Although it’s not a race, TBM Sandy is catching up to TBM Grace. Sandy has now reached the 5.5-kilometre mark of her 8km journey toward Bayswater. She’s currently tunnelling underneath the Tonkin Highway road reserve in Ascot and has installed more than 3200 rings.

Both tunnel boring machines (TBMs) have been working hard, completing more than 12km of tunnelling in total and installing more than 7000 rings in the process. They are being closely followed by the concrete crew, who have poured more than 3000 metres of track slab between the Forrestfield tunnel portal and Redcliffe Station.