Full Report for Listed Buildings
The list description is not intended to be a complete inventory of what is listed: it is principally intended to aid identification. By law, the definition of a listed building includes the entire building (i) and any structure or object that is fixed to the said building and ancillary to it and (ii) any other structure or object that forms part of the land and has done so since before 1 July 1948, and was within the curtilage of the building, and ancillary to it, on the date on which said building was first included in the list, or on 1 January 1969, whichever was later.
Summary Description
Reference Number
23817
Building Number
Grade
II
Status
Designated
Date of Designation
27/07/2000
Date of Amendment
27/07/2000
Name of Property
Three Arch Viaduct of former Merthyr, Tredegar and Abergavenny Railway
Address
Location
Unitary Authority
Monmouthshire
Community
Llanelly
Town
Locality
Clydach
Easting
322552
Northing
212516
Street Side
Location
Located some 0.5km SW of Clydach village, over steep gorge off SE side of Darrenfelen-Clydach by-road.
Description
Broad Class
Transport
Period
History
Built 1862 and widened 1877, forming part of the Merthyr, Tredegar and Abergavenny Railway. The Engineer was John Gardner (1821-1894), who has engineered the Staines and Wokingham Railway, and also the Nantwich and Market Drayton Railway, as well as having doubled the line between Abergavenny and Brynmawr. The company was set up in 1859, consisting largely of ironmasters including Crawshay Bailey of Nantyglo, Thomas Brown of Ebbw Vale and James Hill of Blaenavon. A local director was John Jayne of Pant-y-beiliau. First sod cut at Abergavenny on 18th June 1860 by Mrs Crawshay Bailey. By August 1860, 8 bridges were under construction, as well as the tunnels at Gellifelen. By 1861, the company was overdrawn, due to the high engineering costs. The London and North Western Railway took a 1000 year lease of the company, confirmed by Act in August 1862, by which time the line was operating from Abergavenny to Brynmawr. Brynmawr-Nantybwch section finished by March 1864. The rest of the line to the west was completed by 1879. In 1877 the line was doubled.
Exterior
Three arch viaduct over steep and narrow river gorge. Side abutments spring from steep sides of ravine. Rock-faced limestone construction, stone voussoirs to round arches. Rock-faced stringcourse, with rock-faced copings to low parapet.
Interior
Reason for designation
Listed as a major survival of later C19 railway engineering, the railway being important to the iron and coal industry of the eastern valleys of Wales. The viaduct is a prominent survival of the important industrial landscape of the Clydach Gorge.
Cadw : Full Report for Listed Buildings [ Records 1 of 1 ]
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