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Cof Cymru: National Historic Assets of Wales · Wales

Milepost north of Five Locks

Pontnewydd, Torfaen, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
31 July 2019
Welsh name
Postyn milltir i’r gogledd o Five Locks
Community
Pontnewydd
Unitary authority
Torfaen
Country
Wales
Coordinates
51.66723, -3.03145
Cadw reference
87788

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 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Approx. 100m N of Five Locks Road, on the E side of the canal on the towpath side.

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 Jnr. 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 Crossley as engineer. The Crumlin arm was constructed 1792-9 and connected to the main canal at Crindau. Linked to the tramroads the canal was an important artery for trade in iron, lime and coal.

In 1848 the Monmouthshire Canal Company became the Monmouthshire Railway and Canal Company. The milepost bears the name of Monmouthshire Canal Company so must predate this. In 1865 the Monmouthshire and the Brecknock & Abergavenny Canal Companies merged becoming the Monmouthshire and Brecon Canal Company. Later still in 1880 the canal was bought out by the Great Western Railway and gradually the canal was run down until it was abandoned finally in 1962. Restoration work was begun in 1964, and the canal is once again open between Pontymoile and Brecon with the title Monmouthshire and Brecon Canal.

A small cast iron mile post. An oval carries the number ‘6 ¾’ (north of the beginning of the canal in Newport). Below this a small plaque on the post 'M C Co.', Monmouthshire Canal Company.

Included for its special architectural interest as a rare surviving example of a canal marker post from the early operation of the canal. The canal is important for its historic interest as a key part of the early industrial development of the Gwent valleys and the development of transport links from the sources of production to the docks at Newport.

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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