Pont Gwanas is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 19 June 1990. Terrace.
Pont Gwanas
- WRENN ID
- hidden-vault-jackdaw
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 June 1990
- Type
- Terrace
- Address
- Pont Gwanas, Brithdir and Llanfachreth, Gwynedd
- OS grid reference
- SH 768 167
- Coordinates
- 52.73471, -3.82571
- Source
- Cadw listing
Description
Pont Gwanas is a bridge constructed of rubble masonry. It features a gentle ramp towards the center and has twin arches made of stone voussoirs with recessed arch rings on the downstream side. There is a central triangular cutwater on the upstream side, and the parapets have splayed returns.
Local climate
Pont Gwanas sits in one of the wettest parts of the UK, with an average of 1,290 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 41 freeze-thaw cycles a year, more than 79% of listed buildings. Of these, 22 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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