John Day Dam
The John Day Dam spans the Columbia River in the northwestern United States. The dam features a navigation lock with one of the highest lifts, 110 feet, of any U.S. lock. The reservoir impounded by the dam is Lake Umatilla and is part of the Columbia River Basin system of dams. It's 16 generators produce 135 megawatts of power each.

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Photo by: Portland District  |  VIRIN: 140212-A-CE999-400.JPG