History

Over flow weir for surplus water from the Montgomeryshire Canal, S of Burgedin Lock, located between the NE side of the canal. Before 1797 for the Montgomeryshire Canal Co. John Dadford, Engineer.

Exterior

Oval red and blue brick revetted pond receiving culverted water from the canal, with weir and spillway with central flume controlled by ratchet paddle, leading to the turbine race ending in a 3.6m deep vertical fall shaft of the former corn mill. Alongside, a subsidiary spillway and a 450m parabolic blue by-pass channel.

Reasons for Listing

One of a number of canal structures on the Montgomeryshire Canal at Wern Mill of forming a group of special interest.

External Links

• Cadwr Listing
• Wikidata Q29493192

External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.

Recommended Books

• 
  Hertfordshire (Pevsner Architectural Guides: Buildings of England)
• 
  Drawing up a Local Listed Building Consent Order: Historic England Advice Note 6
• 
  Kent: North East and East (Pevsner Architectural Guides: Buildings of England)
• 
  Listed Buildings and Other Heritage Assets
• 
  Department for Communities Listed Historic Buildings of Northern Ireland: Information Guide for the 2nd Survey of Historic Buildings
• 
  The Listed Buildings and Other Principal Structures at the Royal Gunpowder Mills Waltham Abbey