The big dig at Sydney Metro is underway – watch the launch video now

25 Jul 17

Our team is now starting the big dig at Sydney Metro to deliver a new metro railway crossing deep under Sydney Harbour.

Watch Sydney Metro’s launch video here to learn more about this significant project.

On 22 June 2017, CPB Contractors, with its joint venture partners, was awarded a $2.81 billion contract by the NSW Government to deliver twin 15.5km tunnels and associated civil works on Stage 2 of the Sydney Metro project – Australia’s biggest public transport project.

Click here to read the full media statement.

Design and construction works include:

  • Twin 15.5 kilometre tunnels from Chatswood to Sydenham travelling under Sydney Harbour and the CBD using five tunnel boring machines (TBMs).
  • 57 cross passages approximately every 240 metres between the tunnels and a temporary access shaft at Blues Point.
  • Tunnel dive structures at Chatswood and Marrickville.
  • Excavation of six new underground metro stations at Crows Nest, Victoria Cross, Barangaroo, Martin Place, Pitt Street and Waterloo.
  • A crossover cavern at Barangaroo to allow trains to cross from one track to another.
  • Design and manufacture of about 99,000 precast concrete segments to line the tunnels.
  • Demolition and removal of existing buildings on the construction sites.
  • Tunnel and station excavation works are expected to start in coming weeks with the contract to conclude in mid-2021.

CPB Contractors is Australasia’s largest tunnelling contractor, working across the roads, rail, water, power and utilities sectors. In Australia, our tunnelling history goes back to 1958 and the Snowy Mountains Hydro Electric Scheme. In South East Asia, we’ve built tunnels in Hong Kong, Singapore, Taiwan and Malaysia.

Working closely with clients and partners, our projects connect communities, play a key role in urban and rural development, help drive economic growth and provide vital, long-term infrastructure.

Top: The Sydney Metro team has undertaken extensive geotechnical investigations under Sydney Harbour to guide the design of the new Metro tunnels. 

Above: Signing certificates to mark the announcement of the Sydney Metro Tunnel and Station Excavation Works contract (L to R: Sydney Metro Program Director Rodd Staples, NSW Premier Gladys Berejiklian, Transport and Infrastructure Minister Andrew Constance and John Holland CPB Contractors Ghella Joint Venture Project Director Terry Sleiman).

(Images courtesy of Transport for NSW)