The Sydney Harbour Bridge is a steel arch bridge across Sydney Harbour that carries rail, vehicular, and pedestrian traffic between the Sydney central business district (CBD) and the North Shore. The dramatic view of the bridge, the harbour, and the nearby Sydney Opera House is an iconic image of both Sydney and Australia.
The bridge is locally nicknamed The Coathanger because of its arch-based design, although this usage is less prevalent than it once was.
The bridge was designed and built by Dorman Long and Co Ltd, Middlesbrough, Teesside and was the city's tallest structure until 1967. According to Guinness World Records, it is the world's widest long-span bridge and its tallest steel arch bridge, measuring 134 metres (429.6 ft) from top to water level. It is also the fourth-longest spanning-arch bridge in the world.