Toggle navigation. Home Forth Bridge Facts and figures. Facts and figures Vital statistics for a marvel of Victorian engineering. The Forth Bridge first opened in The overall length of the Forth Bridge is 2, metres The main structure portal to portal measures 1, metres The highest point of the Forth Bridge stands metres above high water and metres above its foundations 53, tonnes of steel and 6. Forth Bridge. Facts and figures. The bridge builders.
Construction statistics. Building the bridge. Growth and milestones. Construction gallery. World Heritage Site. It was the worst bridge disaster in history. So when engineers proposed bridging the even wider Firth of Forth, the Scottish public demanded a structure that looked like it could never fall down.
They got it. Chief engineers Sir John Fowler and Benjamin Baker came up with the perfect structural solution: a cantilever bridge. The Firth of Forth Bridge is made of a pair of cantilever arms, or beams "sticking out" from two main towers.
The beams are supported by diagonal steel tubes projecting from the top and bottom of the towers. These well-secured spans actually support the central span. Spanning 1. As its fame grew beyond the world of engineering, the bridge entered the common lexicon when the job of painting it was used to represent a task that never ends.
In , the famous rail crossing was joined on the firth by the Forth Road Bridge. On nomination for World Heritage Status, Unesco was unstinting in its praise for the bridge, with its inspectors stating: "Innovative in design, materials, and scale, the Forth Bridge is an extraordinary and impressive milestone in bridge design and construction during the period when railways came to dominate long-distance land travel.
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