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John Holland CPB Ghella JV wins $2.81bn Sydney Metro tunnelling contract


Posted by Monica Gameng

Construction will soon be underway on new twin metro rail tunnels which will run under the Sydney Harbour and the heart of the CBD, with the major $2.81 billion tunnelling contract signed and awarded to John Holland CPB Contractors Ghella Joint Venture.

Works will begin immediately to get the first of five tunnel boring machines in the ground by the end of 2018.

“Today’s historic milestone unlocks a generational change to the way people will get around Sydney.

“The scale of this project and what it will do for the ease and speed of travelling across Sydney is hard to comprehend. We’ve done the hard yards and now it’s delivery time for the next stage of Sydney Metro,” Premier Gladys Berejiklian said.

According to Transport and Infrastructure Minister Andrew Constance, the line will extend the new metro rail from Sydney’s North-West into the City and Bankstown which will connect to the new metro stations that are already under construction at Castle Hill, Bella Vista, Rouse Hill, Kellyville and beyond.

“This new metro line will eventually stretch 66 kilometres and connect dozens of suburbs along the way. When services through the City start in 2024, the tunnels will move more people than the Harbour Bridge and Sydney Harbour Tunnel combined,” Mr Constance said.

The contract will involve:

  • Twin 15.5km metro rail tunnels from Chatswood to Sydenham
  • Excavation and civil works for six new metro railway stations at Crows Nest, North Sydney, Barangaroo, Martin Place, Pitt Street and Waterloo
  • Four double-shield, hard rock, gripper type tunnel boring machines and one specialised tunnel boring machine for tunnelling under Sydney Harbour
  • He first tunnel boring machine will be in the ground by the end of next year, with the remainder to follow soon
  • Completion of the tunnel contract expected in 2021

sydney-metro-alignment.jpgSydney Metro alignment (source: Transport for NSW)

Crushed rock will be removed by barges for the excavation at Blues Point, Barangaroo and under Sydney Harbour, following community consultation – which will reduce impacts to the road network as well as cutting truck movements.

“The JHCPBG joint venture partners are honoured to have been selected to work once again with the NSW Government to build a lasting legacy that will transform Sydney – creating massive economic opportunities and greatly improving the daily lives of so many people,” John Holland Chief Executive Officer Joe Barr said.

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Source: Transport to NSW

Monica Gameng

Monica Gameng

Monica is a Marketing Assistant who handles blog content creation. She has a background in IT and has passion for research and writing.