Tramroad Bridge is a Grade II listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 10 January 1991. Bridge.

Tramroad Bridge

WRENN ID
upper-string-winter
Grade
II
Local Planning Authority
Rhondda Cynon Taf
Constituency
Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
Country
Wales
Date first listed
10 January 1991
Type
Bridge
Address
Tramroad Bridge, Trecynon, Aberdare West, Rhondda Cynon Taff
OS grid reference
SN 997 036
Coordinates
51.72241, -3.45329
Source
Cadw listing

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

Description

The Tramroad Bridge is an early cast-iron bridge, approximately 3 meters wide and 10.5 meters long, supported by rubble abutments. The decking consists of cast iron plates laid on four arched lattice beams. It features simple modern iron parapets, with one upright that has been reused and inscribed with 'Abernant 1811'. The deck has a ridged top, which provides grip for horses pulling loads across the bridge. The abutments curve slightly outward at the ends. The bridge has been recently restored and now serves as part of a public footpath.

Local climate

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
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