The Sydney Metro City & Southwest will extend from the city's north west, beneath Sydney Harbour, through new underground CBD stations, and beyond to Bankstown.
Minister for Transport and Infrastructure Andrew Constance said the government would work with industry to deliver Australia’s biggest public transport project, with the tunnelling contract expected to be awarded mid-2017.
“It’s full steam ahead on Sydney Metro. We’ve now taken the next step and opened expressions of interest for tunnelling, asking industry to partner with us in delivering this city-shaping project,” Mr Constance said.
The first of five tunnel boring machines will be in the ground before the end of 2018 to deliver new twin railway tunnels from Chatswood to Sydenham.
Sydney Metro & Southwest is expected to open by 2024.
Visit the Sydney Metro website to find out more about the project.