Canal bridge S of Tamplin Lock on Monmouthshire and Brecon Canal is a Grade II listed building in the Torfaen local planning authority area, Wales. First listed on 30 September 2003. Canal bridge.

Canal bridge S of Tamplin Lock on Monmouthshire and Brecon Canal

WRENN ID
other-cornice-amber
Grade
II
Local Planning Authority
Torfaen
Constituency
Torfaen MP: Nick Thomas-Symonds (Lab)
Country
Wales
Date first listed
30 September 2003
Type
Canal bridge
Address
Canal bridge S of Tamplin Lock on Monmouthshire and Brecon Canal, Cwmbran, Llantarnam
OS grid reference
ST 295 918
Coordinates
51.62117, -3.01938
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

This is a hump-backed canal bridge located south of Tamplin Lock on the Monmouthshire and Brecon Canal. It is constructed from rubblestone and features a single segmental arch made of dressed sandstone voussoirs. The bridge has low parapets with flat coping, and the abutments splay outwards on each side. A former tow path passed under the bridge on the west side.

Local climate

Canal bridge S of Tamplin Lock on Monmouthshire and Brecon Canal 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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  • 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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