Copley Viaduct Lancashire and Yorkshire Railway Copley Viaduct is a Grade II listed building in the Calderdale local planning authority area, England. First listed on 19 July 1988. A C19 Viaduct.

Copley Viaduct Lancashire and Yorkshire Railway Copley Viaduct

WRENN ID
worn-portal-quill
Grade
II
Local Planning Authority
Calderdale
Constituency
Halifax MP: Kate Dearden (Lab)
Country
England
Date first listed
19 July 1988
Type
Viaduct
OS grid reference
SE 081 227
Coordinates
53.70144, -1.87752
Source
Historic England listing

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

Description

Copley Viaduct is a railway viaduct that crosses the River Calder, the Calder and Hebble Navigation, and Wakefield Road. It was built around 1851 for the Lancashire and Yorkshire Railway Company. The structure is made of snecked rock-faced sandstone and features a total of 23 arches supported by tall piers. There are 15 semicircular arches with rock-faced voussoirs, and four wider segmental arches at each end, which also have similar voussoirs in ashlar. The easternmost arch over Wakefield Road is notably flatter. A plain band runs at the impost and cornice level, with a parapet above. The viaduct is mainly located in the parish of Halifax. The Sowerby Bridge to Halifax branch line opened on 1 January 1852.

Local climate

Copley Viaduct Lancashire and Yorkshire Railway Copley Viaduct sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 82% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 76% of listed buildings.

It experiences an average of 51 freeze-thaw cycles a year, more than 92% 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.

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