Johnstown 1889 - The Flood That Killed 2,200 Americans

May 31st, 1889, 3:10 PM – The poorly maintained South Fork Dam, owned by wealthy Pittsburgh industrialists including Andrew Carnegie and Henry Clay Frick who created a private fishing resort, collapses all at once, releasing 20 million tons of water in a 60-foot wall traveling at 40 mph down a narrow valley toward the industrial city of Johnstown, Pennsylvania.