Lonaconing Reservoir
Key Takeaway
Lonaconing Reservoir is classified as high hazard in Maryland. It was completed in 1895 and is 131 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 | 20 ft (taller than 41.2% in MD) |
| Dam Length | 185 ft |
| Dam Type | Earth |
| Max Storage | 22 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 65 cfs |
| Year Completed | 1895 (131 years old) |
| NID ID | MD00251 |
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
Lonaconing Water Co
Local Government
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What is the hazard classification of Lonaconing Reservoir?
Lonaconing Reservoir 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 Lonaconing Reservoir?
Lonaconing Reservoir is owned by Lonaconing Water Co (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lonaconing Reservoir built?
Lonaconing Reservoir was completed in 1895, making it 131 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 Lonaconing Reservoir?
Lonaconing Reservoir 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 Lonaconing Reservoir?
Lonaconing Reservoir has a dam height of 20 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 Lonaconing Reservoir last inspected?
Lonaconing Reservoir was last inspected on December 29, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.