Hagmaier South
Key Takeaway
Hagmaier South is classified as significant hazard in California. It was completed in 1944 and is 82 years old. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 23.6% in CA) |
| Dam Length | 0 ft |
| Dam Type | Earth |
| Max Storage | 18 acre-ft |
| Normal Storage | 13 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 150 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1944 (82 years old) |
| NID ID | CA10247 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DOI NPS
Federal Government
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High Hazard 90 ftFrequently Asked Questions
What is the hazard classification of Hagmaier South?
Hagmaier South is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Hagmaier South?
Hagmaier South is owned by DOI NPS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hagmaier South built?
Hagmaier South was completed in 1944, making it 82 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Hagmaier South?
Hagmaier South has a dam height of 25 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Hagmaier South last inspected?
Hagmaier South was last inspected on December 7, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.