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Glasinfryn Viaduct (partly in Llandygai community)

A Grade II Listed Building in Pentir, Gwynedd

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Coordinates

Latitude: 53.2001 / 53°12'0"N

Longitude: -4.1166 / 4°6'59"W

OS Eastings: 258712

OS Northings: 369089

OS Grid: SH587690

Mapcode National: GBR 5Q.2GGB

Mapcode Global: WH547.QTXM

Entry Name: Glasinfryn Viaduct (partly in Llandygai community)

Listing Date: 22 September 1997

Last Amended: 13 July 2004

Grade: II

Source: Cadw

Source ID: 18915

Building Class: Transport

Location: The viaduct lies approximately 100m E of the N end of the village of Glasinfryn.

County: Gwynedd

Town: Bangor

Community: Pentir

Community: Pentir

Locality: Glasinfryn

Traditional County: Caernarfonshire

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History

Built c1880 to carry the former Bangor to Bethesda Branch of the London and North-Western Railway across the deep valley of the Afon Cegin. It is now a footpath.

Exterior

The viaduct is of rock-faced coursed stone, and is laid out on a very distinct curve extending for some 120m. It consists of eight arches with a broad central semi-eliptical skewed arch having 5-ring dry-toothed blue brick voussoirs. The central arch is flanked by narrower semi-circular straight arches, four on one side and three on the other. A margin-dressed rock faced string course forms the base of a similar parapet of 5 courses, coped with hog-backed stone.

Reasons for Listing

Included as a fine example of railway engineering, of special interest as laid out on a curve.

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