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Cof Cymru: National Historic Assets of Wales · Wales

Pont y Porthmyn

Llanycil, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
22 October 2001
Locality
Pont Rhyd-y-Fen
Community
Llanycil
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.94235, -3.78206
Cadw reference
25809

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 1608 "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Spanning a stream some 30m N of the road, and some 50m E of Pont Tai Hirion.

Vernacular regional bridge perhaps medieval; formerly carrying a track or road now lost but apparently formerly leading to Ysbyty Ifan where the Knights Hospitallers had a commandary. Edward Lhuyd mentions the bridge in the 1690s as 'Pont Rhyd y Porthnyn.' The name links the bridge with cattle droving.

Single-span vernacular bridge with rough-dressed voussoirs to a depressed pointed arch. There are no parapets (and probably never were).

Listed as a possibly C17 regional bridge retaining original character, a rare survivor of an early vernacular bridge.

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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