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‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

Pont-y-pandy and causeway

Llannor, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
8 February 1999
Locality
Pentreuchaf
Town
Pwllheli
Community
Llannor
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.92106, -4.45028
Cadw reference
21332

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 1830 "V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40" (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The bridge carries the minor road from Pentreuchaf to the W, over the Afon Llannor by a long curved causeway.

Probably built in the early-mid C19 at the time of general improvements to the roads within the county.

The bridge is built of local rubble stone. A segmental arch formed with flush voussoirs between twice offset buttresses, with a horizontal string course between the heads of the top offset. The span is c3.5m, the arch rising c1.9m and the carriageway is 4m wide between the 1.2m high parapets, each 30cm thick, and which are rendered on the inner (road) side, and continue as parapets to the causeway each side.

Included as an unusual bridge, part of a long curved causeway across the valley and marshland associated with the river.

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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