Groff Upper Dam
Key Takeaway
Groff Upper Dam is classified as low hazard in Missouri. It was completed in 1959 and is 67 years old. Its primary use is recreation.
Physical Details
| Dam Height | 27 ft (taller than 49% in MO) |
| Dam Type | Earth |
| Max Storage | 58 acre-ft |
| Normal Storage | 31 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 77 sq mi |
| Year Completed | 1959 (67 years old) |
| NID ID | MO30140 |
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
ROBERT GROFF
Private
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Significant Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Groff Upper Dam?
Groff Upper 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 Groff Upper Dam?
Groff Upper Dam is owned by ROBERT GROFF (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Groff Upper Dam built?
Groff Upper Dam was completed in 1959, making it 67 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 Groff Upper Dam?
Groff Upper 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 Groff Upper Dam?
Groff Upper Dam has a dam height of 27 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.