Former filter beds on Afon Sawdde below Llyn y Fan Fach Reservoir, including weirs is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 16 February 2022. Filter beds.
Former filter beds on Afon Sawdde below Llyn y Fan Fach Reservoir, including weirs
- WRENN ID
- over-lead-nightshade
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Country
- Wales
- Date first listed
- 16 February 2022
- Type
- Filter beds
- Source
- Cadw listing
Description
Afon Sawdde flows into the filter beds on the upstream (S) side through a shallow stone arch. There are 2 filter beds, with concrete side walls, either side of a central channel. On the downstream side is a dam wall of quarried rock-faced stone to the outer beds, and smoother dressed stone to the central weir.
On the upstream side there are 3 weirs of stone and concrete, and a rubble-stone parapet alongside the track on the E side, which has openings with slots for stop planks.
Detailed Attributes
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