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Breakthrough milestone for Forrestfield Airport-Link

The 130 m, 600 t machine has spent more than 900 days tunnelling through varying and challenging conditions, including under Perth Airport and the Swan River.

Arriving at the Bayswater dive structure at the end of April, the TBM completed a total of 16 km for the project comprising twin bored tunnels of 8 km each, which will link three new rail stations at Forrestfield, Airport Central and Redcliffe to the existing network.

The breakthrough comes just nine weeks after the project’s other TBM arrived at the same location on 18 February 2020.

The end of tunnelling will bring a new phase for the project with the focus now shifted to tunnel fit-out and civil construction.

To date, 50 per cent of the first stage of the track slab has been constructed within the tunnels, while 35 per cent of TBM support pipes have been removed.

Track laying is expected to commence in July, subject to construction regulations during the COVID-19 pandemic.

For more information visit the Forrestfield Airport-Link website.

If you have project news you would like featured in Trenchless Australasia contact Journalist Sophie Venz at svenz@gs-press.com.au

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