Knox Road Detention
Key Takeaway
Knox Road Detention is classified as significant hazard in Pennsylvania. It was completed in 1979 and is 47 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 | 10 ft (taller than 8.3% in PA) |
| Dam Length | 480 ft |
| Dam Type | Earth |
| Max Storage | 8 acre-ft |
| Drainage Area | 0 sq mi |
| Year Completed | 1979 (47 years old) |
| NID ID | PA01484 |
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
TOWNSHIP OF LOWER MERION
Local Government
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Knox Road Detention?
Knox Road Detention 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 Knox Road Detention?
Knox Road Detention is owned by TOWNSHIP OF LOWER MERION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Knox Road Detention built?
Knox Road Detention was completed in 1979, making it 47 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 Knox Road Detention?
Knox Road Detention 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 Knox Road Detention?
Knox Road Detention has a dam height of 10 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 Knox Road Detention last inspected?
Knox Road Detention was last inspected on March 22, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.