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Cof Cymru: National Historic Assets of Wales · Wales

Railway Bridge at Former Llechwedd Sidings

Ffestiniog, Gwynedd, Wales

A Grade II listed building in Llechwedd Slate Mine, Ffestiniog, Gwynedd, designated on 1 February 1996.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Railway Bridge at Former Llechwedd Sidings, Ffestiniog, 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
1 February 1996
Locality
Llechwedd Slate Mine
Community
Ffestiniog
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.00328, -3.94334
Cadw reference
16886

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 1795 map "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).

Historical maps covering this location

  • 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)
  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 119 Snowdon (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

Near the S entrance of Blaenau railway tunnel, immediately W of the road on the downhill approach to the town from the Crimea Pass.

Description: Pair of cast-iron railway beam bridges, constructed 1879 when the Llechwedd slate mine established railway sidings to the E of the main railway track.. From here the slates were transported by rail to transhipment wharves at Deganwy. The bridges are heavily-rivetted and consist of 2 panels; the larger of the two spans the Afon Barlwydd at an angle and is approximately 6m long; that with the shallower beam spans a former tramway leading to a now disused incline. Originally carrying single tracks from the sidings to the main line, the rails have now been removed.

Listed as scarce examples of later C19 cast-iron beam bridges, and for group value with other listed items at the former Llechwedd sidings.

References: I. W. Jones, Llechwedd Slate Caverns, 1986, passim.
J.G. Isherwood, Slate From Blaenau Ffestiniog, 1988, 43.

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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