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A 2021 Infrastructure Report Card overview describes the roughly 12,000 miles of US inland navigation channels and their locks and dams. It cites a $6.8 billion construction backlog and lock closures totaling 5,000 hours between 2015 and 2019, with delays costing up to $739 per hour per tow.
Lock delays raise barge transport costs and can constrain grain movement from the Midwest, supporting Gulf basis differentials when unresolved.
Not enough comparable past events yet for a historical read.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.