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Cof Cymru: National Historic Assets of Wales · Wales

Rhiwaedog Bridge

Llangywer, Gwynedd, Wales

A Grade II listed building in Rhos-y-gwaliau, Llangywer, Gwynedd, designated on 20 October 1966.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Rhiwaedog Bridge, Llangywer, 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
20 October 1966
Locality
Rhos-y-gwaliau
Community
Llangywer
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.89865, -3.57174
Cadw reference
4669

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

Spanning the Afon Hirnant and carrying the country road that leads SE down the Hirnant valley to Lake Vyrnwy from the S end of the village of Rhos-y-gwaliau.

Probably early C19 road bridge.

Built of stone and of three spans with segmental arches with ashlar voussoirs and dripcourses. Plain parapets.

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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