St Thomas Bridge is a Grade II listed building in the Cornwall local planning authority area, England. Road bridge.

St Thomas Bridge

WRENN ID
dark-rampart-gorse
Grade
II
Local Planning Authority
Cornwall
Constituency
North Cornwall MP: Ben Maguire (LD)
Country
England
Type
Road bridge
Address
St Thomas Bridge, St Thomas Road, Launceston
OS grid reference
SX 328 850
Coordinates
50.64151, -4.36503
Source
Historic England listing

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

Description

St Thomas Bridge is a road bridge over the River Kensey in Launceston, dating from the 18th century. It is constructed of slatestone rubble with granite copings secured by iron cramps. The bridge features three round-arched spans, two of which are for the river, and one for the leat that served the former Kensey Tannery.

Local climate

St Thomas Bridge 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 83% 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 18 freeze-thaw cycles a year, fewer than 82% of listed buildings. Of these, 8 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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Nearby listed buildings

  1. Trekensey House Grade II 48 m
  2. K6 Telephone Kiosk Grade II 74 m
  3. 4, West Bridge Road Grade II 75 m
  4. Fragment of Former Priory by South East Corner of Church of St Thomas by Launceston Grade II 84 m
  5. The West Bridge Grade I 85 m
  6. The Round House and Base of Medieval Market Cross Grade II 88 m
  7. Church of St Thomas by Launceston Grade II* 88 m
  8. Wall, Gates and Gate Piers North and West of Church of St Thomas by Launceston Grade II 91 m
  9. 10 and 12, Newport Square Grade II 92 m
  10. Langton House Grade II 96 m