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Craigellachie Bridge
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Craigellachie Bridge

bridge, Scotland, United Kingdom
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Quick Summary

The Craigellachie Bridge, built in 1814 over the River Spey in Scotland, is the oldest surviving metal bridge designed by Thomas Telford. This bridge, with its 45-meter (150-foot) arch, features a flat, parabolic profile created by two connected arches with X-bracing. Its roadway is supported by thin diagonal members that transfer loads to the arch. The use of iron during the Industrial Revolution allowed for stronger and often more cost-effective bridge designs compared to traditional timber or masonry.1

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2 Britannica Sources
  1. Forth Bridge
  2. bridge - Early designs

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