A sign reads "Flood danger, Prepare to evacuate" as residents prepare for the flood
Des Moines, Iowa, July 9, 1993 -- Homes, businesses and public utilites were all damaged or destroyed during the flood. A total of 534 counties in nine states were declared for federal disaster aid. As a result of the floods, 168,340 people registered for federal assistance. Photo by Andrea Booher/Released/FEMA