This is a list of dams and reservoirs in the U.S. state of Idaho.
KeyLocated on state borderS=State of IdahoUSACE=U.S. Army Corps of EngineersUSBR=U.S. Bureau of Reclamation
NameRiverTypeHeightReservoirCapacityCapacityOwnerBuiltFtmacre.ftkm3MWAlbeni Falls DamPend Oreille RiverConcrete gravityLake Pend Oreille?USACE1955Alexander DamBear RiverConcrete gravityAlexander Reservoir14PacifiCorp1925American Falls DamSnake RiverConcrete gravityAmerican Falls Reservoir112USBR1978Anderson Ranch DamSouth Fork Boise RiverEarthfillAnderson Ranch Reservoir40USBR1950Black Canyon Diversion DamPayette RiverConcrete gravityBlack Canyon Reservoir10USBR1924Arrowrock DamBoise RiverConcrete archArrowrock Reservoir0USBR1915Blackfoot DamBlackfoot RiverEarthfillBlackfoot Reservoir0Idaho Bureau of Indian Affairs1911Bliss DamSnake RiverConcrete gravityBliss Reservoir75Idaho Power1950Brownlee DamSnake RiverEarthfillBrownlee Reservoir585.4Idaho Power1958C. J. Strike DamSnake RiverEarthfillC. J. Strike Reservoir82.8Idaho Power1952Cabinet Gorge DamClark ForkConcrete archCabinet Gorge Reservoir231Avista Utilities1953Cascade DamNorth Fork Payette RiverEarthfillLake Cascade12.4USBR1948Cedar Creek DamCedar CreekEarthfillCedar Creek Reservoir0Cedar Mesa Canal & Reservoir Co.1920Crane Creek DamCrane CreekEarthfillCrane Creek Reservoir?Crane Creek Reservoir Administrative Board1912Deadwood DamDeadwood RiverConcrete archDeadwood Reservoir0USBR1931Dworshak DamNorth Fork Clearwater RiverConcrete gravityDworshak Reservoir460USACE1973Fish Creek DamFish CreekConcrete multiple archFish Creek Reservoir0Carey Valley Reservoir Co.1923Hells Canyon DamSnake RiverConcrete gravityHells Canyon Reservoir391Idaho Power1967Island Park DamHenrys ForkEarthfillIsland Park Reservoir0USBR1939Little Camas DamLittle Camas CreekEarthfillLittle Camas Reservoir0Mountain Home Irrigation District1912Little Wood River DamLittle Wood RiverEarthfillLittle Wood River Reservoir3USBR1939Lucky Peak DamBoise RiverEarthfillLucky Peak Lake101USACE1955Mackay DamBig Lost RiverEarthfillMackay Reservoir0Big Lost River Irrigation District1918Magic DamBig Wood RiverEarthfillMagic Reservoir9Magic Reservoir Hydroelectric, Inc.1910 McArthur Lake Deep Creek Earthfill McArthur Lake Idaho Fish and Game 1942Milner DamSnake RiverRockfillMilner Lake58.3Milner Dam, Inc.1905Minidoka DamSnake RiverEarthfill/concreteLake Walcott28USBR1906Mormon DamMcKinney CreekEarthfillMormon Reservoir0Twin Lakes Reservoir & Irrigation Co.1908Oakley DamGoose CreekEarthfillLower Goose Creek Reservoir0Oakley Canal Co.1916Oneida DamBear RiverConcrete gravityOneida Narrows Reservoir30PacifiCorp1913Paddock Valley DamLittle Willow CreekEarthfillPaddock Valley Reservoir0Little Willow Irrigation District1949Ririe DamWillow CreekEarthfillRirie Reservoir0USBR1977Oxbow DamSnake RiverRockfillOxbow Reservoir190Idaho Power1961Palisades DamSnake RiverEarthfillPalisades Reservoir176.5USBR1957Post Falls DamSpokane RiverConcrete gravityCoeur d'Alene Lake14.75Avista Utilities1906Priest Lake DamPriest RiverConcrete gravityPriest Lake?Idaho Department of Water Resources1978Sage Hen DamSage Hen CreekEarthfillSage Hen Reservoir0Squaw Creek Irrigation Company1938Salmon Falls DamSalmon Falls CreekConcrete archSalmon Falls Creek Reservoir0Salmon River Canal Co.1911
See also
List of lakes of Idaho List of dams in the Columbia River watershed List of dam removals in Idaho