Natural Resources Wales has started a project to boost wildlife and help reduce the risk of flooding in mid Wales.

Conifer trees are being used to make ‘leaky dams’ in upland areas on the Merin river, a tributary of the Rheidol which runs through the Myherin forest, near Devil’s Bridge.

The project, which is the first of its kind in the area, will slow the flow of the river.

After heavy rain the dams will divert water across the land, while broadleaved trees and scrub will further reduce the speed of the water.

The works will create a paradise for wildlife and help to reduce the risk of flooding downstream, the NRW said.

Nick Young, mid Wales conservation and heritage manager for Natural Resources Wales, said: “This project is exciting because it has so many benefits. It uses our natural resources in a way that benefits people and nature.

“The conifer trees growing along the river were shading everything out, so taking them away will help more native species grow.

“Building the dams will divert water across the land to create more natural meanders and a wetland habitat that could one day provide an excellent home for otters and water voles.

“It will slow down the rate of water entering the Rheidol from this catchment when we have a lot of rain.

“And the benefits don’t stop there because the woody debris from each dam will help feed insects and fish living in the river.”

NRW is building around 25 dams along the river, each one about a metre tall.

See this week’s south papers for the full story, available in shops and as a digital edition tomorrow