U.S. Army Corps of Engineers Digital Visual Library Parts of the Corps' waterway network, including Lock and Dam No. 25 on the Mississippi, are more than 50 years old. Related Links: National Research Council Report ENR Blog: Signs of Life for a New WRDA Bill A new National Research Council study says the U.S. Army Corps of Engineers is losing ground in maintaining and upgrading the agency's huge, aging water-resources infrastructure.The Corps-sponsored report, released on Oct. 4, comes as there are stirrings in the Senate about a new, multiyear water-resources bill that would authorize Corps river locks and dams, harbor
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