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Cof Cymru: National Historic Assets of Wales · Wales

Knucklas Railway Viaduct

Beguildy, Powys, Wales

A Grade II* listed building in Knucklas, Beguildy, Powys, designated on 8 November 1985.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Knucklas Railway Viaduct, Beguildy, Powys, 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
8 November 1985
Locality
Knucklas
Community
Beguildy
Unitary authority
Powys
Country
Wales
Coordinates
52.36111, -3.10290
Cadw reference
9345

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)
  • 1637 · Particular description of Wales. Cambria seu Wallia (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 180 Knighton (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 14. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Spanning the valley on the W of the village.

On a section of the Central Wales Railway built by the LNWR 1862-4, and opened for passenger traffic from Knighton to Llandrindod Wells in 1865. The engineer was Henry Lote.

A 13-bay viaduct of snecked, rock-faced stone. Tapering piers, the quoins of which are partly rebuilt in blue brick, carry round arches. The corbelled parapet has battlements with saddleback copings. Abutments have higher round turrets with blind arrow loops and corbelled, embattled parapets. Lower terminal square piers have similar detail.

Listed grade II* as a striking railway viaduct with architectural embellishment that celebrates the heroic achievements of C19 civil engineering.

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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