The Sydney Metro WSA SBT project is the design and construction of twin 9.8km tunnels and station boxes connecting St Marys with Orchard Hills and the Airport Business Park with the new airport city centre, Aerotropolis (Bradfield).

The project provides a key transport connection to the new Western Sydney International Airport.

The works included TBM and roadheader tunnelling works, tunnel permanent lining, dive structures, and the excavation and support of 5 station boxes and 3 shafts.

Transport for NSW’s M6 Stage 1 project features twin 4km tunnels linking the M8 Motorway at Arncliffe to President Avenue at Kogarah. The works involve complex roadheader tunnelling through varying geology, the construction of a dive portal structure, and upgrades and tie-ins to existing road infrastructure.

– 4km twin road tunnels

– Excavation:

– Roadheaders in Hawkesbury Sandstone
– Excavators in sands and clay with jet-grouting treatment

– 125m open cut + 230m cut & cover excavation (with top-down construction method)

– 2 caverns: section up to 267m²

– 3-lane tunnels: section up to 182m²

– 27 cross passages

TfNSW Website    CPB Website    Ghella Website    UGL Website

Sydney Gateway is the “missing link” that connects Sydney’s motorway network to Sydney Airport. The project consists of over 5km of new road including 19 new bridge structures, a new elevated flyover to the Domestic Terminals, and over 3km of new shared cycle and pedestrian pathway.

The project was delivered successfully despite facing significant complexities and constraints in its interfaces with live traffic and airspace.

The first stage of the Suburban Rail Loop – SRL East – is a fully-tunnelled 26-kilometre metro corridor between Cheltenham in the South and Box Hill in the North. The line will include six stations, including new interchanges with existing heavy rail stations at Cheltenham, Clayton, Glen Waverley and Box Hill, with new stations at Monash and Burwood.

The Suburban Rail Loop Authority (SRLA) has separated SRL East into seven packages. Included in the scope of Works Package C is:

–  Tunnelling and cross passages over the 16-kilometre Cheltenham and Glen Waverley section, and;

–  Clayton and Monash station box excavations, including temporary retaining structures.

The TSD project is the underground and brownfield rail surface works associated with the design and construction of the new Cross River Rail. The 10.2km railway includes 5.9km of twin tunnels running beneath the Brisbane River and CBD with four new underground stations at Boggo Road, Wolloongabba, Albert Street and Roma Street.

The project also provides a new above ground station at Exhibition, a rebuild for seven stations between Dutton Park and Salisbury, construction of three new stations on the Gold Coast, delivery of two new stabling and maintenance facilities, and commissioning of a new world class signalling system.

Cross River Rail Website

The Tunnel & Station Excavation (TSE) project is the second stage of the Sydney Metro network that connects stage 1 at Chatswood to the existing heavy rail at Sydenham.

The connection consists of twin 15.5km TBM tunnels that cross beneath Sydney Harbour and includes the complex excavation of underground caverns to facilitate new stations at Chatswood, Crows Nest, Victoria Cross, Barangaroo, Martin Place and Pitt Street (Gadigal) with an open cut station box excavation at Waterloo.