Nagog Pond Dam
Key Takeaway
Nagog Pond Dam is classified as significant hazard in Massachusetts. It was completed in 1909 and is 117 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 15 ft (taller than 48.8% in MA) |
| Dam Length | 168 ft |
| Dam Type | Gravity |
| Max Storage | 3.1K acre-ft |
| Normal Storage | 2.7K acre-ft |
| Surface Area | 285 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1909 (117 years old) |
| NID ID | MA00129 |
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
TOWN OF CONCORD DEPT OF PUBLIC WORKS
Local Government
Nearby Dams
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Nagog Pond Dam?
Nagog Pond Dam 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 Nagog Pond Dam?
Nagog Pond Dam is owned by TOWN OF CONCORD DEPT OF PUBLIC WORKS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Nagog Pond Dam built?
Nagog Pond Dam was completed in 1909, making it 117 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 Nagog Pond Dam?
Nagog Pond Dam 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 Nagog Pond Dam?
Nagog Pond Dam has a dam height of 15 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 Nagog Pond Dam last inspected?
Nagog Pond Dam was last inspected on April 11, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.