York Haven Main Dam
Key Takeaway
York Haven Main Dam is classified as low hazard in Pennsylvania. It was completed in 1904 and is 122 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 10 ft (taller than 8.3% in PA) |
| Dam Length | 7,970 ft |
| Dam Type | Concrete |
| Max Storage | 7.8K acre-ft |
| Normal Storage | 7.8K acre-ft |
| Surface Area | 1,490 acres |
| Drainage Area | 24,973 sq mi |
| Max Discharge | 362,500 cfs |
| Year Completed | 1904 (122 years old) |
| NID ID | PA00515 |
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
York Haven Power Company, LLC
Public Utility
Nearby Dams
Brunner Island Ash Basin No 6
York, PA
Significant Hazard 39 ftNaylor Lower
York, PA
Significant Hazard 19 ftNaylor Middle
York, PA
Significant HazardRound Top
Dauphin, PA
Low Hazard 8 ftLake Placida
Lancaster, PA
High Hazard 6 ftMarsh Run Pond
York, PA
Unknown 9 ftSilver Lake
York, PA
High Hazard 6 ftCenter Campus Pond No. 1
Dauphin, PA
High Hazard 19 ftFrequently Asked Questions
What is the hazard classification of York Haven Main Dam?
York Haven Main Dam 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 York Haven Main Dam?
York Haven Main Dam is owned by York Haven Power Company, LLC (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was York Haven Main Dam built?
York Haven Main Dam was completed in 1904, making it 122 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 York Haven Main Dam?
York Haven Main Dam 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 York Haven Main Dam?
York Haven Main Dam has a dam height of 10 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 York Haven Main Dam last inspected?
York Haven Main Dam was last inspected on August 3, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.