Dunmore No 7 Reservoir
Key Takeaway
Dunmore No 7 Reservoir is classified as high hazard in Pennsylvania. It was completed in 1872 and is 154 years old. Its primary use is water supply. 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 | 45 ft (taller than 81.2% in PA) |
| Dam Length | 340 ft |
| Dam Type | Gravity |
| Max Storage | 570 acre-ft |
| Normal Storage | 310 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 50 sq mi |
| Year Completed | 1872 (154 years old) |
| NID ID | PA00363 |
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
PA AMERICAN WATER COMPANY
Private
Nearby Dams
Dunmore No 1
Lackawanna, PA
High Hazard 47 ftSediment Basin No 3
Lackawanna, PA
Low Hazard 20 ftSediment Basin No 4
Lackawanna, PA
Low Hazard 21 ftWilliams Bridge Reservoir
Lackawanna, PA
High Hazard 54 ftLake Scranton
Lackawanna, PA
High Hazard 60 ftMarshwood
Lackawanna, PA
High Hazard 14 ftDunmore No 3
Lackawanna, PA
Low Hazard 14 ftElmhurst
Lackawanna, PA
High Hazard 64 ftFrequently Asked Questions
What is the hazard classification of Dunmore No 7 Reservoir?
Dunmore No 7 Reservoir 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 Dunmore No 7 Reservoir?
Dunmore No 7 Reservoir is owned by PA AMERICAN WATER COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dunmore No 7 Reservoir built?
Dunmore No 7 Reservoir was completed in 1872, making it 154 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 Dunmore No 7 Reservoir?
Dunmore No 7 Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Dunmore No 7 Reservoir?
Dunmore No 7 Reservoir has a dam height of 45 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 Dunmore No 7 Reservoir last inspected?
Dunmore No 7 Reservoir was last inspected on June 16, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.