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Cof Cymru: National Historic Assets of Wales · Wales

Bont-ar-Towy (partly in Llansadwrn community)

Llangadog, Carmarthenshire, Wales

A Grade II* listed building in Llangadog, Carmarthenshire, designated on 19 July 1999.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Bont-ar-Towy (partly in Llansadwrn community), Llangadog, Carmarthenshire, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II*
Broad class
Transport
Date of designation
19 July 1999
Locality
Llangadog
Town
Llangadog
Community
Llangadog
Unitary authority
Carmarthenshire
Country
Wales
Coordinates
51.94073, -3.89945
Cadw reference
21995

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

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1860 map "41. Caermathen." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1860 · 41. Caermathen. (David Rumsey Map Collection, Stanford Libraries)
  • 1891 · Sheet 10. Ordnance Survey of England and Wales. . (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 212 Llandovery (Outline) (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 212 Llandovery (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 14. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Situated on A4069 about 1 km W of Llangadog, just E of junction with A40. Half of bridge is in Llansadwrn community.

Road bridge over the Towy carrying what was formerly a principal route to South Wales and Swansea. Rebuilt in 1818-19 by Act of Parliament. William Harries of Llandeilo was probably the designer, and the bridge cost £2,300.

Bridge, coursed rubble stone, of five arches overall. Main bridge has three broad segmental arches with flush cut stone voussoirs, small coursed stones in spandrels, and band under parapet. Raised piers above four triangular cutwaters each side with stepped triangular tops. Outer ones have decorative taller half-pyramid tops under finials of half sphere divided by horizontal square slab. Parapets are probably rebuilt though one has 1819 datestone. Rock-faced stone copings with raised ridged blocks each end.
E end has similar but plainer 2-arch bridge over flood plain with lower arches, triangular cutwaters to centre pier, small stones in spandrels but no band under parapets. Large raised piers at E end. Parapets at both ends of bridge continue and are splayed out.

Included as an exceptionally fine early C19 road bridge of large scale, unusually architecturally conceived.

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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