Sherman Mine Wastewater
Key Takeaway
Sherman Mine Wastewater is classified as low hazard in Minnesota. It was completed in 1953 and is 73 years old. Its primary use is tailings.
Physical Details
| Dam Height | 20 ft (taller than 60.7% in MN) |
| Dam Length | 3,200 ft |
| Dam Type | Earth |
| Max Storage | 115 acre-ft |
| Normal Storage | 87 acre-ft |
| Surface Area | 196 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1953 (73 years old) |
| NID ID | MN00797 |
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
Nearby Dams
Douglas Tailings
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Low Hazard 48 ftWabigone Tailings
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Low Hazard 11 ftWhitney Tailings
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Unknown 37 ftHibbing Taconite Starter No. 4
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Unknown 100 ftWest Two River
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Significant Hazard 40 ftHibbing Taconite Reclaim Pond
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High Hazard 100 ftFrequently Asked Questions
What is the hazard classification of Sherman Mine Wastewater?
Sherman Mine Wastewater 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 Sherman Mine Wastewater?
Sherman Mine Wastewater is owned by US Steel (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sherman Mine Wastewater built?
Sherman Mine Wastewater was completed in 1953, making it 73 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 Sherman Mine Wastewater?
Sherman Mine Wastewater 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 Sherman Mine Wastewater?
Sherman Mine Wastewater has a dam height of 20 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 Sherman Mine Wastewater last inspected?
Sherman Mine Wastewater was last inspected on August 22, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.