the river and its tributaries will overflow that levee within the next several days. what they are trying to do is stop the erosion from hitting farm lands on this supposedly dry side of the mississippi and its tributaries. i can tell you that's not dry any more. the water has started to seep over on the other side that's supposed to be dry. they've been rushing to get this project completed and managed to complete that section today, john. >> what is your sense, casey? officially officials are warning people it's coming. it's days away, it's coming. sometimes advanced warning is great because people have time to move their things out of the way. sometimes emergency officials say if you tell them early they lose their sense of urgency. >> that is what happens. they think they'll get the people out. one of the problems but this pr event is so slow-moving it will last for a really long time.