Sempervirens
Key Takeaway
Sempervirens is classified as significant hazard in California. It was completed in 1951 and is 75 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 42 ft (taller than 50.1% in CA) |
| Dam Length | 260 ft |
| Dam Type | Earth |
| Max Storage | 78 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1951 (75 years old) |
| NID ID | CA00013 |
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
California Department of Parks and Recreation
State Government
Nearby Dams
Oak Site
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Low Hazard 43 ftMill Creek
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High Hazard 76 ftCoastways
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High Hazard 46 ftRickey
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Low Hazard 64 ftGreen Oaks #1
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Low Hazard 39 ftPomponio Ranch
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High Hazard 64 ftBean Hollow #3
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Low Hazard 40 ftLake Ranch
Santa Clara, CA
High Hazard 38 ftFrequently Asked Questions
What is the hazard classification of Sempervirens?
Sempervirens 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 Sempervirens?
Sempervirens is owned by California Department of Parks and Recreation (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sempervirens built?
Sempervirens was completed in 1951, making it 75 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 Sempervirens?
Sempervirens serves the following purposes: Other, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sempervirens?
Sempervirens has a dam height of 42 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 Sempervirens last inspected?
Sempervirens was last inspected on July 22, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.