Lower Lock Chamber is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 29 December 1994. House.
Lower Lock Chamber
- WRENN ID
- noble-bronze-pearl
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 29 December 1994
- Type
- House
- Address
- Lower Lock Chamber, Burgedin Lock, Burgedin, Llandrinio
- OS grid reference
- SJ 252 146
- Coordinates
- 52.72438, -3.10876
- Source
- Cadw listing
Description
The Lower Lock Chamber is constructed from engineering bricks with heavy gritstone coping. At the upper end, there is a ground paddle and radial arm gear made by the Coalbrookdale Company, which is surrounded on three sides by heavy stone blocks. This paddle gear was likely designed by George Buck during engineering improvements that took place between 1819 and 1831. The iron shod timber gates were removed at the time of inspection in August 1994. The main pound walls also feature a narrowing made of blue brick.
On the north side, there is a feeder stream with a tapered spillway that includes a central flume controlled by a ratchet paddle gear. Additionally, there is a 60-meter spun concrete culvert from the 20th century leading to a blue brick interceptor bay situated alongside the tapering walls of the main pound.
Local climate
Lower Lock Chamber receives an average of 840 mm of rain a year. This makes it wetter than 55% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 61% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 80% of listed buildings. Of these, 21 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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- 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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