Rainbow Lake Dam
Key Takeaway
Rainbow Lake Dam is classified as low hazard in Georgia. It was completed in 1984 and is 42 years old. Its primary use is recreation.
Physical Details
| Dam Height | 21 ft (taller than 43.5% in GA) |
| Dam Length | 159 ft |
| Dam Type | Earth |
| Max Storage | 105 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 939 sq mi |
| Year Completed | 1984 (42 years old) |
| Year Modified | 2018 |
| NID ID | GA05733 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
R-Ranch in the Mountains
Private
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Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Rainbow Lake Dam?
Rainbow Lake Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Rainbow Lake Dam?
Rainbow Lake Dam is owned by R-Ranch in the Mountains (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rainbow Lake Dam built?
Rainbow Lake Dam was completed in 1984, making it 42 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 Lake Dam?
Rainbow Lake 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 Lake Dam?
Rainbow Lake Dam has a dam height of 21 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 Lake Dam last inspected?
Rainbow Lake Dam was last inspected on March 9, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.