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Cof Cymru: National Historic Assets of Wales · Wales

Pont Nant-yr-ehedydd

Mawddwy, Gwynedd, Wales

A Grade II listed building in Cwm Cewydd, Machynlleth, Mawddwy, Gwynedd, designated on 4 November 1999.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Pont Nant-yr-ehedydd, Mawddwy, Gwynedd, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
4 November 1999
Locality
Cwm Cewydd
Town
Machynlleth
Community
Mawddwy
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.70120, -3.62475
Cadw reference
22602

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 150 Dinas-Mawddwy (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

The bridge takes a hairpin bend of the A458 Mallwyd to Welshpool trunk road over the ravine of the Afon Clywedog, near its junction with the Afon Dugoed.

The bridge was probably built in the mid C19 to carry the road on an even grade over the gorge of the river.

The bridge is built with local coursed shale and stone. The stilted semi-circular single arch is formed with flush even shale voussoirs rising to a keystone, flush spandrels and horizontal string, with a parapet. It spans approximately 6m, and carries a carriageway 5.5m wide with parapets of 50cm each side.

Included as a typical well preserved bridge in a dramatic setting, part of the main road improvements that took place during the C19.

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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