Iron Bridge over River Rhymney is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 5 March 1999. Bridge.
Iron Bridge over River Rhymney
- WRENN ID
- kindled-casement-flax
- Grade
- II
- Local Planning Authority
- Caerphilly
- Constituency
- Caerphilly MP: Chris Evans (Lab)
- Country
- Wales
- Date first listed
- 5 March 1999
- Type
- Bridge
- Address
- Iron Bridge over River Rhymney, Llanfedw, Rudry
- OS grid reference
- ST 229 872
- Coordinates
- 51.57885, -3.11273
- Source
- Cadw listing
Description
The Iron Bridge over the River Rhymney is a single-carriageway, two-span cast iron bridge. It features four central T-section piers that support segmental arches carrying the deck. The central spandrels are adorned with circles, while the outer spandrels display half circles, resembling the Iron Bridge in Shropshire. One arch on the downstream side is marked with the date 1829 in relief, while the upstream side has a partly missing arch. The abutments are constructed of coursed stone and are splayed outwards. The deck is covered with cast iron plates, which are now overgrown with grass, and it has a parapet made of cast iron railings topped with spear finials. Above the abutments, the parapets extend as white-brick walls that curve outwards and end in round piers, most of which have collapsed. On the left bank, the abutment includes an arched culvert, with the arch ring intact on the downstream side and collapsed on the upstream side.
Local climate
Iron Bridge over River Rhymney sits in a wetter-than-average part of the UK, with an average of 1,000 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.
It experiences an average of 33 freeze-thaw cycles a year, fewer than 56% of listed buildings. Of these, 13 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.
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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