Xiao Langdi Water Conservancy Project



Xiaolangdi Water Conservancy Project is 40 kilometers north of Luoyang City in Henan Province, and south of
Jiyuan City on the Yellow River. The project, with its huge reservoir, is the only control project in the section lower
than Sanmen Gorge.

The early period of construction of the Xiaolangdi project started in September 1991. On September 12, 1994
former premier, Li Peng, announced the start of the construction of the main part of the project, the largest project
for harnessing the Yellow River this century.

The aim of the project is first to control floods, reduce the danger of ice runs and decrease silt. It will also supply
water, irrigate farmland and generate power. It is one of the most complicated projects in the world, as agreed by
foreign and Chinese experts.

Xiaolangdi Water Conservancy Project Management and Development of the Yellow River is the key project, a
state the "Eighth Five" key projects, the closure in 1997, and completed by the end of 2001. Xiaolangdi in Luoyang,
Henan Province, 40 km north of the Yellow River, the 130 kilometers from the Sanmenxia Reservoir, from Zhengzhou Huayuankou under 115
kilometers, the Sanmenxia Yellow River is the only large storage capacity to achieve the control works.

Engineering work on the main part involves moving 21.22 million cubic meters of earth and stone and pouring 530,000 cubic meters of concrete.
Such a scale is only next to the Three Gorges Project. Construction will take 11 years: three years for preparation and eight years for the
construction of the main part of the project.

After completion the highest water level of the reservoir will be 275 meters above sea level. The reservoir will
have a storage capacity of 12.65 billion cubic meters and a long-term effective capacity of 5.1 billion cubic
meters. As a result, the likelihood of flooding in the lower reaches of the river will reduce from once every 60
years to once every 1,000 years. It will increase the water supply to the lower reaches by 2.16 billion cubic
meters a year. Also the reservoir will increase the acreage of farmland under irrigation from 739,000 hectares
to 1.52 million hectares. The power station will have six 300,000-KW mixed flow water turbine generating units
with a total installed generating capacity of 1.8 million KW.