Cof Cymru: National Historic Assets of Wales · Wales
Trebannws Multi-Overflow & Outlet Sluice from the Swansea Canal
Pontardawe, Neath Port Talbot, Wales
The record
- Designation
- Listed building, Grade II
- Broad class
- Transport
- Date of designation
- 26 October 1979
- Community
- Pontardawe
- Unitary authority
- Neath Port Talbot
- Country
- Wales
- Coordinates
- 51.70889, -3.86473
- Cadw reference
- 11201
Slide toward Today to fade the historical sheet and see the modern map underneath.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid 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).
Cadw's description
Location
Situated in Trebannws on the NE side of Craig-y-duke between the Swansea and the Afon Tawe
History
Late C18 staircase of sandstone weirs built in steps below the Swansea Canal in order to take surplus water from the canal to the River Tawe after periods of rain and during periods of canal drainage. The surplus canal water from the overflow and outlet was used in C19 for power for the Pheasant Bush tinplate works.
Exterior
Outlet sluice and overflow, small sandstone weirs in steps from Swansea Canal to Afon Tawe. At the top of the weirs, adjoining the tow path on the SE side is a 2-bay primary overflow chamber, said to be partly timber-lined with connecting ground sluice with working paddle gear to the north. Since 1979 this area has been partially covered and C20 control machinery inserted. The secondary overflow above the weir remains
Reason for designation
Listed as a late C18 overflow and sluice of historic importance on this major canal.
Nearby in the register
- The Old TollhouseTransportunder 1 mi
- Upper Clydach Aqueduct and Overflow on Swansea CanalWater Supply and Drainageunder 1 mi
- Memorial drinking fountain and railingsCommemorativeunder 1 mi
- Pont ar Dawe (partly in Pontardawe community)Transportunder 1 mi
Other entries of the same register within about three miles of this one, by straight line.