Boone Milldam
Key Takeaway
Boone Milldam is classified as low hazard in Iowa. It was completed in 1932 and is 94 years old. Its primary use is water supply.
Physical Details
| Dam Height | 7 ft |
| Dam Length | 355 ft |
| Dam Type | Gravity |
| Max Storage | 387 acre-ft |
| Normal Storage | 387 acre-ft |
| Surface Area | 110 acres |
| Drainage Area | 5,510 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1932 (94 years old) |
| NID ID | IA01269 |
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
City of Boone
Local Government
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Low Hazard 37 ftFrequently Asked Questions
What is the hazard classification of Boone Milldam?
Boone Milldam 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 Boone Milldam?
Boone Milldam is owned by City of Boone (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Boone Milldam built?
Boone Milldam was completed in 1932, making it 94 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 Boone Milldam?
Boone Milldam serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Boone Milldam?
Boone Milldam has a dam height of 7 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 Boone Milldam last inspected?
Boone Milldam was last inspected on September 22, 1989. Inspection dates indicate when a formal review occurred, not the results of that inspection.