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Cof Cymru: National Historic Assets of Wales · Wales

Aberdulais Lock on Tennant Canal

Blaenhonddan, Neath Port Talbot, Wales

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

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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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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