Black Reservoir
Key Takeaway
Black Reservoir is classified as low hazard in California. It was completed in 1905 and is 121 years old. Its primary use is water supply.
Physical Details
| Dam Height | 18 ft (taller than 12.6% in CA) |
| Dam Length | 1,330 ft |
| Dam Type | Earth |
| Max Storage | 185 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1905 (121 years old) |
| NID ID | CA00646 |
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
Bently Family, LP
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Black Reservoir?
Black Reservoir 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 Black Reservoir?
Black Reservoir is owned by Bently Family, LP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Black Reservoir built?
Black Reservoir was completed in 1905, making it 121 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 Black Reservoir?
Black Reservoir serves the following purposes: Water Supply, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Black Reservoir?
Black Reservoir has a dam height of 18 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 Black Reservoir last inspected?
Black Reservoir was last inspected on June 23, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.