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Latitude: 51.9365 / 51°56'11"N
Longitude: -3.3409 / 3°20'27"W
OS Eastings: 307913
OS Northings: 227297
OS Grid: SO079272
Mapcode National: GBR YR.N1YG
Mapcode Global: VH6C0.1LN9
Plus Code: 9C3RWMP5+JJ
Entry Name: Cefn Brynich Canal Bridge Aqueduct
Listing Date: 17 January 1963
Last Amended: 28 July 2005
Source ID: 6763
Building Class: Transport
Location: Situated crossing the Usk some 180m downstream of the Lock Bridge on the road to Llanfrynach.
Locality: Cefn Brynich
Traditional County: Brecknockshire
Aqueduct carrying the Brecon & Abergavenny Canal over the Usk. the canal was empowered by an act of 1793, work began 1797, the last ten miles to Brecon completed 1800. The original surveyor for the canal was Thomas Dadford Sr, engineer to the Monmouthshire Canal and his sons John and Thomas Jr supervised the work. Thomas Dadford Jr probably designed this aqueduct. Renovated 1996-7.
Canal aqueduct, rubble stone, four broad elliptical arches with stone voussoirs, some arches lined in black brick (late C19 or early C20). Low piers of squared stone with cutwaters, raised band at level of arch springing, then cutwaters continue up and are then chamfered off at height of arch crowns. Above are flat piers reaching up to just below level of base of parapet. Raised piers each side of outer arches and ends curve outward. Parapet is on the W side only.
Graded II* as one of the major engineering achievements of the South Wales canals.
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