National Inventory of Dams

The National Inventory of Dams (NID) documents all known dams in the U.S. and its territories that meet certain criteria. It is designed to provide a variety of users the ability to search for specific data about dams in the U.S. and serves as a resource to support awareness of dams and actions to prepare for a dam-related emergency.

Contact Email: NID@usace.army.mil

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