Nierji Dam

Nierji Dam
Location of Nierji Dam
Country	China
Location	Morin Dawa Daur Autonomous Banner
Coordinates	48°29′31″N 124°31′38″E / 48.49194°N 124.52722°E / 48.49194; 124.52722Coordinates: 48°29′31″N 124°31′38″E / 48.49194°N 124.52722°E / 48.49194; 124.52722
Status	Operational
Construction began	2001
Opening date	2006
Dam and spillways
Type of dam	Embankment, rock-fill
Height	41.5 m (136 ft)
Length	7,180 m (23,556 ft)
Impounds	Nen River
Spillway capacity	20,300 m3/s (716,888 cu ft/s)
Reservoir
Capacity	8,610,000,000 m3 (6,980,241 acre·ft)
Catchment area	66,400 km2 (25,637 sq mi)
Power station
Commission date	May 2005
Turbines	4 x 62.5 MW Kaplan-type[1]
Installed capacity	250 MW

The Nierji Dam is an embankment dam on the Nen River just north of Morin Dawa and on the border of Inner Mongolia and Heilongjiang Province, China. The dam was constructed between 2001 and 2006 for several purposes to include hydroelectric power generation, flood control, navigation and water supply.

Design

The dam is a rock-fill type and 41.5 m (136 ft) tall at its highest point. The total length of the dam is 7,180 m (23,556 ft) which includes the 1,676 m (5,499 ft) long main dam with an asphalt core. The dam creates a reservoir with a capacity of 8,610,000,000 m³ (6,980,241 acre·ft) and sits at the head of a 66,400 km² (25,637 sq mi) catchment area. The dam's spillway consists of 11 floodgates and has a maximum discharge capacity of 20,300 m³/s (716,888 cu ft/s). The dam's power station contains four 62.5 MW Kaplan turbine-generators for a total installed capacity of 250 MW.^[2]

References

1. ^ "Hydroelectric Power Plants in China - Jilin & Heilongjiang". IndustCards. http://www.industcards.com/hydro-china-jilin-heilongjiang.htm. Retrieved 27 August 2011. 
2. ^ "Ni'erji Reservoir Overview" (in Chinese). Tourism Network Technology Co., Ltd.. http://www.17u.com/destination/s_detail_17975.html. Retrieved 27 August 2011.