Jefferson County Lake #1 Dam
Key Takeaway
Jefferson County Lake #1 Dam is classified as significant hazard in Missouri. It was completed in 1991 and is 35 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 24 ft (taller than 20.3% in MO) |
| Max Storage | 26 acre-ft |
| Normal Storage | 16 acre-ft |
| Surface Area | 2 acres |
| Year Completed | 1991 (35 years old) |
| NID ID | MO31985 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Local Government
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High Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Jefferson County Lake #1 Dam?
Jefferson County Lake #1 Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Jefferson County Lake #1 Dam?
Jefferson County Lake #1 Dam is owned by information not available (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jefferson County Lake #1 Dam built?
Jefferson County Lake #1 Dam was completed in 1991, making it 35 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 Jefferson County Lake #1 Dam?
Jefferson County Lake #1 Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Jefferson County Lake #1 Dam?
Jefferson County Lake #1 Dam has a dam height of 24 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.