Bridge 109 over the Montgomeryshire Canal is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 29 February 1996. Bank, shop.

Bridge 109 over the Montgomeryshire Canal

WRENN ID
forbidden-rubblework-harvest
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
29 February 1996
Type
Bank, shop
Address
Bridge 109 over the Montgomeryshire Canal, Bank, Llandrinio
OS grid reference
SJ 260 129
Coordinates
52.70907, -3.0963
Source
Cadw listing

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

Description

Bridge 109 over the Montgomeryshire Canal is a single-arched bridge built between 1794 and 1797, designed by engineers John and Thomas Dadford. In the 1880s and 1890s, the Shropshire Union Canal and Railway Company likely reconstructed the bridge as part of extensive work on the canal.

The bridge features curved retaining walls that extend the line of the parapet on the eastern side, with short extensions of the parapet walls on the western side. It is constructed of red and blue brick, with rounded blue brick copings and rusticated pyramidal stone copings on the terminal piers at each end and the eastern retaining walls.

This bridge is a very good example of a later Montgomeryshire Canal bridge, remaining virtually intact and forming part of a group with Bank Lock.

Local climate

Bridge 109 over the Montgomeryshire Canal 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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  9. Wern Bridge Grade II 1.0 km
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