Donnelly Pond Dam
Key Takeaway
Donnelly Pond Dam is classified as low hazard in Illinois. It was completed in 1965 and is 61 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 28 ft (taller than 54.6% in IL) |
| Dam Length | 180 ft |
| Dam Type | Earth |
| Max Storage | 34 acre-ft |
| Normal Storage | 21 acre-ft |
| Year Completed | 1965 (61 years old) |
| NID ID | IL00556 |
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
LLOYD R. TERRILL
Private
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High Hazard 78 ftDiericky Pond Dam
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Low Hazard 27 ftWhispering Pines Dam
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Significant Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Donnelly Pond Dam?
Donnelly 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 Donnelly Pond Dam?
Donnelly Pond Dam is owned by LLOYD R. TERRILL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Donnelly Pond Dam built?
Donnelly Pond Dam was completed in 1965, making it 61 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 Donnelly Pond Dam?
Donnelly Pond Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Donnelly Pond Dam?
Donnelly Pond Dam has a dam height of 28 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 Donnelly Pond Dam last inspected?
Donnelly Pond Dam was last inspected on September 3, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.