Latitude: 51.63 / 51°37'47"N
Longitude: -3.131 / 3°7'51"W
OS Eastings: 321813
OS Northings: 192954
OS Grid: ST218929
Mapcode National: GBR J0.8F55
Mapcode Global: VH6DN.P94B
Plus Code: 9C3RJVH9+XJ
Entry Name: Hall's Bridge, Railway Viaduct over River Ebbw and Western Valleys Railway Line
Listing Date: 23 December 1998
Last Amended: 23 December 1998
Grade: II
Source: Cadw
Source ID: 21008
Building Class: Transport
ID on this website: 300021008
Location: In Pont-y-Waun, near former Pont-y-Waun Junction, just S of Cwmcarn and adjacent to the Monmouthshire and Brecon Canal.
County: Caerphilly
Community: Abercarn
Community: Abercarn
Locality: Pont-y-Waun
Built-Up Area: Risca
Traditional County: Monmouthshire
Bridge built to span River Ebbw and the adjacent railway, the Western Valley Line, adapted later C20 to span also the by-pass E of river. Tramroad Line built by Benjamin Hall along the W side of the Ebbw 1814 . Great Western Region Western Valley Line built c 1850 adjacent. The tramway appears on OS First Edition map 1886 running W of the Western Valley line and crossing the river to E at Pont-y-Waun, the Western Valley line continuing along the W bank. The original river crossing of stone and timber was roughly at right angles and is shown thus both on the First Edition OS Map and the Tithe Map of 1846 and the remains of an abutment of this first bridge still exists just to N on E side. The crossing was altered to a c 45 degree angle for the later railway and photographs exist showing both the timber supports for construction of the new stone piers and the two bridges temporarily co-existing and crossing each other towards the W bank. On Second Edition OS map of 1902 the railway appears as the Great Western Region Pennar Branch, with both lines still shown though the new line apparently in use, suggesting perhaps a c 1900 upgrading of the bridge. Masonry piers were constructed to allow for doubling the line but only a single track was ever laid. Deck is still maintained with stone chippings as a footpath. Benjamin Hall the elder was the son-in-law of Richard Crawshay Ironmaster of Cyfarthfa who bought the Abercarn estate for him in 1808; his son also Benjamin Hall became First Commissioner of Works 1855-8 and gave his name to Big Ben. Created a baronet by Queen Victoria in 1859, he became Lord Llanover.
A plate girder bridge supported on high wide and narrow piers of snecked rockfaced stone spanning road, river and railway. 8 piers in all stretching from the deep railway cutting W to continuation of the line at canal level E of the by-pass, the pier to E being a replacement probably a result of the road construction. The stone has dressed arises and many stones are drilled and fixed to a core. Single track deck across the wider piers of riveted metal plates with cross-braced supports beneath. Open parapet of L-shaped uprights and 3 rows of tubular bars; altered E bay.
Listed for its interest in the history of railway engineering in the Western Valley and as an example of standard late C19 railway technology here used on a grand scale and largely unaltered since. Group value with nearby Railway Bridge.
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.
Other nearby listed buildings