State of South Dakota
Key Takeaway
State of South Dakota is classified as low hazard in South Dakota. It was completed in 1954 and is 72 years old. Its primary use is water supply.
Physical Details
| Dam Height | 12 ft (taller than 3% in SD) |
| Dam Length | 1,280 ft |
| Dam Type | Earth |
| Max Storage | 115 acre-ft |
| Normal Storage | 72 acre-ft |
| Max Discharge | 780 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | SD00960 |
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
Nearby Dams
Frequently Asked Questions
What is the hazard classification of State of South Dakota?
State of South Dakota 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 State of South Dakota?
State of South Dakota is owned by S&PL (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was State of South Dakota built?
State of South Dakota was completed in 1954, making it 72 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 State of South Dakota?
State of South Dakota serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is State of South Dakota?
State of South Dakota has a dam height of 12 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 State of South Dakota last inspected?
State of South Dakota was last inspected on November 4, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.