Country China Opening date 2006 Impounds Nen River Impound Nen River | Status Operational Type of dam Embankment, rock-fill Construction began 2001 | |
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Location Morin Dawa Daur Autonomous Banner Similar Zipingpu Dam, Xiaolangdi Dam, Longtan Dam, Longsha Park, Ust‑Ilimsk Hydroelectric Power St | ||
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.