Pont Wrysgen is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 4 November 1999. Bridge.
Pont Wrysgen
- WRENN ID
- shadowed-ashlar-lichen
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 4 November 1999
- Type
- Bridge
- Address
- Pont Wrysgen, Cwm Cewydd, Machynlleth, Mawddwy, Gwynedd
- OS grid reference
- SH 870 130
- Coordinates
- 52.70363, -3.67342
- Source
- Cadw listing
Description
Pont Wrysgen is a bridge constructed from coursed squared rubble. It features a large semi-circular arch made of flush even shale voussoirs that springs from native rock and rises to a keystone. The bridge has flush spandrels, a projecting string course, and a parapet with flat coping stones. The abutments are slightly battered and terminate in demi-piers. The arch spans approximately 10.7 meters and rises 6.2 meters above the river, supporting a carriageway that is 5.5 meters wide with parapets that are 53 centimeters high.
Local climate
Pont Wrysgen 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 93% 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 47 freeze-thaw cycles a year, more than 88% 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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