Imnam Dam is a dam on the Bukhan River in North Korea, completed in 2003.[1]

Imnam Dam
Imnam Dam Landsat image elevation model.png
View of the dam as seen by Landsat, 3D elevation model (yellow item in the middle of the image).
Imnam Dam is located in North Korea
Imnam Dam
Location of Imnam Dam in North Korea
LocationKimhwa County, Kangwon Province, North Korea
Coordinates38°25′21″N 127°47′32″E / 38.42250°N 127.79222°E / 38.42250; 127.79222Coordinates: 38°25′21″N 127°47′32″E / 38.42250°N 127.79222°E / 38.42250; 127.79222
Construction began1986
Opening date2003
Dam and spillways
ImpoundsBukhan River
Height399 ft (121.5 m)
Length2329 ft (710 m)
Imnam Dam
Revised Romanizationimnam eonje
McCune–Reischauerimnam ŏnje

Construction began in 1986. The dam was immediately seen as a threat by the South Korean government. The Bukhan River is a tributary of the Han River, and war scenarios foresaw North Korea releasing flood waters that could engulf the South Korean capital of Seoul. Though fears of a "water attack" have diminished, 2002 satellite photos of cracks in the North Korean dam caused fears it could collapse following heavy rains. In September 2005, without warning, North Korea released a massive amount of water from a dam, causing large floods in South Korea.[1][2]

To protect itself against the perceived threat, South Korea built the Peace Dam across the border, 22 miles to the south.

Since Imnam Dam was built, water inflow to the Han River has decreased by 12 percent. This has caused environmental problems and water shortages in the Seoul metropolitan area.[3]

Imnam Dam is 710 meters wide, 121.5 meters high, and has a claimed capacity of 2.62 billion tons of water.[1]


  1. ^ a b c "S. Korea completes 'Peace Dam' to block flood attack from North". World Tribune. October 27, 2005. Archived from the original on March 3, 2016. Retrieved August 28, 2007.
  2. ^ "Fears over North Korean dam". BBC News. May 3, 2002.
  3. ^ Choe Sang-hun (August 28, 2007). "Peace Dam Still Waits for the Flood That Never Came". New York Times. Like the two Koreas, the two dams are twin brothers, born at the same time, facing each other across DMZ