Pont Aberhiriarth is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 5 August 2004. Bridge.
Pont Aberhiriarth
- WRENN ID
- tangled-corner-mint
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 5 August 2004
- Type
- Bridge
- Address
- Pont Aberhiriarth, Cwm Llinau, Glantwymyn
- OS grid reference
- SH 844 069
- Coordinates
- 52.64805, -3.70902
- Source
- Cadw listing
Description
Pont Aberhiriarth is a single-span bridge built from large blocks of coursed grey stone. It features a high round arch made of stone voussoirs, complete with a raised keystone and an impost band. The spandrels are flush, and there is a string course leading to the random stone parapets, which have replaced the original flat capstones. The bridge has splayed ends with square end piers that rise slightly higher than the parapets and are topped with shallow pyramidal capstones. A rubble stone wall continues to the southeast.
Local climate
Pont Aberhiriarth sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 92% 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 46 freeze-thaw cycles a year, more than 87% of listed buildings. Of these, 26 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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