Mine No 84 - Pond 7
Key Takeaway
Mine No 84 - Pond 7 is classified as significant hazard in Pennsylvania. It was completed in 1980 and is 46 years old. Its primary use is debris control. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 36 ft (taller than 73.4% in PA) |
| Dam Length | 275 ft |
| Dam Type | Earth |
| Max Storage | 35 acre-ft |
| Normal Storage | 23 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1980 (46 years old) |
| NID ID | PA01243 |
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
EIGHTY-FOUR MINING COMPANY
Private
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High Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Mine No 84 - Pond 7?
Mine No 84 - Pond 7 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 Mine No 84 - Pond 7?
Mine No 84 - Pond 7 is owned by EIGHTY-FOUR MINING COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mine No 84 - Pond 7 built?
Mine No 84 - Pond 7 was completed in 1980, making it 46 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 Mine No 84 - Pond 7?
Mine No 84 - Pond 7 serves the following purposes: Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mine No 84 - Pond 7?
Mine No 84 - Pond 7 has a dam height of 36 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 Mine No 84 - Pond 7 last inspected?
Mine No 84 - Pond 7 was last inspected on September 29, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.