Rainbow Lakes # 1 Dam
Key Takeaway
Rainbow Lakes # 1 Dam is classified as high hazard in Mississippi. It was completed in 1977 and is 49 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 | 33 ft (taller than 93.6% in MS) |
| Dam Length | 1,160 ft |
| Dam Type | Earth |
| Max Storage | 878 acre-ft |
| Normal Storage | 698 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 366 cfs |
| Year Completed | 1977 (49 years old) |
| Year Modified | 2010 |
| NID ID | MS03699 |
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
RAINBOW LAKES PROPERTY ASSOCIATION
Private
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What is the hazard classification of Rainbow Lakes # 1 Dam?
Rainbow Lakes # 1 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 Rainbow Lakes # 1 Dam?
Rainbow Lakes # 1 Dam is owned by RAINBOW LAKES PROPERTY ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rainbow Lakes # 1 Dam built?
Rainbow Lakes # 1 Dam 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 Rainbow Lakes # 1 Dam?
Rainbow Lakes # 1 Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Rainbow Lakes # 1 Dam?
Rainbow Lakes # 1 Dam 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 Rainbow Lakes # 1 Dam last inspected?
Rainbow Lakes # 1 Dam was last inspected on April 11, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.