Merthyr Road Railway Bridge is a Grade II listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 27 June 2003. Railway bridge.
Merthyr Road Railway Bridge
- WRENN ID
- over-finial-lake
- Grade
- II
- Local Planning Authority
- Rhondda Cynon Taf
- Constituency
- Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
- Country
- Wales
- Date first listed
- 27 June 2003
- Type
- Railway bridge
- Address
- Merthyr Road Railway Bridge, Llwydcoed, Rhondda Cynon Taff
- OS grid reference
- SN 991 049
- Coordinates
- 51.73455, -3.46248
- Source
- Cadw listing
Description
The Merthyr Road Railway Bridge is a single-arch over-bridge designed with wide elliptical proportions to accommodate Brunel's broad gauge track. It is constructed from coursed hammer-dressed masonry, featuring droved margins on the voussoirs and tall plinth courses. The arch soffit is also made of coursed masonry. At road level, a broad string-course connects to the cappings of the ramped and splayed abutments that flank the track-bed. The bridge has parapets with blocked cappings and twin stone piers that provide a pedestrian entrance and ramp leading down to a former platform on the northwest side of the bridge. Additionally, a modern tubular bridge for pedestrians, created by Saunders Tubecrafts of Liverpool, is attached to the east side of the roadway.
Local climate
Merthyr Road Railway Bridge 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 91% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 80% of listed buildings. Of these, 20 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
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- 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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