Bridge over the Afon Braint is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 30 January 1968. Bridge.

Bridge over the Afon Braint

WRENN ID
low-corridor-spring
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
30 January 1968
Type
Bridge
Address
Bridge over the Afon Braint, Penmynydd, Llanfairpwllgwyngyll
OS grid reference
SH 524 732
Coordinates
53.23598, -4.21268
Source
Cadw listing

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

Description

The bridge over the Afon Braint is a stone structure featuring an elliptical arch, with small rectangular openings on either side. The bridge has been widened on the upstream side to the north. The arch is constructed with roughly dressed voussoirs and is slightly inset below an extrados course made of narrow slabs, which sits above rubble masonry. The parapet is rough, and there is a stone inscribed with the date 1773.

Local climate

Bridge over the Afon Braint sits in one of the wettest parts of the UK, with an average of 1,210 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 93% of listed buildings.

It experiences an average of 23 freeze-thaw cycles a year, fewer than 75% of listed buildings. Of these, 11 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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