Connect USACE National Inventory of Dams

About USACE National Inventory of Dams

Federal dam inventory context for a property: the listed dams near a site, the hazard potential class assigned to each, the condition assessment and last inspection date, storage and height, owner type, and which state dam safety office holds the file. Hazard potential describes what a failure would cost downstream, not how likely a failure is and not whether a given point sits in the failure path. The inventory publishes no inundation mapping, so nothing here places a property inside or outside a dam failure area, and flood zone remains a separate question for the flood connector. Results are sorted by straight-line distance, so this cannot tell upstream from downstream: a dam across a ridge and a dam on the same creek read alike. Condition assessment is unreported on roughly one dam in five and emergency action plan status on most, and a blank is an unreported field rather than a clean record. Treat the whole result as a prompt to request inspection reports and emergency planning from the named regulator. Coverage is the 50 states plus Puerto Rico and Guam.

⚠ Proximity to a dam is not an inundation risk finding. Hazard potential classification describes the consequence of a failure for people and property downstream, not the probability of failure and not whether a given point is in the failure path.

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