Allison Derby
Key Takeaway
Allison Derby is classified as low hazard in Alabama. It was completed in 1961 and is 65 years old. Its primary use is recreation.
Physical Details
| Dam Length | 600 ft |
| Dam Type | Earth |
| Max Storage | 78 acre-ft |
| Normal Storage | 78 acre-ft |
| Year Completed | 1961 (65 years old) |
| NID ID | AL00213 |
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
E A DERBY
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Allison Derby?
Allison Derby 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 Allison Derby?
Allison Derby is owned by E A DERBY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Allison Derby built?
Allison Derby was completed in 1961, making it 65 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 Allison Derby?
Allison Derby serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.