Larsen Dam
Key Takeaway
Larsen Dam is classified as low hazard in Iowa. It was completed in 1959 and is 67 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 38 ft (taller than 80.1% in IA) |
| Dam Length | 816 ft |
| Dam Type | Earth |
| Max Storage | 122 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | IA00957 |
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
Harold Larsen
Private
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What is the hazard classification of Larsen Dam?
Larsen 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 Larsen Dam?
Larsen Dam is owned by Harold Larsen (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Larsen Dam built?
Larsen Dam was completed in 1959, making it 67 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 Larsen Dam?
Larsen 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 Larsen Dam?
Larsen 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.
When was Larsen Dam last inspected?
Larsen Dam was last inspected on October 28, 1960. Inspection dates indicate when a formal review occurred, not the results of that inspection.