Steffenson No. 2
Key Takeaway
Steffenson No. 2 is classified as low hazard in Wyoming. It was completed in 1971 and is 55 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 41 ft (taller than 89.1% in WY) |
| Dam Length | 930 ft |
| Dam Type | Earth |
| Max Storage | 182 acre-ft |
| Normal Storage | 123 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1971 (55 years old) |
| NID ID | WY00764 |
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
JAMES R. PURDY REVOCABLE TRUST
Private
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Significant Hazard 102 ftFrequently Asked Questions
What is the hazard classification of Steffenson No. 2?
Steffenson No. 2 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 Steffenson No. 2?
Steffenson No. 2 is owned by JAMES R. PURDY REVOCABLE TRUST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Steffenson No. 2 built?
Steffenson No. 2 was completed in 1971, making it 55 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 Steffenson No. 2?
Steffenson No. 2 serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Steffenson No. 2?
Steffenson No. 2 has a dam height of 41 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 Steffenson No. 2 last inspected?
Steffenson No. 2 was last inspected on July 31, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.