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Cof Cymru: National Historic Assets of Wales · Wales

Aberbechan Aqueduct

Llandyssil, Powys, Wales

The record

Designation
Listed building, Grade II
Broad class
Water Supply and Drainage
Date of designation
14 July 1997
Locality
Aberbechan
Community
Llandyssil
Unitary authority
Powys
Country
Wales
Coordinates
52.53268, -3.26578
Cadw reference
18540

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1637 "Particular description of Wales. Cambria seu Wallia" (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Carries the Montgomeryshire Canal over the Bechan Brook on the boundary of Llandyssil and Newtown Communities.

The western branch of the Montgomeryshire Canal from Garthmyl to Newtown was built between 1815 and 1819-21 (Josiah Jessop, engineer, John Williams, builder). The original aqueduct at Aberbechan was repaired in 1859, collapsed and was rebuilt re-using much of the original facing stone, probably in the same year. There is also evidence of later C19 repair.

Three-arched masonry aqueduct. Planned on a concave curve over the Bechan Brook, and comprising 3 segmental arches. Finely dressed stone, with hoodmoulds and a string course over the arches. Main central arch flanked by keeled cutwaters, from which spring pilasters articulating the high stone-faced wall of the trough above the arches. This wall terminates in a plain cornice, with simple cast-iron railings on the tow-path side.

Included as a fine example of a small masonry aqueduct, and an important element in the engineering of the Montgomeryshire Canal.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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