History in Structure

Embanked Aqueduct over Ochram Brook

A Grade II Listed Building in Llanfoist Fawr (Llan-ffwyst Fawr), Monmouthshire

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Coordinates

Latitude: 51.7775 / 51°46'39"N

Longitude: -3.0199 / 3°1'11"W

OS Eastings: 329731

OS Northings: 209256

OS Grid: SO297092

Mapcode National: GBR F5.Z9JJ

Mapcode Global: VH79D.LLV6

Plus Code: 9C3RQXHJ+22

Entry Name: Embanked Aqueduct over Ochram Brook

Listing Date: 15 March 1996

Last Amended: 15 March 1996

Grade: II

Source: Cadw

Source ID: 17648

Building Class: Transport

ID on this website: 300017648

Location: Carrying the canal on a hairpin bend over the Ochram Brook on the southern edge of the Community Council area.

County: Monmouthshire

Community: Llanfoist Fawr (Llan-ffwyst Fawr)

Community: Llanfoist Fawr

Locality: Llanover

Traditional County: Monmouthshire

Tagged with: Aqueduct

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Exterior

History: The Brecknock and Abergavenny Canal was promoted in 1792 to connect the upper Usk valley to the Monmouthshire Canal at Pontymoile and from there to the sea at Newport. Construction began in 1797, with Thomas Dadford as engineer, and the first section, from Gilwern to Llangynidr was completed in that year with the stretch as far as Brecon following in 1800. Work then stopped for a time with the result that the section to the Blaenavon Road east of Govilon was not completed until 1805, now with Thomas Cartwright as engineer. Further funds had to be raised and the last section from west of Llanfoist to Pontymoile was completed between 1809 and 1812, with William Crosley as engineer. Linked to tramroads, the canal was an important artery for trade in iron, lime and coal. In 1865 the Monmouthshire and the Brecknock and Abergavenny Canal Companies merged becoming the Monmouthshire and Brecon Canal Company. Later still the canal was bought out by the Great Western Railway and gradually the canal was run down until it was finally abandoned in 1962. Restoration work was begun in 1964.
Description: This aqueduct lies within the section completed in 1812 under William Crosley. The line of this canal closely follows the contours with the result that instead of locks there are embanked aqueducts on sharp bends. In several places these streams serve as feeders for the canal with half their water being diverted into the canal and the remainder passing under the aqueduct.

Masonry revetment on downhill side forms an embanked aqueduct to carry the canal around the corner and over the stream which passes under a low semicircular arch with voussoirs; no parapets. Ramped revetments with end pilaster buttresses. Under the canal is a long tunnel (approximately 20m.) through which the stream passes. Similar arch detail to west side and remains of an overflow weir.
Listed as a scarce and well-preserved engineering feature of this early C19 canal.

References: Nicholson's guides to the Waterways, vol 3, South-west
p49-55, (n.d.).
R A Stevens, Brecknock & Abergavenny and Monmouthshire Canals (Towpath Guide No 2), (Cambridge, 1974), p55.

External Links

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Other nearby listed buildings

  • II Cwm Celyn Farmhouse
    Situated on the north side of a by-lane reached off the A 4042 and over the canal. The farmhouse is set above and at right angles to the farmyard.
  • II Popular Bridge ( Canal Bridge no 87 )
    Spanning the canal to the west of Ochram Farm and to north-east of a hairpin bend; carries the lane to Cwm Celyn and beyond.
  • II Bridge No. 85 Monmouthshire and Brecon Canal
    The canal runs parallel to the A4052, separating Llanover village from Upper Llanover. It forms the eastern boundary of the Brecon Beacons National Park. The bridges are numbered from south to north
  • II Dan-yr-heol
    About 600m west of the A4052 on the road from Abergavennny to Upper Llanover and Blaenavon.
  • II Bridge No. 84 Monmouthshire and Brecon Canal
    The canal runs parallel to the A4052, separating Llanover village from Upper Llanover. It forms the eastern boundary of the Brecon Beacons National Park. The bridges are numbered from south to north
  • II Pant-bach
    About 1km north-west of Llanover village on the west side of the minor road to Upper Llanover.
  • II Barn Bridge ( Canal Bridge no 89 )
    Spanning the canal uphill and to south of Llanellen village, approximately 0.5km south of bridge No 90.
  • II Barn and attached Stable at Ty-coch
    About 30m from the house across the yard.

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