Orl Walcott #1
Key Takeaway
Orl Walcott #1 is classified as significant hazard in South Dakota. It was completed in 1967 and is 59 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 53 ft (taller than 98.7% in SD) |
| Dam Length | 800 ft |
| Dam Type | Earth |
| Max Storage | 482 acre-ft |
| Normal Storage | 102 acre-ft |
| Surface Area | 6 acres |
| Max Discharge | 350 cfs |
| Year Completed | 1967 (59 years old) |
| NID ID | SD01152 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DEPT. OF TRANSPORTATION
State Government
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Orl Walcott #1?
Orl Walcott #1 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Orl Walcott #1?
Orl Walcott #1 is owned by DEPT. OF TRANSPORTATION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Orl Walcott #1 built?
Orl Walcott #1 was completed in 1967, making it 59 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 Orl Walcott #1?
Orl Walcott #1 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 Orl Walcott #1?
Orl Walcott #1 has a dam height of 53 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 Orl Walcott #1 last inspected?
Orl Walcott #1 was last inspected on November 5, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.