Most of the dams in the United States were built more than 50 years ago. The Corps of Engineers of the Armed Forces estimates that they need repairs for a cost of US $ 24,000 million.
They review risks of failures in dams across the US
2019-11-05T02:37:47.653Z
Most of the dams in the United States were built more than 50 years ago. The body of engineers of the Armed Forces estimates that they need repairs for a cost of US $ 24,000 million ...