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Cof Cymru: National Historic Assets of Wales · Wales

Pont Ffynnon-gadfa

Llanystumdwy, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
31 March 1999
Locality
Pencaenewydd
Town
Criccieth
Community
Llanystumdwy
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.93639, -4.38178
Cadw reference
21597

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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 causeway bridge carries the road from Pencaenewydd over the Afon Erch, running to the SW of the village.

The bridge was probably built in the early- mid C19 to improve road communications in the county.

The bridge is part of a long stone-built raised causeway, approximately 94m long, over the marshy ground flanking the river. It is built of local rubble stone, carrying the road over the river by a simple segmental arch formed with rubble voussoirs springing from low abutments, and spanning 4.8m, rising 2.4m above the water. Flush parapets between the 5.45m wide carriageway, which is at 62m OD, and which curves to the S as it enters Llannor community at its W end.

Included as a good and unaltered example of the typical causeway bridge that was widely built in the Lleyn in the early C19.

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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