Mill #4 Tailings #1 Dam
Key Takeaway
Mill #4 Tailings #1 Dam is classified as significant hazard in Nevada. It was completed in 1989 and is 37 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 182 ft (taller than 97% in NV) |
| Dam Length | 6,100 ft |
| Dam Type | Earth |
| Max Storage | 4.9K acre-ft |
| Normal Storage | 4.8K acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 5 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | NV10245 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
NEVADA GOLD MINES LLC
Private
Nearby Dams
Barrick Goldstrike Tsf 3 Dam
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High Hazard 200 ftNorth Block Tailings Impoundment Dam
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High Hazard 520 ftA-A Tails Dam
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Significant Hazard 220 ftBarrick Roaster Pond Dam
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Significant Hazard 28 ftNorth Area Leach Stormwater Pond Dam
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Significant Hazard 30 ftNorth Area Leachate Pond Addition Dam
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Low Hazard 29 ftNewmont North Area Leachate Ponds Dam
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Low Hazard 25 ftMill #4 Tailings #2 Dam
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Significant Hazard 165 ftFrequently Asked Questions
What is the hazard classification of Mill #4 Tailings #1 Dam?
Mill #4 Tailings #1 Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mill #4 Tailings #1 Dam?
Mill #4 Tailings #1 Dam is owned by NEVADA GOLD MINES LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mill #4 Tailings #1 Dam built?
Mill #4 Tailings #1 Dam was completed in 1989, making it 37 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 Mill #4 Tailings #1 Dam?
Mill #4 Tailings #1 Dam 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 Mill #4 Tailings #1 Dam?
Mill #4 Tailings #1 Dam has a dam height of 182 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 Mill #4 Tailings #1 Dam last inspected?
Mill #4 Tailings #1 Dam was last inspected on May 13, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.