
The St. Louis District is dredging the Mississippi to keep the 9-foot navigation channel open amid low water, with river levels about 8 feet below the long-term average. Dredges from other districts have been mobilized for channel maintenance.
Declining levels are affecting barge shipping just as Midwest harvest begins.
Dredging and reduced draft raise barge freight costs and limit grain loadings on the Mississippi, which pressures farmgate prices and export logistics.
Not enough comparable past events yet for a historical read.
After 359 past bearish logistics events, Corn moved a median -0.3% over 5 sessions (44% higher; middle half -1.5% to +1.5%), and -0.5% over 20.
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.