Close
Close
Advertisment
Discovery Homepage
Search
Machines and Engineering
Discovery Channel branded t-shirt and glider (Link: Competition) Industrial Revelations' host, Rory McGrath (Link: Competition)

Vote for your favourite engineering icon to win a Discovery goody bag

more
Rory McGrath's Industrial Revelations
Forth Railway Bridge

Forth Railway Bridge

Fact file

William Morris, the 19th century Arts and Crafts designer, called the Forth Railway Bridge “the supremest specimen of all ugliness”

The Forth Railway Bridge was the ultimate civil engineering project of the 19th century.

It was the first major structure in the world to be built from steel - 55,000 tonnes of the stuff, held together by 6.5 million rivets.

 

The idea behind its design - a balanced cantilever - was well known, but nothing of this size had ever been attempted. It’s built on massive metal cylinders, known as caissons, sunk deep into the river bed and filled with over 18,000 cubic metres of granite. Its gigantic girders are 521m wide.

 

Thousands of men helped build it, and over 60 died during its construction, by falling, drowning or being crushed to death.

 

It was designed by Sir Benjamin Baker and Allan Stewart, and built by Sir William Arrol in just seven years. It opened in 1890 at a cost of a then massive £2.5 million.

Images © DCI / Corbis

Copyright © 2008 Discovery Communications, LLC