Polwheveral Bridge is a Grade II* listed building in the Cornwall local planning authority area, England. First listed on 17 June 1988. Road bridge.
Polwheveral Bridge
- WRENN ID
- waiting-window-heron
- Grade
- II*
- Local Planning Authority
- Cornwall
- Constituency
- Camborne and Redruth MP: Perran Moon (Lab)
- Country
- England
- Date first listed
- 17 June 1988
- Type
- Road bridge
- Address
- Polwheveral Bridge, Constantine
- OS grid reference
- SW 737 284
- Coordinates
- 50.11289, -5.16652
- Source
- Historic England listing
Description
Polwheverall Bridge is a road bridge over the Polwheverell stream, built in 1572 and likely widened in the 19th century. Constructed from granite, it features a small single span. The vault consists of a series of granite arched beams placed side by side, with each beam forming a dressed granite unchamfered four-centred arch, supported by corbelled springing over straight ashlar abutments. The bridge was widened on the downstream south side using massive roughly-hewn granite blocks. Both sides of the bridge have parapets made of similar rough granite blocks. The bridge spans the Polwheverell stream, which flows into Polwheverall Creek, a tributary of the Helford River. There is a contract from 1572 between the parish and Roger Hallard, a mason from Tregoney, regarding its construction.
Local climate
Polwheveral Bridge receives an average of 870 mm of rain a year. This makes it wetter than 63% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.
It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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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