John Day Dam photograph

John Day Dam

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Height 5600 (cm)
Opened 1971
CreateLake Umatilla
Locations Sherman County
County, Washington
United States
Annual generation8,418 GWh (2009)
Turbines16 × 135 MW
Date of Reg.
Date of Upd.
ID1240122
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About John Day Dam


The John Day Dam is a concrete gravity run-of-the-river dam spanning the Columbia River in the northwestern United States. The dam features a navigation lock plus fish ladders on both sides. The John Day Lock has the highest lift of any U. S. lock.

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