Night of the Johnstown Flood — HIS2405.01
On the afternoon of May 31, 1889 the people of Johnstown, Pennsylvania, heard "a roar like thunder," as the South Fork Dam broke high above them, unleashing 20 million tons of water in walls up to 60 feet high and speeds of 40 miles per hour. Initial casualties were 2,200 people, making it one of the worst national disasters in 19th-century America. Though the