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Cof Cymru: National Historic Assets of Wales · Wales

Pwll y Llygoed Tramroad Bridge

Trimsaran, Carmarthenshire, Wales

A Grade II listed building in Pont Newydd, Trimsaran, Carmarthenshire, designated on 23 July 2003.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Pwll y Llygoed Tramroad Bridge, Trimsaran, Carmarthenshire, 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
No class recorded
Date of designation
23 July 2003
Locality
Pont Newydd
Community
Trimsaran
Unitary authority
Carmarthenshire
Country
Wales
Coordinates
51.73840, -4.25184
Cadw reference
81328

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)
  • 1891 · Sheet 10. Ordnance Survey of England and Wales. . (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 229 Carmarthen (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1920 · Sheet 100. Llanelly. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Spanning the Gwendraeth Fawr river approximately 2.3km NNW of Trimsaran, and immediately N of Maesgwendraeth Farm.

Part of a tramroad that took coal from collieries at Carway to Kymer's Canal, which was completed in 1769. The date of the tramroad, and bridge, is not certain. The tramroad is said to have been built c1770, which would make the bridge the oldest surviving railway bridge in Wales, and alternatively to have been built c1802. Masonry details suggest that the present bridge was built later, although still perhaps in the first half of the C19, and therefore replaced an earlier structure. The tramroad was still in use in 1863.

A single-span bridge of coursed stone (overgrown at the time of inspection). Its segmental arch has hammer-dressed voussoirs.

Listed for its special industrial-archaeological interest as an early railway bridge, associated with the oldest canal in Wales.

Scheduled Monument CM261.

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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