The high Mississippi waters are disrupting towns farther down stream. At Winona, the Mississippi crested for a second time on Sunday at 19-point-five feet -- slightly lower than last week's high. Flood waters are seeping under the city's roadway and creating sinkholes. Keith Nelson is Winona's Assistant City Manager for Public Works. He says the sinkholes are a result of the town's geography: Keith Nelson is Winona's Assistant Manager of Public Works.