Grant Dam
Key Takeaway
Grant Dam is classified as low hazard in Montana.
Physical Details
| Dam Length | 351 ft |
| Dam Type | Gravity |
| Max Storage | 56 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 6 sq mi |
| NID ID | MT02262 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DOI BLM
Federal Government
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Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Grant Dam?
Grant Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Grant Dam?
Grant Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Grant Dam last inspected?
Grant Dam was last inspected on September 5, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.