Abstract: The floating debris obstructing row is placed on the water inlet of a hydropower station. It is floating on the water surface and rising or falling along with waterlevel fluctuation. It is used to obstruct the floating objects with size larger than certain specification. Two engineering practical examples of floating debris obstructing row (floating trash rack), which are obviously different in structure, were introduced. Based on the examples, a new envisage of floating debris obstructing row, which would adopt the floating box structure, were put forward.

Key words: floating debris obstructing row, floating trash rack, floating box structure, stability, tip, structure design