围堤湖分洪闸位于湖南省汉寿县境内沅水尾闾南岸、洞庭湖24个蓄洪垸之一围堤湖垸，最大分洪流量3190m3/s，属大（2）型水闸。分洪闸全长175m，口门宽度447m，。闸孔总净宽140m，单孔净宽10m，共14孔。

 

Weidihu diversion gate is located at Weidihu Embankment, which is one of the 24 flood retaintion embankments in Dongting Lake at southern bank of Yuanshui river flux within Hanshou County of Hunan Province. Its maximum diversion valume is 3190m3/s, ranking as the large Scale (2) gate. The diversion gate is 175m in total length, 447m in width.The net width of all gate orifices is 140m, and net width of single orifice is 10m, with 14 orifices in total.