The West Gate Bridge is a steel box girder cable-stayed bridge in Melbourne, Victoria, Australia. It spans the Yarra River, just north of its mouth into Port Phillip, and is a vital link between the inner city (CBD) and Melbourne's western suburbs; with the industrial suburbs in the west and with the city of Geelong, 80 kilometres (50 mi) to the south-west. It is one of the busiest road corridors in Australia.
Just before lunch on 15 October 1970, the West Gate Bridge suddenly groaned. An eerie pinging noise filled the air. A storm of rust flakes peeled off weathered steel. The girders started to turn blue. The bridge fell away beneath their feet. Minutes later, 35 workers were dead.

My photo shows just a section of the bridge.