Bridge No. 47, Union Canal is a Grade B listed building in the West Lothian local planning authority area, Scotland. First listed on 25 June 1980.
Bridge No. 47, Union Canal
- WRENN ID
- carved-mantel-lark
- Grade
- B
- Local Planning Authority
- West Lothian
- Constituency
- Bathgate and Linlithgow MP: Kirsteen Sullivan (Lab)
- Country
- Scotland
- Date first listed
- 25 June 1980
- OS grid reference
- NS 978 760
- Coordinates
- 55.96687, -3.6373
- Source
- Historic Environment Scotland listing
Description
This is a bridge, dating to circa 1820, built as part of the Edinburgh and Glasgow Union Canal. The canal, begun in 1818 and opened in May 1822, connected Edinburgh to the Forth and Clyde Canal near Falkirk, completing the inland waterway link between Scotland’s two major cities. The bridge was designed by Hugh Baird, with advice from Telford on the three main aqueducts. It is a segmental-arched structure constructed from coursed whinstone rubble, with a brick parapet that has been rebuilt. Numbers are inscribed beside the keystone. When completed, the canal was 31 and a half miles long, with dimensions of 5 feet deep, 37 feet wide at the surface, and 20 feet wide at the bottom. The Union Canal is designated as a Scheduled Ancient Monument (SAM No. 4170), having been scheduled on 15 December 2003.
Local climate
Bridge No. 47, Union Canal sits in a wetter-than-average part of the UK, with an average of 980 mm of rain a year. This makes it wetter than 79% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 58% of listed buildings.
It experiences an average of 46 freeze-thaw cycles a year, more than 87% of listed buildings. Of these, 25 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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- No EPC on record for this property
- No sale records on file
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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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