At the southern end of CRL’s Albert St trench, the first section of tunnel box walls has been formed.
Contractor Connectus Joint Venture is moving progressively from Wyndham St to Customs St, concreting one section of tunnel box at a time.
The Albert St tunnels are being built in 29 sections, each 12 metres long and requiring 330 m3 of concrete. Steel reinforcing bars are tied together prior to the concrete being poured to form the structure of the tunnel. There is a total of 81 tonnes of steel reinforcing used for each tunnel box section.
At the two viewing platforms, at Wyndham and Swanson Sts, you can now observe base slab and concrete wall formation, excavation, wall shotcreting and steel strut and waler installation.
By the end of June, you will be able to see the first complete section of Albert St tunnel box from the Wyndham St pedestrian bridge.
Connectus has now completed 65% of the trench excavation.