At its inception, the Cairo railroad bridge at the confluence of the Mississippi and Ohio Rivers (Cairo, Illinois) was the largest and most expensive one ever undertaken in the USA.
At 10580' it was the longest metallic structure in the world with a  total length of over 20,000' including the wooden trestles.
The main spans were the longest pin-connected Whipple truss spans ever built.

cairo bridge spoons

cairo bridge spoon

Return to Bridge spoon index

Return to spoon planet exhibits index