P.E.C. Headworks
Key Takeaway
P.E.C. Headworks is classified as significant hazard in Washington. It was completed in 1990 and is 36 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 90 ft (taller than 58.7% in WA) |
| Dam Length | 74 ft |
| Dam Type | Concrete |
| Drainage Area | 3,600 sq mi |
| Year Completed | 1990 (36 years old) |
| NID ID | WA00752 |
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
Columbia Basin Hydropower
Private
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of P.E.C. Headworks?
P.E.C. Headworks 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 P.E.C. Headworks?
P.E.C. Headworks is owned by Columbia Basin Hydropower (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was P.E.C. Headworks built?
P.E.C. Headworks 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 P.E.C. Headworks?
P.E.C. Headworks serves the following purposes: Irrigation, Recreation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is P.E.C. Headworks?
P.E.C. Headworks has a dam height of 90 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 P.E.C. Headworks last inspected?
P.E.C. Headworks was last inspected on September 30, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.