Mississippi River Lock and Dam 21
Adams County, Missouri (near HANNIBAL)
River/Stream: MISSISSIPPI RIVER
Significant Hazard
Failure could cause economic loss or disruption
Key Facts
Condition Assessment
Not AvailableLast inspected: 2023-07-27
Hazard Classification: Significant — This describes the potential consequences of dam failure, not the likelihood of failure.
Condition Assessment: Not Available — This describes the current physical condition of the dam based on the most recent inspection.
Location
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Quick Stats
- NID ID
- MO10304
- State
- Missouri (MO)
- Coordinates
- 39.90448, -91.42988
- Age
- 88 years
Nearby Dams
External Resources
Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.