
Heavy snowpack and spring runoff have pushed the Upper Mississippi at St. Paul into major flood stage, with a crest of 18.8 feet expected April 27. American Commercial Barge Line reported the river closed to barges from Meekers north to St. Paul, with locks 17 through 3 shut for 12 to 15 days.
Closed locks stop barge movement of grain from the Upper Midwest, widening the gap between river and rail prices and pressuring Gulf-bound corn and soybean meal flows, which can weigh on local cash bids and lift freight costs for feed buyers.
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.
After 297 past bearish logistics events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.5% to +1.8%), and +0.7% 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.