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Cof Cymru: National Historic Assets of Wales · Wales

Efail-y-plas Bridge (partly in Llanelidan Community)

Derwen, Denbighshire, Wales

A Grade II listed building in Clawddnewydd, Derwen, Denbighshire, designated on 30 October 2000.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Efail-y-plas Bridge (partly in Llanelidan Community), Derwen, Denbighshire, 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
Communications
Date of designation
30 October 2000
Locality
Clawddnewydd
Community
Derwen
Unitary authority
Denbighshire
Country
Wales
Coordinates
53.04857, -3.34879
Cadw reference
24346

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 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 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)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Over River Clwyd 1 km south of Derwen Hall.

Probably a County bridge of the C18.

A single segmental arch bridge crossing the River Clwyd, with a span of about 15 metres. Axe-dressed rubble stonework with a projecting course on the extrados of the arch and at the base of the parapets. The voussoirs are varied in depth with deeper stones at the abutments and the least deep stones at the crown of the arch. Low parapets about 5 metres apart with thin flat coping stones.

An elegantly designed single arch bridge.

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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