Causeway with two bridges at Pont Newydd (partly in Pentrefoelas community) is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 23 June 1967. Causeway and bridges.
Causeway with two bridges at Pont Newydd (partly in Pentrefoelas community)
- WRENN ID
- eternal-baluster-ridge
- Grade
- II
- Local Planning Authority
- Conwy
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 23 June 1967
- Type
- Causeway and bridges
- Address
- Causeway with two bridges at Pont Newydd (partly in Pentrefoelas community), Hendre-Isaf, Ysbyty Ifan
- OS grid reference
- SH 861 512
- Coordinates
- 53.04642, -3.69949
- Source
- Cadw listing
Description
The causeway at Pont Newydd, partly located in the Pentrefoelas community, is a Grade II listed structure that raises over a marshy area and the river. It features a low arch at the northern end and a full bridge at the southern end, constructed from rubble stonework. The main bridge has a single segmental arch that spans 8.1 meters, consisting of a single ring of voussoirs that are 0.56 meters deep, topped by a regulating course, and rises to a central keystone 2.4 meters above the water level. The spandrels are flush. The northern bridge is similar but lower, with its parapet replaced by railings. In the 20th century, both bridges were widened with a cranked concrete slab, on which the parapets were rebuilt, featuring flush iron-cramped copings. The carriageway is humped and measures 3 meters wide between the 0.4-meter thick parapets.
Local climate
Causeway with two bridges at Pont Newydd (partly in Pentrefoelas community) sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.
It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 29 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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