One Eleven Detention Dam
Key Takeaway
One Eleven Detention Dam is classified as low hazard in Arizona. It was completed in 1968 and is 58 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Length | 850 ft |
| Dam Type | Gravity |
| Max Storage | 658 acre-ft |
| Normal Storage | 449 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 1,488 cfs |
| Year Completed | 1968 (58 years old) |
| NID ID | AZ20019 |
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
DOI BLM
Federal Government
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Low HazardFrequently Asked Questions
What is the hazard classification of One Eleven Detention Dam?
One Eleven Detention Dam 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 One Eleven Detention Dam?
One Eleven Detention Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was One Eleven Detention Dam built?
One Eleven Detention Dam was completed in 1968, making it 58 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 One Eleven Detention Dam?
One Eleven Detention Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was One Eleven Detention Dam last inspected?
One Eleven Detention Dam was last inspected on July 7, 2009. Inspection dates indicate when a formal review occurred, not the results of that inspection.