Old Bridge Over River Allen is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 19 June 1973. Bridge. 2 related planning applications.
Old Bridge Over River Allen
- WRENN ID
- steep-gateway-rain
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Truro and Falmouth MP: Jayne Kirkham (Lab)
- Country
- England
- Date first listed
- 19 June 1973
- Type
- Bridge
- Address
- Old Bridge Over River Allen, Old Bridge Street, Truro, TR1 2AQ
- OS grid reference
- SW 827 449
- Coordinates
- 50.26421, -5.05018
- Source
- Historic England listing
Description
The Old Bridge over the River Allen is a road bridge, likely built in the 18th century. It is constructed of rubble, with a rendered surface at the west upstream end. The bridge features two elliptical arches and a cutwater, along with lintelled openings at the other end.
Local climate
Old Bridge Over River Allen receives an average of 890 mm of rain a year. This makes it wetter than 66% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 6 freeze-thaw cycles a year, fewer than 96% of listed buildings. Of these, 2 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- No sale records on file
- Related listed building consents — 2 applications
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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