Research in Shropshire saw the barriers deliberately rise water levels upstream to slow down river flow.
The study found river barriers similar to those built by beavers can protect communities at risk of flooding by storing water upstreamRiver barriers similar to those built by beavers can protect communities at risk of flooding, a study has found.
Dr Catherine Wilson, of Cardiff University's School of Engineering, said: "We show that leaky barriers are effective in slowing down the flow of the river during periods of rainfall, storing up vast quantities of water which would otherwise rush through, causing damage to communities downstream.Dr Wilson added the leaky barriers were not only sustainable but a "low-cost solution", costing between £50 and £500.
The scientists said findings from their study could be used by government and industry to develop flood defences for smaller, more frequent storms and to help create an approach for modelling leaky barriers during larger storms.
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