Holz Dam
Key Takeaway
Holz Dam is classified as high hazard in West Virginia. It was completed in 1972 and is 54 years old. Its primary use is tailings. 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 Height | 203 ft (taller than 91.9% in WV) |
| Dam Length | 1,500 ft |
| Dam Type | Rockfill |
| Max Storage | 1.1K acre-ft |
| Normal Storage | 140 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 64 sq mi |
| Year Completed | 1972 (54 years old) |
| NID ID | WV03902 |
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
UNION CARBIDE CORPORATION-SC
Private
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High Hazard 36 ftFrequently Asked Questions
What is the hazard classification of Holz Dam?
Holz Dam 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 Holz Dam?
Holz Dam is owned by UNION CARBIDE CORPORATION-SC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Holz Dam built?
Holz Dam was completed in 1972, making it 54 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 Holz Dam?
Holz Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Holz Dam?
Holz Dam has a dam height of 203 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 Holz Dam last inspected?
Holz Dam was last inspected on June 18, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.