Centralia Coal Mine Dam No 36
Key Takeaway
Centralia Coal Mine Dam No 36 is classified as low hazard in Washington. It was completed in 1989 and is 37 years old. Its primary use is tailings.
Physical Details
| Dam Type | Earth |
| Max Storage | 130 acre-ft |
| Normal Storage | 57 acre-ft |
| Surface Area | 32 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 120 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | WA00572 |
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
Centralia Coal Mine Dam No 36a
Lewis, WA
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Low HazardCentralia Coal Mine Dam No 3a
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Low HazardCentralia Coal Mine Dam No 3c North
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Significant HazardCentralia Coal Mine Dam No 5c
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Low HazardCentralia Coal Mine Dam No 3c East
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Significant HazardCentralia Coal Mine Dam No 3c South
Lewis, WA
Significant HazardFrequently Asked Questions
What is the hazard classification of Centralia Coal Mine Dam No 36?
Centralia Coal Mine Dam No 36 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 36?
Centralia Coal Mine Dam No 36 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 36 built?
Centralia Coal Mine Dam No 36 was completed in 1989, making it 37 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 36?
Centralia Coal Mine Dam No 36 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 36 last inspected?
Centralia Coal Mine Dam No 36 was last inspected on August 8, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.