Old House Bridge (Canal Bridge No 127) is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 28 August 1998. Bridge.

Old House Bridge (Canal Bridge No 127)

WRENN ID
tangled-spire-ivory
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
28 August 1998
Type
Bridge
Address
Old House Bridge (Canal Bridge No 127), Cyffredyn, Llangynidr, Powys
OS grid reference
SO 164 195
Coordinates
51.86789, -3.21446
Source
Cadw listing

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

Description

Old House Bridge, also known as Canal Bridge No 127, is a hump-backed bridge constructed from rubble sandstone. It features a segmental arch and a low parapet. The abutments curve outward on both sides, and the parapet includes square end piers, except on the southeast side. On the east side of the bridge, there is a cast iron plaque displaying the bridge number in relief.

Local climate

Old House Bridge (Canal Bridge No 127) 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

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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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