About DamLookup.com

DamLookup.com makes it easy to find and understand dam safety information for any location in the United States. Our data comes from the National Inventory of Dams (NID), maintained by the U.S. Army Corps of Engineers.

Data Source

The NID contains information on more than 92,000 dams across the United States. Each dam record includes hazard potential classification, condition assessment, physical characteristics, ownership information, and inspection history. The data is updated regularly by state and federal agencies.

Why Dam Safety Matters

Many Americans live downstream of dams without knowing it. Understanding which dams are near you — and their hazard classification and condition — is important for emergency preparedness. High hazard dams are those where failure would likely cause loss of life, making awareness critical for downstream communities.

Disclaimer

This site is for informational purposes only. Dam safety data comes from the NID and may not reflect the most current conditions. For official dam safety information, contact your state dam safety program.