Stephan Mission
Key Takeaway
Stephan Mission is classified as low hazard in South Dakota. It was completed in 1937 and is 89 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 19 ft (taller than 29.5% in SD) |
| Dam Length | 625 ft |
| Dam Type | Earth |
| Max Storage | 288 acre-ft |
| Normal Storage | 120 acre-ft |
| Max Discharge | 875 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | SD00267 |
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
Tribal Government
Nearby Dams
Ambrose
Hyde, SD
High HazardStephen Mission
Hyde, SD
Low Hazard 26 ftK Lazy K Ranch
Hyde, SD
Low Hazard 12 ftK Lazy K Ranch
Hyde, SD
Low Hazard 15 ftM. Oehlerking
Hyde, SD
Low Hazard 19 ftStephen Mission
Hyde, SD
Low Hazard 34 ftL. Runestad
Hyde, SD
Low Hazard 15 ftM. Oehlerking
Hyde, SD
Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Stephan Mission?
Stephan 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 Stephan Mission?
Stephan Mission is owned by CROW CREEK TRIBE (Tribal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stephan Mission built?
Stephan Mission 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 Stephan Mission?
Stephan Mission 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 Stephan Mission?
Stephan Mission has a dam height of 19 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.