Coffman Dam
Key Takeaway
Coffman Dam is classified as low hazard in Iowa. It was completed in 1965 and is 61 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 26 ft (taller than 24.7% in IA) |
| Dam Length | 523 ft |
| Dam Type | Earth |
| Max Storage | 83 acre-ft |
| Normal Storage | 57 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1965 (61 years old) |
| NID ID | IA00674 |
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
Chester Coffman
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Coffman Dam?
Coffman 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 Coffman Dam?
Coffman Dam is owned by Chester Coffman (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Coffman Dam built?
Coffman 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 Coffman Dam?
Coffman 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 Coffman Dam?
Coffman 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 Coffman Dam last inspected?
Coffman Dam was last inspected on November 29, 1960. Inspection dates indicate when a formal review occurred, not the results of that inspection.