AECOM joint venture to provide detailed design for Western Harbour Tunnel

The joint venture’s detailed design is expected to reduce negative impacts on the marine environment while minimizing disruption to recreational and commercial harbour users1.  

AECOM (NYSE: ACM), the world’s trusted infrastructure consulting firm, today announced that its joint venture with Aurecon has been awarded a contract by Acciona Construction Australia for the detailed design of the Western Harbour Tunnel, which will create a bypass of the Sydney central business district.

“We are proud to help create a better-connected road network for Sydney commuters with a design aligned to our commitment to delivering Sustainable Legacies,” said Lara Poloni, AECOM’s president. “Through our Think and Act Globally strategywe will bring our technical expertise and vast tunneling experience from around the world to deliver the best solution for the environment, community and the treasured Sydney Harbour.”

Following the acceptance of an alternative client reference design, the AECOM joint venture will deliver a detailed design of the Western Harbour Tunnel that avoids dredging by utilizing tunnel boring machines instead of an immersed tube tunnel.

“The improved design and construction method is an excellent example of industry collaboration and is expected to deliver significant reductions to the amount of steel and concrete required, as well as other environmental benefits, compared to the original reference design,” said Richard Barrett, chief executive of AECOM’s Australia and New Zealand region. “Importantly, the new Western Harbour Tunnel will help the region better meet the demands of its growing population by reducing congestion while also reducing the impact on the harbour1.”

The new 6.5-kilometer Western Harbour Tunnel is expected to cut traffic by 35 percent in the Western Distributor, 20 percent in the Sydney Harbour Tunnel, and 17 percent on the Harbour Bridge2.

About AECOM 

AECOM (NYSE:ACM) is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $13.1 billion in fiscal year 2022. 

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