U S A
Key Takeaway
U S A is classified as low hazard in South Dakota. It was completed in 1938 and is 88 years old. Its primary use is water supply.
Physical Details
| Dam Height | 26 ft (taller than 65.2% in SD) |
| Dam Length | 690 ft |
| Dam Type | Earth |
| Max Storage | 624 acre-ft |
| Normal Storage | 272 acre-ft |
| Max Discharge | 3,570 cfs |
| Year Completed | 1938 (88 years old) |
| NID ID | SD00441 |
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
DEPARTMENT OF INTERIOR USA
Federal Government
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Low Hazard 21 ftFrequently Asked Questions
What is the hazard classification of U S A?
U S A 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 U S A?
U S A is owned by DEPARTMENT OF INTERIOR USA (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was U S A built?
U S A was completed in 1938, making it 88 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 U S A?
U S A serves the following purposes: Water Supply, 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 U S A?
U S A has a dam height of 26 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.