Biyu River IV Hydropower Project is a mixed development hydropower station focusing on power generation. The contract amount is 230 million yuan. The main structures of the project include river dam, water release structures and water diversion and power generation structures. The normal pool level is 2,018m, the reservoir capacity is 34.03 million m³and the total installed capacity of the power station is 100MW. It is a medium-scale III hydro power project The river dam is an asphaltic concrete