T1 North Shore commuter line as low as possible.
330 tons of soil have been removed from the site, while piling rigs have drilled 34 eight-metre holes. These foundation works are part of the ramp-like structure that will allow metro trains to enter and exit the new metro tunnels.
In total, 7,500 tons of material will be excavated. A section of the existing T1 line will also be moved to create the structure. The timeline is for it to link into the tunnels in 2022.
The contractor, Systems Connect, employed a workforce of around 130 people to perform the work. It had a window of 48 hours to complete the work so that Monday morning services could resume as scheduled.
Once complete, passengers in Sydney will be able to travel from Tallawong to Bankstown without changing. The Sydney Metro City & Southwest section, 30km in total, is due to open fully in 2024.
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