Bridge and Causeway to Former Quarry at Chwarel-y-Fedw. is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 17 February 1997. Causeway.
Bridge and Causeway to Former Quarry at Chwarel-y-Fedw.
- WRENN ID
- waiting-rafter-clover
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 17 February 1997
- Type
- Causeway
- Address
- Bridge and Causeway to Former Quarry at Chwarel-y-Fedw., Brynmoel, Dolwyddelan, Conwy
- OS grid reference
- SH 745 526
- Coordinates
- 53.0567, -3.87361
- Source
- Cadw listing
Description
The Bridge and Causeway to the Former Quarry at Chwarel-y-Fedw is a Grade II listed structure. It features a slate-rubble causeway that is approximately 230 meters long, extending in an arc from the road, across the river Lledr, and ending at the railway line. The longest section, about 180 meters, leads to the river and includes a 9-span clapper section made of large slatestone slabs, with cutwaters on the upstream, convex side. On the opposite side of the river, there is a similar 10-span clapper section that rises slightly in the middle and is connected to the first section by a modern timber bridge. The causeway stands approximately 1.2 meters high and is 1.8 meters wide, constructed of dry-built, random rubble. It features a metalled footpath and, in part, a 20th-century wire fence.
Local climate
Bridge and Causeway to Former Quarry at Chwarel-y-Fedw. sits in one of the wettest parts of the UK, with an average of 1,260 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 89% of listed buildings.
It experiences an average of 49 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 30 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.
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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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