- Location
- Lincolnshire
We have noticed over the past decade that some of our watercourses have deepened considerably without any intervention from us. This can mean banks and hedges get undercut and collapse.
We have installed small crude dams or weirs in places which has had some success in holding back silt, reducing depth and effectively widening the flow profile and reducing flow speed and erosion. But we have never had to do this before as usually they just fill with silt and eventually need cleaning out. Certain lengths of watercourse still do silt up naturally but by and large they seem to have become self scouring and get deeper and deeper without intervention.
What’s causing this? High winter flows? Reduction of run off and lack of silt? Anybody else seen this?
We have installed small crude dams or weirs in places which has had some success in holding back silt, reducing depth and effectively widening the flow profile and reducing flow speed and erosion. But we have never had to do this before as usually they just fill with silt and eventually need cleaning out. Certain lengths of watercourse still do silt up naturally but by and large they seem to have become self scouring and get deeper and deeper without intervention.
What’s causing this? High winter flows? Reduction of run off and lack of silt? Anybody else seen this?