Opened in 1932, as the largest steel arch bridge in the world, the Sydney Harbor Bridge is an iconic landmark spanning one of the finest natural harbors. The famous bridge took eight years to build using 53,000 tons of steel and six-million hand-driven rivets. During construction, the two steel halves of the towering arch met in the middle of the span. The bridge carries rail, vehicular, bicycle, and pedestrian traffic between the Sydney central business district and the North Shore. Image circa 1987.