Woodruff
Key Takeaway
Woodruff is classified as low hazard in South Dakota. It was completed in 1937 and is 89 years old. Its primary use is recreation.
Physical Details
| Dam Height | 32 ft (taller than 90.4% in SD) |
| Dam Length | 975 ft |
| Dam Type | Earth |
| Max Storage | 540 acre-ft |
| Normal Storage | 120 acre-ft |
| Max Discharge | 2,500 cfs |
| Year Completed | 1937 (89 years old) |
| Year Modified | 2010 |
| NID ID | SD00025 |
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
GF&P
State Government
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Woodruff?
Woodruff 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 Woodruff?
Woodruff is owned by GF&P (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Woodruff built?
Woodruff was completed in 1937, making it 89 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 Woodruff?
Woodruff serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Woodruff?
Woodruff has a dam height of 32 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 Woodruff last inspected?
Woodruff was last inspected on August 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.