Pond 7 Dam
Key Takeaway
Pond 7 Dam is classified as significant hazard in Alaska. It was completed in 2005 and is 21 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 52.9% in AK) |
| Dam Length | 780 ft |
| Dam Type | Rockfill |
| Max Storage | 33 acre-ft |
| Normal Storage | 31 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 70 cfs |
| Year Completed | 2005 (21 years old) |
| NID ID | AK00307 |
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
HECLA GREENS CREEK MINING COMPANY
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Pond 7 Dam?
Pond 7 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 Pond 7 Dam?
Pond 7 Dam is owned by HECLA GREENS CREEK MINING COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pond 7 Dam built?
Pond 7 Dam was completed in 2005, making it 21 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 Pond 7 Dam?
Pond 7 Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Pond 7 Dam?
Pond 7 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.
When was Pond 7 Dam last inspected?
Pond 7 Dam was last inspected on September 9, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.