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Cof Cymru: National Historic Assets of Wales · Wales

Pont Gweirglodd Gilfach

Llanuwchllyn, Gwynedd, Wales

A Grade II listed building in Cwm Croes, Llanuwchllyn, Gwynedd, designated on 31 January 2001.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Pont Gweirglodd Gilfach, Llanuwchllyn, Gwynedd, 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
31 January 2001
Locality
Cwm Croes
Community
Llanuwchllyn
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.81989, -3.65218
Cadw reference
24707

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 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

Historical maps covering this location

  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 136 Bala (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Located approximately 200m S of the eponymous farm and spanning the Afon Groes.

Pont Gweirglodd Gilfach was the sole survivor, amongst bridges in the locality, of the floods of 1781. Although known locally as the `Roman Bridge' it is probably C17 in its present form. The road it formerly carried has disappeared and is now merely a sheep track.

Single-span bridge of crude vernacular construction, boulder built. Segmental arch with irregular boulder voussoirs. There is no parapet, and probabably never was.

Listed as an early vernacular regional road bridge, probably C17, retaining unaltered character.

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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