Bridge at Plas-y-bryn is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 29 July 1997. Commercial building.
Bridge at Plas-y-bryn
- WRENN ID
- errant-groin-mist
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 29 July 1997
- Type
- Commercial building
- Address
- Bridge at Plas-y-bryn, Bontnewydd, Caernarfon
- OS grid reference
- SH 486 597
- Coordinates
- 53.11314, -4.26306
- Source
- Cadw listing
Description
The bridge at Plas-y-bryn is constructed from rubble stone and features red brick arches. It has two broad segmental arches, each supported by four courses of brick forming the arch-rings. The arches are elevated on a central pier and side abutments. The bridge is finished with flat parapets made of rubble stone.
Local climate
Bridge at Plas-y-bryn sits in one of the wettest parts of the UK, with an average of 1,370 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 98% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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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