May 31, 1889: The Johnstown Flood
May 31, 1889: The Johnstown Flood kills 2,208 people, one of the worst man-made disasters in history. Johnstown, Pennsylvania is 67 miles east of Pittsburgh. It sits at the confluence of the Little Conemaugh River and the Stonycreek River, as they form the Conemaugh River. That river eventually flows into the Kiskiminetas River, which flows into the Allegheny River, which combines with the Monongahela River at Pittsburgh to form the Ohio River. Like so many other Pennsylvania towns in the 19th Century, Johnstown became a producer of iron, coal and steel. But it flooded pretty much every year. On May 30, 1889, they had a Memorial Day parade, and got it done before the rain came. But the rain kept coming, and coming. The next day, at 2:55 PM, the South Fork Dam, which had formed Lake Conemaugh, burst. The City of Johnstown, 14 miles downriver, never had a chance: It was hit with over 14 million cubic meters of water, about the average annual flow of the Mississippi River, coming at 40 m...