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  • International Database for Civil and Structural Engineering

Broom Bridge

General Information

Other name(s): Brougham Bridge
Status: in use

Project Type

Structure: Arch bridge
Function / usage: Road bridge


Location: ,
Address: Broombridge Road
Coordinates: 53° 22' 22.46" N    6° 17' 59.71" W

Technical Information

There currently is no technical data available.


16 October 1843

Sir William Rowan Hamilton first writes down the fundamental formula for quaternions while on the bridge.


A commemorative plaque on the bridge reads: "Here as he walked by
on 16 October 1843
Sir William Rowan Hamilton
in a flash of genius discovered
the fundamental formula for
quaternion multiplication
i² = j² = k² = ijk = -1
& cut it on a stone of this bridge."


Currently there is no information available about persons or companies having participated in this project.

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