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Home > Major Sydney Metro tunnels contract awarded

Major Sydney Metro tunnels contract awarded

Written by Tris Thomas on 22/12/2021 in News

Tagged: Sydney Metro,Western Sydney Airport

Major works are set to commence on the new Sydney Metro – Western Sydney Airport metro line after a $1.8bn contract was awarded to CPB Contractors and Ghella to build the project’s new twin metro rail tunnels.

Sydney

The first of four TBMs will be in the ground by early 2023 to deliver 9.8km of twin metro rail tunnels in two sections, under the first major contract to be awarded as part of the project.

The Station Boxes and Tunnelling contract includes:

  • 8km of twin rail tunnels in two sections. The 4.3km northern tunnels run from St Marys to Orchard Hills and the 5.5km southern section of tunnels runs between the Airport Business Park and the Aerotropolis Station
  • Excavation and civil works for new stations at St Marys, Orchard Hills, Western Sydney International (Nancy-Bird Walton) Airport, and Aerotropolis
  • Four hard rock TBMs
  • Building one of the two temporary precast concrete factories for the project on the Western Sydney International site
  • More than 67,000 concrete segments to line the twin tunnels
  • Two TBM launch sites at Orchard Hills and Western Sydney International and two TBM retrieval sites at St Marys and Aerotropolis Station

Once the tunnelling contract is complete in late 2024, work will continue to lay tracks and fit out stations.

The Australian and NSW governments are jointly delivering the 23km metro railway and six stations between St Marys and the Western Sydney Aerotropolis, including two stations at the airport.

The driverless 23km metro line will link St Marys to the centre of the new Aerotropolis via the new Western Sydney International (Nancy-Bird Walton) Airport, with six stations to be built along the alignment.

 

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