Lake Hollenbeck Dam
Key Takeaway
Lake Hollenbeck Dam is classified as high hazard in Missouri. It was completed in 1964 and is 62 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 | 43 ft (taller than 91.5% in MO) |
| Dam Length | 760 ft |
| Dam Type | Rockfill |
| Max Storage | 580 acre-ft |
| Normal Storage | 580 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 544 cfs |
| Year Completed | 1964 (62 years old) |
| Year Modified | 1993 |
| NID ID | MO40050 |
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
CAPE GIR ELKS LODGE #639
Private
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What is the hazard classification of Lake Hollenbeck Dam?
Lake Hollenbeck 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 Hollenbeck Dam?
Lake Hollenbeck Dam is owned by CAPE GIR ELKS LODGE #639 (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Hollenbeck Dam built?
Lake Hollenbeck Dam was completed in 1964, making it 62 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 Hollenbeck Dam?
Lake Hollenbeck 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 Hollenbeck Dam?
Lake Hollenbeck Dam has a dam height of 43 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 Hollenbeck Dam last inspected?
Lake Hollenbeck Dam was last inspected on June 28, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.