Hanson Oaks Swm (Bmp Structure 1558-002)
Key Takeaway
Hanson Oaks Swm (Bmp Structure 1558-002) is classified as high hazard in Maryland. It was completed in 1900 and is 126 years old. Its primary use is flood risk reduction. 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 | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1900 (126 years old) |
| Year Modified | 1900 |
| NID ID | MD00622 |
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
Prince Georges County
Local Government
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High Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Hanson Oaks Swm (Bmp Structure 1558-002)?
Hanson Oaks Swm (Bmp Structure 1558-002) 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 Hanson Oaks Swm (Bmp Structure 1558-002)?
Hanson Oaks Swm (Bmp Structure 1558-002) is owned by Prince Georges County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hanson Oaks Swm (Bmp Structure 1558-002) built?
Hanson Oaks Swm (Bmp Structure 1558-002) was completed in 1900, making it 126 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 Hanson Oaks Swm (Bmp Structure 1558-002)?
Hanson Oaks Swm (Bmp Structure 1558-002) 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 Hanson Oaks Swm (Bmp Structure 1558-002)?
Hanson Oaks Swm (Bmp Structure 1558-002) 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 Hanson Oaks Swm (Bmp Structure 1558-002) last inspected?
Hanson Oaks Swm (Bmp Structure 1558-002) was last inspected on December 23, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.