Pont-y-rhyd-ddu (partly in Garw Valley community) is a Grade II listed building in the Bridgend local planning authority area, Wales. First listed on 23 October 1998. Bridge.

Pont-y-rhyd-ddu (partly in Garw Valley community)

WRENN ID
low-newel-swallow
Grade
II
Local Planning Authority
Bridgend
Constituency
Rhondda and Ogmore MP: Chris Bryant (Lab)
Country
Wales
Date first listed
23 October 1998
Type
Bridge
Address
Pont-y-rhyd-ddu (partly in Garw Valley community), Shwt, Llangynwyd Lower
OS grid reference
SS 889 864
Coordinates
51.5662, -3.60321
Source
Cadw listing

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

Description

Pont-y-rhyd-ddu is a bridge built from squared Pennant sandstone rubble. It features a segmental arch made of narrow rubble voussoirs that springs from vertical stone abutments, spanning approximately 8.4 meters across the river. The spandrels rise to an angled square string course at the base of the flush parapets, which are topped with roughly shaped semicircular rubble stones. The total height of the bridge coping from the water level is 6.3 meters, and the abutment curves around on the west side.

Local climate

Pont-y-rhyd-ddu (partly in Garw Valley community) sits in one of the wettest parts of the UK, with an average of 1,200 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.

It experiences an average of 29 freeze-thaw cycles a year, fewer than 68% of listed buildings. Of these, 12 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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