Devil’s Bridge is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 27 July 2000. Bridge.

Devil’s Bridge

WRENN ID
high-alcove-snow
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
27 July 2000
Type
Bridge
Address
Devil’s Bridge, Gellifelen, Llanelly, Monmouthshire
OS grid reference
SO 215 124
Coordinates
51.80549, -3.13937
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Devil's Bridge is a single-arch bridge constructed from rubble. It features a very low cemented parapet and has 20th-century metal railings. The bridge has a tall round-headed arch made with cut stone voussoirs.

Local climate

Devil’s Bridge sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 75% of listed buildings.

It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 24 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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  • 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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Nearby listed buildings

  1. Revetment of former Merthyr, Tredegar and Abergavenny Railway at Darrenfelen Grade II 311 m
  2. Limekilns at Blackrock Limeworks, including Loading-ramp Grade II 377 m
  3. Milestone at Pont-gam Grade II 586 m
  4. Gellifelen Tramroad Bridge Grade II 640 m
  5. Limekilns at Llanelly Limeworks Grade II 674 m
  6. Tramroad Bridge over Sychnant River Grade II 996 m
  7. Three Arch Viaduct of former Merthyr, Tredegar and Abergavenny Railway Grade II 1.0 km
  8. Clydach Wesleyan Chapel including Sunday School and railed forecourt Grade II 1.1 km
  9. Oak House Grade II 1.2 km
  10. Smart’s Bridge Grade II* 1.5 km