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Cof Cymru: National Historic Assets of Wales · Wales

Pont y Gwaith

Treharris, Merthyr Tydfil, Wales

A Grade II listed building in Pontygwaith, Merthyr Tydfil, Treharris, designated on 6 April 1988.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Pont y Gwaith, Treharris, Merthyr Tydfil, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
6 April 1988
Locality
Pontygwaith
Town
Merthyr Tydfil
Community
Treharris
Unitary authority
Merthyr Tydfil
Country
Wales
Coordinates
51.66948, -3.33133
Cadw reference
11515

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1636 map "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1636 · Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ... (David Rumsey Map Collection, Stanford Libraries)
  • 1637 · The fourth table of England. Cornub. Devonia, Somerset etc. (David Rumsey Map Collection, Stanford Libraries)
  • 1865 · England and Wales. England No. 6. (David Rumsey Map Collection, Stanford Libraries)
  • 1895 · Sheet 11. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1963 · Map No. 13 - Local Government Commission for Wales : [Definitive maps showing proposed… (National Library of Scotland)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Reached down a steep by-road from the old Cardiff to Merthyr road; by-road crosses the former Taff Vale Railway and the line of the Merthyr tramroad before descending to river. Sharp right hand turn on to bridge.

Road bridge carrying farm lane over Taff marked on plaque as of 1811, the arch rebuilt in 1993, but said in previous listing to be probably later C18 and by G Breese said to be post 1828, when bridge was recorded as being of wood.

Road bridge, rubble stone humped-backed with single arch of exceptional steepness and wide (16.8m) span, rise of 4.8m and width of 4.2m. Arch has thin long cut stone voussoirs, rubble stone soffit. Spandrels are of small stones, the coursing swept up over thin arch crown. Abutment piers are broader, square, with squared stone quoins and base courses. Parapets are rebuilt in rock-faced stone with rock-faced stone rounded copings, splayed out at ends.

Included as a narrow river bridge of exceptional character, crossing the river in a single steep arch.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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