Longyangxia Dam

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The Longyangxia Dam with the Longyangxia hydropower plant located in China's Qinghai Province on the Qinghai -Tibet Plateau at 2600 m altitude on the Yellow River ( Huanghe ). The purpose of the dam is hydroelectric power production and flood protection.

The hydropower plant is from the Longyangxia gorge on the border of the circles Gonghe and Guinan and about 1.5 km. With four turbines of 320 MW each total of 1280 MW will be generated.

The maximum memory space of the reservoir is 27,419 ( with 27,630 indicated) million cubic meters tall, with full back there are 24,700 million m³. The highest water level lies at 2607 m above sea level. NN.

The construction work began in 1978. With the impounding of the dam was started in October 1986 and commissioning took place in 1989.

The shut-off is a concrete arch-gravity dam. It has an arc length of 396 m at the crown; whole top of the wall is 1277 m long. The concrete volume of the main building is 1.53 million cubic meters, in total 3.16 million m³.

At the time, this dam was the highest dam in China; today it is surpassed by the Ertan Dam and several even more are under construction. Another major dam on the upper Yellow River is the Liujiaxia Dam and in the lower reaches the Sanmenxia Dam.