Little Sioux Dam
Key Takeaway
Little Sioux Dam is classified as low hazard in Iowa. It was completed in 1963 and is 63 years old. Its primary use is other.
Physical Details
| Dam Height | 7 ft |
| Dam Length | 200 ft |
| Dam Type | Gravity |
| Max Storage | 500 acre-ft |
| Normal Storage | 500 acre-ft |
| Surface Area | 143 acres |
| Drainage Area | 4,507 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1963 (63 years old) |
| NID ID | IA03062 |
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
Little Sioux Inter-County Drainage District
Local Government
Nearby Dams
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High Hazard 47 ftLittle Sioux Scout Ranch Dam
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Low Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Little Sioux Dam?
Little Sioux 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 Little Sioux Dam?
Little Sioux Dam is owned by Little Sioux Inter-County Drainage District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Little Sioux Dam built?
Little Sioux Dam was completed in 1963, making it 63 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 Little Sioux Dam?
Little Sioux Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Little Sioux Dam?
Little Sioux Dam 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.