Evans Konnowac Dam
Key Takeaway
Evans Konnowac Dam is classified as high hazard in Washington. It was completed in 1990 and is 36 years old. Its primary use is irrigation. 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 | 320 ft |
| Dam Type | Earth |
| Max Storage | 28 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 50 cfs |
| Year Completed | 1990 (36 years old) |
| NID ID | WA01933 |
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
Evans Fruit Co Inc
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Evans Konnowac Dam?
Evans Konnowac Dam 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 Evans Konnowac Dam?
Evans Konnowac Dam is owned by Evans Fruit Co Inc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Evans Konnowac Dam built?
Evans Konnowac Dam was completed in 1990, making it 36 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 Evans Konnowac Dam?
Evans Konnowac Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Evans Konnowac Dam last inspected?
Evans Konnowac Dam was last inspected on October 1, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.