Home›1942 establishments in Washington (state)›Đập Grand Coulee🌐Tiếng ViệtEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtРусскийالعربيةفارسی한국어中文日本語EntityQ930391· pop 37· linked from 309 articlesĐập Grand Couleeconcrete hydroelectric gravity dam on the Columbia River in Washington, United StatesKey factsCountryUnited StatesLocationGrant and Okanogan counties, WashingtonPurposePower, regulation, irrigationStatusOperationalConstruction beganJuly 16, 1933 , (92 years ago) ( 1933-07-16 )Opening dateJune 1, 1942 , (84 years ago) ( 1942-06-01 )Construction costOriginal dam: $163 million 1943 , Third powerplant: $730 million 1973OperatorBureau of ReclamationType of damConcrete gravityImpoundsColumbia RiverHeight550 ft (168 m)Length5,223 feet (1,592 m)On the mapAvailable in 35 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةAlbanianBahasa IndonesiaConnectionsUnited States Bureau of ReclamationEntityFranklin D. RooseveltPersonCategories1942 establishments in Washington (state)Buildings and structures in Grant County, WashingtonBuildings and structures in Okanogan County, WashingtonDams completed in 1942Dams in Washington (state)Dams on the Columbia RiverDams with fish laddersEnergy infrastructure completed in 1942Energy infrastructure completed in 1974Gravity damsHistoric American Engineering Record in Washington (state)