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Pont Pen-y-benglog

A Grade II Listed Building in Llanllechid, Gwynedd

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Coordinates

Latitude: 53.1246 / 53°7'28"N

Longitude: -4.0204 / 4°1'13"W

OS Eastings: 264904

OS Northings: 360515

OS Grid: SH649605

Mapcode National: GBR 5V.71W7

Mapcode Global: WH54P.6QSF

Entry Name: Pont Pen-y-benglog

Listing Date: 9 March 2000

Last Amended: 9 March 2000

Grade: II

Source: Cadw

Source ID: 22944

Building Class: Transport

Location: Situated on the A 5 above the spectacular Pen-y-benglog falls at the narrow west end of Llyn Ogwen.

County: Gwynedd

Community: Llanllechid

Community: Llanllechid

Locality: Pen-y-benglog

Traditional County: Caernarfonshire

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History

The small late C18 bridge can be seen underneath the main bridge on its widened eastern side. This widening and rebuilding took place in 1928, before which the original bridge stood alongside the larger and taller bridge built by Thomas Telford in the 1820s as part of the turnpiking of the London to Holyhead road between 1815 and 1830. The original width of Telford's bridge can clearly be seen in the soffit of the present structure.

Exterior

The original bridge is the small single-span segmental-arched rubblestone structure on the eastern side, now denuded of its road surface. This was superseded by the larger and higher structure following the curve of the road immediately to its west (see History), built of irregularly coursed rubblestone with slate string course and slate coping to parapet; wide single-span segmental arch with voussoirs and very simple tapering pilaster buttresses to each side. The eastern side of this bridge is completely hidden by the mid-C20 widening on the eastern side directly above the small C18 bridge; the C20 work is of roughly coursed rubblestone, the arch following the shape of Telford's bridge to the west; string course and regular pilaster buttresses to straight parapet on this side.

Reasons for Listing

Included, notwithstanding the rebuilding on the eastern side, as a good example of a bridge on Thomas Telford's nationally important London to Holyhead road incorporating the remains of an earlier bridge below; provides a graphic illustration of the history and development of road building in this area.

Other nearby listed buildings

  • II Milestone
    Situated on the eastern side of the A 5 approximately 120m north-west of Pont Pen-y-benglog; set directly on road in low rubblestone field boundary wall.
  • II Cowhouse to east of Blaen-y-nant
    Located in isolated position approximately 180m east of the farmhouse at Blaen-y-nant on the western side of the Afon Ogwen in the Nant Ffrancon valley below the A 5; low rubblestone wall protects eas
  • II Stables at Pentre Farm
    Situated on hillslope immediately to south of Pentre Farmhouse.
  • II Pair of Cowhouses at Pentre Farm
    Located directly to east of farmhouse at Pentre Farm on opposite side of road, below which they are set, the upper parts of their south-west gable ends being approximately at road level.
  • II Pentre Farmhouse
    Remote roadside position on minor valley road running parallel with the A5 along the Ogwen valley; low rubblestone wall in front of farmhouse with stone-on-edge coping and iron gate and steps to centr
  • II Field Cowhouse
    Situated in isolated position below the A 5 to the east of the Afon Ogwen just off track running south from Braich-ty-du; the cowhouse is set within its own small field system, the boundaries of which
  • II Milestone
    Situated on the eastern side of the A 5 approximately 320m south-east of Braich-ty-du; set directly on road partly built into low rubblestone field boundary wall.

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