Washout
Key Takeaway
Washout is classified as low hazard in South Dakota. It was completed in 1947 and is 79 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 30 ft (taller than 85.2% in SD) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 144 acre-ft |
| Normal Storage | 130 acre-ft |
| Max Discharge | 1,470 cfs |
| Year Completed | 1947 (79 years old) |
| NID ID | SD00614 |
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
ANNA ROBINSON
Private
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Low Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Washout?
Washout 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 Washout?
Washout is owned by ANNA ROBINSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Washout built?
Washout was completed in 1947, making it 79 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 Washout?
Washout 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 Washout?
Washout has a dam height of 30 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.