Pont Nantyrharn is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 25 May 2001. Bridge.
Pont Nantyrharn
- WRENN ID
- little-ashlar-dew
- 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 May 2001
- Type
- Bridge
- Address
- Pont Nantyrharn, Cray, Powys
- OS grid reference
- SN 892 263
- Coordinates
- 51.9242, -3.61161
- Source
- Cadw listing
Description
Pont Nantyrharn is a road bridge constructed of rubble stone. It features a large single arch made with recessed tooled stone voussoirs and a keystone, supported by slightly raised abutments. There is a raised string course located beneath the rubble stone parapets, which are splayed out at the western end.
Local climate
Pont Nantyrharn sits in one of the wettest parts of the UK, with an average of 1,410 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.
It experiences an average of 55 freeze-thaw cycles a year, more than 95% of listed buildings. Of these, 31 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- 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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