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Cof Cymru: National Historic Assets of Wales · Wales

Tramroad causeway and bridge at Hirwaun Ironworks

Hirwaun, Rhondda Cynon Taff, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
6 August 2002
Locality
Hirwaun
Town
Hirwaun
Community
Hirwaun
Unitary authority
Rhondda Cynon Taff
Country
Wales
Coordinates
51.74056, -3.50984
Cadw reference
26827

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1608 "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Crossing the Afon Cynon approximately 100m NE of St Lleurwg's church, on the N side of Station Road and S side of the former Hirwaun Ironworks.

Built 1806-8 by the engineer George Overton to replace an earlier bridge, sited immediately S of the present bridge, of a tramroad built in 1793, upon which raw materials were carried to the furnaces of Hirwaun ironworks and limestone was brought from the quarries at Penderyn.

A high single-track causeway approximately 100m in length, of snecked rubble, in parts rebuilt in coursed rubble. It crosses the Afon Cynon in a single span with segmental arch and narrow dressed-stone voussoirs. It is abutted on the R bank by coursed rubble revetments. The flat deck is a footpath retaining some stone sleeper blocks (overgrown at the time of inspection).

Listed for its industrial archaeological importance as an early example of railway engineering.
Scheduled Ancient Monument BR157

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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