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Cof Cymru: National Historic Assets of Wales · Wales

Bridge W of Pont y Cleifion

Mawddwy, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
21 May 1974
Locality
Mallwyd
Town
Machynlleth
Community
Mawddwy
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.70003, -3.68632
Cadw reference
5186

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 1795 "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

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This record in Cadw's own full report ↗

Cadw's description

The bridge is alongside and on the W side of the high level bridge that carries the A470 over the Afon Cleifion, just N of the village of Mallwyd.

The bridge was built in 1637 by Dr John Davies, scholar and rector of Mallwyd, to carry the main N-S road up the Dyfi Valley to Dolgellau, it is said to have been re-worked in 1845, but this is not evident.

A single arched road bridge across the gorge of the Afon Cleifion, consisting of a single ring of 60cm radial voussoirs of local stone rubble with irregular backs, springing from the native rock confining the bed of the river. Flush spandrels and now no parapet. The arch rised 6.35m above the water and approximately 2.5m above the springing line, spanning approximately 6.6m, and is 2.95m wide, the top surfaced now grassed. It is said to bear the inscription JD and date.

Included as an early bridge of interest in that it has not been altered for modern traffic, thus remaining in its original C17 state.

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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