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Latitude: 51.7458 / 51°44'44"N
Longitude: -3.6082 / 3°36'29"W
OS Eastings: 289067
OS Northings: 206459
OS Grid: SN890064
Mapcode National: GBR HC.173C
Mapcode Global: VH5GC.DDV0
Plus Code: 9C3RP9WR+8P
Entry Name: Pontwalby Railway Viaduct
Listing Date: 18 September 2003
Last Amended: 18 September 2003
Grade: II
Source: Cadw
Source ID: 81856
Building Class: Transport
Also known as: Pontwalby Railway Viaduct (partly in Blaengwrach community)
ID on this website: 300081856
Location: On the S side of Pontwalby, the viaduct spanning the Nant Gwrelych.
County: Neath Port Talbot
Town: Neath
Community: Glynneath (Glyn-nedd)
Community: Blaengwrach
Locality: Pontwalby
Built-Up Area: Glyn-neath
Traditional County: Glamorgan
Tagged with: Viaduct Railway viaduct
Railway viaduct built to carry the Vale of Neath broad gauge double track over Nant Gwrelych at Pontwalby. The Act for the railway from Neath to Aberdare (with a branch to Merthyr) was passed in 1846 and construction began shortly after with I K Brunel as the engineer. The line to Aberdare was opened to goods and passengers in 1851 and the Merthyr branch from Gelli Tarw Junction in 1853.
Railway viaduct, squared sandstone blocks with tooled angles and voussoirs. Five broad round arches with big cut stone voussoirs and red brick soffits carried on massive tapering piers, the tallest over 18m high. Each pier is divided on axis of viaduct by a tall arched opening with stone voussoirs. Bull nosed string course under parapet with flat stone coping. Fifth arch to SW has been blocked in stone with big open roundel in stonework with brick surround.
Included as particularly fine railway viaduct designed by I K Brunel.
External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.
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