History

Mid-late C19 clapper-built causeway, originally carrying a narrow-gauge rail-link from the Chwarel-y-Fedw slate Quarry to the road; modern timber-faced, steel framed bridge over the Afon Lledr. The railway, completed in 1879 apparently post-dates it.

Exterior

Slate-rubble causeway, approximately 230m long, and stretching in an arc from the road, across the river Lledr and on, terminating at the railway line. The first stretch, to the river is the longest, approximately 180m; this has a 9-span clapper section at the river end; constructed of large slatestone slabs, and with cutwaters to the upstream, convex side. The opposite side of the river has a similar 10-span clapper section; these rise slightly in the middle and are joined across the river by a modern timber bridge. The causeway is approximately 1.2m high and 1.8m wide; it is of dry-built, random rubble construction and has a metalled footpath and (in part) a C20 wire fence.

Reasons for Listing

Listed for its special historic interest as an unusually long clapper-built bridge and causeway serving a former slate quarry.

External Links

• Cadwr Listing
• Wikidata Q29495758

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

• 
  London 3: North West: North West v. 3 (Pevsner Architectural Guides: Buildings of England)
• 
  Listed Buildings, Conservation Areas and Monuments
• 
  A Buying and Owning a Listed Building: A Brief Guide
• 
  Setting up a Listed Building Heritage Partnership Agreement: Historic England Advice Note 5
• 
  Yorkshire West Riding: Sheffield and the South (Pevsner Architectural Guides: Buildings of England)
• 
  Period Property Manual (New Ed)