When the McNary navigation lock went into service in 1954, over 500,000 tons of cargo moved through it within its first year. Over the decades, the amount of river traffic has only increased. During the fiscal year of 2021, more than 5.6 million tons of commodities, mostly grain and petroleum products, passed through the McNary navigation lock.

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Photo by: Hannah Mitchell |  VIRIN: 230320-A-QM295-0004.JPG