No Name Wash
Key Takeaway
No Name Wash 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 | 22 ft (taller than 36.8% in AZ) |
| Dam Length | 918 ft |
| Dam Type | Earth |
| Max Storage | 646 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,296 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | AZ00163 |
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
ARIZONA STATE LAND DEPARTMENT;GRAHAM COUNTY
Local Government
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Low HazardFrequently Asked Questions
What is the hazard classification of No Name Wash?
No Name Wash 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 No Name Wash?
No Name Wash is owned by ARIZONA STATE LAND DEPARTMENT;GRAHAM COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was No Name Wash built?
No Name Wash 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 No Name Wash?
No Name Wash 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 No Name Wash?
No Name Wash has a dam height of 22 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 No Name Wash last inspected?
No Name Wash was last inspected on February 3, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.