Perch Lake Dam
Key Takeaway
Perch Lake Dam is classified as low hazard in South Dakota. It was completed in 1977 and is 49 years old. Its primary use is fish and wildlife pond.
Physical Details
| Dam Height | 26 ft (taller than 65.2% in SD) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 472 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,292 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | SD02249 |
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
US FISH AND WILDLIFE SERVICE
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Perch Lake Dam?
Perch Lake 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 Perch Lake Dam?
Perch Lake Dam is owned by US FISH AND WILDLIFE SERVICE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Perch Lake Dam built?
Perch Lake Dam was completed in 1977, making it 49 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 Perch Lake Dam?
Perch Lake Dam serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Perch Lake Dam?
Perch Lake Dam 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.
When was Perch Lake Dam last inspected?
Perch Lake Dam was last inspected on October 21, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.