Lock Number 21 on Leeds-Liverpool Canal is a Grade II listed building in the Wigan local planning authority area, England. First listed on 8 December 1999. Canal lock. 1 related planning application.

Lock Number 21 on Leeds-Liverpool Canal

WRENN ID
bitter-chalk-starling
Grade
II
Local Planning Authority
Wigan
Constituency
Wigan MP: Lisa Nandy (Lab)
Country
England
Date first listed
8 December 1999
Type
Canal lock
Address
Lock Number 21 on Leeds-Liverpool Canal, Warrington Road
OS grid reference
SD 586 049
Coordinates
53.53988, -2.62531
Source
Historic England listing

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

Description

Lock Number 21 on the Leeds-Liverpool Canal is a canal lock built in 1816 for the Leeds-Liverpool Canal, designed by engineer John Rennie. The structure is made of coursed sandstone blocks, although the coping has been replaced with concrete. At the upper end, there are oak gates and beams, while the lower end features iron gates and beams. Each side of the lock has three small mooring bollards, and there is an overflow channel located on the south side.

Local climate

Lock Number 21 on Leeds-Liverpool Canal 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 84% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 76% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 54% of listed buildings. Of these, 18 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 — 1 application
  • 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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