Pont Twr is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 25 April 1997. Bridge.
Pont Twr
- WRENN ID
- still-string-equinox
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 25 April 1997
- Type
- Bridge
- Address
- Pont Twr, Braichmelyn, Bangor, Bethesda
- OS grid reference
- SH 625 659
- Coordinates
- 53.1731, -4.05735
- Source
- Cadw listing
Description
Pont Twr is a three-arched bridge made of rubble stone, which was widened in the early 19th century. The original northern side features low, rough stone voussoir arches and a rubble parapet. The northwest end has been splayed, possibly during the early 19th century, creating an overhang on the right half of the central arch and refacing on the right arch. The added southern side from the early 19th century includes three shallow elliptical arches with cut slate voussoirs and raised arch rings. There is a string course above the arches, along with low cutwaters and raised piers between them, with the string course broken forward over the piers. The bridge has a rubble parapet topped with edge-on stone coping.
Local climate
Pont Twr 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 90% of listed buildings.
It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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.
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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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