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Cof Cymru: National Historic Assets of Wales · Wales

Horseshoe Falls (partly in Llantysilio community)

Llangollen, Denbighshire, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
22 December 1989
Locality
Berwyn
Community
Llangollen
Unitary authority
Denbighshire
Country
Wales
Coordinates
52.98131, -3.20042
Cadw reference
1237

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 1795 "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

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This record in Cadw's own full report ↗

Cadw's description

On the northern boundary of Llangollen Community. In a bend in the River Dee at the start of the Llangollen canal.

The Horseshoe Falls were constructed by the renowned engineer Thomas Telford contemporary with the Llangollen canal begun in 1804 and completed in 1808. The falls were essential to the efficient operation of a complicated and heavily used canal network and represent one of the first river regulation schemes anywhere in Britain. Water was drawn off the fast flowing River Dee into the canal which acted principally as a feeder for the Ellesmere Canal. Today 6 million gallons a day are metered into the canal. The falls are more J-shaped than horseshoe so the name may refer to the horseshoe like bend in the river.

460 ft long masonry weir sloped down to a 4 ft vertical face with cast-iron capping to the crest. The canal water is drawn off on a high level channel to N.
Sluice gate midway along has been removed; the channel curves left under a modern footbridge and then culverted under modern pumphouse into the canal.

Partly in Llantysilio Community.

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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