It is 5.7 kilometers away from Tongjiang County, and it is a large reservoir mainly for flood control, taking into account water supply and hydropower generation. The control area of the basin is 1807 square kilometers, adjacent to Shi Niu Zui New District, and the dam site area can be directly reached by 20 1 provincial highway. The total storage capacity of the whole reservoir is10.47 billion cubic meters, and the annual water supply is 3 105 million cubic meters. The axis of the dam crest is 508.5 meters long, the maximum dam height is 74 meters, the installed capacity of the power station is 20 MW, and the annual power generation is 56.09 million kWh. After it is put into use, it will solve the water problem of 300,000 people in the county.