Letterman Lake Dam
Key Takeaway
Letterman Lake Dam is classified as low hazard in Missouri. It was completed in 1976 and is 50 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 19 ft (taller than 6.3% in MO) |
| Dam Length | 1,150 ft |
| Dam Type | Earth |
| Max Storage | 163 acre-ft |
| Normal Storage | 95 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 244 sq mi |
| Max Discharge | 221 cfs |
| Year Completed | 1976 (50 years old) |
| NID ID | MO11368 |
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
D L LETTERMAN
Private
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High Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Letterman Lake Dam?
Letterman 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 Letterman Lake Dam?
Letterman Lake Dam is owned by D L LETTERMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Letterman Lake Dam built?
Letterman Lake Dam was completed in 1976, making it 50 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 Letterman Lake Dam?
Letterman Lake Dam serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Letterman Lake Dam?
Letterman Lake Dam has a dam height of 19 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.