FAQ: Do beavers pose a flooding threat?
In general terms, beavers can actually help reduce the risk of flooding lower down in river systems by building dams and moderating water flow. The modifications made to the streams can raise the water table locally, creating wetland areas to the benefit of biodiversity. Evidence from elsewhere in Europe shows that instances of beaver dams creating undesirable flooding are uncommon, localised and usually small-scale. In these situations dams are simply removed or pipes (‘beaver deceivers’) are placed through them to manage water levels.
Beaver damming activities will be tracked on the ground by the Scottish Beaver Trial field staff. The impact of damming by beavers will be monitored as part of the independent scientific monitoring undertaken by Scottish Natural Heritage.
