Bonnie Rose Lake Dam
Key Takeaway
Bonnie Rose Lake Dam is classified as significant hazard in Alaska. It was completed in 1943 and is 83 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 11.8% in AK) |
| Dam Length | 60 ft |
| Dam Type | Buttress |
| Max Storage | 2.3K acre-ft |
| Normal Storage | 2.1K acre-ft |
| Surface Area | 120 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,000 cfs |
| Year Completed | 1943 (83 years old) |
| NID ID | AK00108 |
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
CITY OF ADAK
Local Government
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Significant HazardFrequently Asked Questions
What is the hazard classification of Bonnie Rose Lake Dam?
Bonnie Rose Lake 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 Bonnie Rose Lake Dam?
Bonnie Rose Lake Dam is owned by CITY OF ADAK (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Bonnie Rose Lake Dam built?
Bonnie Rose Lake Dam was completed in 1943, making it 83 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 Bonnie Rose Lake Dam?
Bonnie Rose Lake Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Bonnie Rose Lake Dam?
Bonnie Rose Lake Dam has a dam height of 10 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 Bonnie Rose Lake Dam last inspected?
Bonnie Rose Lake Dam was last inspected on November 10, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.