W. Holmes No.2
Key Takeaway
W. Holmes No.2 is classified as low hazard in South Dakota. It was completed in 1960 and is 66 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 22 ft (taller than 45.6% in SD) |
| Dam Length | 560 ft |
| Dam Type | Earth |
| Max Storage | 156 acre-ft |
| Normal Storage | 74 acre-ft |
| Max Discharge | 7,200 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | SD00768 |
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
WAYNE HOLMES
Private
Nearby Dams
W. Holmes No.1
Ziebach, SD
Low Hazard 28 ftW. Holmes No.3
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Low Hazard 27 ftWall Dam
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Low Hazard 20 ftCollins Dam
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Low Hazard 32 ftE. Hunt
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Low Hazard 29 ftMitchell Dam
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Low Hazard 25 ftC. Bennett
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Low Hazard 17 ftR. Fields No.4
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Low Hazard 21 ftFrequently Asked Questions
What is the hazard classification of W. Holmes No.2?
W. Holmes No.2 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 W. Holmes No.2?
W. Holmes No.2 is owned by WAYNE HOLMES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was W. Holmes No.2 built?
W. Holmes No.2 was completed in 1960, making it 66 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 W. Holmes No.2?
W. Holmes No.2 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 W. Holmes No.2?
W. Holmes No.2 has a dam height of 22 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.