Complete information about visiting the Johnstown Flood National Memorial is now on National Park Planner!
On May 31, 1889, two days after record heavy rain began, the dam that held back the waters of Lake Conemaugh, an artificial mountain lake created for the enjoyment of Pittsburgh’s elite, broke, sending a wall of water fourteen miles down the valley towards the industrial city of Johnstown, Pennsylvania. Over 2200 people were killed in the ensuing disaster. To this day the Johnstown Flood remains the deadliest flood in American history and the third deadliest flood in the world due to a dam collapse.
HISTORY OF THE JOHNSTOWN FLOOD
DIRECTIONS AND CONTACT INFORMATION
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Last updated on March 1, 2022
