Keywords: usgs floods iowa midwest flooding midwestflooding outdoor Sandbags piled up at the end of a major roadway in Waterloo, IA (photography: Don Becker, USGS) usgs.gov/june08floods Sandbags piled up at the end of a major roadway in Waterloo, IA (photography: Don Becker, USGS) usgs.gov/june08floods |