This project involved the construction of 7 heavy haul rail bridges through rugged terrain in the Pilbara region of Western Australia. These bridges provided a dual-rail track at this critical section of the RTIO rail system.

The bridges comprised precast prestressed concrete girders to maximise off-site construction, robustness and durability. The bridge foundations are subject to very large railway and flood forces and ground anchors were used to resist overturning forces, while minimising in-situ works. Simple and repetitive concrete shapes were adopted to allow re-use of forms and economies of scale.

The overall design provided a robust and highly constructible solution, in a harsh and remote environment.