One of the largest dam removals in world historyFour dams along the Klamath River, which runs from Oregon into northwestern California, are scheduled to be removed in 2023 and 2024 – Copco No.1, Copco No.2, Iron Gate, and JC Boyle.
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Francis Dam disaster, catastrophic dam failure in California on March 12, 1928, that was one of the worst civil engineering failures in American history. The ensuing flood killed hundreds and swept away thousands of acres of fertile land.
The worst dam failure in the United States was the Johnstown flood of 1889. The failure of the South Fork Dam, which affected Johnstown, is currently regarded as the worst dam failure in U.S. history.
Banqiao Dam Failure (China, 1975)The Banqiao Dam failure is considered the deadliest dam disaster in history. Heavy rainfall caused the dam to collapse, leading to a catastrophic flood. The estimated death toll ranges from 26,000 to 171,000, with millions of people affected.
The failure of the South Fork Dam, which affected Johnstown, is currently regarded as the worst dam failure in U.S. history. About eight miles to the east of Johnstown, Pennsylvania, was where the South Fork Dam, a rock and earthen dam, was built.