Road bridge over Nant Clydach is a Grade II listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 12 December 2002. Road bridge.

Road bridge over Nant Clydach

WRENN ID
rooted-rotunda-falcon
Grade
II
Local Planning Authority
Rhondda Cynon Taf
Constituency
Pontypridd MP: Alex Davies-Jones (Lab)
Country
Wales
Date first listed
12 December 2002
Type
Road bridge
Address
Road bridge over Nant Clydach, Glyncoch, Abercynon, Rhondda Cynon Taff
OS grid reference
ST 080 928
Coordinates
51.62703, -3.32976
Source
Cadw listing

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

Description

This road bridge spans the Nant Clydach and is constructed from coursed, roughly dressed rubble, featuring some large stones. Originally, it had flat coping made of tooled stone, although part of this has been replaced with concrete. An inscription stone is located on the inner east face of the bridge. The structure includes two segmental arches with tooled voussoirs at river level and a projecting keystone. On the downstream north side, there is a curved rubble abutment. Additionally, later pipes have been attached to each side of the bridge.

Local climate

Road bridge over Nant Clydach sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 53% of listed buildings. Of these, 14 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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