Mossy Pond Dam
Key Takeaway
Mossy Pond Dam is classified as significant hazard in Massachusetts. It was completed in 1876 and is 150 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 18% in MA) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 670 acre-ft |
| Normal Storage | 201 acre-ft |
| Surface Area | 134 acres |
| Drainage Area | 5 sq mi |
| Year Completed | 1876 (150 years old) |
| NID ID | MA02759 |
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
TYCA CORPORATION
Private
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High Hazard 44 ftFrequently Asked Questions
What is the hazard classification of Mossy Pond Dam?
Mossy 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 Mossy Pond Dam?
Mossy Pond Dam is owned by TYCA CORPORATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mossy Pond Dam built?
Mossy Pond Dam was completed in 1876, making it 150 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 Mossy Pond Dam?
Mossy Pond Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mossy Pond Dam?
Mossy Pond Dam 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 Mossy Pond Dam last inspected?
Mossy Pond Dam was last inspected on April 18, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.