Cefn Canal Bridge over Monmouthshire and Brecon Canal is a Grade II listed building in the Newport local planning authority area, Wales. First listed on 23 July 2003. Bridge.

Cefn Canal Bridge over Monmouthshire and Brecon Canal

WRENN ID
fallow-alcove-snow
Grade
II
Local Planning Authority
Newport
Constituency
Newport West and Islwyn MP: Ruth Jones (Lab)
Country
Wales
Date first listed
23 July 2003
Type
Bridge
Address
Cefn Canal Bridge over Monmouthshire and Brecon Canal, Rogerstone
OS grid reference
ST 278 885
Coordinates
51.59139, -3.04218
Source
Cadw listing

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

Description

Cefn Canal Bridge is a hump-backed canal bridge that spans the Monmouthshire and Brecon Canal. It is built into a canal lock to the west and features rubblestone construction with a single segmental arch made of dressed sandstone voussoirs. The bridge has parapets with flat coping and a tarmac deck. On the eastern side, there is a cast-iron plate above the arch that displays raised white-painted lettering reading 'CEFN No. 6 BRIDGE'.

Local climate

Cefn Canal Bridge over 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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