Stockton Wash Retarding
Key Takeaway
Stockton Wash Retarding is classified as high hazard in Arizona. It was completed in 1964 and is 62 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 | 33 ft (taller than 59.3% in AZ) |
| Dam Length | 4,013 ft |
| Dam Type | Earth |
| Max Storage | 12.4K acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 558 acres |
| Drainage Area | 153 sq mi |
| Max Discharge | 17,250 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | AZ00067 |
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
GRAHAM COUNTY
Local Government
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High Hazard 31 ftFrequently Asked Questions
What is the hazard classification of Stockton Wash Retarding?
Stockton Wash Retarding 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 Stockton Wash Retarding?
Stockton Wash Retarding is owned by GRAHAM COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stockton Wash Retarding built?
Stockton Wash Retarding was completed in 1964, making it 62 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 Stockton Wash Retarding?
Stockton Wash Retarding 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.
How tall is Stockton Wash Retarding?
Stockton Wash Retarding has a dam height of 33 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 Stockton Wash Retarding last inspected?
Stockton Wash Retarding was last inspected on February 3, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.