C.J. Larson No.1
Key Takeaway
C.J. Larson No.1 is classified as low hazard in South Dakota. It was completed in 1945 and is 81 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 22 ft (taller than 45.6% in SD) |
| Dam Length | 600 ft |
| Dam Type | Earth |
| Max Storage | 128 acre-ft |
| Normal Storage | 50 acre-ft |
| Max Discharge | 360 cfs |
| Year Completed | 1945 (81 years old) |
| NID ID | SD01712 |
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
C.J. LARSON
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of C.J. Larson No.1?
C.J. Larson 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 C.J. Larson No.1?
C.J. Larson No.1 is owned by C.J. LARSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was C.J. Larson No.1 built?
C.J. Larson No.1 was completed in 1945, making it 81 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 C.J. Larson No.1?
C.J. Larson 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 C.J. Larson No.1?
C.J. Larson No.1 has a dam height of 22 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.