Centralia Coal Mine Dam No 5
Key Takeaway
Centralia Coal Mine Dam No 5 is classified as low hazard in Washington. It was completed in 1971 and is 55 years old. Its primary use is tailings.
Physical Details
| Dam Type | Earth |
| Max Storage | 176 acre-ft |
| Normal Storage | 95 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 356 cfs |
| Year Completed | 1971 (55 years old) |
| NID ID | WA00292 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
TransAlta Centralia Mining LLC
Public Utility
Nearby Dams
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Significant HazardFrequently Asked Questions
What is the hazard classification of Centralia Coal Mine Dam No 5?
Centralia Coal Mine Dam No 5 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Centralia Coal Mine Dam No 5?
Centralia Coal Mine Dam No 5 is owned by TransAlta Centralia Mining LLC (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Centralia Coal Mine Dam No 5 built?
Centralia Coal Mine Dam No 5 was completed in 1971, making it 55 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 Centralia Coal Mine Dam No 5?
Centralia Coal Mine Dam No 5 serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Centralia Coal Mine Dam No 5 last inspected?
Centralia Coal Mine Dam No 5 was last inspected on August 8, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.