Wangjiaba Sluice has a special geographical position, located in Henan and Anhui provinces, at the junction of Huaibin, Gushi and Funan counties, and also at the intersection of Huaihe River, Honghe River and Bailu River. In order to ensure that the flood does not spread downstream, people in Mengwa flood storage and detention area around Wangjiaba gave up their homes to the flood.
The function of Wangjiaba is to intercept the water in the upper reaches of Huaihe River and buy some time for the lower reaches. According to China's "Huaihe River Flood Dispatching Plan", when the water level of Wangjiaba reaches 29.30 meters and continues to rise, depending on the rain, water conditions and engineering conditions, Mengwa flood storage area will be opened in due course. Wangjiaba sluice is a flood storage and detention area in Mengwa, where many local people live. In order to protect the downstream people from the flood disaster, people in Mengwa flood storage and detention area moved away overnight, just to give up their homes for the flood. This spirit of caring for everyone is the spirit of Wangjiaba.
The special geographical conditions of Huaihe River make Wangjiaba sluice located at the intersection of three rivers of great significance, and it is called "the first sluice of Huaihe River". Wangjiaba sluice is also known as the "barometer" of flood control in Huaihe River and the "weather vane" of disaster in Huaihe River.