Lake Seven Falls No 3
Key Takeaway
Lake Seven Falls No 3 is classified as high hazard in Missouri. It was completed in 1971 and is 55 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 | 70 ft (taller than 98.5% in MO) |
| Dam Length | 490 ft |
| Dam Type | Earth |
| Max Storage | 624 acre-ft |
| Normal Storage | 624 acre-ft |
| Surface Area | 43 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 8,000 cfs |
| Year Completed | 1971 (55 years old) |
| NID ID | MO30094 |
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
LK SEVEN FALLS ASSOCIATION
Private
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High Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Lake Seven Falls No 3?
Lake Seven Falls No 3 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 Lake Seven Falls No 3?
Lake Seven Falls No 3 is owned by LK SEVEN FALLS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Seven Falls No 3 built?
Lake Seven Falls No 3 was completed in 1971, making it 55 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 Lake Seven Falls No 3?
Lake Seven Falls No 3 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 Lake Seven Falls No 3?
Lake Seven Falls No 3 has a dam height of 70 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 Lake Seven Falls No 3 last inspected?
Lake Seven Falls No 3 was last inspected on June 29, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.