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Northwestern University Transportation Center discusses persistent Upper Mississippi flooding, sedimentation and sandbars that reduce channel depths and barge capacity. The piece features an interview with an Army Corps dredging manager in St. Paul.
Reduced channel depth and barge capacity on the Upper Mississippi raise transport costs for Midwest grain, which can widen basis and weigh on farm prices.
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.