Pen-y-bryn Bridge (Canal Bridge No 123) is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 October 1998. Bridge.
Pen-y-bryn Bridge (Canal Bridge No 123)
- WRENN ID
- tattered-moat-brook
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 21 October 1998
- Type
- Bridge
- Address
- Pen-y-bryn Bridge (Canal Bridge No 123), Llangattock, Powys
- OS grid reference
- SO 181 195
- Coordinates
- 51.8683, -3.18999
- Source
- Cadw listing
Description
Pen-y-bryn Bridge, also known as Canal Bridge No 123, is a single-span hump-backed bridge constructed of rubble sandstone. It features a segmental arch made up of thin voussoirs and keystones, with continuous parapets that are splayed at the ends and heavily covered in vegetation. The copings consist mainly of upright stones. On the eastern side, which faces downstream, there is a cast iron plaque displaying the bridge number in relief. Additionally, a low retaining wall is located at the northwest end pier of the bridge, which includes a stile.
Local climate
Pen-y-bryn Bridge (Canal Bridge No 123) sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% of listed buildings.
It experiences an average of 54 freeze-thaw cycles a year, more than 94% of listed buildings. Of these, 30 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:
- No EPC on record for this property
- 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
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.
this building 1 similar nearby listed buildings