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Cof Cymru: National Historic Assets of Wales · Wales

Fish Pool Dam

Devauden, Monmouthshire, Wales

The record

Designation
Listed building, Grade II
Broad class
Water Supply and Drainage
Date of designation
29 September 2000
Locality
Pont-y-saeson
Town
Chepstow
Community
Devauden
Unitary authority
Monmouthshire
Country
Wales
Coordinates
51.69754, -2.71787
Cadw reference
24059

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

About 3000m west of Tintern Abbey beside the road to Devauden.

This dam was constructed to provide power for the Pont-y-saeson Forge which was about 500m below it. Little is known about this forge which may have begun functioning as early as 1675, but the dam is probably at least C18 in origin.

The dam is constructed of rubble sandstone walling. The upstream side has eight low arches with elliptical heads for the sluices. The downstream side has the spillways from these with an over-spill or fish ladder to the right. The dam provides a 3.5m head of water in its current state. The dam is about 20m long and about 2.5m wide. The crest of the dam has been rebuilt in the late C20 as a part of its current role as a fishing lake.

Included as a well preserved small mill dam dating possibly from the C18, and as a part of an important group of surviving relics of the metal industry in the Anghidy valley.

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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