Hagg Bank Bridge, West Wylam ...

... built in 1876, the line was closed on 11th March 1968. Known locally as Points Bridge, Half-moon Bridge, Bird Cage Bridge, or The Tin Bridge. The bridge's design came about because it needed to avoid having piers in the river bed which would disrupt shallow mine workings underneath. It is thought that Wylam Railway Bridge was a model for the later Tyne Bridge in nearby Newcastle and the Sydney Harbour Bridge in Australia (information from Wiki).