the taipingwan dam (t'aep'yŏngman dam) is a gravity dam on the lower yalu river between china and north korea. it is located about northeast of dandong, liaoning province and sinuiju, north pyongan province. the dam was first designed in 1978 and construction began in october 1982. the river was diverted in september 1983 and the first generator was operational on 25 december 1986. the three remaining generators were commissioned in 1987, and the dam was complete in july of that year. china built the dam and operates its 190 mw power station. power from the dam is used by both china and north korea.