Stillwater Pond
Key Takeaway
Stillwater Pond is classified as significant hazard in Rhode Island. It was completed in 1885 and is 141 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 76.1% in RI) |
| Dam Length | 745 ft |
| Dam Type | Gravity |
| Max Storage | 170 acre-ft |
| Normal Storage | 125 acre-ft |
| Surface Area | 28 acres |
| Drainage Area | 30 sq mi |
| Max Discharge | 627 cfs |
| Year Completed | 1885 (141 years old) |
| NID ID | RI03102 |
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
BREAKWATER PRESERVATION CONSERVANCY
Private
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Stillwater Pond?
Stillwater Pond 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 Stillwater Pond?
Stillwater Pond is owned by BREAKWATER PRESERVATION CONSERVANCY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stillwater Pond built?
Stillwater Pond was completed in 1885, making it 141 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 Stillwater Pond?
Stillwater 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 Stillwater Pond?
Stillwater Pond has a dam height of 18 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 Stillwater Pond last inspected?
Stillwater Pond was last inspected on November 1, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.