Johnstown Flood Devastates Pennsylvania Valley
In the late 19th century, the South Fork Dam above Johnstown, Pennsylvania, had been sold to a private fishing club and received inadequate maintenance despite its history of leaks. Heavy rains throughout May 1889 swelled rivers and strained the structure. On May 31 the dam gave way, releasing a wall of water up to 60 feet high that raced 14 miles downstream. The torrent smashed through the industrial town of Johnstown, sweeping away homes, factories, and bridges in minutes. More than 2,200 people perished, making it one of the deadliest floods in U.S. history at the time. Rescue and recovery efforts stretched for weeks amid widespread destruction of property valued in the tens of millions of dollars.
