Forth Road Bridge: Cost and Opening

The Forth Road Bridge (Firth of Forth, Scotland) was built for a capital cost of £20 million (1964 value). Adjusted for inflation (UK CPI), this equals approximately £450–500 million in 2024 terms.

Key Facts

• Opened: 4 September 1964 by Queen Elizabeth II.
• Type: Suspension bridge, main span 1,006 m (3,300 ft) — 4th longest world at opening.
• Designer: Mott, Hay & Anderson (Freeman Fox & Partners).
• Contractor: Sir William Arrol & Co., Cleveland Bridge, Dorman Long.
• Tolls: Charged until 2008 (northbound only); removed by Scottish Government.

Subsequent History

• 2017: Queensferry Crossing (new 2.7 km cable-stayed bridge) opened for motorway traffic.
• Current role: Forth Road Bridge dedicated to public transport, cyclists, pedestrians — ~25,000 crossings/day.
• Category A listed (Historic Environment Scotland).

The £20M investment transformed Fife–Edinburgh connectivity, enabling commuter belt expansion and economic integration—returned manifold in regional GDP.