Tunnel boring machines (TBMs) are large machines that excavate below the ground surface, while simultaneously installing concrete lining units to build a tunnel.
Emergency egress shafts provide safe exit points in the event of an emergency, and access to the Forrestfield Line's twin-bored tunnels for maintenance,
Located 9kms from Perth CBD, Redcliffe Station will service the growing local community and offer passengers a 15 minute trip into the city.
With TBM Grace's journey well underway, and TBM Sandy set to start tunnelling later this month, activity across all sites is ramping up.
With TBM Grace now tunnelling and Sandy soon to launch, production of tunnel segments has ramped up over the past month.