Common Problems at Dams - Inadequate Trash Rack

A properly designed trash rack prevents large debris from entering a spillway that are too large to freely pass through, while at the same time, facilitating the passage of smaller trash. Trash racks will become plugged if the openings of the trash rack are too small to allow small debris, such as leaves and twigs, to pass. Trash racks are also important to prevent children and livestock from falling into spillways.