Reach 11 Detention Dike 1
Key Takeaway
Reach 11 Detention Dike 1 is classified as high hazard in Arizona. It was completed in 1977 and is 49 years old. Its primary use is flood risk reduction. 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 | 35 ft (taller than 62.9% in AZ) |
| Dam Length | 18,739 ft |
| Dam Type | Earth |
| Max Storage | 19.5K acre-ft |
| Normal Storage | 19.5K acre-ft |
| Drainage Area | 34 sq mi |
| Year Completed | 1977 (49 years old) |
| NID ID | AZ82914 |
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
RECLAMATION
Federal Government
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What is the hazard classification of Reach 11 Detention Dike 1?
Reach 11 Detention Dike 1 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 Reach 11 Detention Dike 1?
Reach 11 Detention Dike 1 is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Reach 11 Detention Dike 1 built?
Reach 11 Detention Dike 1 was completed in 1977, making it 49 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 Reach 11 Detention Dike 1?
Reach 11 Detention Dike 1 serves the following purposes: Flood Risk Reduction, Irrigation, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Reach 11 Detention Dike 1?
Reach 11 Detention Dike 1 has a dam height of 35 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 Reach 11 Detention Dike 1 last inspected?
Reach 11 Detention Dike 1 was last inspected on August 13, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.