Altnaharra Bridge is a Grade B listed building in the Highland local planning authority area, Scotland. First listed on 3 August 1977.
Altnaharra Bridge
- WRENN ID
- sunken-rubblework-equinox
- Grade
- B
- Local Planning Authority
- Highland
- Constituency
- Caithness, Sutherland and Easter Ross MP: Jamie Stone (LD)
- Country
- Scotland
- Date first listed
- 3 August 1977
- OS grid reference
- NC 568 357
- Coordinates
- 58.28659, -4.44332
- Source
- Historic Environment Scotland listing
Description
The Altnaharra Bridge, dating to circa 1815, is a three-span rubble bridge constructed as part of the parliamentary road between Bonar Bridge and Tongue via Altnaharra, completed by 1819. The bridge carries the A836 road. It is built of rubble with dressed rubble arch rings, the central arch being slightly larger than the flanking arches. The bridge features triangular cutwaters and a dressed rubble parapet with shallow buttresses and splayed approaches.
Local climate
Altnaharra Bridge sits in one of the wettest parts of the UK, with an average of 1,230 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 66% of listed buildings.
It experiences an average of 62 freeze-thaw cycles a year, more than 98% of listed buildings. Of these, 49 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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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