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Below Aging U.S. Dams, a Potential Toxic Calamity

undark.org
 17 days ago

Cover picture for the articleA multimedia version of this story, with rich maps and data, is available here. On May 19, 2020, a group of engineers and emergency officials gathered at a fire station in Edenville, Michigan to decide what to do about the Edenville Dam, a 97-year-old hydroelectric structure about a mile upstream on the Tittabawassee River. Over the preceding two days, heavy rains had swelled the river, filling the reservoir to its brim and overwhelming the dam’s spillway. The group was just about to discuss next steps when the radios went off, recalled Roger Dufresne, Edenville Township’s longtime fire chief. “That’s when the dam broke.”

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