Blair Reservoir Dam
Key Takeaway
Blair Reservoir Dam is classified as high hazard in Washington. It was completed in 1937 and is 89 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 | 480 ft |
| Dam Type | Earth |
| Max Storage | 130 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 250 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | WA00059 |
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
Kennewick Irrigation District
Public Utility
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Low HazardFrequently Asked Questions
What is the hazard classification of Blair Reservoir Dam?
Blair Reservoir 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 Blair Reservoir Dam?
Blair Reservoir Dam is owned by Kennewick Irrigation District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Blair Reservoir Dam built?
Blair Reservoir Dam was completed in 1937, making it 89 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 Blair Reservoir Dam?
Blair Reservoir Dam serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Blair Reservoir Dam last inspected?
Blair Reservoir Dam was last inspected on September 19, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.