Bridge 139 over The Montgomeryshire Canal is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 21 August 1995. Bridge.

Bridge 139 over The Montgomeryshire Canal

WRENN ID
salt-casement-aspen
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
21 August 1995
Type
Bridge
Address
Bridge 139 over The Montgomeryshire Canal, Fron, Berriew
OS grid reference
SO 177 973
Coordinates
52.56815, -3.21555
Source
Cadw listing

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

Description

Bridge 139 over The Montgomeryshire Canal is a late 19th-century swing bridge that carries a driveway over the canal on the west side of the A483, located immediately southwest of Maes Fron and approximately 0.3 kilometers south of Fron Post Office Stores.

The bridge features bellied cast-iron girders that support the decking, which swings into a blue brick turning circle on the western bank of the canal. The rails on either side of the bridge are likely later additions or replacements.

This bridge is an interesting example of an iron-girder swing bridge and is one of the very few remaining from the later 19th-century engineering work on the Montgomeryshire Canal.

Local climate

Bridge 139 over The Montgomeryshire Canal receives an average of 900 mm of rain a year. This makes it wetter than 67% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 58% of listed buildings.

It experiences an average of 42 freeze-thaw cycles a year, more than 81% of listed buildings. Of these, 23 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

Sign in or create a free account to unlock:

  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • No sale records on file
  • No related consent applications matched
  • 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
Create free account

Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.

Similar buildings

The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.

See all similar buildings →

this building   1 similar   nearby listed buildings

Nearby listed buildings

  1. Maes Fron Grade II 45 m
  2. Brick Shed alongside Bridge 140 over The Canal Grade II 155 m
  3. Bridge 140 over The Canal Grade II 162 m
  4. Bridge 137 over the Montgomeryshire Canal Grade II 276 m
  5. Telephone Call-box in front of Fron Post Office Stores Grade II 300 m
  6. Post Office Stores Grade II 314 m
  7. Tan-y-Fron Grade II 326 m
  8. Bridge Cottage Grade II 352 m
  9. Red House Farmhouse Grade II 523 m
  10. Bridge 142 over the Mongomeryshire Canal Grade II 558 m