Lake Innsbrook Dam
Key Takeaway
Lake Innsbrook Dam is classified as high hazard in Missouri. It was completed in 1975 and is 51 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 | 46 ft (taller than 93.2% in MO) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 974 acre-ft |
| Normal Storage | 532 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 1,490 cfs |
| Year Completed | 1975 (51 years old) |
| Year Modified | 1995 |
| NID ID | MO11243 |
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
INNSBROOK OWNERS ASSOCIATION
Private
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What is the hazard classification of Lake Innsbrook Dam?
Lake Innsbrook 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 Lake Innsbrook Dam?
Lake Innsbrook Dam is owned by INNSBROOK OWNERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Innsbrook Dam built?
Lake Innsbrook Dam was completed in 1975, making it 51 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 Innsbrook Dam?
Lake Innsbrook 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 Lake Innsbrook Dam?
Lake Innsbrook Dam has a dam height of 46 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 Innsbrook Dam last inspected?
Lake Innsbrook Dam was last inspected on November 18, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.