Columbia and Snake Rivers Hydroelectric Project Information

General Information

These web pages provide information about the location, construction date, pool elevation, and powerhouse capacity of the major federal and non-federal hydroelectric projects in the Columbia Basin. All information is courtesy of U.S. Army Corps of Engineers, NWD unless otherwise noted. The information and images are from the Army Corps of Engineers 1989 publication, "Columbia River and Tributaries Review Study: Project Data and Operating Limits" unless otherwise noted. USACE makes no warranties concerning the accuracy, reliability, or suitability of the data for any particular purpose. Pages include links to the owners/operators hydroelectric project web sites with visitor/tour information and further information. The map and these web pages cover only the major federal and non-federal dams in the region.

Projects List

Projects River Owner/Operator Type
Bonneville Dam Columbia River USACE Portland District Federal
Chief Joseph Dam Columbia River USACE Seattle District Federal
Dworshak Dam North Fork Clearwater River USACE Walla Walla District Federal
Grand Coulee Dam Columbia River Bureau of Reclamation Federal
Ice Harbor Dam Snake River USACE Walla Walla District Federal
John Day Dam Columbia RiverUSACE Portland DistrictFederal
Little Goose Dam Snake RiverUSACE Walla Walla DistrictFederal
Lower Granite Dam Snake RiverUSACE Walla Walla DistrictFederal
Lower Monumental Dam Snake RiverUSACE Walla Walla DistrictFederal
McNary Dam Columbia RiverUSACE Walla Walla DistrictFederal
The Dalles Dam Columbia RverUSACE Portland DistrictFederal
Brownlee Dam Snake RiverIdaho Power CompanyNon-Federal
Hells Canyon Dam Snake RiverIdaho Power CompanyNon-Federal
Oxbow Dam Snake RiverIdaho Power CompanyNon-Federal
Priest Rapids Dam Columbia RiverGrant County PUDNon-Federal
Rock Island Dam Columbia RiverChelan County PUDNon-Federal
Rocky Reach Dam Columbia RiverChelan County PUDNon-Federal
Wanapum Dam Columbia RiverGrant County PUDNon-Federal
Wells Dam Columbia RiverDouglas County PUDNon-Federal

Northwest Hydroelectric Information

Additional Hydroelectric Power Information

Bonneville DamBrownlee DamChief Joseph DamChief Joseph DamDworshak DamGrand Coulee DamHells Canyon DamIce Harbor DamJohn Day DamLittle Goose DamLower Granite DamLower Monumental DamMcNary DamOxbow DamPriest Rapids DamRock Island DamRocky Reach DamThe Dalles DamThe Dalles DamWanapum DamWells DamChelan County PUDDouglas County PUDGrant County PUDIdaho Power CompanyUSACE Portland DistrictUSACE Seattle DistrictUSACE Walla Walla DistrictUS Bureau of Reclamation

Columbia Basin Research provides these web pages for informational purposes only. Columbia Basin Research is not affiliated with any hydroelectric project. Please contact the Owner/Operator for questions about operations, tours, and any other matter.
Thank you.