Canal Bridge over Monmouthshire and Brecon Canal W of Penrhiw is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 22 October 1999. Bridge.

Canal Bridge over Monmouthshire and Brecon Canal W of Penrhiw

WRENN ID
sacred-lime-juniper
Grade
II
Local Planning Authority
Caerphilly
Constituency
Newport West and Islwyn MP: Ruth Jones (Lab)
Country
Wales
Date first listed
22 October 1999
Type
Bridge
Address
Canal Bridge over Monmouthshire and Brecon Canal W of Penrhiw, Risca
OS grid reference
ST 240 909
Coordinates
51.6126, -3.09863
Source
Cadw listing

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

Description

This is a hump-backed bridge made of rubble sandstone, located over the Monmouthshire and Brecon Canal to the west of Penrhiw. It features a single elliptical arch constructed with dressed stone voussoirs and has a low parapet with flat coping. The abutments are splayed outwards and end in square piers. A former tow path used to pass under the bridge on the west side. The deck is covered in tarmac, and there are cast iron weight restriction notices nearby. The bridge has been altered at the southwest.

Local climate

Canal Bridge over Monmouthshire and Brecon Canal W of Penrhiw sits in a wetter-than-average part of the UK, with an average of 1,000 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 56% of listed buildings. Of these, 13 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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