Old Blowing Rock Water Supply Dam
Key Takeaway
Old Blowing Rock Water Supply Dam is classified as high hazard in North Carolina. It was completed in 1958 and is 68 years old. Its primary use is water supply. 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 | 325 ft |
| Dam Type | Earth |
| Max Storage | 76 acre-ft |
| Normal Storage | 61 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 340 sq mi |
| Max Discharge | 725 cfs |
| Year Completed | 1958 (68 years old) |
| NID ID | NC00414 |
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
Town of Blowing Rock
Local Government
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High HazardFrequently Asked Questions
What is the hazard classification of Old Blowing Rock Water Supply Dam?
Old Blowing Rock Water Supply 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 Old Blowing Rock Water Supply Dam?
Old Blowing Rock Water Supply Dam is owned by Town of Blowing Rock (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Old Blowing Rock Water Supply Dam built?
Old Blowing Rock Water Supply Dam was completed in 1958, making it 68 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 Old Blowing Rock Water Supply Dam?
Old Blowing Rock Water Supply Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Old Blowing Rock Water Supply Dam last inspected?
Old Blowing Rock Water Supply Dam was last inspected on March 10, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.