Cof Cymru: National Historic Assets of Wales · Wales
By-Pass Pond and Spillway with Sluice-Gate to south of upper lock chamber
Carreghofa, Powys, Wales
A Grade II listed building in Carreghofa Locks, Carreghofa, Powys, designated on 5 April 1993.
The record
- Designation
- Listed building, Grade II
- Broad class
- Transport
- Date of designation
- 5 April 1993
- Locality
- Carreghofa Locks
- Community
- Carreghofa
- Unitary authority
- Powys
- Country
- Wales
- Coordinates
- 52.77478, -3.10650
- Cadw reference
- 14186
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 LibrariesLlyfrgell Genedlaethol Cymru – The National Library of Wales
5 historical maps cover this location, the earliest the 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).
Historical maps covering this location
- 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
- 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
- 1897 · 137 Oswestry (Hills) (David Rumsey Map Collection, Stanford Libraries)
- 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
- 1916 · Sheet 60. Shrewsbury. (David Rumsey Map Collection, Stanford Libraries)
Cadw's description
History
Probably 1821 when the Tanat Feeder was realigned to enter above the upper lock. The bypass helped regulate the water supply at N end of Montgomeryshire Canal.
Exterior
By-pass pond with curving rubble revetment, culverts brick-lined with repairs in later C19 blue brick. Spillway refaced in modern engineering bricks. Paddle gear in centre of spillway; rack and pinion system built on wooden frame with separately braced ratchet catch.
Reason for designation
Included for group value with the other canal structures in an exceptional location at Carreghofa Locks.
Nearby in the register
- Upper Lock ChamberTransportunder 1 mi
- Toll Gauger's Hut to E of No 1 The LocksTransportunder 1 mi
- Pigsty with Walled Pen to E of No 1 The LocksAgriculture and Subsistenceunder 1 mi
- Lock Gates and Paddle GearTransportunder 1 mi
Other entries of the same register within about three miles of this one, by straight line.