Full Report for Listed Buildings
The list description is not intended to be a complete inventory of what is listed: it is principally intended to aid identification. By law, the definition of a listed building includes the entire building (i) and any structure or object that is fixed to the said building and ancillary to it and (ii) any other structure or object that forms part of the land and has done so since before 1 July 1948, and was within the curtilage of the building, and ancillary to it, on the date on which said building was first included in the list, or on 1 January 1969, whichever was later.
Summary Description
Reference Number
22327
Building Number
Grade
II
Status
Designated
Date of Designation
14/09/1999
Date of Amendment
14/09/1999
Name of Property
Cwrt-y-mwnws Lock, Monmouthshire and Brecon Canal
Address
Location
Unitary Authority
Newport
Community
Allt-yr-Yn
Town
Locality
Allt-yr-yn
Easting
328937
Northing
188619
Street Side
Location
Isolated location, approximately 200 metres NW of Cwrt-y-mwnws. M4 motorway immediately N.
Description
Broad Class
Transport
Period
History
The eastern branch of the Monmouthshire and Brecon Canal was authorised by Act of Parliament in 1792, and officially opened in 1799. It ran from Newport to Pontnewynydd, and was engineered by Thomas Dadford Jnr. The canal connected with several tramroads belonging to the same company (Monmouthshire Canal Navigational Company), carrying coal down to the wharves. The branch was 17.7 km long, and rose 136.2 metres through 42 locks. The contemporary western branch, 19 km long, ran to Crumlin. In 1812, the eastern branch was connected to the Brecon and Abergavenny Canal at Pontymoile Basin, and this became the main line. In 1853-55, the Monmouthshire Railway and Canal Company built a railway down to Newport, the company amalgamating with the Great Western Railway in 1880. The canal then became increasingly disused. The Crumlin branch closed in 1949, the main line in 1962.
Exterior
Rectangular lock chamber of squared sandstone rubble; tooled sandstone copings. Rebate for removed lock gate to E; splayed retaining cheek walls beyond. Rubble weir at W end, with splayed retaining walls beyond. C20 timber bridge over lock chamber. Brick-lined overflow culvert to S.
Interior
Reason for designation
Listed as a significant element of the engineering works associated with the Monmouthshire and Brecon Canal.
Cadw : Full Report for Listed Buildings [ Records 1 of 1 ]
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