Nehai Tonkayea Lake Dam
Key Takeaway
Nehai Tonkayea Lake Dam is classified as low hazard in Missouri. It was completed in 1970 and is 56 years old. Its primary use is recreation.
Physical Details
| Dam Height | 65 ft (taller than 97.9% in MO) |
| Dam Length | 1,700 ft |
| Dam Type | Earth |
| Max Storage | 9.1K acre-ft |
| Normal Storage | 5.4K acre-ft |
| Surface Area | 250 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 167 cfs |
| Year Completed | 1970 (56 years old) |
| Year Modified | 1995 |
| NID ID | MO10627 |
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
NEHAI TONKAYEA POA
Private
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Nehai Tonkayea Lake Dam?
Nehai Tonkayea Lake 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 Nehai Tonkayea Lake Dam?
Nehai Tonkayea Lake Dam is owned by NEHAI TONKAYEA POA (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Nehai Tonkayea Lake Dam built?
Nehai Tonkayea Lake Dam was completed in 1970, making it 56 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 Nehai Tonkayea Lake Dam?
Nehai Tonkayea 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 Nehai Tonkayea Lake Dam?
Nehai Tonkayea Lake Dam has a dam height of 65 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 Nehai Tonkayea Lake Dam last inspected?
Nehai Tonkayea Lake Dam was last inspected on February 7, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.