Weller No.1
Key Takeaway
Weller No.1 is classified as low hazard in South Dakota. It was completed in 1948 and is 78 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 17 ft (taller than 20.2% in SD) |
| Dam Length | 1,400 ft |
| Dam Type | Earth |
| Max Storage | 160 acre-ft |
| Normal Storage | 96 acre-ft |
| Max Discharge | 8,150 cfs |
| Year Completed | 1948 (78 years old) |
| NID ID | SD02001 |
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
WELLER
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Weller No.1?
Weller 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 Weller No.1?
Weller No.1 is owned by WELLER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Weller No.1 built?
Weller No.1 was completed in 1948, making it 78 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 Weller No.1?
Weller 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 Weller No.1?
Weller No.1 has a dam height of 17 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.