Treglasta Bridge is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 11 November 1987. Bridge.

Treglasta Bridge

WRENN ID
heavy-chamber-yarrow
Grade
II
Local Planning Authority
Cornwall
Constituency
North Cornwall MP: Ben Maguire (LD)
Country
England
Date first listed
11 November 1987
Type
Bridge
Address
Treglasta Bridge, Davidstow
OS grid reference
SX 180 859
Coordinates
50.64452, -4.57512
Source
Historic England listing

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

Description

Treglasta Bridge is a road bridge over the River Inny, built in the mid-19th century and rebuilt after a flood in 1847. It is constructed of stone rubble and granite. The bridge features a narrow design with a round dressed stone arch on the north side and a flat lintel on the south side. There is a central pier made of stone rubble. The bridge does not have parapets but is equipped with wrought iron railings.

Local climate

Treglasta Bridge sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 89% of listed buildings.

It experiences an average of 15 freeze-thaw cycles a year, fewer than 86% of listed buildings. Of these, 6 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
  • 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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