Knapp Dam
Key Takeaway
Knapp Dam is classified as low hazard in Iowa. It was completed in 1971 and is 55 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 34 ft (taller than 67.4% in IA) |
| Dam Length | 562 ft |
| Dam Type | Earth |
| Max Storage | 93 acre-ft |
| Normal Storage | 31 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1971 (55 years old) |
| NID ID | IA00367 |
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
John W Knapp
Private
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Low Hazard 36 ftFrequently Asked Questions
What is the hazard classification of Knapp Dam?
Knapp 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 Knapp Dam?
Knapp Dam is owned by John W Knapp (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Knapp Dam built?
Knapp Dam was completed in 1971, making it 55 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 Knapp Dam?
Knapp 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 Knapp Dam?
Knapp Dam has a dam height of 34 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.