Northern Tunnel Portal Construction

Cross River Rail is a new 10.2-kilometre rail line. It includes 5.9 kilometres of twin tunnels from a southern portal near Dutton Park station under the Brisbane River and the Brisbane CBD.

The northern portal is where trains will enter and exit Cross River Rail’s twin tunnels and is located in the rail corridor at Normanby.

Base slab construction beneath the Northern Tunnel Portal roof

Northern Tunnel Portal construction update - September & October 2022

The Northern Tunnel Portal structure will be fully enclosed following the installation of the final pre-cast roof components in September. Construction of the topping slab and backfill of the remaining roof area will then be completed. Inside the structure, construction of the permanent internal walls and base slab is ongoing.

Works notices

Works notices

Access information on works notifications relating to construction at our Northern Portal sites.