Alley Lake Dam
Key Takeaway
Alley Lake Dam is classified as low hazard in Missouri. It was completed in 1972 and is 54 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 25 ft (taller than 23.5% in MO) |
| Dam Type | Earth |
| Max Storage | 682 acre-ft |
| Normal Storage | 340 acre-ft |
| Surface Area | 51 acres |
| Drainage Area | 640 sq mi |
| Year Completed | 1972 (54 years old) |
| NID ID | MO20057 |
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
HAROLD ALLEY
Private
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Significant Hazard 24 ftElliot Lake Dam
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Low Hazard 38 ftFrequently Asked Questions
What is the hazard classification of Alley Lake Dam?
Alley 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 Alley Lake Dam?
Alley Lake Dam is owned by HAROLD ALLEY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Alley Lake Dam built?
Alley Lake Dam was completed in 1972, making it 54 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 Alley Lake Dam?
Alley Lake Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Alley Lake Dam?
Alley Lake Dam has a dam height of 25 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.