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Pont-y-pandy and causeway

A Grade II Listed Building in Llannor, Gwynedd

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Latitude: 52.9211 / 52°55'15"N

Longitude: -4.4503 / 4°27'0"W

OS Eastings: 235367

OS Northings: 338772

OS Grid: SH353387

Mapcode National: GBR 58.N5F7

Mapcode Global: WH449.MV10

Entry Name: Pont-y-pandy and causeway

Listing Date: 8 February 1999

Last Amended: 8 February 1999

Grade: II

Source: Cadw

Source ID: 21332

Building Class: Transport

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

County: Gwynedd

Town: Pwllheli

Community: Llannor

Community: Llannor

Locality: Pentreuchaf

Traditional County: Caernarfonshire

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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.

Reasons for Listing

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

Other nearby listed buildings

  • II Hay Barn at Mela
    Mela farm lies approximately 800m directly WSW of Pentreuchaf crossroads. The hay barn stands to the N of the farmhouse.
  • II Llannerch
    The farm lies on a minor road leading off the road between Llannor and Pentreuchaf.
  • II Pont Penprys
    The bridge lies c900m NNW of Pentreuchaf, and carries the road from Y Ffor W over the Afon Llannor.
  • II Gwnhinger
    Situated some 1.3 km N of the A497, down lane from Bodvel Hall, some 1.7 km ESE of Boduan Church.
  • II* Church of the Holy Cross
    The parish church stands at the centre of the village, within an oval churchyard.
  • II Milestone by Tuhwnt i'r Gors
    Situated on N side of B4354, some 3 km E of junction with A 497.

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