Judy Reservoir Dam A
Key Takeaway
Judy Reservoir Dam A is classified as high hazard in Washington. It was completed in 1946 and is 80 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Length | 687 ft |
| Dam Type | Earth |
| Max Storage | 5.1K acre-ft |
| Normal Storage | 4.4K acre-ft |
| Surface Area | 140 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 58 cfs |
| Year Completed | 1946 (80 years old) |
| NID ID | WA00183 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Skagit Cnty PUD No 1
Public Utility
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High HazardFrequently Asked Questions
What is the hazard classification of Judy Reservoir Dam A?
Judy Reservoir Dam A is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Judy Reservoir Dam A?
Judy Reservoir Dam A is owned by Skagit Cnty PUD No 1 (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Judy Reservoir Dam A built?
Judy Reservoir Dam A was completed in 1946, making it 80 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 Judy Reservoir Dam A?
Judy Reservoir Dam A serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Judy Reservoir Dam A last inspected?
Judy Reservoir Dam A was last inspected on August 8, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.