If you have at least 100 bushels of damaged grain, it probably will pay to either dry it or ensile it if the grain will be fed and you have a silo. Greiner said you must act fast to save wet corn before it molds.
Wet grain can start molding in a few hours in warm weather.
Do as good of a job as possible of separating the dry corn from the wet. Moisture won't travel more than a few inches above the floodline in the corn bin or crib. A pneumatic grain conveyor, that can probably be leased from a local elevator, will suck dry grain from the top of the bin like a vacuum cleaner. Re-store the dry corn. Dry the wet corn as soon as possible after the water recedes, then it can be re-stored or sold.