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Cof Cymru: National Historic Assets of Wales · Wales

Railway Viaduct (partly in Llandygai community)

Bangor, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
2 August 1988
Locality
Maesgeirchen
Community
Bangor
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.21761, -4.11616
Cadw reference
4133

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

SE of Bangor on Boundary with Llandegai Community. Carrying the Chester to Holyhead main line over the Afon Cegin. Reached along the footpath (dismantled railway) N off the Llandegai to Minffordd road.

The Chester to Holyhead railway was proposed to improve links with Ireland. The bill was passed in July 1844 with Robert Stephenson as engineer and Francis Thompson of Derby as architect. This viaduct is likely to be by Stephenson with assistance from Mr Foster the resident engineer for this stretch of the line. Opened 1st May 1848 and taken over by LNWR in 1859. From 1879 to 1963 the Penrhyn Quarry Railway passed underneath on the E bank of the river before joining with the LNWR Port Penrhyn branch line.

7-semicircular arches. Rock faced and heavily tooled red sandstone masonry with rusticated voussoirs and quoins. Brick soffits to the arches and plinths and freestone impost bands to each pie; cornice and plain parapet. The end piers slightly project and those flanking the river have ramped brick bases.

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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