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Cof Cymru: National Historic Assets of Wales · Wales

Clydach Aqueduct on Tennant Canal

Dyffryn Clydach, Neath Port Talbot, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
22 December 2003
Locality
Neath Abbey
Town
Neath
Community
Dyffryn Clydach
Unitary authority
Neath Port Talbot
Country
Wales
Coordinates
51.66023, -3.82483
Cadw reference
82339

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

Situated crossing the River Clydach just SE of Neath Abbey ruins.

Canal aqueduct built 1821 to carry the Tennant Canal over the River Clydach. The engineer was William Kirkhouse and the associated sluices on the SW side were part of the ill-fated Neath floating dock scheme. The canal opened in 1824 from the Neath Canal at Aberdulais to Port Tennant, Swansea. Traffic declined from the 1860s due to competition with railways but the canal did not close to commercial traffic until 1934.

Canal aqueduct, rubble stone, two arches with cutwater between. Arches are segmental with thin stone voussoirs. On S side are rubble stone parapets with coping of curved slag blocks to centre and abutments splayed out each side in quadrant curves. To W is sluice gate with sandstone steps through right angle to river and rusticated pillars. No parapets on N side which is heavily repaired with cement.

Included as a major historic feature of an important Welsh canal.

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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