Riley Mill Dam - Lower Pond
Key Takeaway
Riley Mill Dam - Lower Pond is classified as low hazard in Maryland. It was completed in 1950 and is 76 years old. Its primary use is other.
Physical Details
| Dam Height | 14 ft (taller than 16.8% in MD) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 51 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 30 cfs |
| Year Completed | 1950 (76 years old) |
| NID ID | MD00355 |
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
Jack Bachmann
Private
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Significant Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Riley Mill Dam - Lower Pond?
Riley Mill Dam - Lower Pond 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 Riley Mill Dam - Lower Pond?
Riley Mill Dam - Lower Pond is owned by Jack Bachmann (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Riley Mill Dam - Lower Pond built?
Riley Mill Dam - Lower Pond was completed in 1950, making it 76 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 Riley Mill Dam - Lower Pond?
Riley Mill Dam - Lower Pond serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Riley Mill Dam - Lower Pond?
Riley Mill Dam - Lower Pond has a dam height of 14 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 Riley Mill Dam - Lower Pond last inspected?
Riley Mill Dam - Lower Pond was last inspected on November 20, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.