Bridge over Tennant Canal, including towpath retaining walls and overflow channels is a Grade II listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 29 January 1980. Bridge.

Bridge over Tennant Canal, including towpath retaining walls and overflow channels

WRENN ID
final-turret-evening
Grade
II
Local Planning Authority
Neath Port Talbot
Constituency
Neath and Swansea East MP: Carolyn Harris (Lab)
Country
Wales
Date first listed
29 January 1980
Type
Bridge
Address
Bridge over Tennant Canal, including towpath retaining walls and overflow channels, Blaenhonddan
OS grid reference
SS 749 978
Coordinates
51.66519, -3.80892
Source
Cadw listing

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

Description

The bridge over the Tennant Canal is a canal bridge featuring a segmental arch constructed with stone voussoirs and a high parapet. The towpath, which includes retaining walls, rises to and descends from the former turnpike road that crossed the River Neath at this location. To the south of the canal, there is a passage through the river bridge, and alongside the River Neath runs a retaining wall made of coursed rubble stone. Just below where the canal towpath begins to rise to the bridge, there are three conjoined semi-elliptical arches that serve as overflow channels. Further south, within the same retaining wall, there is a segmental sluice arch that features wooden sluice machinery on the west side of the towpath.

Local climate

Bridge over Tennant Canal, including towpath retaining walls and overflow channels sits in one of the wettest parts of the UK, with an average of 1,380 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 12 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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