Smith No.1
Key Takeaway
Smith No.1 is classified as significant hazard in South Dakota. It was completed in 1972 and is 54 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 28 ft (taller than 77.7% in SD) |
| Dam Length | 420 ft |
| Dam Type | Earth |
| Max Storage | 112 acre-ft |
| Normal Storage | 56 acre-ft |
| Max Discharge | 2,635 cfs |
| Year Completed | 1972 (54 years old) |
| NID ID | SD01376 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
GLENN R. SMITH
Private
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Significant Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Smith No.1?
Smith No.1 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Smith No.1?
Smith No.1 is owned by GLENN R. SMITH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Smith No.1 built?
Smith No.1 was completed in 1972, making it 54 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 Smith No.1?
Smith 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 Smith No.1?
Smith No.1 has a dam height of 28 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.