Round Rock
Key Takeaway
Round Rock is classified as high hazard in Arizona. It was completed in 1937 and is 89 years old. Its primary use is irrigation. 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 Length | 1,675 ft |
| Dam Type | Earth |
| Normal Storage | 833 acre-ft |
| Year Completed | 1937 (89 years old) |
| NID ID | AZ10305 |
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
BIA
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Round Rock?
Round Rock 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 Round Rock?
Round Rock is owned by BIA (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Round Rock built?
Round Rock was completed in 1937, making it 89 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 Round Rock?
Round Rock serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Round Rock last inspected?
Round Rock was last inspected on April 11, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.