West Largin Railway Viaduct is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 30 April 1985. Railway viaduct.
West Largin Railway Viaduct
- WRENN ID
- riven-chimney-briar
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- South East Cornwall MP: Anna Gelderd (Lab)
- Country
- England
- Date first listed
- 30 April 1985
- Type
- Railway viaduct
- Address
- West Largin Railway Viaduct, Braddock
- OS grid reference
- SX 166 647
- Coordinates
- 50.45426, -4.58446
- Source
- Historic England listing
Description
The West Largin Railway Viaduct is a railway viaduct built in 1875. It features rusticated snecked slate piers with rock-faced granite voussoirs and quoins supporting three round arches. The stone parapet has been partly rebuilt using brick, and there is only one triangular refuge. This viaduct was the first of Isambard Kingdom Brunel's structures to be replaced by a masonry design on the Great Western Railway. It is part of a series of viaducts constructed in quick succession along Brunel's Plymouth to Truro line, which was opened in 1859.
Local climate
West Largin Railway Viaduct sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 82% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 7 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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