Mainstem Columbia Dams
| Name | Capacity (MW) | Location | Date authorized | Date completed | Owner Name | Lake formed |
|---|---|---|---|---|---|---|
| Mica Dam | 1,805 | British Columbia, Canada | 1964 | 1973 | BC Hydro | Kinbasket Lake |
| Revelstoke Dam | 2,480 | British Columbia, Canada | 1964 | 1984 | BC Hydro | Revelstoke Lake |
| Keenleyside Dam | 185 | British Columbia, Canada | 1964 | 1968 | BC Hydro | Raised Arrow Lakes |
| Grand Coulee Dam | 6,809 | Washington, USA | 1933 | 1942 | USBR | Franklin D. Roosevelt Lake, Banks Lake |
| Chief Joseph Dam | 2,620 | WA | 1946 | 1955 | USACE | Rufus Woods Lake |
| Wells Dam | 840 | WA | 1967 | Douglas PUD | Lake Pateros | |
| Rocky Reach Dam | 1,287 | WA | 1956 | 1961 | Chelan PUD | Lake Entiat |
| Rock Island Dam | 660 | WA | 1929 | 1933 | Chelan PUD | Rock Island Pool |
| Wanapum Dam | 1,038 | WA | 1959 | 1963 | Grant PUD | Lake Wanapum |
| Priest Rapids Dam | 955 | WA | 1950 | 1961 | Grant PUD | Priest Rapids Lake |
| McNary Dam | 980 | between WA and Oregon | 1941 | 1954 | USACE | Lake Wallula |
| John Day Dam | 2,160 | between WA and OR | 1958 | 1971 | USACE | Lake Umatilla |
| The Dalles Dam | 1,780 | between WA and OR | 1960 | USACE | Lake Celilo | |
| Bonneville Dam | 1,218 | between WA and OR | 1937 | USACE | Lake Bonneville | |
| Total | 24,817 |
Read more about this topic: List Of Dams In The Columbia River Watershed
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