Cottonwood Field Station
Key Takeaway
Cottonwood Field Station is classified as low hazard in South Dakota. It was completed in 1937 and is 89 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 18 ft (taller than 24.1% in SD) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 126 acre-ft |
| Normal Storage | 72 acre-ft |
| Max Discharge | 1,200 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | SD01987 |
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
S&PL
State Government
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Cottonwood Field Station?
Cottonwood Field Station 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 Cottonwood Field Station?
Cottonwood Field Station is owned by S&PL (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cottonwood Field Station built?
Cottonwood Field Station 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 Cottonwood Field Station?
Cottonwood Field Station serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Cottonwood Field Station?
Cottonwood Field Station has a dam height of 18 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 Cottonwood Field Station last inspected?
Cottonwood Field Station was last inspected on November 1, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.