Aberpergwm Aqueduct over Neath Canal is a Grade II listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 28 March 1980. Aqueduct.
Aberpergwm Aqueduct over Neath Canal
- WRENN ID
- second-facade-moon
- Grade
- II
- Local Planning Authority
- Neath Port Talbot
- Constituency
- Neath and Swansea East MP: Carolyn Harris (Lab)
- Country
- Wales
- Date first listed
- 28 March 1980
- Type
- Aqueduct
- Address
- Aberpergwm Aqueduct over Neath Canal, Glynneath
- OS grid reference
- SN 863 058
- Coordinates
- 51.7398, -3.64733
- Source
- Cadw listing
Description
The Aberpergwm Aqueduct, built over the Neath Canal, features a cast-iron trough adorned with decorative side panels. These panels include half-columns of Roman Doric style positioned between five panels that have raised borders and quadrant-curved rebates at the corners. The design consists of two long panels alternating with three shorter ones. One side of the aqueduct displays the inscription 'NEATH ABBEY GLAMORGANSHIRE 183?' in raised letters at its center. The trough is supported by squared stone piers, with the southwest pier showcasing a finely worked curved front, likely similar to the other three piers. The northwest pier is overgrown, while the eastern piers have been altered to accommodate a parallel road bridge. The two eastern piers are topped with tall square caps. Additionally, there is a stone-cobbles spillway on the downstream side.
Local climate
Aberpergwm Aqueduct over Neath Canal sits in one of the wettest parts of the UK, with an average of 1,300 mm of rain a year. This makes it wetter than 95% 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 39 freeze-thaw cycles a year, more than 74% of listed buildings. Of these, 18 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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Nearby listed buildings
- Bridge at lock on Neath Canal N of Yscwrfa Bridge
- Aberpergwm House
- Gates across driveway at Aberpergwm House
- Memorial to Jane Williams in the churchyarde of the Church of Saint Cadoc
- Church of Saint Cadoc
- Gate and railings and churchyard wall to SE of Church of St Cadoc
- Bridge, gatepiers and railings at S end of Manor Drive
- Limekiln to SE of Maes-Gwyn Lock on Neath Canal
- Bridge over Neath Canal at Maes-gwyn
- Aber-clwyd lock and overflow on Neath Canal