Railway Bridge at Former Llechwedd Sidings is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 1 February 1996. Bridge.
Railway Bridge at Former Llechwedd Sidings
- WRENN ID
- proud-lantern-myrtle
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 1 February 1996
- Type
- Bridge
- Address
- Railway Bridge at Former Llechwedd Sidings, Llechwedd Slate Mine, Ffestiniog, Gwynedd
- OS grid reference
- SH 696 468
- Coordinates
- 53.00306, -3.94332
- Source
- Cadw listing
Description
The Railway Bridge at Former Llechwedd Sidings is a pair of cast-iron railway beam bridges built in 1879 when the Llechwedd slate mine established railway sidings east of the main railway track. These sidings were used to transport slates by rail to transhipment wharves at Deganwy. The bridges are heavily riveted and consist of two panels; the larger bridge spans the Afon Barlwydd at an angle and is approximately 6 meters long, while the other bridge, with a shallower beam, spans a former tramway leading to a now disused incline. Originally, both bridges carried single tracks from the sidings to the main line, but the rails have since been removed. They are listed as scarce examples of later 19th century cast-iron beam bridges and hold group value with other listed items at the former Llechwedd sidings.
Local climate
Railway Bridge at Former Llechwedd Sidings 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 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.
It experiences an average of 49 freeze-thaw cycles a year, more than 90% of listed buildings. Of these, 29 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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