Slurry Impoundment - Johns Washer
Key Takeaway
Slurry Impoundment - Johns Washer is classified as low hazard in Alabama. It was completed in 1979 and is 47 years old. Its primary use is other.
Physical Details
| Dam Length | 540 ft |
| Dam Type | Earth |
| Max Storage | 44 acre-ft |
| Normal Storage | 27 acre-ft |
| Max Discharge | 306 cfs |
| Year Completed | 1979 (47 years old) |
| NID ID | AL01573 |
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
BLACK DIAMOND COAL CO
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Slurry Impoundment - Johns Washer?
Slurry Impoundment - Johns Washer 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 Slurry Impoundment - Johns Washer?
Slurry Impoundment - Johns Washer is owned by BLACK DIAMOND COAL CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Slurry Impoundment - Johns Washer built?
Slurry Impoundment - Johns Washer was completed in 1979, making it 47 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 Slurry Impoundment - Johns Washer?
Slurry Impoundment - Johns Washer serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.