Aldersley Junction Bridge Birmingham Canal No 21 (Bottom) Lock is a Grade II listed building in the Wolverhampton local planning authority area, England. First listed on 31 March 1992. Bridge, lock. 2 related planning applications.

Aldersley Junction Bridge Birmingham Canal No 21 (Bottom) Lock

WRENN ID
last-chancel-umber
Grade
II
Local Planning Authority
Wolverhampton
Constituency
Wolverhampton West MP: Warinder Juss (Lab)
Country
England
Date first listed
31 March 1992
Type
Bridge, lock
Address
Aldersley Junction Bridge Birmingham Canal No 21 (Bottom) Lock, City of Wolverhampton
OS grid reference
SJ 902 011
Coordinates
52.60784, -2.14481
Source
Historic England listing

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

Description

Aldersley Junction Bridge and No. 21 (Bottom) Lock are located on the Birmingham Canal in Wolverhampton. Built in 1785 and restored in the 1980s, they were designed by engineers James Brindley, R. Whitworth, and S. Simcock. The structure is made of brick with stone coping. The bridge features a brick elliptical arch with a stone key and straight parapets, and it has a ramp on the north side, measuring approximately 3.5 meters wide. The lock to the east has double lower gates and a single upper gate. This lock is part of a flight of 21 locks on the Birmingham Canal, specifically at the Wolverhampton level. Lock No. 21 was added about 15 years after the main flight was constructed around 1785, as Lock No. 20 was found to be too deep and was subsequently altered in the same year.

Local climate

Aldersley Junction Bridge Birmingham Canal No 21 (Bottom) Lock receives an average of 800 mm of rain a year. This makes it drier than 54% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 74% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 69% of listed buildings. Of these, 19 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
  • 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
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