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Cof Cymru: National Historic Assets of Wales · Wales

Four-Arch Aqueduct over Vyrnwy Flood Plain (Northern Arches) New Bridge Vyrnwy

Carreghofa, Powys, Wales

The record

Designation
Listed building, Grade II
Broad class
Water Supply and Drainage
Date of designation
5 April 1993
Community
Carreghofa
Unitary authority
Powys
Country
Wales
Coordinates
52.77216, -3.10842
Cadw reference
14203

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

Sited between Carreghofa Locks and B4398 road which crosses the Montgomeryshire Canal at Williams Bridge.

Designed by John Dadford, canal engineer of Cardiff, between 1794-6, partly rebuilt by Shropshire Union Railway and Canal Company about 1890 with metal tie-rods and brick arch-linings.

Squared stone cappings and quoins, rubble facings, four round (rebuilt) blue brick arches with arch rings meeting (on both sides) at low, stepped cutwaters with pryamidal tops. Outer ends checked forward with curved abutments sloping down to low brick piers. Paired oval brace-plates to haunches of each arch.

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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