Mill Creek
Key Takeaway
Mill Creek is classified as high hazard in Pennsylvania. It was completed in 1898 and is 128 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 | 74 ft (taller than 92% in PA) |
| Dam Length | 1,345 ft |
| Dam Type | Earth |
| Max Storage | 2.4K acre-ft |
| Normal Storage | 1.9K acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1898 (128 years old) |
| NID ID | PA00548 |
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
PA AMERICAN WATER COMPANY
Private
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High Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Mill Creek?
Mill Creek 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 Mill Creek?
Mill Creek is owned by PA AMERICAN WATER COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mill Creek built?
Mill Creek was completed in 1898, making it 128 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 Mill Creek?
Mill Creek 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 Mill Creek?
Mill Creek has a dam height of 74 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 Mill Creek last inspected?
Mill Creek was last inspected on January 13, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.