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Aberdulais Viaduct (partly in Tonna community)

A Grade II Listed Building in Tonna, Neath Port Talbot

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Coordinates

Latitude: 51.6787 / 51°40'43"N

Longitude: -3.7758 / 3°46'32"W

OS Eastings: 277314

OS Northings: 199263

OS Grid: SS773992

Mapcode National: GBR H4.5DYY

Mapcode Global: VH5GN.H2QF

Entry Name: Aberdulais Viaduct (partly in Tonna community)

Listing Date: 26 November 2003

Last Amended: 26 November 2003

Grade: II

Source: Cadw

Source ID: 82076

Building Class: Transport

Location: Spanning the Afon Nedd S of the Aberdulais Aqueduct and N of Dulais Fach Road.

County: Neath Port Talbot

Town: Neath

Community: Tonna

Community: Blaenhonddan

Locality: Aberdulais

Built-Up Area: Neath

Traditional County: Glamorgan

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Neath

History

The Vale of Neath Railway was incorporated in 1846 and opened in 1851. Engineered by Isambard Kingdom Brunel, the line was built to a broad gauge. The Aberdulais viaduct, like many others designed by Brunel, was originally constructed of timber with stone abutments, with the intention of rebuilding in stone at a later date. In the event the bridge was not rebuilt in stone until the late C19, after it was absorbed into the GWR in 1861.

Exterior

Railway viaduct, 5-bays of which 4 span the River Neath, and a 5th bay on the W side spans Station Road. The abutments, belonging to the original bridge opened in 1851, are of coursed hammer-dressed sandstone, while the later arches and parapet are of snecked, rock-faced stone with blue-brick arches. The piers have V-shaped cutwaters with pyramidal caps. Beneath the parapet is a thick projecting blue-brick band. The flat coping is of large bricks. The abutments are battered (with a concave profile beneath the deck) and are splayed outwards to retain an embankment. The abutments also retain vertical slots which housed the original timberwork of Brunel's bridge. The deck carries a single track.

Reasons for Listing

Listed for its industrial archaeological interest as a railway bridge designed in 2 phases, the original wooden structure having been replaced by the present stone bridge but incorporating the original abutments. Group value with Aberdulais Aqueduct.

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