Larson Dam
Key Takeaway
Larson Dam is classified as low hazard in Iowa. It was completed in 1998 and is 28 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 38 ft (taller than 80.1% in IA) |
| Dam Length | 460 ft |
| Dam Type | Earth |
| Max Storage | 66 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1998 (28 years old) |
| NID ID | IA03239 |
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
Lester Larson
Private
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Low Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Larson Dam?
Larson 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 Larson Dam?
Larson Dam is owned by Lester Larson (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Larson Dam built?
Larson Dam was completed in 1998, making it 28 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 Larson Dam?
Larson Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Larson Dam?
Larson Dam has a dam height of 38 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.