Pont Pantysgallog (partly in Llywel community) is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 25 September 1951. Bridge.

Pont Pantysgallog (partly in Llywel community)

WRENN ID
strange-bonework-curlew
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
25 September 1951
Type
Bridge
Address
Pont Pantysgallog (partly in Llywel community), Cray, Powys
OS grid reference
SN 903 291
Coordinates
51.95025, -3.59687
Source
Cadw listing

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

Description

Pont Pantysgallog is a road bridge made of rubble stone, featuring cut-stone voussoirs that form a single broad and high arch over the river. The bridge has an exceptionally narrow crown, with a humped roadway. The carriageway is narrow, flanked by rubble stone parapets that splay outward at each end, topped with flat stone coping.

Local climate

Pont Pantysgallog (partly in Llywel community) sits in one of the wettest parts of the UK, with an average of 1,300 mm of rain a year. This makes it wetter than 95% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 28 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.

More on this building

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  • Flood risk assessment
  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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