Herrick Lake
Key Takeaway
Herrick Lake is classified as low hazard in South Dakota. It was completed in 1937 and is 89 years old. Its primary use is recreation.
Physical Details
| Dam Height | 20 ft (taller than 33.7% in SD) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 255 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 860 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | SD00549 |
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
GF&P
State Government
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Herrick Lake?
Herrick Lake 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 Herrick Lake?
Herrick Lake is owned by GF&P (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Herrick Lake built?
Herrick Lake 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 Herrick Lake?
Herrick Lake 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 Herrick Lake?
Herrick Lake 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 Herrick Lake last inspected?
Herrick Lake was last inspected on November 12, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.