Lake Lasalle Dam
Key Takeaway
Lake Lasalle Dam is classified as high hazard in Missouri. It was completed in 1955 and is 71 years old. Its primary use is flood risk reduction. 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 | 96 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 310 sq mi |
| Year Completed | 1955 (71 years old) |
| NID ID | MO31136 |
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
LASALLE INSTITUTE
Private
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Lake Lasalle Dam?
Lake Lasalle 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 Lake Lasalle Dam?
Lake Lasalle Dam is owned by LASALLE INSTITUTE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Lasalle Dam built?
Lake Lasalle Dam was completed in 1955, making it 71 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 Lake Lasalle Dam?
Lake Lasalle Dam serves the following purposes: Flood Risk Reduction, Fire Protection, Stock, Or Small Fish Pond, Recreation, Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Lasalle Dam?
Lake Lasalle 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.