Bont Fechan is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 19 October 1971. Bridge.
Bont Fechan
- WRENN ID
- turning-mullion-plover
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 October 1971
- Type
- Bridge
- Address
- Bont Fechan, Llanystumdwy, Criccieth
- OS grid reference
- SH 463 380
- Coordinates
- 52.91774, -4.28727
- Source
- Cadw listing
Description
Bont Fechan is a bridge featuring three major segmental arches made of rubble voussoirs. The eastern arch is the earlier of the two and is flush with the spandrels, while the western arch is set back under a regulating course. Each major arch spans 4.3 meters with a rise of 1.8 meters above the river level and is supported by two water piers; the southern pier is larger and higher than the northern one. Both piers are chamfered back to the flush stone parapet, which is topped with large unshaped stones. At the southern end of the bridge, there is a lower segmental flood arch, and at the northern end, there is a small culvert. The entire structure measures approximately 24.4 meters in length (80 feet). The bridge was widened by 1.74 meters on the western side, resulting in a carriageway width of 3.9 meters with parapets of 0.43 meters on each side.
Local climate
Bont Fechan sits in one of the wettest parts of the UK, with an average of 1,610 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It experiences an average of 11 freeze-thaw cycles a year, fewer than 89% of listed buildings. Of these, 4 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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