Mosquito Creek
Key Takeaway
Mosquito Creek is classified as high hazard in Pennsylvania. It was completed in 1890 and is 136 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 | 15 ft (taller than 27.6% in PA) |
| Dam Length | 1,201 ft |
| Dam Type | Earth |
| Max Storage | 64 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1890 (136 years old) |
| NID ID | PA01012 |
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
WILLIAMSPORT MUNICIPAL WATER AUTHORITY
Local Government
Nearby Dams
Frank E Heller
Lycoming, PA
High Hazard 73 ftAnthony J. Cimini
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Low Hazard 15 ftJohn C Youngman
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High Hazard 101 ftSgl #252 Road B
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Low Hazard 9 ftSgl #252 Road A
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Low Hazard 7 ftGreat Stream Commons Upper
Union, PA
Significant Hazard 17 ftGreat Stream Commons Lower
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Low Hazard 24 ftLocust Ridge Hunting Club
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Significant Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Mosquito Creek?
Mosquito 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 Mosquito Creek?
Mosquito Creek is owned by WILLIAMSPORT MUNICIPAL WATER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mosquito Creek built?
Mosquito Creek was completed in 1890, making it 136 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 Mosquito Creek?
Mosquito 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 Mosquito Creek?
Mosquito Creek has a dam height of 15 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 Mosquito Creek last inspected?
Mosquito Creek was last inspected on October 14, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.