The spillway of Nagitan hydropower station is composed of five overflowing orifices and one sand flushing orifice, the maximum discharge is 9230 m3/s and the energy is dissipated by hydraulic jump.

• 纳吉滩水电站底流消能的主要问题是小流量时消力池内水深不足,呈远驱水跃,消能效果极差。