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Cof Cymru: National Historic Assets of Wales · Wales

Pont Wrysgen

Mawddwy, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
4 November 1999
Locality
Cwm Cewydd
Town
Machynlleth
Community
Mawddwy
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.70362, -3.67342
Cadw reference
22579

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

The bridge carries the main A458 Mallwyd to Welshpool Road over the Afon Cleifion, SW of Cwm Cewydd.

Built probably in the mid C19 to provide a level crossing of the river at this point.

Built of coursed squared rubble, with a single large semi-circular arch of flush even shale voussoirs springing from native rock and rising to a keystone. Flush spandrels and projecting string course, and a parapet of flat coping stones. The abutments are slightly battered and end in demi-piers. The arch spans approximately 10.7m, rising 6.2m above the river, and carries a carriageway 5.5m wide with 53cm parapets.

Included as a robust and characterful C19 road bridge, one of a series of such bridges carrying the main road over small deep valleys of tributaries of the Afon Dugoed.

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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