Lake Conewago
Key Takeaway
Lake Conewago is classified as significant hazard in Pennsylvania. It was completed in 1919 and is 107 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 37.7% in PA) |
| Dam Length | 270 ft |
| Dam Type | Earth |
| Max Storage | 96 acre-ft |
| Normal Storage | 77 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1919 (107 years old) |
| NID ID | PA00593 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
EASTERN ENTERPRISES, INC.
Private
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High Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Lake Conewago?
Lake Conewago is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lake Conewago?
Lake Conewago is owned by EASTERN ENTERPRISES, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Conewago built?
Lake Conewago was completed in 1919, making it 107 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 Lake Conewago?
Lake Conewago serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Conewago?
Lake Conewago has a dam height of 18 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 Lake Conewago last inspected?
Lake Conewago was last inspected on March 29, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.