High Rock
Key Takeaway
High Rock is classified as high hazard in North Carolina. It was completed in 1927 and is 99 years old. Its primary use is hydroelectric. 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 | 65 ft (taller than 70.9% in NC) |
| Dam Length | 936 ft |
| Dam Type | Gravity |
| Max Storage | 287.0K acre-ft |
| Normal Storage | 248.8K acre-ft |
| Surface Area | 15,180 acres |
| Drainage Area | 3,980 sq mi |
| Max Discharge | 478,800 cfs |
| Year Completed | 1927 (99 years old) |
| NID ID | NC06521 |
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
Cube Yadkin Generation LLC
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of High Rock?
High Rock 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 High Rock?
High Rock is owned by Cube Yadkin Generation LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was High Rock built?
High Rock was completed in 1927, making it 99 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 High Rock?
High Rock serves the following purposes: Hydroelectric, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is High Rock?
High Rock has a dam height of 65 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 High Rock last inspected?
High Rock was last inspected on August 24, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.