John Day Dam
The John Day Dam is a concrete gravity 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 Dam is a concrete gravity 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 Dam is a concrete gravity dam spanning the Columbia River in the northwestern United States. The dam features a navigation lock plus fish ladders on both sides.
Source: Wikipedia "John Day Dam" · CC BY-SA 4.0
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