Stoney Run Dam
Key Takeaway
Stoney Run Dam is classified as low hazard in South Dakota. It was completed in 1936 and is 90 years old. Its primary use is recreation.
Physical Details
| Dam Height | 20 ft (taller than 33.7% in SD) |
| Dam Length | 470 ft |
| Dam Type | Earth |
| Max Storage | 880 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 80 acres |
| Drainage Area | 54 sq mi |
| Max Discharge | 3,907 cfs |
| Year Completed | 1936 (90 years old) |
| NID ID | SD00692 |
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 Stoney Run Dam?
Stoney Run Dam 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 Stoney Run Dam?
Stoney Run Dam is owned by S&PL (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stoney Run Dam built?
Stoney Run Dam was completed in 1936, making it 90 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 Stoney Run Dam?
Stoney Run Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Stoney Run Dam?
Stoney Run Dam has a dam height of 20 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 Stoney Run Dam last inspected?
Stoney Run Dam was last inspected on September 9, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.