Danjiangkou Dam

Danjiangkou
	Outline of the reservoir
Tributaries:	Han Jiang , Dan Jiang
Drain:	Han Jiang
Larger cities on the shore:	Danjiangkou
	Hubei , People's Republic of China
Coordinates	32 ° 33 '23 " N , 111 ° 29' 19" E Coordinates: 32 ° 33 '23 " N , 111 ° 29' 19" E
	Data on the structure
Lock type:	Gravity dam
Construction time:	1958–1974, 2005–2009 increased
Height of the barrier structure :	176.6 m
Crown length:	2 494 m
Power plant output:	900 MW
	Data on the reservoir
Storage space	20th 890 000 000 m³
Catchment area	7th 816 km²

The Danjiangkou Dam ( 丹江口水利枢纽工程 , Danjiangkou shuili shuniu gongcheng - "Danjiangkou key project for hydraulic engineering") is a so-called key project for Chinese hydraulic engineering in Danjiangkou in Hubei Province , which began in 1958 and was completed in 1974 . The dam is located on the upper reaches of the Han Jiang (a left tributary of the Yangtze River ) and on its largest tributary Dan Jiang ( 丹江 ). The reservoir has a storage capacity of 29.05 billion cubic meters (before the increase, 20.89 billion m³). The height of the gravity dam has been 176.6 meters since 2009 (162 m before the elevation). In addition to locks, there is also a ship lift with a lifting height of 50 m for ships up to 450 t.

The connected hydropower plant has a nominal output of 900 MW.

For the south-north water transfer project , the dam wall was increased by around 15 meters between 2005 and 2009 and the capacity increased by 11.6 to 29.05 billion cubic meters. 330,000 people were relocated.