Lang Dam No 1
Key Takeaway
Lang Dam No 1 is classified as high hazard in Washington. It was completed in 1956 and is 70 years old. Its primary use is fire protection. 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 | 140 ft |
| Dam Type | Earth |
| Max Storage | 21 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1956 (70 years old) |
| NID ID | WA01160 |
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
Lang, Lola & Dolores & Harry
Private
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High HazardFrequently Asked Questions
What is the hazard classification of Lang Dam No 1?
Lang Dam No 1 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 Lang Dam No 1?
Lang Dam No 1 is owned by Lang, Lola & Dolores & Harry (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lang Dam No 1 built?
Lang Dam No 1 was completed in 1956, making it 70 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 Lang Dam No 1?
Lang Dam No 1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Lang Dam No 1 last inspected?
Lang Dam No 1 was last inspected on October 24, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.