Manhattan Creek
Key Takeaway
Manhattan Creek is classified as high hazard in California. It was completed in 1952 and is 74 years old. Its primary use is water supply. 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 | 32 ft (taller than 34.2% in CA) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 110 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1952 (74 years old) |
| NID ID | CA01046 |
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
Private Entity
Private
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Significant Hazard 55 ftFrequently Asked Questions
What is the hazard classification of Manhattan Creek?
Manhattan Creek 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 Manhattan Creek?
Manhattan Creek is owned by Private Entity (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Manhattan Creek built?
Manhattan Creek was completed in 1952, making it 74 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 Manhattan Creek?
Manhattan Creek serves the following purposes: Water Supply, Fire Protection, Stock, Or Small Fish Pond, Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Manhattan Creek?
Manhattan Creek has a dam height of 32 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 Manhattan Creek last inspected?
Manhattan Creek was last inspected on April 6, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.