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Cof Cymru: National Historic Assets of Wales · Wales

Aberdulais Lock on Tennant Canal

Blaenhonddan, Neath Port Talbot, Wales

A Grade II listed building in Aberdulais, Neath, Blaenhonddan, Neath Port Talbot, designated on 29 January 1980.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Aberdulais Lock on Tennant Canal, Blaenhonddan, 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
29 January 1980
Locality
Aberdulais
Town
Neath
Community
Blaenhonddan
Unitary authority
Neath Port Talbot
Country
Wales
Coordinates
51.67879, -3.77669
Cadw reference
11836

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 1636 map "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 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)
  • 1865 · England and Wales. England No. 6. (David Rumsey Map Collection, Stanford Libraries)
  • 1891 · Sheet 10. Ordnance Survey of England and Wales. . (David Rumsey Map Collection, Stanford Libraries)
  • 1897 · 247 Swansea (Hills) (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

On the W bank of the Afon Nedd between the Tennant Canal and the Aberdulais Aqueduct.

Canal lock, c 1823, the only one on the main line of the Tennant canal. Engineered by William Kirkhouse, the Tennant canal was begun in 1821 and the aqueduct across the River Neath at Aberdulais was begun in 1823. The canal opened in 1824 from the Neath Canal at Aberdulais to Port Tennant, Swansea.

Lock chamber with parallel walls of coursed stone. Wooden lower lock gates survive intact. Rebate of upper lock gates remains but is replaced by a wall.

Included as the only lock on the main line of the Tennant Canal and as part of a group of canal structures at Aberdulais of special architectural and historic interest.

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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