Manzanita Lake Dam
Key Takeaway
Manzanita Lake Dam is classified as significant hazard in California. It was completed in 1911 and is 115 years old. Its primary use is fish and wildlife pond. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 13 ft (taller than 5.6% in CA) |
| Dam Length | 0 ft |
| Dam Type | Earth |
| Max Storage | 520 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1911 (115 years old) |
| NID ID | CA10266 |
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
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Manzanita Lake Dam?
Manzanita Lake Dam 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 Manzanita Lake Dam?
Manzanita Lake Dam is owned by DOI NPS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Manzanita Lake Dam built?
Manzanita Lake Dam was completed in 1911, making it 115 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Manzanita Lake Dam?
Manzanita Lake Dam serves the following purposes: Fish And Wildlife Pond, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Manzanita Lake Dam?
Manzanita Lake Dam has a dam height of 13 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 Manzanita Lake Dam last inspected?
Manzanita Lake Dam was last inspected on July 6, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.