澧南垸分洪闸位于湖南省澧县境内澧水南岸、洞庭湖24个蓄洪垸之一澧南垸，最大分洪流量2380m3/s，属大（2）型水闸。分洪闸全长165m，溢流孔数为9孔，单孔净宽10m，溢流总净宽90m。

 

The Linanyuan diversion gate is located at Linan Embankment, which is one of the 24 flood retaintion embankments in Dongting Lake at southern bank of Lixian County of Hunan Province. Its maximum diversion valume is 2380m3/s, ranking as the large scale (2) gate. The diversion gate is 165m in total length. It has 9 overflow orifices. The net width of single orifice is 10m, and total net width is 90m.