Location: South Queensferry and North Queensferry, Scotland
Completion Date: 1890
Cost: $15 million
Length: 8,276 feet
Longest Single Span: 350 feet (center span)
Engineer(s): Benjamin Baker, John Fowler
In the late 1800s, a railway bridge across Scotland's Firth of Tay swayed and collapsed in the wind. Seventy-five passengers and crew on a passing night train died in the crash. 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.