Pont Llwni (Partly in Llanllwni Community, Carmarthenshire) is a Grade II listed building in the Ceredigion local planning authority area, Wales. First listed on 21 September 1964. Bridge.

Pont Llwni (Partly in Llanllwni Community, Carmarthenshire)

WRENN ID
eastward-basalt-blackthorn
Grade
II
Local Planning Authority
Ceredigion
Constituency
Ceredigion Preseli MP: Ben Lake (PC)
Country
Wales
Date first listed
21 September 1964
Type
Bridge
Address
Pont Llwni (Partly in Llanllwni Community, Carmarthenshire), Maesycrugiau, Llandysul
OS grid reference
SN 472 412
Coordinates
52.04887, -4.22943
Source
Cadw listing

Also on this page: EPC · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Pont Llwni is a road bridge that spans the Afon Teifi. It features rubble stone construction and has a single segmental arch, along with a smaller flood arch to the north. Both arches are set in slightly recessed stonework. On the eastern side, there is a small cutwater between the arches, while the western side has a plain stone pier. The arch is made up of rough stone voussoirs. The bridge has rubble parapets topped with stone coping, and the end stones of the upstream parapet display a raised coffin motif, similar to those found on children's graveslabs.

Local climate

Pont Llwni (Partly in Llanllwni Community, Carmarthenshire) sits in one of the wettest parts of the UK, with an average of 1,270 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 54% of listed buildings. Of these, 17 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

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