It was the first bridge to be built across the River Severn downstream of Gloucester. The year was 1879. But 81 years later, a drifting oil barge destroyed part of the Severn Rail Bridge, closing the line.
This film records the dismantling of the structure's 22 surviving spans using what, at the time, was one of the world's largest floating cranes. Most of the bridge's 800-tonne structure was sold for scrap but some sections were sent, intact, to be used in the construction of other bridges.