Aqueduct over Dowlais Brook on Monmouthshire and Brecon Canal, partly in Cwmbran Central Community is a Grade II listed building in the Torfaen local planning authority area, Wales. First listed on 30 September 2003. Aqueduct.
Aqueduct over Dowlais Brook on Monmouthshire and Brecon Canal, partly in Cwmbran Central Community
- WRENN ID
- second-corridor-smoke
- Grade
- II
- Local Planning Authority
- Torfaen
- Constituency
- Torfaen MP: Nick Thomas-Symonds (Lab)
- Country
- Wales
- Date first listed
- 30 September 2003
- Type
- Aqueduct
- Address
- Aqueduct over Dowlais Brook on Monmouthshire and Brecon Canal, partly in Cwmbran Central Community, Llantarnam
- OS grid reference
- ST 290 940
- Coordinates
- 51.64037, -3.02667
- Source
- Cadw listing
Description
The aqueduct over Dowlais Brook on the Monmouthshire and Brecon Canal is a 19th-century structure. It features two tunnels made of squared stone, each with segmental arched openings on either side of the canal. The aqueduct has high stone embanking walls that lack parapets but are supported by triangular piers on each side and between the tunnels. These piers have sloping tops and stop about 1 meter below the top of the wall. The abutments on either side are splayed. The arches consist of stone voussoirs with raised keystones, and the walling is constructed of squared stone laid in courses. On the downstream side, the river is paved for approximately 6 meters with squared stone blocks that end at a low weir.
Local climate
Aqueduct over Dowlais Brook on Monmouthshire and Brecon Canal, partly in Cwmbran Central Community receives an average of 930 mm of rain a year. This makes it wetter than 71% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 72% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more than 55% of listed buildings. Of these, 14 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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