Palmer Pearson No.1
Key Takeaway
Palmer Pearson No.1 is classified as low hazard in South Dakota. It was completed in 1960 and is 66 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 12 ft (taller than 3% in SD) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Max Storage | 129 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1960 (66 years old) |
| NID ID | SD01842 |
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
RIGGLE FAMILY LP
Private
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High Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Palmer Pearson No.1?
Palmer Pearson No.1 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 Palmer Pearson No.1?
Palmer Pearson No.1 is owned by RIGGLE FAMILY LP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Palmer Pearson No.1 built?
Palmer Pearson No.1 was completed in 1960, making it 66 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 Palmer Pearson No.1?
Palmer Pearson No.1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Palmer Pearson No.1?
Palmer Pearson No.1 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.