Full Report for Listed Buildings
Summary Description of a Listed Buildings
Reference Number
13575
Building Number
Grade
II
Status
Designated
Date of Designation
09/01/1989
Date of Amendment
08/02/1999
Name of Property
Pandy Mawr Railway Arch
Address
Location
Unitary Authority
Caerphilly
Community
Bedwas, Trethomas and Machen
Town
Caerphilly
Locality
Pandy Mawr
Easting
316122
Northing
189481
Street Side
Location
The arch runs over the valley road leading N from Bedwas to Cwm y Bwch. Site of Bryngwyn Colliery to the SE.
Description
Broad Class
Transport
Period
History
Originally constructed for the Rumney Railway Co between 1824 and 1829. Converted from a tramroad by the Brecon and Merthyr Tydfil Junction Railway Co who opened a freight and passenger service in 1863. The style of the masonry suggests that it was rebuilt in the latter half of the C19, perhaps during 1863 to ease the curve of the new railway.
Exterior
Single, long, narrow arch for roadway supporting former railway embankments which rise high above. Round-headed arch rings to each portal. Rock-faced masonry voussoirs with keystones. Snecked facings to spandrels. Flanking raking buttresses with flat stone copings. Snecked masonry, without breaks, to long interior. Wide embankments at various levels formerly carried tramroad and railway lines through the Rhymney Valley.
Interior
Reason for designation
Listed as an unusual railway structure, the 1820s tramroad origins being of special interest.
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