Speights Run Dam
Key Takeaway
Speights Run Dam is classified as high hazard in Virginia. 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 | 26 ft (taller than 51.6% in VA) |
| Dam Length | 650 ft |
| Dam Type | Earth |
| Max Storage | 4.0K acre-ft |
| Normal Storage | 479 acre-ft |
| Surface Area | 197 acres |
| Drainage Area | 13 sq mi |
| NID ID | VA800010 |
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 Portsmouth Department of Public Utilities
Local Government
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Speights Run Dam?
Speights Run 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 Speights Run Dam?
Speights Run Dam is owned by City of Portsmouth Department of Public Utilities (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Speights Run Dam?
Speights Run 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 Speights Run Dam?
Speights Run Dam has a dam height of 26 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 Speights Run Dam last inspected?
Speights Run Dam was last inspected on May 10, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.