Penryn South West Railway Viaduct is a Grade II listed building in the Cornwall local planning authority area, England. Railway viaduct.

Penryn South West Railway Viaduct

WRENN ID
spare-finial-burdock
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Type
Railway viaduct
Address
Penryn South West Railway Viaduct, New Street
OS grid reference
SW 781 342
Coordinates
50.16625, -5.10828
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Penryn South West Railway Viaduct is an early 20th-century railway viaduct constructed from rock-faced granite. It features round brick arches and has a concrete core with a concrete parapet. The structure consists of 11 bays supported by tapered piers, with impost strings and corbelled refuges at alternate bays. Additionally, there are corbels for timber centering supports.

Local climate

Penryn South West Railway Viaduct receives an average of 850 mm of rain a year. This makes it wetter than 59% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.

It experiences an average of 7 freeze-thaw cycles a year, fewer than 95% of listed buildings. Of these, 3 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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  • Detailed attributes — period, style, materials, features
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  • 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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