Mays Chapel Reservoir
Key Takeaway
Mays Chapel Reservoir is classified as high hazard in Maryland. It was completed in 1965 and is 61 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 | 1,500 ft |
| Dam Type | Earth |
| Max Storage | 80 acre-ft |
| Normal Storage | 80 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1965 (61 years old) |
| Year Modified | 2002 |
| NID ID | MD00364 |
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
Baltimore City Dept of Public Works
Local Government
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High Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Mays Chapel Reservoir?
Mays Chapel 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 Mays Chapel Reservoir?
Mays Chapel Reservoir is owned by Baltimore City Dept of Public Works (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mays Chapel Reservoir built?
Mays Chapel Reservoir was completed in 1965, making it 61 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 Mays Chapel Reservoir?
Mays Chapel 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 Mays Chapel Reservoir?
Mays Chapel 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 Mays Chapel Reservoir last inspected?
Mays Chapel Reservoir was last inspected on December 22, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.