Herrington Manor
Key Takeaway
Herrington Manor is classified as low hazard in Maryland. It was completed in 1938 and is 88 years old. Its primary use is recreation.
Physical Details
| Dam Height | 24 ft (taller than 57.8% in MD) |
| Dam Length | 787 ft |
| Dam Type | Earth |
| Max Storage | 722 acre-ft |
| Normal Storage | 216 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 3,235 cfs |
| Year Completed | 1938 (88 years old) |
| NID ID | MD00012 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MD DNR-Public Lands, Engineering & Constr-Western
State Government
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High Hazard 41 ftFrequently Asked Questions
What is the hazard classification of Herrington Manor?
Herrington Manor is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Herrington Manor?
Herrington Manor is owned by MD DNR-Public Lands, Engineering & Constr-Western (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Herrington Manor built?
Herrington Manor was completed in 1938, making it 88 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 Herrington Manor?
Herrington Manor serves the following purposes: Recreation, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Herrington Manor?
Herrington Manor has a dam height of 24 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 Herrington Manor last inspected?
Herrington Manor was last inspected on August 21, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.