River Habitat Restoration – Notton and Sydling
Sydling Water is a tributary of the River Frome (near Sydling St Nicholas, Dorchester)
August to September 2013
West Country Rivers Trust
- Install a control structure to divert flow down a bypass channel.
- Install a cattle crossing to allow access over Sydling Water whilst repairing previous poaching of the bank.
- Repair of breach to stop water leaking between the two water courses.
- Naturalisation and re-meandering of the bypass channel to provide a 0.5% gradient with a natural stream profile.
- Install large woody debris.
- Repair leaking breach.
- Install 400m of 3 strand barbed wire fencing.
- Avoid working from the SSSI.
- Worked around a possible water vole population by linking with Natural England who surveyed the site periodically
- Five Rivers Environmental Contracting are accustomed to working in and around SSS habitat, utilising special machinery that has minimal impact on existing habitats.
- Control structure erected using oak worked to ‘sweeten’ the flow through the main channel and to increase flow to the bypass channel.
- Bypass channel re-meandered including selected areas of bed re-profiling to provide pools, riffle and a back water channel.
- Re-meandering also provides various flow rates and added to available nursery habitat.
- Bed re-profiling increased the depth of natural pools adding to nursery habitat for spawning fish.
- Woody debris installations helped to naturally re-meander sections of watercourse – scour pools were very quickly created.
- Breach prevented flow of water back to main channel.
- Fencing and cattle grid works add to the robustness of the site.
- SSSI was not impacted all work was executed from the non SSSI side.