Pont-y-Cafnau

Coordinates: 51°45′17″N 3°23′44″W / 51.75467°N 3.39550°W / 51.75467; -3.39550
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Pont-y-Cafnau
Pont-y-Cafnau
Coordinates51°45′17″N 3°23′44″W / 51.75467°N 3.39550°W / 51.75467; -3.39550
Carries(originally) Gurnos Tramway, aqueduct; (today) pedestrians
CrossesRiver Taff
LocaleCyfarthfa Ironworks, Merthyr Tydfil
Characteristics
DesignKing post truss
MaterialCast iron
Total length14.2 metres (47 ft)
History
DesignerWatkin George
Constructed byCyfarthfa Ironworks
Construction endJanuary–June, 1793
Location
Map

The Pont-y-Cafnau (

railway bridge.[1][2][3][4]

History

The Cyfarthfa Ironworks were founded in 1765 and grew to the world's largest

Taff River.[8] The bridge was built between January and June 1793, replacing a previous wooden structure, and is the world's oldest known iron railway bridge.[1][2]
The elevated trough carrying the Taff Fawr leat was removed by 1850, having been replaced by a leat along the south bank of that river.

Design

Pont-y-Cafnau, showing detail of joints

The present bridge was designed by Watkin George. George had been trained as a carpenter, but in 1792 became the chief engineer of the ironworks and a partner in the business.

dovetail and mortise and tenon joints commonly used in wooden structures.[1][2][10]

Heritage

On 22 August 1975, the bridge was listed as a Grade II*

Scheduled Ancient Monument (reference number GM424).[4] It has been refurbished by the local authority and is used as a footbridge.[2]

See also

References