let's talk about arkansas this morning. there are hundreds of roads that are under water right now because of this record flooding that's continuing to drench the heartland. arkansas river broke through a major levee. that puts thousands of homes in danger. experts there say these levees have never held this much water for this long. here's cnn's natasha chen. >> this is rogers avenue. >> reporter: this is the lunchtime traffic in ft. smith these days. >> we've got a doughnut shop down there. autoparts store, tuxedo rentals, liquor store. >> reporter: it took about a week for waters to rise slowly.