Empire Mine Tertiary Pond Dam
Key Takeaway
Empire Mine Tertiary Pond Dam is classified as low hazard in Michigan. It was completed in 1975 and is 51 years old. Its primary use is other.
Physical Details
| Dam Height | 90 ft (taller than 99.1% in MI) |
| Dam Length | 850 ft |
| Dam Type | Earth |
| Max Storage | 3.3K acre-ft |
| Normal Storage | 3.3K acre-ft |
| Surface Area | 93 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | MI00101 |
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
Empire Iron Mining Partnership
Private
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High Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Empire Mine Tertiary Pond Dam?
Empire Mine Tertiary Pond Dam 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 Empire Mine Tertiary Pond Dam?
Empire Mine Tertiary Pond Dam is owned by Empire Iron Mining Partnership (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Empire Mine Tertiary Pond Dam built?
Empire Mine Tertiary Pond Dam was completed in 1975, making it 51 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 Empire Mine Tertiary Pond Dam?
Empire Mine Tertiary Pond Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Empire Mine Tertiary Pond Dam?
Empire Mine Tertiary Pond Dam has a dam height of 90 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 Empire Mine Tertiary Pond Dam last inspected?
Empire Mine Tertiary Pond Dam was last inspected on September 1, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.