Why are there so many flood diversion gates in Huaihe River, but Wangjiaba gate is so famous?

This year, due to the influence of rainy weather, floods occurred in many areas in southern China, causing loss of life and property to our people. Daxia Dam has played a great role in controlling the expansion of flood disasters, and many dams and sluices have been built in Huaihe River basin to resist floods. What is the name of Wangjiaba sluice? The first gate of Huaihe River? It is a very important water conservancy project on the main stream of Huaihe River. So why does it have such a loud title?

One? Wangjiaba is located at the junction of the middle and upper reaches of Huaihe River, and its geographical position is extremely special and important.

The upper reaches are mostly mountainous areas, and the Huaihe River flowing through the four provinces of Henan, Hubei, Anhui and Jiangsu has a total drop of 200 meters, which can be divided into three parts: upper, middle and lower reaches. More than 300 kilometers upstream of Wangjiaba sluice, the river drop is about 178 meters. In addition, there are 27 first-class tributaries and more than 100 second-class and third-class tributaries in the mountainous area, so once the flood is discharged, it will soon reach Wangjiaba sluice.

It is about 700 kilometers from the middle and lower reaches of Huaihe River to the exit of Hongze Lake, and the ground drop is only 22 meters. However, the lower reaches of Huaihe River have gentle slopes, narrow bends and poor drainage, so it is difficult for the flood to flow downstream quickly. The water level of Wangjiaba sluice is affected by upstream rainfall, and flood discharge is a connecting link to ensure downstream safety.

Two? Wangjiaba people's dedication to the lower reaches of Huaihe River.

Wangjiaba sluice is located at the junction of the middle and upper reaches of Huaihe River. Every rainy season, there is a lot of water in the upper reaches of Huaihe River. After the Huaihe River entered the Anhui section, due to the flat terrain and slow flood discharge speed, the pressure on Huaibei levee was great. Every year in the rainstorm season, the upstream slope is steep and the water is rushing, and the flood rushes straight to Wangjiaba sluice, which makes Wangjiaba sluice bear great flood pressure. The Three Rivers Sluice in Hongze Lake from Wangjiaba Sluice to Jiangsu is the middle reaches of Huaihe River, with a geographical drop of only16m. The river slope is gentle, narrow and curved, and the drainage is not smooth, so it is difficult for the flood to flow downstream quickly. When the water level of Wangjiaba sluice rises to a certain height, if there is continuous rainfall in the upstream, the sluice will be opened for flood storage.

In order to reduce the flood peak of the Huaihe River and protect the An Lan of the Huaihe River, it has made great contributions, and it has also created people in Mengwa area to care about and take care of the overall situation. Wangjiaba spirit? .