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Gates to navigation locks, Bonneville Dam, Oregon. This is a lift lock, seventy-five feet wide and five hundred feet long. This is the highest single lift lock in the world, being fifty-nine feet high by Russell Lee

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Gates to navigation locks, Bonneville Dam, Oregon. This is a lift lock, seventy-five feet wide and five hundred feet long. This is the highest single lift lock in the world, being fifty-nine feet high by Russell Lee

More