The Environment Agency is looking at spending nearly �1m to prevent flooding around the River Plym in Devon.
The project would involve building three screens to stop debris blocking the river in Plympton, Plymouth.
The current screens at Long Brook - which is a main tributary of the Plym - do not meet the current health and safety standards.
The Environment Agency is now looking at replacing the screens with modern ones at a cost of more than �900,000.
If completed they would protect local houses and businesses.