Blackett Bridge Over the River West Allen is a Grade II listed building in the Northumberland local planning authority area, England. First listed on 23 August 1985. Bridge.
Blackett Bridge Over the River West Allen
- WRENN ID
- gaunt-frieze-mint
- Grade
- II
- Local Planning Authority
- Northumberland
- Constituency
- Hexham MP: Joe Morris (Lab)
- Country
- England
- Date first listed
- 23 August 1985
- Type
- Bridge
- Address
- Blackett Bridge Over the River West Allen, Plenmeller with Whitfield
- OS grid reference
- NY 780 540
- Coordinates
- 54.88086, -2.34418
- Source
- Historic England listing
Description
Blackett Bridge over the River West Allen is a stone bridge dated 1857. It features an inclined design with three elliptical arches that increase in height towards the west. The bridge has rock-faced abutments and piers, which are complemented by triangular cutwaters. Below the parapets, there is a band that ends in low square piers. The parapet coping and dressings are also rock-faced and margined. On the internal face of the north parapet, there is a panel with an inscription in a moulded surround that reads: "BLACKETT BRIDGE BUILT BY SUBSCRIPTION THE FOUNDATION STONE WAS LAID BY EDWARD BLACKETT ORD APRIL XV.MDCCCLVII."
Local climate
Blackett Bridge Over the River West Allen sits in a wetter-than-average part of the UK, with an average of 1,010 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 61% of listed buildings.
It experiences an average of 64 freeze-thaw cycles a year, more than 99% of listed buildings. Of these, 42 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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- 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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