Trees that stand in saturated soil should be closely monitored. Soils along the river don't drain quickly because of their clay composition.
Certified arborist Jack Phillips advises homeowners to be careful with trees that have been in saturated soils.
Avoid fertilizing, even the lawn near the tree, after the soil dries out.
It may sound contrary to common sense, but keep trees in lawns watered, about an inch a week, after the soil dries out.
Delay pruning until you are sure limbs are dead. Keep heavy equipment away from the root zone to prevent compacting the soil around the roots.
The root zone is generally three to four times the width of the tree's canopy. If a tree has a 30-foot spread, the critical root zone is 120 to 150 feet from the trunk. Don't drive there, don't trim, don't fertilize. Let the tree recover.
If a tree must be removed, get a professional with experience or training in removing trees in flooded areas.