Full Report for Listed Buildings
The list description is not intended to be a complete inventory of what is listed: it is principally intended to aid identification. By law, the definition of a listed building includes the entire building (i) and any structure or object that is fixed to the said building and ancillary to it and (ii) any other structure or object that forms part of the land and has done so since before 1 July 1948, and was within the curtilage of the building, and ancillary to it, on the date on which said building was first included in the list, or on 1 January 1969, whichever was later.
Summary Description
Reference Number
22944
Building Number
Grade
II
Status
Designated
Date of Designation
09/03/2000
Date of Amendment
09/03/2000
Name of Property
Pont Pen-y-benglog
Address
Location
Unitary Authority
Gwynedd
Community
Llanllechid
Town
Locality
Pen-y-benglog
Easting
264904
Northing
360515
Street Side
Location
Situated on the A 5 above the spectacular Pen-y-benglog falls at the narrow west end of Llyn Ogwen.
Description
Broad Class
Transport
Period
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 This was superseded by the larger and higher structure following the curve of the road immediately to its west (see History), built of irregularly coursed rubblestone with slate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.
Interior
Reason for designation
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.
Cadw : Full Report for Listed Buildings [ Records 1 of 1 ]
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