Janssen Lake Dam
Key Takeaway
Janssen Lake Dam is classified as low hazard in Missouri. It was completed in 1974 and is 52 years old. Its primary use is other.
Physical Details
| Dam Height | 30 ft (taller than 63.5% in MO) |
| Dam Type | Earth |
| Max Storage | 96 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 43 sq mi |
| Year Completed | 1974 (52 years old) |
| NID ID | MO11390 |
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
RICHARD JANSSEN
Private
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Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Janssen Lake Dam?
Janssen 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 Janssen Lake Dam?
Janssen Lake Dam is owned by RICHARD JANSSEN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Janssen Lake Dam built?
Janssen Lake Dam was completed in 1974, making it 52 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 Janssen Lake Dam?
Janssen Lake Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Janssen Lake Dam?
Janssen Lake Dam has a dam height of 30 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.