Lenny Lake Dam
Key Takeaway
Lenny Lake Dam is classified as high hazard in Missouri. It was completed in 1960 and is 66 years old. Its primary use is irrigation. 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 | 20 ft (taller than 7.1% in MO) |
| Dam Type | Earth |
| Max Storage | 220 acre-ft |
| Normal Storage | 220 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 481 sq mi |
| Year Completed | 1960 (66 years old) |
| NID ID | MO20183 |
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
ARYGLE LENNY
Private
Nearby Dams
Mccannon Lake Dam
Johnson, MO
High Hazard 25 ftSouth Fork Blackwater River Dam E-29
Johnson, MO
Low Hazard 28 ftSo Fork Blackwater Wtrshd Site E-29
Johnson, MO
Low Hazard 27 ftKesterson Dam
Johnson, MO
High Hazard 25 ftRock Island Lake Dam
Johnson, MO
High Hazard 25 ftEldridge Lake Dam
Johnson, MO
Low Hazard 25 ftSouth Fork Blackwater River Dam E-24
Johnson, MO
Low Hazard 19 ftWilson Lake Dam
Johnson, MO
Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Lenny Lake Dam?
Lenny 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 Lenny Lake Dam?
Lenny Lake Dam is owned by ARYGLE LENNY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lenny Lake Dam built?
Lenny Lake Dam was completed in 1960, making it 66 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 Lenny Lake Dam?
Lenny Lake Dam serves the following purposes: Irrigation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lenny Lake Dam?
Lenny Lake Dam has a dam height of 20 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.