Loch Ken Viaduct is a Grade B listed building in the Dumfries and Galloway local planning authority area, Scotland. First listed on 23 April 1990. Viaduct.
Loch Ken Viaduct
- WRENN ID
- small-floor-hemlock
- Grade
- B
- Local Planning Authority
- Dumfries and Galloway
- Constituency
- Dumfries and Galloway MP: John Cooper (Con)
- Country
- Scotland
- Date first listed
- 23 April 1990
- Type
- Viaduct
- OS grid reference
- NX 683 703
- Coordinates
- 55.01024, -4.05956
- Source
- Historic Environment Scotland listing
Description
Loch Ken Viaduct was built in 1861 by engineers D and E Blyth. This masonry and iron viaduct spans Loch Ken and features a curving design. It has symmetrical elevations with seven bays, including a concrete flat span and masonry round-arch spans over the river banks, as well as three main iron spans over the water. The masonry is made of rusticated bull-faced red sandstone. Drum masonry piers are linked by transverse arches, which support a strengthened bowed truss of double Warren type. The ferrous metal spans measure 51.8 metres. The small landward spans have a low masonry parapet with a metal rail above.
Local climate
Loch Ken Viaduct sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.
It experiences an average of 44 freeze-thaw cycles a year, more than 85% of listed buildings. Of these, 23 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.
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- No EPC on record for this property
- No sale records on file
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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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