Glasgow Old Bridge, 1838.
© Science Museum / Science & Society Picture Library
Diagram in elevation and plan, showing the addition to the bridge's width made with cast iron. Thomas Telford (1757-1834) replaced the old bridge which was eventually inadequate to cope with the increased traffic in Scotland's busiest city. Illustration from Telford's 'Atlas to the Life of Thomas Telford, civil engineer', published in London in 1838.