Craigellachie Bridge

Bridge in Moray, Scotland From Wikipedia, the free encyclopedia

Craigellachie Bridge is a cast iron arch bridge across the River Spey at Craigellachie, near to the village of Aberlour in Moray, Scotland. It was designed by the renowned civil engineer Thomas Telford and built from 1812 to 1814. It is a Category A listed structure.[1]

Coordinates57°29′27.15″N 3°11′37.23″W
Carries
CrossesRiver Spey
LocaleMoray
Quick facts Coordinates, Carries ...
Craigellachie Bridge
East elevation
Coordinates57°29′27.15″N 3°11′37.23″W
Carries
CrossesRiver Spey
LocaleMoray
Named forCraigellachie
Maintained byMoray Council
Characteristics
MaterialCast iron and granite
Total length150 feet (46 m)
Width13 feet 6 inches (4 m)
Height34 feet (10 m)
History
DesignerThomas Telford
Construction start1812
Construction end1814 (1814)
RebuiltRestored 1964
Closed1972 (to road traffic)
Replaced byReinforced concrete beam bridge (1972)
Listed Building – Category A
Official name
Craigellachie, Old Bridge Over River Spey (telford Bridge)
Designated22 February 1972
Reference no.LB2357
Location
Interactive map of Craigellachie Bridge
Close

Construction

Illustration of the bridge from the 1838 Atlas to the Life of Thomas Telford.

The bridge has a single span of 150 feet (46 m) and was revolutionary for its time, in that it used an extremely slender arch which was not possible using traditional masonry construction. The ironwork was cast at the Plas Kynaston iron foundry at Cefn Mawr, near Ruabon in Denbighshire by William Hazledine, who cast a number of Telford bridges. The ironwork was transported from the foundry through the Ellesmere Canal and Pontcysyllte Aqueduct then by sea to Speymouth, where it was loaded onto wagons and taken to the site. Testing in the 1960s revealed that the cast-iron had an unusually high tensile strength. This was probably specified by Telford because, unlike in traditional masonry arch bridges, some sections of the arch are not in compression under loading.

At each end of the structure there are two 50 feet (15 m) high masonry mock-medieval towers, featuring arrow slits and miniature crenellated battlements.

History

The bridge was in regular use until 1963, when it was closed for a major refurbishment. A plaque records the completion of this work in 1964. The side railings and spandrel members were replaced with new ironwork fabricated to match the originals. A 14 ton restriction was placed on the bridge at this point. This, along with the fact that the road to the north of the bridge takes a sharp right-angled turn to avoid a rock face, made it unsuitable for modern vehicles. Despite this, it carried foot and vehicle traffic across the River Spey until 1972, when its function was replaced by a reinforced concrete beam bridge built by Sir William Arrol & Co. which opened in 1970 and carries the A941 road today. Telford's bridge remains in good condition, and is still open to pedestrians and cyclists. The bridge has been given Category A listed status by Historic Scotland and has been designated a civil engineering landmark by the Institution of Civil Engineers and American Society of Civil Engineers.[2]

In 1994, it hosted a parade upon the amalgamation of The Gordon Highlanders and The Queen's Own Highlanders (Seaforth and Camerons) to form The Highlanders (Seaforth, Gordons and Camerons). A plaque has been fitted to the bridge parapet to commemorate this.

Moray Council maintain the bridge, but it is not known who owns it. In November 2017 efforts were started to discover the owner.[3]

Usage in media

Scottish composer William Marshall saw the bridge completed in 1814, and included a strathspey named for it, Craigellachie Brig, in his 1822 collection of tunes.[4]

The bridge was commemorated on a Royal Mail postage stamp in 2015.[5]

It also features in the artwork and logos of Spey Valley Brewery who brew an 1814 lager in commemoration of the bridge.[6]

See also

References

Bibliography

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