Perry-Wyman Tailings
Key Takeaway
Perry-Wyman Tailings is classified as low hazard in Minnesota. It was completed in 1949 and is 77 years old. Its primary use is tailings.
Physical Details
| Dam Height | 35 ft (taller than 89.8% in MN) |
| Dam Length | 2,400 ft |
| Dam Type | Earth |
| Max Storage | 300 acre-ft |
| Normal Storage | 100 acre-ft |
| Drainage Area | 8 sq mi |
| Year Completed | 1949 (77 years old) |
| NID ID | MN00777 |
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
US Steel
Private
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Unknown 18 ftEssar Steel Tailings Basin
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Significant Hazard 200 ftFrequently Asked Questions
What is the hazard classification of Perry-Wyman Tailings?
Perry-Wyman Tailings 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 Perry-Wyman Tailings?
Perry-Wyman Tailings is owned by US Steel (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Perry-Wyman Tailings built?
Perry-Wyman Tailings was completed in 1949, making it 77 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 Perry-Wyman Tailings?
Perry-Wyman Tailings serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Perry-Wyman Tailings?
Perry-Wyman Tailings has a dam height of 35 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 Perry-Wyman Tailings last inspected?
Perry-Wyman Tailings was last inspected on September 17, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.