A scheme to help reduce the risk of flooding to homes and businesses in part of Lincolnshire is under way.
The Environment Agency has begun to remove reeds from the River Bain and River Waring to protect properties in Horncastle.
The agency said the work was necessary to maintain water flow after rapid weed growth across the county in the summer.
De-silting works are also taking place to remove sediment disturbed as a result of the weed removal.
Ian Russell, of the Environment Agency, said: "Weed growth across Lincolnshire was exceptional this summer.
"With the wet winter period approaching, it is important that we now remove the excess growth to maintain water flows away from Horncastle and manage flood risk."