Mendocino Middle
Key Takeaway
Mendocino Middle is classified as high hazard in California. It was completed in 1908 and is 118 years old. Its primary use is other. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 39 ft (taller than 44.4% in CA) |
| Dam Length | 119 ft |
| Dam Type | Gravity |
| Max Storage | 27 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 4 sq mi |
| Year Completed | 1908 (118 years old) |
| NID ID | CA00001 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
County of Mendocino
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Mendocino Middle?
Mendocino Middle is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mendocino Middle?
Mendocino Middle is owned by County of Mendocino (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mendocino Middle built?
Mendocino Middle was completed in 1908, making it 118 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 Mendocino Middle?
Mendocino Middle serves the following purposes: Other, Irrigation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mendocino Middle?
Mendocino Middle has a dam height of 39 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 Mendocino Middle last inspected?
Mendocino Middle was last inspected on January 4, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.