Armstrong Pond Dam
Key Takeaway
Armstrong Pond Dam is classified as low hazard in Illinois. It was completed in 1974 and is 52 years old. Its primary use is recreation.
Physical Details
| Dam Height | 26 ft (taller than 47.1% in IL) |
| Dam Length | 275 ft |
| Dam Type | Earth |
| Max Storage | 96 acre-ft |
| Normal Storage | 62 acre-ft |
| Year Completed | 1974 (52 years old) |
| NID ID | IL01060 |
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
BENJAMIN ARMSTRONG
Private
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Low Hazard 28 ftVandalia Municipal Reservoir Dam
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High Hazard 50 ftFrequently Asked Questions
What is the hazard classification of Armstrong Pond Dam?
Armstrong Pond 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 Armstrong Pond Dam?
Armstrong Pond Dam is owned by BENJAMIN ARMSTRONG (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Armstrong Pond Dam built?
Armstrong Pond Dam was completed in 1974, making it 52 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 Armstrong Pond Dam?
Armstrong Pond Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Armstrong Pond Dam?
Armstrong Pond Dam has a dam height of 26 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.
When was Armstrong Pond Dam last inspected?
Armstrong Pond Dam was last inspected on May 14, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.