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
82446
Building Number
Grade
II
Status
Designated
Date of Designation
30/01/2004
Date of Amendment
30/01/2004
Name of Property
Pontwalby Railway Viaduct (partly in Blaengwrach community)
Address
Location
Unitary Authority
Neath Port Talbot
Community
Glynneath
Town
Neath
Locality
Easting
289065
Northing
206458
Street Side
Location
On the S side of Pontwalby, the viaduct spanning the Nant Gwrelych.
Description
Broad Class
Transport
Period
History
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.
Exterior
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.
Interior
Reason for designation
Included for its special interest as particularly fine railway viaduct designed by I K Brunel, the renowned Victorian engineer.
Cadw : Full Report for Listed Buildings [ Records 1 of 1 ]
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