Human Tech Tree
Researched1779 · Industrial Age (1700 – 1900)

Energy & Industry / Manufacturing & Construction

Iron Bridge

The Iron Bridge at Coalbrookdale (1779) spans the Severn with a cast-iron arch and shows that iron can be a structural material.

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Abraham Darby III's bridge, with a span of about 30 m, was the first major bridge built of cast iron and a symbol of the new industrial age. Iron bridges soon carried canals, roads and railways.

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