The 1946 railway bridge was also a major technical achievement at the time of its construction, its large riveted steel trusses and its footings were still among the deepest in the world. It remains the longest purpose built rail bridge in the NSW network. The bridge itself as well as the remnant construction docks, platform and power station demonstrate the technical achievements in the construction of the bridge. The docks in particular provide direct evidence for the method of construction and the challenges associated with construction in this estuarine environment.