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Cof Cymru: National Historic Assets of Wales · Wales

Pontrhydyfen Viaduct

Cwmavon, Neath Port Talbot, Wales

A Grade II listed building in Pontrhydyfen, Port Talbot, Cwmavon, Neath Port Talbot, designated on 21 March 2000.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Pontrhydyfen Viaduct, Cwmavon, Neath Port Talbot, 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
21 March 2000
Locality
Pontrhydyfen
Town
Port Talbot
Community
Cwmavon
Unitary authority
Neath Port Talbot
Country
Wales
Coordinates
51.63297, -3.74543
Cadw reference
23024

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)
  • 1636 · Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ... (David Rumsey Map Collection, Stanford Libraries)
  • 1637 · The fourth table of England. Cornub. Devonia, Somerset etc. (David Rumsey Map Collection, Stanford Libraries)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1865 · England and Wales. England No. 6. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Long viaduct spanning the Afan valley where the river curves round towards the S, and the road which leads from Cwmavon to Pontrhydyfen.

Built as part of a branch line by the Port Talbot Railway and Docks Co. to link the docks with the coal producing areas to the N. The viaduct crosses the Afan valley, beyond which the line joined the South Wales Mineral Railway. It was constructed in 1897-8 by the contractors Topham, Jones and Railton, and was absorbed soon afterwards by the GWR. It closed in 1964.

Ten-arch railway viaduct of red brick, curving round slightly towards the NW. Tall round arches on narrow splayed piers, the arches consisting of 6 rows of headers on edge. Short abutments at either end. Blue brick string course and red brick parapets with corbelled refuges rising from the spandrels of the arches. The coping is generally of blue bricks on end, replaced in concrete in some areas. The flat deck is now a path and the refuges have been infilled with blue brick with concrete coping. At each end of the deck are pairs of short piers marking the abutments. These and the areas between have massive rock-faced capstones.

Listed as a largely unaltered viaduct of architectural merit which is highly visible and imparts considerable character to the area. The association with Port Talbot docks is of additional historic interest. Group value with Bont Fawr aqueduct.

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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