Dayton Ohio Was Destroyed by a Flood in 1913 and Built an Engineering System That Has Quietly Prevented Every Flood Since Dayton Flood 1913 Ohio, Great Dayton Flood history, Miami Conservancy District Ohio, Dayton Ohio flood control, Miami River Ohio flood history, Ohio flood engineering, Dayton Ohio history 1913 The 1913 Dayton flood killed over 360 people and destroyed entire city neighborhoods in days. The civic response was the construction of a dry dam flood control system across the Miami