Longdon-on-Tern Aqueduct

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Longdon-on-Tern Aqueduct
Aqueduct, Longdon-on-Tern - geograph.org.uk - 1067495.jpg
Carrying: Shrewsbury Canal (now disused)
Crossing: River Tern
Location: 52°44’13"N, 2°34’4"W
Length: 186 ft
No. of spans: 4
Material: Cast iron
Architect: Thomas Telford

The Longdon-on-Tern Aqueduct, near Longdon-on-Tern in Shropshire, was one of the first two canal aqueducts to be built from cast iron.


The cast-iron canal aqueduct was designed by Thomas Telford and built in 1796 to carry the Shrewsbury Canal across the River Tern near Longdon-on-Tern in Shropshire.[1] The 186-ft aqueduct was opened one month after Benjamin Outram's 44-ft cast-iron Holmes Aqueduct on the Derby Canal, the world's first cast iron canal aqueduct.[2][1] Since the closure of the Shrewsbury Canal in 1944, the aqueduct has been disused.[1] The aqueduct is a Grade-I listed building and has been on the register since 30 March 1971.[2]


The canal was carried in a cast iron trough 9 ft wide, 3 ft deep and 186 ft long and divided in four spans, each of 47 ft 8 in.[1]


("Wikimedia Commons" has material
about Longdon-on-Tern Aqueduct)
  1. 1.0 1.1 1.2 1.3 Sivewright, W.J., ed (1986). Civil Engineering Heritage: Wales & Western England. For the Institution of Civil Engineers by Thomas Telford. pp. 179-180. ISBN 072770236X. 
  2. 2.0 2.1 "Shrewsbury Canal, Longdon Aqueduct (Aqueduct on the Shrewsbury Canal) Shrewsbury Canal, the Aqueduct of the Shrewsbury Canal". Historic England. https://www.historicengland.org.uk/listing/the-list/list-entry/1037006. Retrieved 19 November 2017.