Eureka
Key Takeaway
Eureka is classified as significant hazard in California. It was completed in 1866 and is 160 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 29 ft (taller than 29% in CA) |
| Dam Length | 410 ft |
| Dam Type | Earth |
| Max Storage | 220 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1866 (160 years old) |
| NID ID | CA00031 |
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
Frequently Asked Questions
What is the hazard classification of Eureka?
Eureka 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 Eureka?
Eureka 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 Eureka built?
Eureka was completed in 1866, making it 160 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 Eureka?
Eureka serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Eureka?
Eureka has a dam height of 29 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 Eureka last inspected?
Eureka was last inspected on June 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.