Grand Union Canal Little Braunston Lock at Bridge Number 4 is a Grade II listed building in the West Northamptonshire local planning authority area, England. First listed on 11 March 1987. Lock.

Grand Union Canal Little Braunston Lock at Bridge Number 4

WRENN ID
half-keystone-candle
Grade
II
Local Planning Authority
West Northamptonshire
Constituency
Daventry MP: Stuart Andrew (Con)
Country
England
Date first listed
11 March 1987
Type
Lock
OS grid reference
SP 548 658
Coordinates
52.28836, -1.19677
Source
Historic England listing

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

Description

The Little Braunston Lock at Bridge Number 4 on the Grand Union Canal is a lock built in the late 18th century, with renovations occurring in the 19th century. It features datestones from 1877 and 1872. The lock has red brick retaining walls topped with limestone ashlar coping, along with wooden gates and balance beams. The Grand Junction Canal was authorized by an Act of Parliament in 1793, and the section through Braunston was completed by 1796. In 1929, the canal was taken over by the Grand Union Canal Company, which led to a name change.

Local climate

Grand Union Canal Little Braunston Lock at Bridge Number 4 receives an average of 750 mm of rain a year. This makes it drier than 71% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 68% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 69% 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.

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