Roper Lake
Key Takeaway
Roper Lake is classified as high hazard in Arizona. It was completed in 1961 and is 65 years old. Its primary use is recreation. 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 | 17 ft (taller than 22.8% in AZ) |
| Dam Length | 2,964 ft |
| Dam Type | Earth |
| Normal Storage | 313 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | AZ00091 |
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 GAME & FISH DEPARTMENT
State Government
Frequently Asked Questions
What is the hazard classification of Roper Lake?
Roper Lake 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 Roper Lake?
Roper Lake is owned by ARIZONA GAME & FISH DEPARTMENT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Roper Lake built?
Roper Lake was completed in 1961, making it 65 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 Roper Lake?
Roper Lake serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Roper Lake?
Roper Lake has a dam height of 17 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 Roper Lake last inspected?
Roper Lake was last inspected on January 14, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.