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‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

NW portal of Conwy Railway Tunnel

Conwy, Conwy, Wales

The record

Designation
Listed building, Grade II
Broad class
No class recorded
Date of designation
30 December 2005
Locality
Mount Pleasant
Town
Conwy
Community
Conwy
Unitary authority
Conwy
Country
Wales
Coordinates
53.28110, -3.83247
Cadw reference
87448

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

In a deep cutting directly beneath the NW side of Mount Pleasant.

On the Chester & Holyhead Railway, and built in 1845. Its chief engineer was Robert Stephenson, and contractor for the Conwy section was John Evans. Conwy tunnel was the site where the ceremonial first sod of the railway was cut on St David's Day, 1845. This section of the line opened in 1846.

The portal is of snecked rock-faced stone across a deep cutting, with flanking battered buttresses. Above the round arch is a corbel table and parapet. The parapet has a saddleback coping of tooled stone. It is splayed to the S bank where a rectangular terminal pier has a rock-faced cap (partly overgrown at the time of survey). A similar pier is on the N side (but obscured by vegetation at the time of inspection).

Listed for its special interest as a tunnel portal of definite mid C19 architectural character, one of a number of items contributing to the overall historical integrity of this section of the former Chester & Holyhead Railway.

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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