Llwydcoed Tramroad Bridge is a Grade II listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 12 December 1979. Goods yard office.

Llwydcoed Tramroad Bridge

WRENN ID
noble-thatch-khaki
Grade
II
Local Planning Authority
Rhondda Cynon Taf
Constituency
Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
Country
Wales
Date first listed
12 December 1979
Type
Goods yard office
Address
Llwydcoed Tramroad Bridge, Gelli-Isaf, Aberdare West, Rhondda Cynon Taff
OS grid reference
SN 990 043
Coordinates
51.72879, -3.46374
Source
Cadw listing

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

Description

Llwydcoed Tramroad Bridge is a single arch bridge made of rubble, featuring a broad semi-circular arch constructed with voussoirs. There are pilasters at both ends of the bridge, and high revetment walls that curve back at the ends. Some stone blocks from the tramroad are still visible. The keystone on the eastern side of the bridge is dated 1834.

Local climate

Llwydcoed Tramroad 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.

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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