British Listed Buildings

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Dolauhirion Bridge, Llandovery

Description: Dolauhirion Bridge

Grade: I
Date Listed: 3 August 1966
Cadw Building ID: 16996

OS Grid Coordinates: 276206, 236100
Latitude/Longitude: 52.0091, -3.8039

Location: Llandovery, Carmarthenshire, United Kingdom SA20 0TU

Locality: Llandovery
County: Carmarthenshire
Country: Wales
Postcode: SA20 0TU

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There is also a scheduled monument, Dolau-Hirion Bridge, at the same location as this building or very close to it. This may be related in some way or possibly a different name for the same structure.

Listing Text

Situated some 1.5km of Llandovery, carrying road to Cilycwm and Porthrhyd across River Tywi.

Road bridge across the Tywi, built in 1773 by Thomas Edwards, and one of the outstanding surviving works of the bridge-building Edwards family of Pontypridd. This bridge has the weight-reducing pierced spandrels that Thomas' father the Rev William Edwards introduced at Pontypridd in 1756, one of the very few post-Roman advances in masonry bridge building. This is perhaps one of the most elegant of the surviving Edwards bridges, the very broad elliptical arch rising to a thin crown. Although marked 'Thomas Edward 1773', the bridge was attributed by Thomas Rees writing in 1815 and Samuel Lewis in 1833 to William Edwards, and A Arber-Cooke records that it has also been dated 1785.


Road bridge, rubble stone single arch of some 25m span and 3.6m width rising high above the Tywi from natural rock abutments. The single broad elliptical arch has large cut stone voussoirs, and the spandrels have masonry in very thin courses and are pierced with large circular holes also with cut stone voussoirs. The abutments are stepped out slightly and splayed. Humped roadway with ramped parapets of rather cruder masonry than the bridge, with stone slab coping stones. In centre of S parapet a slate coping stone marked 'Thomas Edward 1773'.

Reason for Listing
Included at Grade I as an outstanding example of the revolutionary bridge designs evolved by the Rev. William Edwards and his sons in the later C18.

Scheduled Ancient Monument: CM005

E. Jervoise, The Ancient Bridges of Wales and W. England, 1976, p 73;
A.T. Arber-Cooke, Pages from the History of Llandovery, 1976, 1, pp 400-1.

This text is a legacy record and has not been updated since the building was originally listed. Details of the building may have changed in the intervening time. You should not rely on this listing as an accurate description of the building.

Source: Cadw

Listed building text is © Crown Copyright. Reproduced under licence.