Longtan Dam

The Longtan dam stands on the River Hong Shui He, a tributary of the Pearl River (Pearl River) in the Autonomous Region in south China 's Guangxi Zhuang. The building is mainly used for power generation, but also for water regulation. Construction began on 1 July 2001 and completion was celebrated in December 2009.

The Longtan Dam in China is another major project next to the world famous Three Gorges Project on the Yangtze River and the Xiaolangdi Reservoir on the Yellow River. The dam is 216.5 m currently the highest Roller Compacted Concrete ( RCC ) dam in the world. The use of RCC for such a large gravity dams has evolved only in the last 20 years. This is a very stiff concrete which is poured in layers and compacted with rollers. Despite the generally higher volume compared to conventional concrete curved wall building practices often results in economic benefits due to favorable material and manufacturing costs.

The dam is provided with locks, are by the ships able to overcome the height difference of 179 m. There is also a boat lift with a lifting height of 68.5 m and trough dimensions of 40 mx 10.8 mx 1.8 m, the ships can carry up to 250 t.

The underground hydroelectric power plant also impressed by its size. The dimensions of the cavity are: length 388 m, width 28 m, height 74 m. The first stream has been created in May 2007. The installed capacity is 6300 MW with angegeben'und the annual electricity production is estimated at 18.7 TWh.

The construction project required the relocation of 80,000 people. On the other hand, should be protected from flooding by the reservoir in future 3.0 million residents and 67,000 hectares of agricultural land.