Menai Suspension Bridge is a Grade I listed building in the local planning authority area, Wales. First listed on 27 May 1949. Museum.
Menai Suspension Bridge
- WRENN ID
- over-marble-autumn
- Grade
- I
- Local Planning Authority
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 27 May 1949
- Type
- Museum
- Address
- Menai Suspension Bridge, Bangor, Gwynedd
- OS grid reference
- SH 557 713
- Coordinates
- 53.21938, -4.16241
- Source
- Cadw listing
Description
The Menai Suspension Bridge is a Grade I listed structure featuring coursed rubble Penmon masonry with ashlar facings on its tapered suspension towers, also known as 'pyramids.' The bridge deck is suspended by a system of 16 chains, originally made of iron but now constructed from steel, which are anchored deep into the rock at both ends. On the Anglesey side, there are four arches, while the Bangor side has three, all resting on tapered piers. The arches include voussoirs, impost bands, and a bracket cornice above. Later additions include metal pedestrian walkways that extend further out, whereas the original design featured only a narrow central pavement. Each carriageway passes under the towers through semicircular arched openings, which are complemented above by paired blind recesses that contain inscribed tablets. The handrails extend to the low tapered piers, which have pyramidal caps at each end. On the mainland side, trellised railings continue on either side and curve around to end at similar piers with panelled recesses.
Local climate
Menai Suspension Bridge 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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- 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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