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Cof Cymru: National Historic Assets of Wales · Wales

Pont-Rhythallt

Llanrug, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
27 August 1999
Locality
Pont-Rhythallt
Community
Llanrug
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.15106, -4.17772
Cadw reference
22252

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 1896 "Sheet 7. Ordnance Survey of England and Wales." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Located on the minor road between Llanrug and Penisa'r Waun, where it crosses the Afon Rhythallt.

Shown on the 1839 Tithe Map, the bridge was built in the early C19 and then extended to the north-east to cross the Padarn narrow gauge railway which opened in 1843; a further arch was constructed adjacent to the river to accommodate the standard gauge Llanberis to Caernarfon branch of the London & North Western Railway which opened in 1869. It appears that the arches and parapet of the original bridge were also reconstructed at this time.

Bridge. Regularly coursed and dressed snecked rubblestone with more irregularly coursed stonework to coped parapets above string. 3 semi-circular arches with red brick voussoirs above river, with another arch immediately adjacent over the former standard gauge railway, then continuing as causeway to north-east where there is a further arch over the former narrow gauge railway; abutments at each end of bridge.

Included as a substantial early C19 river bridge, constructed to a high standard and extended c.1843 in similar style to cross the adjoining narrow gauge railway, with further reconstruction in 1869 to accommodate the standard gauge railway. It thus documents an interesting development sequence in transport history in the region.

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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