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Cof Cymru: National Historic Assets of Wales · Wales

Lake Vyrnwy Dam Memorials

Llanwddyn, Powys, Wales

The record

Designation
Listed building, Grade II
Broad class
Commemorative
Date of designation
26 February 2003
Locality
Lake Vyrnwy Dam
Community
Llanwddyn
Unitary authority
Powys
Country
Wales
Coordinates
52.76278, -3.45399
Cadw reference
80917

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 1608 "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Set into a partially artificial rockface at the north-east end of the Vyrnwy Dam, overlooking the dam road.

The first plaque is that at the centre, sited on the centreline of the dam road. It commemorates the laying of the first stone of the dam by the Rt. Hon. Edward James, third Earl of Powis on the 14th of July 1881. The work was to the design of Thomas Hawksley and George Frederick Deacon, under the Act authorising Liverpool Corporation to construct the Vyrnwy Waterworks which received Royal Assent in August 1880.

To right and left are plaques commemorating further works on the reservoir and its systems of aqueducts completed in 1910 and 1938.

Three bronze plaques of similar size each set into a slab of granite and framed in slate.

An important memorial explaining one of the finest landscape achievements of Victorian Britain, listed also for group value with the Grade I Vyrnwy Dam.

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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