Newman Lake Flood Control Dam
Key Takeaway
Newman Lake Flood Control Dam is classified as high hazard in Washington. It was completed in 1976 and is 50 years old. Its primary use is flood risk reduction. 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 | 8,400 ft |
| Dam Type | Earth |
| Max Storage | 11.3K acre-ft |
| Normal Storage | 8.7K acre-ft |
| Surface Area | 1,200 acres |
| Drainage Area | 28 sq mi |
| Max Discharge | 285 cfs |
| Year Completed | 1976 (50 years old) |
| NID ID | WA00396 |
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
Newman Lake Flood Control Zone District
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Newman Lake Flood Control Dam?
Newman Lake Flood Control 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 Newman Lake Flood Control Dam?
Newman Lake Flood Control Dam is owned by Newman Lake Flood Control Zone District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Newman Lake Flood Control Dam built?
Newman Lake Flood Control Dam was completed in 1976, making it 50 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 Newman Lake Flood Control Dam?
Newman Lake Flood Control Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Newman Lake Flood Control Dam last inspected?
Newman Lake Flood Control Dam was last inspected on October 11, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.