Work is due to begin on a £172,000 project to improve and repair flood defences in Somerset.
Defra has helped fund the scheme at the Pill River outfall near Minehead's Blue Anchor Bay.
The main part of the project is to built a second tunnel to allow river water to drain into the bay.
The existing tunnel will have its screen - that prevents objects that have been washed down the river from causing blockages - replaced.
New vehicle access to allow mechanical clearance of the tunnels, new emergency lighting and the installation of equipment to monitor river levels will also be undertaken.
The work should be completed by the end of the year.