Harmon Creek (Pa-484)
Key Takeaway
Harmon Creek (Pa-484) is classified as high hazard in Pennsylvania. It was completed in 1971 and is 55 years old. Its primary use is flood risk reduction. 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 | 67 ft (taller than 90.9% in PA) |
| Dam Length | 320 ft |
| Dam Type | Earth |
| Max Storage | 190 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1971 (55 years old) |
| NID ID | PA00489 |
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
WASHINGTON COUNTY
Local Government
Nearby Dams
Pa-479
Washington, PA
High Hazard 63 ftPa-485
Washington, PA
High Hazard 78 ftPa-486
Washington, PA
High Hazard 86 ftPa-483
Washington, PA
High Hazard 74 ftPa-480
Washington, PA
High Hazard 66 ftHarmon Creek #13
Brooke, WV
High Hazard 73 ftPa-482
Washington, PA
High Hazard 38 ftHarmon Creek No. 4 Dam
Brooke, WV
High Hazard 64 ftFrequently Asked Questions
What is the hazard classification of Harmon Creek (Pa-484)?
Harmon Creek (Pa-484) 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 Harmon Creek (Pa-484)?
Harmon Creek (Pa-484) is owned by WASHINGTON COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Harmon Creek (Pa-484) built?
Harmon Creek (Pa-484) was completed in 1971, making it 55 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 Harmon Creek (Pa-484)?
Harmon Creek (Pa-484) serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Harmon Creek (Pa-484)?
Harmon Creek (Pa-484) has a dam height of 67 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 Harmon Creek (Pa-484) last inspected?
Harmon Creek (Pa-484) was last inspected on November 2, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.