Lyne Viaduct is a Grade B listed building in the Scottish Borders local planning authority area, Scotland. First listed on 9 November 1995. Viaduct.
Lyne Viaduct
- WRENN ID
- worn-sill-marsh
- Grade
- B
- Local Planning Authority
- Scottish Borders
- Constituency
- Dumfriesshire, Clydesdale and Tweeddale MP: David Mundell (Con)
- Country
- Scotland
- Date first listed
- 9 November 1995
- Type
- Viaduct
- OS grid reference
- NT 209 400
- Coordinates
- 55.64714, -3.25769
- Source
- Historic Environment Scotland listing
Description
Lyne Viaduct, probably designed by Robert Murray in 1864, is located on the Symington, Biggar and Broughton Railway. This four-span viaduct features three cream skew-arched spans, each made of sandstone masonry, spanning 29 feet over the Lyne Water. At the western end, there is a single wrought-iron plate girder span that crosses a minor road. The masonry spans have depressed arches with polished ashlar soffits that are spirally cut, along with rock-faced voussoirs and spandrels. The piers are equipped with rounded cutwaters that support tapering semi-octagonal buttresses, which extend through the cope to create dies for cast-iron geometric railings. At the road end of the masonry section, there is a massive abutment with three buttresses on the upstream side and two on the downstream side to accommodate the skew. All buttresses feature blind cruciform arrow slits.
Local climate
Lyne Viaduct sits in one of the wettest parts of the UK, with an average of 1,170 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 78% of listed buildings.
It experiences an average of 65 freeze-thaw cycles a year, more than 99% of listed buildings. Of these, 43 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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