Illinois dam fails after heavy rains and tornadoes sweep across state; hundreds told to evacuate NBC ChicagoIllinois Dam Failure Floods Homes The Weather ChannelRisk of Illinois dam failure under control; some flooding forces evacuations: officials WLS-TVResidents ordered to evacuate after Nashville, Ill. dam failure KTVI Fox 2 St. LouisPHOTOS: Vehicles Driving Through Flooded I-64 in Washington County WSIL TV