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Broom Bridge (Hamilton Bridge)

Broom Bridge (Hamilton Bridge)

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Broom Bridge (Hamilton Bridge)

Cycling

4.4

(22)

Location: Dublin, Leinster, Ireland

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June 7, 2026

Cycling

Historic stone arch bridge over the Royal Canal in Cabra, world-famous as the place where mathematician William Rowan Hamilton carved his quaternion formula into the bridge in 1843. A commemorative plaque marks this exact spot today.

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February 6, 2022

Cycling

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February 6, 2022

Cycling

Broom Bridge. Here as he walked by on 16th October 1843 Sir William Rowan Hamilton in a flash of genius discovered the fundamental formula for quaternion multiplication & cut it on a stone of this bridge.

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Details

Informations

Elevation 40 m

Weather

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Wednesday 21 October

12°C

4°C

32 %

Additional weather tips

Max wind speed: 14.0 km/h

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See nearby routes

Location: Dublin, Leinster, Ireland

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