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Pont Penprys

A Grade II Listed Building in Llannor, Gwynedd

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Latitude: 52.9287 / 52°55'43"N

Longitude: -4.4576 / 4°27'27"W

OS Eastings: 234900

OS Northings: 339634

OS Grid: SH349396

Mapcode National: GBR 58.MHMH

Mapcode Global: WH449.HNJ5

Entry Name: Pont Penprys

Listing Date: 19 October 1971

Last Amended: 8 February 1999

Grade: II

Source: Cadw

Source ID: 4330

Building Class: Transport

Location: The bridge lies c900m NNW of Pentreuchaf, and carries the road from Y Ffor W over the Afon Llannor.

County: Gwynedd

Town: Pwllheli

Community: Llannor

Community: Llannor

Locality: Pentreuchaf

Traditional County: Caernarfonshire

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The bridge was probably built c1800 for the turnpike trust, as part of the general improvements to county roads being carried out in the late C18 and early C19.


The bridge is part of a short raised causeway carrying the road over a narrow section of the Llannor valley. A single segmental arch spanning c4.65m formed with inset rubble voussoirs below a regulating course, rising 2.2m above the river, flush rubble spandrels and undifferentiated parapet with large coping stones. The carriageway is 4.6m wide, approximately level, and has parapets 45cm thick, turning out at the ends.

Reasons for Listing

Included as a good example of a late C18 or early C19 road bridge.

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 Milestone by Tuhwnt i'r Gors
    Situated on N side of B4354, some 3 km E of junction with A 497.
  • II Pont-y-pandy and causeway
    The bridge carries the minor road from Pentreuchaf to the W, over the Afon Llannor by a long curved causeway.
  • 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 Llannerch
    The farm lies on a minor road leading off the road between Llannor and Pentreuchaf.

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