Holtwood
Key Takeaway
Holtwood is classified as low hazard in Pennsylvania. It was completed in 1910 and is 116 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 55 ft (taller than 86.9% in PA) |
| Dam Length | 3,075 ft |
| Dam Type | Gravity |
| Max Storage | 19.0K acre-ft |
| Normal Storage | 19.0K acre-ft |
| Surface Area | 2,400 acres |
| Drainage Area | 26,794 sq mi |
| Max Discharge | 800,500 cfs |
| Year Completed | 1910 (116 years old) |
| NID ID | PA00854 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
BIF III Holtwood LLC
Public Utility
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High Hazard 36 ftFrequently Asked Questions
What is the hazard classification of Holtwood?
Holtwood is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Holtwood?
Holtwood is owned by BIF III Holtwood LLC (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Holtwood built?
Holtwood was completed in 1910, making it 116 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 Holtwood?
Holtwood serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Holtwood?
Holtwood has a dam height of 55 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 Holtwood last inspected?
Holtwood was last inspected on November 15, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.