US Coast Guard crews on the Mississippi River are struggling to keep barge traffic moving as falling water levels shrink the navigable channel to about 100 meters wide and 2.7 meters deep. Buoys mark shallow spots, and barges that stray outside the channel risk becoming stuck on rocks or sandbars.
Narrower, shallower channels force barges to lighten loads and move one way at a time, cutting capacity for grain and other farm products. Reduced barge availability raises freight costs and widens basis at Gulf-bound origins, supporting prices for Gulf-delivered corn and soybeans relative to inland values.
Not enough comparable past events yet for a historical read.
After 284 past neutral logistics events, Corn moved a median -0.0% over 5 sessions (49% higher; middle half -1.3% to +1.4%), and -0.2% over 20.
After 230 past neutral logistics events, Soybeans moved a median +0.4% over 5 sessions (55% higher; middle half -1.4% to +2.0%), and +0.1% 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.