Stephen Mission
Key Takeaway
Stephen Mission is classified as low hazard in South Dakota. It was completed in 1943 and is 83 years old. Its primary use is water supply.
Physical Details
| Dam Height | 26 ft (taller than 65.2% in SD) |
| Dam Length | 540 ft |
| Dam Type | Earth |
| Max Storage | 260 acre-ft |
| Normal Storage | 122 acre-ft |
| Max Discharge | 9,030 cfs |
| Year Completed | 1943 (83 years old) |
| NID ID | SD00291 |
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
CROW CREEK TRIBE
Federal Government
Nearby Dams
Ambrose
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High HazardStephan Mission
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Low Hazard 19 ftStephen Mission
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Low Hazard 20 ftAikens Dam
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Low Hazard 25 ftK Lazy K Ranch
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Low Hazard 12 ftM. Oehlerking
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Low Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Stephen Mission?
Stephen Mission 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 Stephen Mission?
Stephen Mission is owned by CROW CREEK TRIBE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stephen Mission built?
Stephen Mission was completed in 1943, making it 83 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 Stephen Mission?
Stephen Mission 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 Stephen Mission?
Stephen Mission 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.