The Army Corps of Engineers conducted a test opening of the Bonnet Carré Spillway on Monday, operating one of its 350 bays briefly. The Mississippi River keeps rising after heavy rain upstream, and the Corps is monitoring whether flow will exceed the 1.25 million cubic feet per second trigger for an actual opening.
Flood-driven spillway operations near New Orleans can disrupt Mississippi barge traffic and grain export logistics, which can lift barge freight costs and widen Gulf basis. A confirmed opening would be a logistics risk for corn and soybean shipments.
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.