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Latitude: 51.6987 / 51°41'55"N
Longitude: -2.7023 / 2°42'8"W
OS Eastings: 351561
OS Northings: 200233
OS Grid: SO515002
Mapcode National: GBR JL.40ZN
Mapcode Global: VH87F.3KSL
Entry Name: Furnace Dam
Listing Date: 29 September 2000
Last Amended: 9 October 2001
Source ID: 24055
Building Class: Water Supply and Drainage
Location: Situated on the south side of the Devauden road about 50m south west of Furnace Farm.
Community: Tintern (Tyndyrn)
Locality: Old Furnace
Traditional County: Monmouthshire
This dam was constructed to provide power for the Tilting Mill which was probably immediately below it. Little is known about this mill but the dam is probably at least C18 in origin.
The dam is constructed of rubble sandstone walling with concrete abutment to far bank. The near end of dam has a low arch with elliptical head for the sluice. Two centre openings with rubble sides and varying sills to spillways. The fourth opening to far bank is now blocked with concrete and the rubble sides have collapsed downstream. The centre spillway has low parapets flanking the projecting ramp. The dam provides a 2-2.5m head of water in its current state. The dam is about 40m long and about 2.5m wide. Modern wooden bridge on top of dam.
Included as a 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.
Other nearby listed buildings