The completed railway tracks at the facility sit on 11,500 sleepers and 26,000 tonnes of ballast.
Nine kilometres of both track and overhead wiring is also now in place.
The facility will be used for:
- train washing
- inspections and repairs
- major train maintenance
- wheel maintenance.
It will eventually provide stabling for 46 trains and maintenance services for a fleet of 76 trains as part of the new metro network.
“This milestone means we’re one step closer to metro services running in Sydney’s booming North West, delivering a world class commuter service for generations to come,” Minister for Transport and Infrastructure Andrew Constance said.
Across Sydney, more than 22km of railway tracks have now been installed, including inside Australia’s longest railway tunnels between Bella Vista and Epping.
Sydney Metro will open in the first half of 2019 with a metro train every four minutes in the peak.