Open Data Commons Attribution License

usace-national-inventory-of-dams

The mission of the U.S. Army Corps of Engineers is to deliver vital public and military engineering services; partnering in peace and war to strengthen our nation’s security, energize the economy and reduce risks from disasters.

usace

US Army Corps of Engineers

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.


USACE is responsible for maintaining the NID and works in close collaboration with federal dam regulating agencies, including the Federal Emergency Management Agency (FEMA) and federal and state dam regulating agencies, to obtain accurate and complete information about dams in the database.


The database contains information about a dam’s location, type, size, purpose, uses and benefits, date of last inspection, other structural and geographical information, and much more (there are more than 70 data fields for each dams). The NID is also used to assist federal, state, and local agencies develop dam safety policies.