Upper York Reservoir Dam
Key Takeaway
Upper York Reservoir Dam is classified as high hazard in South Carolina. It was completed in 1926 and is 100 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 Height | 20 ft (taller than 46.1% in SC) |
| Max Storage | 190 acre-ft |
| Normal Storage | 159 acre-ft |
| Surface Area | 16 acres |
| Year Completed | 1926 (100 years old) |
| NID ID | SC00665 |
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
CITY OF YORK
Local Government
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Upper York Reservoir Dam?
Upper York Reservoir 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 Upper York Reservoir Dam?
Upper York Reservoir Dam is owned by CITY OF YORK (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper York Reservoir Dam built?
Upper York Reservoir Dam was completed in 1926, making it 100 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 Upper York Reservoir Dam?
Upper York Reservoir 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.
How tall is Upper York Reservoir Dam?
Upper York Reservoir Dam has a dam height of 20 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 Upper York Reservoir Dam last inspected?
Upper York Reservoir Dam was last inspected on September 24, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.