USACE National Inventory of Dams

All charts, queries and maps reflect the most current 2018 National Inventory of Dams (NID) database. State and federal dam regulators provided their data from May to November 2018 for inclusion in the 2018 database.

Data and Resources


Field Value
Contact Name NID
Contact Email [email protected]
Last Updated 31 October 2023
Published 16 April 2020