Mary Lee Lane Swm Dam
Key Takeaway
Mary Lee Lane Swm Dam is classified as significant hazard in Maryland. It was completed in 1985 and is 41 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 11 ft (taller than 7.4% in MD) |
| Dam Type | Earth |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1985 (41 years old) |
| NID ID | MD00506 |
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
Howard County
Local Government
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Significant Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Mary Lee Lane Swm Dam?
Mary Lee Lane Swm Dam 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 Mary Lee Lane Swm Dam?
Mary Lee Lane Swm Dam is owned by Howard County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mary Lee Lane Swm Dam built?
Mary Lee Lane Swm Dam was completed in 1985, making it 41 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 Mary Lee Lane Swm Dam?
Mary Lee Lane Swm Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mary Lee Lane Swm Dam?
Mary Lee Lane Swm Dam has a dam height of 11 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 Mary Lee Lane Swm Dam last inspected?
Mary Lee Lane Swm Dam was last inspected on April 8, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.