Sydney Metro Western Sydney Airport - Station Boxes and Tunnelling Works

Sydney Metro - Western Sydney Airport is the new metro railway line which will service Greater Western Sydney and the new Western Sydney International (Nancy-Bird Walton) Airport.

The railway will service the new airport and airport business park, the Western Sydney Aerotropolis, Luddenham, Orchard Hills and St Marys - here customers can connect to the existing Sydney Trains suburban T1 Western Line. The NSW and Australian governments have a shared objective of having Sydney Metro - Western Sydney Airport operational when the airport opens for passenger services.

Key features of the project

The project involves the construction and operation of a metro rail line, approx. 23 kilometres in length, between the T1 Western Line at St Marys in the north and the Aerotropolis Core in the south.

The project includes six new metro stations at:

- St Marys, interchanging with the existing suburban railway station and connecting customers with the rest of Sydney's rail system;

- Orchard Hills, to service a future commercial and mixed-use precinct;

- Luddenham, to service a future education, innovation and commercial precinct;

- two stations within the airport site, at the airport terminal and at the airport business park;

- the commercial heart of the Western Sydney Aerotropolis(the area proposed to be named Bradfield).

The alignment of the new metro railway line will:

- include a combination of tunnel, surface, and viaduct sections,

- interface with key roads including the Great Western Highway, M4 Western Motorway, Luddenham Road, the future M12 Motorway, Badgerys Creek Road and Elizabeth Drive, as well as key utilities such as the Warragamba pipeline,

- include a stabling & maintenance facility at Orchard Hills and operational control centre,

- include intermediate service facilities at Claremont Meadows & Bringelly,

Sydney Metro - Western Sydney Airport is broken into the following packages:

Enabling works - site investigation, demolition works, utility relocations, utility supplies to sites, transport network adjustments, rail corridor works etc.

Station Boxes and Tunnelling package (SBT) - awarded to CPB Contractors Pty Ltd & Ghella Join Venture (CPBG JV) in December 2021

Surface and Civil Alignment package (SCAW) - awarded to CPB Contractors and United Infrastructure in March 2022.

Stations, Systems, Trains, Operations and Maintenance (SSTOM) package - is the third major contract package to be procured for the project in 2022.

Station Boxes and Tunnelling package

The Station Boxes and Tunnelling contract includes:

- 9.8 kilometres of twin rail tunnels in two sections. The 4.3-kilometre northern tunnels run from St Marys to Orchard Hills and the 5.5-kilometre 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 Tunnel Boring Machines (TBM);

- 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.

The Station Boxes and Tunnelling (SBT) Project entails all design and construction associated with the delivery of twin metro railway tunnels and excavations of station boxes, including, amongst other things:

* demolition, utility relocation, site remediation and decontamination works

* temporary utility connections

* work associated with the construction of twin bored tunnels

* concrete invert backfill within the bored tunnels

* work associated with the construction of cross-passages between the running tunnels

* mined stub tunnels

* dive excavation and temporary ground support retention

* permanent CIS concrete structure within service shafts

* manufacture, testing, transportation and installation of precast segments

* all safety systems, temporary ventilation systems

* safe, secure personnel access/egress into all underground spaces

* hoardings, fencing

* delivery of all site facilities

Further information on the project is available at sydneymetro.info/westernsydneyairportline.

How to register an Expression of Interest (EOI)

- Work Packages currently available to submit an EOI for are listed in the 'Work Packages' tab above. Refer to the EOI User Guide below for instructions and assistance to submit an EOI.

- To submit an initial EOI for the work packages, companies must have an ICN Gateway company profile. Information on how to register your company on ICN Gateway is detailed below.

ICN Gateway Company Registration

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