R-4 Detention Dam
Key Takeaway
R-4 Detention Dam is classified as high hazard in Nevada. It was completed in 2004 and is 22 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 | 38 ft (taller than 71.4% in NV) |
| Dam Length | 1,151 ft |
| Dam Type | Earth |
| Max Storage | 524 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 36 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 31,271 cfs |
| Year Completed | 2004 (22 years old) |
| NID ID | NV10621 |
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
CLARK COUNTY PUBLIC WORKS
Local Government
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High Hazard 45 ftFrequently Asked Questions
What is the hazard classification of R-4 Detention Dam?
R-4 Detention Dam 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 R-4 Detention Dam?
R-4 Detention Dam is owned by CLARK COUNTY PUBLIC WORKS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was R-4 Detention Dam built?
R-4 Detention Dam was completed in 2004, making it 22 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 R-4 Detention Dam?
R-4 Detention Dam 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 R-4 Detention Dam?
R-4 Detention Dam has a dam height of 38 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 R-4 Detention Dam last inspected?
R-4 Detention Dam was last inspected on February 25, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.