Bridge No. 81 Monmouthshire and Brecon Canal is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 9 December 2005. Bridge.

Bridge No. 81 Monmouthshire and Brecon Canal

WRENN ID
shifting-belfry-stoat
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
9 December 2005
Type
Bridge
Address
Bridge No. 81 Monmouthshire and Brecon Canal, Abergavenny, Llanover
OS grid reference
SO 307 082
Coordinates
51.76885, -3.00472
Source
Cadw listing

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

Description

Bridge No. 81 is an accommodation and access bridge over the Monmouthshire and Brecon Canal. It features a semi-elliptical arch made of voussoirs and is constructed from squared, faced, and coursed local sandstone. The bridge has a parapet with slab coping and curving abutments. The stonework is more defined than that of earlier bridges, and there is a triple arch ring made of blue engineering brick. The bridge number is located on the south face of the arch. A towpath runs beneath the bridge arch on the east side.

Local climate

Bridge No. 81 Monmouthshire and Brecon Canal receives an average of 960 mm of rain a year. This makes it wetter than 74% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.

It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 22 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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