Bont Fawr Aqueduct (partly in Cwmavon community) is a Grade II* listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 6 March 2000. Aqueduct.
Bont Fawr Aqueduct (partly in Cwmavon community)
- WRENN ID
- carved-corbel-heron
- Grade
- II*
- Local Planning Authority
- Neath Port Talbot
- Constituency
- Aberafan Maesteg MP: Stephen Kinnock (Lab)
- Country
- Wales
- Date first listed
- 6 March 2000
- Type
- Aqueduct
- Address
- Bont Fawr Aqueduct (partly in Cwmavon community), Pontrhydyfen, Pelenna
- OS grid reference
- SS 795 941
- Coordinates
- 51.63354, -3.74134
- Source
- Cadw listing
Description
Bont Fawr Aqueduct is a large 4-bay structure made of rubble stone with carefully finished dressings. It features elliptical arches supported by wider tapering piers, which have stepped stone courses at the top against the arch spandrels. The abutments display similar details to the piers. Below the later parapet, there is a continuous band, and the parapet itself has blue-brick saddleback copings that flare out at the ends. The deck of the aqueduct is covered with tarmac.
Local climate
Bont Fawr Aqueduct (partly in Cwmavon community) sits in one of the wettest parts of the UK, with an average of 1,220 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 95% of listed buildings.
It experiences an average of 23 freeze-thaw cycles a year, fewer than 76% of listed buildings. Of these, 9 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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- 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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