A more than two-year investigation by the Associated Press has found scores of dams around the United States in various states of disrepair, located in areas where a breach might place thousands in danger. These aging dams loom over homes, businesses, highways, or entire communities which could face life-threatening floods if the dams don’t hold. The Association of State Dam Safety Officials estimates it would take more than $70 billion to repair and modernize the nation’s more than 90,000 dams. But unlike much other infrastructure, most U.S. dams are privately owned. That makes it difficult for regulators to require improvements from operators who are unable or unwilling to pay the steep costs.
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