Graessle-Rockers Lake Dam
Key Takeaway
Graessle-Rockers Lake Dam is classified as high hazard in Missouri. It was completed in 1967 and is 59 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 | 31 ft (taller than 73.7% in MO) |
| Dam Type | Earth |
| Max Storage | 249 acre-ft |
| Normal Storage | 135 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 290 sq mi |
| Year Completed | 1967 (59 years old) |
| NID ID | MO31051 |
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
PAUL GRAESSLE
Private
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High Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Graessle-Rockers Lake Dam?
Graessle-Rockers Lake 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 Graessle-Rockers Lake Dam?
Graessle-Rockers Lake Dam is owned by PAUL GRAESSLE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Graessle-Rockers Lake Dam built?
Graessle-Rockers Lake Dam was completed in 1967, making it 59 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 Graessle-Rockers Lake Dam?
Graessle-Rockers 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 Graessle-Rockers Lake Dam?
Graessle-Rockers Lake Dam has a dam height of 31 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.