Trinity Lake Dam
Key Takeaway
Trinity Lake Dam is classified as high hazard in Missouri. It was completed in 1986 and is 40 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 | 44 ft (taller than 92% in MO) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 244 acre-ft |
| Normal Storage | 137 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 150 cfs |
| Year Completed | 1986 (40 years old) |
| NID ID | MO31870 |
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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High Hazard 39 ftFrequently Asked Questions
What is the hazard classification of Trinity Lake Dam?
Trinity 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 Trinity Lake Dam?
Trinity Lake Dam is owned by INNSBROOK OWNERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Trinity Lake Dam built?
Trinity Lake Dam was completed in 1986, making it 40 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 Trinity Lake Dam?
Trinity 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 Trinity Lake Dam?
Trinity Lake Dam has a dam height of 44 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 Trinity Lake Dam last inspected?
Trinity Lake Dam was last inspected on November 18, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.