Grant Mine Tailings Dam
Key Takeaway
Grant Mine Tailings Dam is classified as significant hazard in Alaska. It was completed in 1987 and is 39 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 52.9% in AK) |
| Max Storage | 99 acre-ft |
| Surface Area | 3 acres |
| Year Completed | 1987 (39 years old) |
| NID ID | AK00409 |
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
Private
Frequently Asked Questions
What is the hazard classification of Grant Mine Tailings Dam?
Grant Mine Tailings 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 Grant Mine Tailings Dam?
Grant Mine Tailings Dam is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Grant Mine Tailings Dam built?
Grant Mine Tailings Dam was completed in 1987, making it 39 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 Grant Mine Tailings Dam?
Grant Mine Tailings 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 Grant Mine Tailings Dam?
Grant Mine Tailings Dam has a dam height of 30 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.