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Cof Cymru: National Historic Assets of Wales · Wales

Former railway bridge at Bontnewydd

Bontnewydd, Gwynedd, Wales

A Grade II listed building in Bontnewydd, Caernarfon, Gwynedd, designated on 29 July 1997.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Former railway bridge at Bontnewydd, 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
29 July 1997
Locality
Bontnewydd
Town
Caernarfon
Community
Bontnewydd
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.11547, -4.27405
Cadw reference
18618

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 1883 map "Watershed map England, Wales 3." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 105 Carnarvon (Hills) (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

Crossing the Afon Gwyrfai and a minor road to Llanfaglan, some 400m W of the A487 in the centre of Bontnewydd.

Railway bridge possibly of c1867 over Afon Gwyrfai and road to Llanfaglan. The Caernarfon to Afonwen Railway opened in 1867, built by Thomas Savin partly on the earlier Nantlle narrow gauge railway, but this railway crossed the river on a different site according to 1842 Tithe Map.

Large triple-arched railway bridge in rock-faced squared stone with broad brick segmental arches. Arches have five courses of brickwork. Two big piers, low parapets.

Listed as a well-detailed example of a large mid-C19 railway 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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