The final piece of the project is made up of the Eastern Tunnelling package, which includes 3.5 km of twin tunnels under Sydney Harbour, between The Bays and Sydney CBD, as well as the excavation of Pyrmont and Hunter Street stations.
The shortlist includes: the Acciona Construction Australia and Ferrovial Construction join venture; Bouygues Construction, Vinci Construction Grand Projects and Soletanche Bachy International join venture; and the John Holland, CPB Contractors and Ghella joint venture.
The Eastern Tunnelling package will see tunnel boring machines cross under Johnstons Bay alongside the Anzac Bridge, before heading to the new Pyrmont station and then down and under Darling Harbour before reaching Hunter Street in the heart of the CBD, in between Wynyard and Martin Place.
Sydney Metro West will double rail capacity between greater Parramatta and the Sydney CBD, with a target travel time of about 20 minutes between the two centres.
The project will deliver rail to new areas of the city, cutting crowding on three major lines and potentially removing tens of th0ousands of cars off the roads every day.
The Eastern Tunnelling Package contract is expected to be awarded by the end of 2022, while the Sydney Metro West is on track to be completed in 2030.
For more information visit the Sydney Metro website.