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‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

Glasinfryn Viaduct (partly in Pentir community)

Llandygai, Gwynedd, Wales

A Grade II listed building in Glasinfryn, Llandygai, Gwynedd, designated on 22 September 1997.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Glasinfryn Viaduct (partly in Pentir community), Llandygai, 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
22 September 1997
Locality
Glasinfryn
Community
Llandygai
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.19926, -4.11536
Cadw reference
23458

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 1896 map "Sheet 7. Ordnance Survey of England and Wales." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 106 Bangor (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 106 Bangor (Outline) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
  • 1919 · Sheet 41. Anglesey. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Viaduct on the disused Bethesda branch railway spanning the Afon Cegin immediately to the south of the new A 5 just to the east of Glasinfryn.

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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